The 2024-25 Roambatoane hurricane season is an ongoing hurricane season. The season officially began on October 16, 2024 and will end on April 26, 2025, though the first storm, Avatama, formed on October 20. According to the Teelmondo Tropical Surveillance System (TTSS), the ongoing 2023-24 Oceanic Subsurface Temperature Anomaly (OSTA) and a relative lack of strong low-level wind shear will contribute to "what could be the most active season since 1993-94". The season has been defined by an aggressive start; Hurricane Calron devastated Vaerhubo, becoming the costliest and deadliest tropical cyclone in Vaerhuban history, while Hurricanes Flaas and Hoama intensified into the first and second Category 5 hurricane in the month of November on record, respectively. In particular, Flaas became the fifth-most intense tropical cyclone in the basin on record. Additionally, this season became the first season on record to feature more than 2 storms of at least Category 4 intensity before December, as well as the first season on record to see more than 1 Type 5 Tropical System in the same time frame, as Calron, Flaas, and Hoama all achieved this intensity.
Seasonal forecasts[]
Source | Date | Named storms | Hurricanes | Major hurricanes | Refs |
Average | 20.8 | 12.2 | 6.2 | [Note 1] | |
Record high activity | 34 | 20 | 14 | ||
Record low activity | 11 | 5 | 1 | ||
TTSS | October 10, 2024 | 24-27 | 15-18 | 9-13 | |
CWCB | October 15, 2024 | 20-24 | 11-14 | 7-10 | |
CWCB | November 4, 2024 | 21-24 | 12-15 | 7-10 | |
TTSS | November 11, 2024 | 23-27 | 17-20 | 10-13 | |
STWC | November 22, 2024 | 23-30 | 12-17 | 8-12 | |
SHC | November 23, 2024 | 19 | N/A | N/A | |
AOTSS | November 24, 2024 | 22-25 | 13-16 | 6-9 | |
CHC | November 26, 2024 | 26-32 | 12-16 | 6-8 | |
TTSS | November 26, 2024 | 24-27 | 17-20 | 10-14 | |
TACO | November 30, 2024 | 13 | 7 | 4 | |
AOTSS | November 30, 2024 | 22-25 | 13-16 | 6-9 | |
DTCHTC | November 30, 2024 | 25 | 10 | 5 | |
TACO | December 4, 2024 | 19 | 15 | 6 | |
SHC | December 7, 2024 | 20 | 14 | 8 | |
Actual activity | 9 | 5 | 3 | [Note 2] |
Each season, various weather prediction centres issue their forecasts concerning the season's activity. