2027 Pacific Typhoon Season (PTC 10)

The 2027 Pacific typhoon season experienced hyperactive tropical cyclone activity. The season had no official bounds; it ran year-round in 2027, but most tropical cyclones tend to form in the northwestern Pacific Ocean between June and December. These dates conventionally delimit the period of each year when most tropical cyclones form in the northwestern Pacific Ocean.

The scope of this article is limited to the Pacific Ocean, north of the equator and west of the international date line. Storms that form east of the date line and north of the equator are called hurricanes; see 2027 Pacific hurricane season. Tropical storms formed in the entire west Pacific basin were assigned a name by the Joint Typhoon Warning Center. Tropical depressions in this basin have the "W" suffix added to their number.

A full evaluation of constraints of this hypo will be found after the storms. '''IMAGES ARE FALSELY NAMED AND WILL BE CHANGED PREFERABLY SOON. TRUE SOURCES ARE AVAILABLE UNDER HYPO CONSTRAINTS.'''

Seasonal Summary
The Accumulated Cyclone Energy (ACE) index for the 2027 Pacific typhoon season in total is TBD units. Broadly speaking, ACE is a measure of the power of a tropical or subtropical storm multiplied by the length of time it existed. It is only calculated for full advisories on specific tropical and subtropical systems reaching or exceeding wind speeds of 39 mph (63 km/h).

The 2027 pacific typhoon season is considered to be hyperactive from the beginning, with some agencies forecasting as much as 8 super typhoons. This is due to an extreme El Niño event that originated during the latter months of 2026, which would increase the amount of cyclone genesis as well as a well above average amount of strong typhoons in the western pacific.

The first storm formed in the western main development region as early as January, becoming category 5 super typhoon Champi, which made a category landfall in Mindanao and caused severe landslides. Soon after, severe tropical In-fa formed and brought more misery to the Philippines. Typhoon Alina then picked up the relay, becoming a category 3 typhoon in March, affecting the Marshall islands. In may, the season sprung into further extreme activity by two twin category 5 super typhoons, Nida and Waltz, which affected the Philippines and the Mariana Islands. In June, Typhoon Mindulle formed in the far open "El niño" region of the Western pacific, and rapidly intensified into another category 5 super typhoon after affecting the Mariana islands, being the fourth one of the season as early as June. Category 5 major hurricane Guillermo then crossed into the Western pacific basin, becoming a category 5 super typhoon. Gigantic Guillermo then entered into Tokyo bay, wrecking havoc across the entire nation with catastrophic rains and landslides, and became the costliest typhoon ever, and the second costliest tropical cyclone ever in world history. A brief tropical storm later, Typhoon Orca will bring the same misery to China, intensifying into extreme strength well past the Ryuku islands, and slammed into China causing catastrophic damage.

In August, twin category 5 super typhoons; Megi and Chaba both attained one minuet sustained winds of 285km/h (180 mph) and a pressure of 900mb. Whilst Megi severely affected Hong Kong, Chaba torn through western Japan as a significant typhoon, followed by category 4 typhoon Aere, which affected the Ryuku islands and eastern China. September then saw a decrease in the number of storms, but an increase in strength. Typhoon Trases and Mulan both formed into strong typhoons and affected the Philippines, causing severe damage and casualties there as well as in Vietnam. After that, the basin cleared out for Typhoon Ka-go, which rapidly intensified into another gigantic category 5 super typhoon. Ka-go then effected the same place Orca effected with an even larger size and a ferocious storm surge.

Activity in October is mainly dominated by storms with extreme strength. Typhoon Kurimori underwent extreme rapid intensification west of the Mariana Islands into another category 5 super typhoon and eventually went on to affect Japan severely. Later, the season met its strongest storms. Typhoon Mika reached an unprecidented intensity with one minuet sustained winds of 315km/h (195 mph) east of the Philippines. Typhoon Nonna followed a week later with the same intensity while making landfall on Saipan, making it the strongest landfall in recorded history. After that came Nanmadol and Talas, the latter one crossed into the Bay of Bengal and became a category 5 cyclone in its own right. November came Typhoon Noru, another extremely powerful late season category 5 super typhoon. The season ended with extremely powerful December category 5 super typhoon Sonca, which made a catastrophic landfall at peak in the same region that historic Typhoon Haiyan struck 14 years ago, had one minuet sustained winds of 305km/h (190 mph).

Typhoon Champi
On January 10, the JTWC a tropical depression only 0.8°N of the equator southwest of Pohnpei in the Caroline Islands. It quickly organised and on January 14 both JTWC and JMA upgraded it to a Tropical Depression, which was designated as 01W by the JTWC. During January 15, 01W strengthened gradually and intensified into tropical storm status by that evening according to the JMA, receiving the name Champi. On January 17, as the system continued to strengthen, and underwent rapidl intensification into a typhoon later that day, then into a category 5 super typhoon with 1-minuet sustained winds of 260 km/h (160 mph) on January 19. Champi made landfall as a Category 5 Super Typhoon. After landfall in Visayas and Mindanao, Champi weakened to tropical storm as it passed through Palawan island. The storm then encountered severe wind shear as it accelerated northeast and rapidly dissipated east of Luzon on January 22.

Throughout Mindanao, Champi dealt widespread damage from devastating winds and rainfall. At least 1210 deaths has been attributed to this storm mainly due to landslides and flash floods. At the same time, total damages is the Philippines were countered to be US$ 2.25 billion.

Severe Tropical Storm In-fa
DESCRIPTION RMOVED 472 people were also killed due to flooding in Mindanao. Estimated damages are around US$412 million.

Typhoon Alina
DESCRIPTION REMOVED US$25 million.

Tropical Depression 04W
DESCRIPTION REMOVED 166 people were killed, and damages were assessed to be around US$749 million.

Tropical Storm Nepartak
DESCRIPTION REMOVED Around 10,400 people were affected by the storm and there were at least 24 fatalities attributed to it. Total agricultural damages totalled were estimated to be US$8.11 million)

Tropical Storm Lupit
On April 16, the JMA designated a new tropical depression that developed near Guam. The JTWC followed suit, designating 06W. On April 18, JMA upgraded the depression to a tropical storm, hence receiving the name Lupit. The storm then started moving northeast and underwent extratropical transition, as both the JMA and the JTWC issued their final advisory on the storm.

Typhoon Sarmi
On March 26, the JTWC identified a broad area of low pressure in the Western North Pacific. It moved west-northwestward over the next few days, slowly gaining organization. According to the Japan Meteorological Agency, it became a tropical depression on April 20. The next day, the Joint Typhoon Warning Center issued a Tropical Cyclone Formation Alert due to an increased consolidation of the low-level circulation of the system. The JTWC issued its first warning on Tropical Depression 07W late that evening local time. As it continued to strengthen, the JTWC upgraded it to a tropical storm, the sixth of the season. The JMA followed suit, and named the system Sarmi.

Sarmi organized further and intensified into a severe tropical two days later. The JTWC then upgraded it to a typhoon on April 23. When Sarmi underwent a more northern track west of the the Northern Mariana Islands, the Mariana Islands is declared safe by the national weather service. It strengthened slightly further before encountering lower ocean heat content, and therefore was downgraded back to a severe tropical storm on April 24. As Kong-rey accelerated towards the northeast, it completed extratropical transition early on April 26 and the JTWC issued its final warning. The JMA then followed suit

Typhoon Nida
DESCRIPTION REMOVED The storm did not cause extensive damage to the Philippines due to the fact that the strongest winds of the eastern eyewall did not come ashore. Damages were totalled to be around US$1.1 million and at least 4 fatalities were attributed to the storm mainly from landslides and flash floods.

Typhoon Waltz
DESCRIPTION REMOVED On May 24, Waltz made landfall on Rota as a category 2 typhoon, and damages were assessed to be US$15.5 million with 2 fatalities.

Severe Tropical Storm Conson
DESCRIPTION REMOVED Total economic losses in Guangdong province and Hong Kong were estimated to be at CN¥535.9 million (US$76.4 million).

Tropical Storm Chanthu
DESCRIPTION REMOVED Damages in Vietnam and China were counted as US$53.3 million, with 18 Fatalities.

Typhoon Dianmu
DESCRIPTION REMOVED There has been at least 247.58 million (US$4.9 million) worth of damages in the Philippines alone, Adding on to the damage totalled in Taiwan and mainland China, this puts the total damage of Dianmu to be US$3.66 billion, mainly due to the torrential rainfall and landslides over Taiwan. The Fatalities were counted to be as high as 91.

Typhoon Mindulle
DESCRIPTION REMOVED throughout central Japan, Mindulle dropped torrential rainfall mudslides and floods, dealing at least US$3 million (¥327 million JPY) in crop damage and two deaths.

Tropical Depression 14W
DESCRIPTION REMOVED

Tropical Storm Lionrock
DESCRIPTION REMOVED Lionrock made landfall shortly after over Wenling, in Taizhou of Zhejiang, China, on the morning of July 7. Later that day, the JTWC issued their final advisory on Lionrock, and the JMA followed suit hours later. In East China, Lionrock killed a total of 4 people and total damages were counted to be CN¥1.3 billion (US$185 million).

Tropical Storm Kompasu
DESCRIPTION REMOVED Damages done by Kompasu is totalled to be US$1.5 million, while 14 fatalities were attributed to Kompasu from the landslides in Luzon.

Typhoon Guillermo
On July, Hurricane Guillermo crossed the International Date Line and entered the JMA's AOR in July 15, where it became a typhoon. Guillermo crossed the international date line as a category 5 major hurricane, the only other to do so after Hurricane/Typhoon Ioke of 2006. The system maintained super typhoon intensity until July 20 with fluctuations in intensity during that time. Guillermo also sustained super typhoon strength for 5 days, which is tied with Fengshen from 2002, Ioke from 2006, and Joan from 1997 for the longest sustained super typhoon in the Western Pacific basin. Late on July 19, an eyewall replacement cycle caused Guillermo to weaken below super typhoon status, and it weakened further to a category 2 strength. At the same strength Guillermo is about 1300km northeast of Saipan and started to turn northeast towards Japan. Guillermo also expanded due to the eyewall replacement cycle and gale extended 1060km away from the center, making Guillermo one of the largest tropical cyclone ever recorded.

Guillermo then made landfall in the southwestern tip of Chiba prefecture on July 23, before reemerging in Tokyo bay as an extremely massive category 1 typhoon. The storm caused catastrophic rainfall and storm surge throughout the western coast of Tokyo bay, with a massive 6.1m storm surge (20 ft) in some areas such as Tokyo and Yokohama. With that much water, the drainage system of Tokyo was quickly overwhelmed and record level flooding occurred throughout the region. Guillermo then made the final landfall northwest of Chiba city, still as a devastating category 1 typhoon. Due to the extremely large wind field, at least 10 prefectures recorded sustained wind speeds of at least 120km/h (75 mph), as well as record breaking rainfall, which destroyed multiple busy rail lines and highways connecting the country due to landslides from the long lasting and torrential rain. Typhoon Guillermo will go down as one of the costliest natural disasters in human history with damages totalled to be a whopping US$185 billion (¥20.2 trillion JPY). Guillermo also triggered the largest evacuation from any tropical in history at an estimated 3 - 4.5 million people in total. As a result, landslides over rail and roads only lead to a further loss of life. The death toll is estimated to be at least 580.

Tropical Storm Namtheum
On July 17, JMA assigned a new tropical depression 600km southeast of Okinawa, and the JTWC followed suit hours later. Late on July 18, both the JTWC and the JMA upgraded tropical depression 17W to tropical status, hence receiving the name Namtheum. Namtheum continued to slowly move west before it stalled and turned northeast, where it reached a peak intensity of ten-minute maximum sustained winds at 95 km/h (60 mph). The storm then was caught by the mid latitude jet stream and accelerated northeast towards Japan. No fatalities were attributed to the storm and damage is minimal.

Typhoon Orca
The JTWC identified a tropical depression near the Caroline Islands late on July 22. The JMA designated it as such shortly after. Tropical depression 18W then meandered west until the JMA declared 18W a tropical storm, receiving the name Orca, and the JTWC followed suit. Orca quickly accelerated northwest as it quickly intensified into a minimum typhoon according to both the JMA and the JTWC on August 26. It eventually reached super typhoon status on July 28 with a pinhole eye and a one-minute maximum sustained winds of 240 km/h (150 mph). It then weakened to a minimum category 4 typhoon later that day due to an eyewall replacement cycle. Shortly afterwards, Orca restrengthened again to the same intensity. A Chinese military vessel measured a pressure of 902 mb as well as a gust of 171 kt (317km/h) before it sank in the east china sea, prompting the possibility that Orca was actually much stronger, perhaps record breaking in the east china sea. However, the best track intensity is kept at 240km/h (150 mph) due to its anomalously warm cloud tops scoring only a T6.5 on the Dvorak technique as well as a lack of support from satellite consensus.

Orca made landfall in Zhoushan archipelago of northern Zhejiang province, China on July 30 with maximum one minuet sustained winds of 205km/h (125 mph), with a land station measuring a minimum pressure of 924mb 5km north of the eye. Orca devastated the Zhoushan archipelago with multiple bridges and pylons between islands destroyed. Later that day, Orca moved over Hangzhou bay before making another landfall on the south side of shanghai as a category 2 typhoon with one minuet sustained winds of 175km/h (110 mph), resulting in extensive damage as the city suffered from a prolonged blackout and a flood. In addition, storm surge funneled west combined with a full moon tide and flooded more cities down the funnel-like bay, resulting in global record breaking tides of 13.7m (45 ft), which completely flooded Hangzhou. Orca then moved further northeast and meandered through the yellow sea and Bohai bay, causing large gale winds. Multiple cargo ship and cruises were sank due to the storm. Along with typhoon Guillermo, Typhoon Orca will also go down as one of the costliest natural disasters in human history with damages totalled to be a whopping US$174 billion (¥1.22 trillion CNY). The death toll is estimated to be at least 1020.

Typhoon Nyatoh
Early on August 1, JTWC noticed a tropical disturbance became tropical depression 19W, and the JMA followed suit. 19W organized quickly and was upgraded to tropical storm status later that day by both the JTWC and the JMA, hence receiving the name Nyatoh. Nyatoh then turned westward and attained typhoon status on the evening of August 3. Nyatoh then strengthened into a category 2 typhoon while accelerating northwest towards western Japan. After briefly weakening back into a category 1 typhoon, Nyatoh strengthened again into a category 2 typhoon while making landfall in Kochi prefecture, Shikoku, Japan on August 6. Soon after, It then made another landfall in Hiroshima on the morning of the next day local time, as a category 1 typhoon. Nyatoh then made a final landfall near Vladivostok, Russia while completing extratropical transition on August 8. The JMA and the JTWC issued their final advisory of Nyatoh over Russia.

Nyatoh caused considerable damage along southwest Japan, with damage totalled to be US$878 million and 3 fatalities

Typhoon Rai
DESCRIPTION REMOVED Typhoon Rai remained far from land and damages were minimal in the Marshall Islands. No fatalities were attributed to this storm.

Tropical Storm Malakas
DESCRIPTION REMOVED Damages in China and Philippines were totalled at (US$15.3 million). 2 Fatalities were attributed to this storm.

Typhoon Megi
DESCRIPTION REMOVED By August 12, Megi reached typhoon status. Within a day, Megi doubled it's intensity from 65kt (120km/h, 75 mph) to 130kt (240km/h 150 mph), making it a category 4 super typhoon. by August 14, Megi strengthened into a category 5 super typhoon with one minuet sustained winds of 285km/h (180 mph) and ten minuet sustained winds of 205km/h (125mph) with a pressure of 900mb. Late on August 14, the storm made landfall on the island of Itbayat in the Philippine province of Batanes while slightly weaker but still as a category 5 super typhoon. Megi weakened after entering South China Sea due to an onset of an eyewall replacement cycle. It made landfall east of Shenzhen in Guangdong province of China, as a category 2 typhoon. The remnants of Megi moved inland and eventually reemerged in the east china sea 3 days later on August 17. The remnants regenerated into a tropical storm and accelerated northeast where it is absorbed by the remnants of Chaba over the sea of Japan.

Damage totalled from Megi were counted to be around US$2.6 billion. There were 27 total fatalities attributed to this storm.

Typhoon Chaba
On August 9, the JMA assigned another tropical depression over Micronesia, the JTWC then followed suit. The next day, both the JTWC and the JMA upgraded 23W into a tropical storm, receiving the name Chaba. High ocean heat content and low wind shear allowed Chaba to strengthen steadily while moving northwest towards the northern mariana islands, where it became a Typhoon on August 12. It then underwent a period of rapid intensification into a category 5 super typhoon on the evening of August 13 while taking on a more westerly motion. The next day, Chaba reached a peak intensity of one minuet sustained winds of 285km/h (180 mph) and a pressure of 900mb. Chaba then weakened into a category 4 super typhoon the next day before briefly reattaining category 5 intensity for the second time as the eyewall replacement cycle completed. Around this time, Chaba slowly turned more northward as it heads towards the northern Ryuku islands and Kyushu. On august 12 UTC 16, a Japanese reconnaissance drone found a ten minuet sustained winds of 195km/h (120 mph) and a dropsonde measuring a pressure of 908mb. At the same time, the JTWC upgraded Chaba to a category 5 super typhoon for the third time while it was situated 350km east of Okinawa with an eye diameter of 50nmi, making it the largest category 5 eye ever recorded after Hurricane Isabel of 2003 at 40nmi. Chaba then slowly meandered northwest towards Kyushu as a category 4 super typhoon.

On August 17, Chaba situated 150km south of Kyushu as a category 3 typhoon began to accelerate northeast and unexpectedly re-intensified into a category 4 typhoon a mere 50km southeast of Miyazaki, Kyushu. Due to the large radius of maximum winds, the entire east coast of Kyushu as well as the western portion of Kochi perfecture of Shikoku all experienced vigorous category 4 winds. The surge then funnelled north into western Honshu. A surge of 2.6m (8.5 ft) and 3.7m (12.1 ft) was measured at Hikari and Osaka. Chaba then moved east, weakening below typhoon status over passing directly over Kyoto, and absorbed the remnants of the former super typhoon Megi. Both the JMA and the JTWC issued their final advisory 300km southeast of Hokkaido while completing extratropical transition.

Throughout western Japan, Chaba brought widespread surge and damage, however luckily the surge did not overwhelm the flood drainage system over Osaka, Kobe and Himeji. However, torrential rain still brought massive landslides towards the western end of Honshu. Damages were totalled to be ¥3.8 trillion JPY (US$35 billion) and 110 fatalities.

Tropical Storm Ulana
On August 12, Ulana crossed the international date line into the western pacific basin. It then quickly accelerated northwest while under hostile conditions of dry air and high wind shear. Ulana quickly underwent extratropical transition while curving northeast, and consequently the JMA and the JTWC both issued their final warning in August 14. Ulana remained brief and far away from landmass and no damages and fatalities were attributed to the storm

Typhoon Aere
Early on August 17, the JMA and the JTWC designated a new tropical depression 300km northwest of Guam. The initial motion is northeast, until the next day in which it turned westward and strengthened into a tropical storm, receiving the name Aere. Over the next day Aere moved west while struggling to intensify due to the high 15kt - 20kt wind shear. On August 19, the shear cleared and by the end of the day, Aere quickly organised into a typhoon. Over the next few days it tracked west northwest and reached a peak intensity with 1-minuet sustained winds of 215km/h (130 mph) on August 22. The next day, Aere weakened substantially due to dry air intrusion and accelerated west. Aere eventually made landfall in south Zhejiang province of china as a category 1 typhoon on the early mornings of August 24 local time.

The remnants of Aere continued to move west while dumping torrential rain over the Yangtze river, causing severe floods lownstream. The remnants of Aere finally dissipated on the morning of August 26 where the circulation finally dissipated due to wind shear. Damage from Aere were totalled to be US$4.1 billion, mainly due to crop damage. A total of 21 fatalities were attributed to this storm.

Severe Tropical Storm Songda
On August 19, the JMA monitored a new disturbance well east of the Mariana Islands. The next day, the JTWC designated it 25W as it continued to move northwest. On August 21, the JTWC upgraded 25W into a tropical storm. The JMA followed suit hours later, giving it the name Songda. At the same time, Songda took on a more westerly motion. Initial forecast predicted Songda to move west, however Songda unexpectedly turned north as the ridge northwest suddenly strengthened. Songda then moved north and achieved it's peak intensity of 10-minuet sustained winds of 95 km/h (60 mph) and a pressure of 985mb according to the JMA. Songda then accelerated northeast and completed extratropical transition 250km southeast of Hokkaido, where the JMA and the JTWC issued their final advisory on August 26. Songda remained far from land and no damages and fatalities were attributed to this storm.

Typhoon Trases
On August 27, the JMA monitored a new tropical disturbance in western Micronesia. Over then next few days, the disturbance slowly moved west and the JTWC designated 26W. On august 27, the JMA and the JTWC upgraded 26W into a tropical storm, receiving the name Trases. Trases then turned northwest while it organized quickly into a typhoon in under 24 hours. Due to the warm sea surface temperatures and low wind shear Trases underwent explosive intensification, reaching category 5 super typhoon status with 1-min sustained winds of 260km/h (160 mph) only 24 hours after attaining typhoon status. Trases weakened back to a minimum category 4 typhoon next day on September 1 due to an eyewall replacement cycle before restrengthening back into a category 5 super typhoon on the next day. Trases then reached a peak intensity with 1-minuet sustained winds of 280km/h (175mph) whilst making landfall in Aurora, Luzon on September 3. Trases moved over the south china as a category 2 typhoon and accelerated towards Hainan island, China. It then rapidly intensified back into a category 4 super typhoon with 1-minuet sustained winds of 250km/h (155 mph) while making landfall south of Zhanjiang in Guangdong province late on September 5. The next day, Trases made another landfall on the border between China and Vietnam as a category 1 typhoon and dissipated on September 7.

Over the 3 countries affected, damages were totalled to be US$6.3 billion, mainly due to the damages in China. There were at least 296 fatalities attributed to this storm, with plenty of fatalities in Vietnam due to flash floods.

Typhoon Mulan
A tropical depression formed 300km east of Leyte on september 5. The depression slowly moved west as it organized into a tropical storm, receiving the name Mulan. Mulan then jogged north and resumed it's westward track towards Samar Islands. At the same time, Mulan has strengthened into a typhoon. Mulan then rapidly intensified and made landfall in Eastern Samar on September 7, as a category 3 typhoon with 1-minuet sustained winds of 205km/h (125 mph). soon after, Mulan reemerged back to sea as a category 1 typhoon, where it made landfall on Masbate Islands. It then wobbled northwest slowly and intensified into a category 4 typhoon, with 1-minuet sustained winds of 215km/h (130 mph) where it made landfall in Mindoro on the evening of September 8. Mulan then emerged out of the South China Sea tommorow, as a category 2 typhoon. On August 11, Mulan unexpectedly re-intensified back into a category 4 typhoon, this time with 1-minuet sustained winds of 220km/h (140 mph). It then moved west towards Vietnam and made landfall after a final burst of intensification back to a category 3 typhoon.

Due to Mulan's slow speed it brought a multitude of disasters to the Philippines, including flash floods and land slide. As a result, a total of 755 fatalities has been attributed to the storm, mostly in the Philippines. Damages were totalled to be US$889 million.

Typhoon Meari
On September 10, a tropical depression formed 500km east of Leyte. Over the next few days it meandered north, eventually reaching tropical storm status on September 11, receiving the name Meari. Meari then moved passed the Ryuku islands as a severe tropical storm tropical storm and soon intensified into a typhoon according to the JTWC. Meari brought gale winds to the coast of eastern China and western Korea as it continued to accelerate north while intensifying slowly. On the evening of September 15, Meari made landfall in western North Korea as a category 1 typhoon with 1-minuet sustained winds of 150km/h (90 mph). At the same time, the JMA also upgraded Meari to a typhoon. Meari then underwent extratropical transition as it accelerates northeast. Both the JMA and the JTWC eventually issued their final advisory on the evening of September 16 over Russia.

Damages were estimated to be around US$8 million as it is one of the strongest typhoons to have made landfall over North Korea. Meari sank a small South Korean fishing boat on September 15, and the 3 people on board are presumed dead. No fatalities were reported from the North Korean government, unsurprisingly.

Typhoon Ka-go
On the evening of September 17, the JTWC designated new tropical depression over Micronesia. The next day, the JTWC upgraded it to a tropical storm, and the JMA followed suit, hence named it Ka-go. Over the next few days, Ka-go moved northwest over the Northern Mariana Islands and intensified in a remarkable rate, reaching typhoon status by 12 UTC on September 15, and into a super typhoon the same time next day. It then peaked on September 17 as a category 5 super typhoon with 1-minuet sustained winds of 285km/h (180 mph) and a pressure of 900mb. On the next day, Ka-go underwent an eyewall replacement cycle and weakened back to a category 4 super typhoon while slowing down substantially. Ka-go slowly drifted west as a category 4 super typhoon until September 20 where it underwent another stunning eyewall replacement cycle, this time emerging with a eye 210nmi, making it the the second largest eye ever recorded, just shy under super typhoon Winnie of 1997 and typhoon Carmen of 1960. Ka-go then weakened down to category 2 status whilst having massive size as it passed the Ryuku islands on September 22. It accelerated northwest and made landfall in norther Zhejiang on the next day, causing massive storm surge in Hangzhou bay similar to Orca two months ago, which hindered the recovery.

Throughout China and the Ryuku islands, damages were totalled to be US$3 billion. There were 40 fatalities attributed to this storm

Typhoon Kurimori
On september 29, the JTWC upgraded an broad area of circulation north of Micronesia, designating it 30W as it drifts northwest. The JMA then followed suit. On September 30, a sudden burst of convection allowed large and broad tropical depression 30W briefly strengthened into a tropical storm according to the JTWC, before weakening again. 30W then soon reattained its tropical storm strength early on October 1, this time on board with the JMA, which assigned it the name Kurimori. It then changed direction to move due west and intensified gradually. Late on October 2, Kurimori strengthened into a typhoon according to both the JTWC and the JMA. Over the next day, Kurimori underwent explosive intensification due to low winds shear, high ocean heat content and moist air. Just 18 hours later after it became a typhoon, Kurimori reached category 5 super typhoon status with winds of 285km/h (180 mph) with a pressure of 905mb and a pinhole eye measuring only 3.5nmi across. Shortly after on 1530 UTC October 3, an AF304 military aircraft transferred to the JTWC measured unflagged SFMR reading of 169kt in the northern eyewall of the storm and a flight level wind of 184kt. There was also a dropsonde reading of 881mb. Such low pressure measured from dropsonde is only comparable to hurricane Patricia of 2015, as well as typhoons from the early satellite era. At 18 UTC, the JTWC upgraded Kurimori to an intensity of 295km/h (185 mph) as the satellite presentations continued to improve since the last reconnaissance. The next morning, Kurimori weakened back to a category 4 super typhoon due to an eyewall replacement cycle, reemerging with a larger eye. Kuriori soon intensified back into a low end category 5 super typhoon as it accelerates towards Japan.

On October 7, Kurimori made landfall on Izu peninsula of Shizuoka prefecture as a high end category 2 typhoon. It then made another landfall over the coast of Sagami bay and moved over metropolitan Yokohama and Tokyo as a category 1 typhoon. It then moved out to sea east of Japan and dissipated on October 9. Across Japan and the Northern Mariana Islands, damages were totalled to be US$7 billion. A total of 110 fatalities were attributed to this storm.

Tropical Storm Hinnamnor
On September 22, the remnants of Hurricane Olaf crossed into the western pacific ocean with an elongated circulation. The circulation slowly drifted northwest until it regenerated well southeast of Japan on September 30, where it became a tropical depression by the JTWC and the JMA. Soon after attaining tropical storm intensity, Hinnamnor accelerated east with barely any convection left and an naked circulation. It dissipated rapidly under increasing wind shear on October 2.

===Typhoon Mika===

Storm names
Within the Northwest Pacific Ocean, the Japan Meteorological Agency (JMA) assign names to tropical cyclones that develop in the Western Pacific. The Japan Meteorological Agency's RSMC Tokyo – Typhoon Center assigns international names to tropical cyclones on behalf of the World Meteorological Organization's Typhoon Committee, should they be judged to have 10-minute sustained windspeeds of 65 km/h (40 mph). The names of significant tropical cyclones are retired by the Typhoon Committee.

International names
During the season 37 tropical storms developed in the Western Pacific and each one was named by the JMA, when the system was judged to have 10-minute sustained windspeeds of 65 km/h (40 mph). The JMA selected the names from a list of 140 names, that had been developed by the 14 members nations and territories of the ESCAP/WMO Typhoon Committee. During the season, the names Alina, Sarmi, Waltz, Orca, Ka-go, Kurimori, Mika, and Nonna were used for the first time, after they replaced the names Cempaka, Mirinae, Omais, Malou, Ma-on, Tokage, Muifa, and Merbok which were all retired after the 2021 and 2022 seasons respectively.

After the season the Typhoon Committee retired the names Champi, In-fa, Orca, Megi, Trases, Mulan, Ka-go, Mika, Nonna, Roke, and Sonca from the naming lists. In 2028, they were replaced with Chi-ha, Giovanni, Donmai, Kasong, Kay, Aluka, Ton-minh, Izumi, Lili, Yoshi, Kanoe, and Convoi, respectively.

Hypo Constraints
This hypo is created on Paintbrush on a mac, therefore extratropical and subtropical icons are unavailable. This is dealt by partially removing tracks for the storms extratropical transition phase. The extratropical transitional phases that can not be removed due to the removal of too much information will still have tropical icons instead of extratropical or subtropical icons, even though in reality they might already long be extratropical. The same goes with Invests. Due to tracks being drawn, there will not be PAGASA due to the unclear boundaries of their AOR. The same goes with systems entering the basin from the central pacific, as there are decreased amounts of basin crosses compared to usual. This does not apply for WPac - BoB basin crosses as the basin boundaries are marked by land. In addition, Due to the lack of photoshop, Pictures of the storms are pictures of real systems in real locations historically, Instead of the standard hypo procedure of taking a real system and photoshopping it onto desired places. This limits the possibility of hypos as any exotic hypos without historical analogues would be deemed not possible. Therefore, storms without sufficient historical analogues will have to use use satellite photos that does not show distinct land boundaries, making it available for any location. However, This would still mean that the quality of their photos will be low unclear.

Image Sources
This section is temporary and will be deleted when the image names are hopefully changed..

Champi - Bopha_26w_Dec_3_2012.jpg

In-fa - lossy-page1-389px-20171221_1200Z_HIMAWARI8_ir_33W.tif.jpg

Alina - Source already used

04W - 800px-Kirogi_2017-11-19_0340Z.jpg

Nepartak - 450px-Sanba_2018-02-12_0510Z.jpg

Lupit - Muifa_2017-04-26_0410Z.jpg

Sarmi - 800px-Kong-rey_2007-04-03_0350Z.jpg

Nida - Noul_2015-05-10_0630Z.png

Waltz - Source already used

Conson - 800px-Merbok_2017-06-12_0506Z.jpg

Chanthu - 800px-Talas_2017-07-16_0330Z.jpg

Dianmu - 800px-Nesat_2017-07-29_0900Z.png

Mindulle - Source Already used

Fourteen - 800px-JMA_TD_33_2018-09-26_0255Z.jpg

Lionrock - Source already used

Kompasu - 800px-JMA_TD_11_2018-07-16_0525Z.jpg

Guillermo - No source

Namtheum - 800px-Gaemi_2018-06-16_0415Z.jpg

Orca - No source

Nyatoh - Source already used

Rai - 800px-Banyan_2017-08-12_1512Z.jpg

Malakas - 800px-Barijat_2018-09-11_0600Z.jpg

Megi - Meranti_2016-09-12_0530Z.png

Chaba - No source

Ulana - Source already used

Aere - 800px-Maria_2018-07-10_0505Z.jpg

Songda - Lupit_2016-07-24_0245Z.jpg

Trases - Angela_3_November_1995.jpg

Mulan - Fengshen_2008-06-21_0230Z.png

Meari - 800px-Lingling_2019-09-07_0240Z.jpg

Ka-go - No source

Kurimori - 800px-Chaba_2004-08-23_1605Z.jpg

Hinnamnor - 800px-Yutu_Sep_02_2013_0120Z.jpg

Mika - No source

Nonna - Haiyan_2013-11-07_2157Z.png

Nanmadol - 800px-Kalmaegi_2019-11-16_0210Z.jpg

Talas - 800px-Pabuk_Jan_4_2019.png

Noru - Typhoon_Yuri_26_Nov_1991_2124z.png

Kulap - 800px-Usagi_2018-11-23_0550Z.jpg

Roke - 800px-Kai-tak_2017-12-16_0500Z.jpg

Sonca - 800px-Haiyan_2013-11-07_0420Z.jpg

Images with no sources are not from wikipedia, or at least, have no original name. They are Guillermo, Orca, Chaba, Kago, and Mika. However, there are still pictures of real storms. They are Ioke 2006, Saomai 2006, Jebi 2018, Winnie 1997, and Meli 1979 (flipped0.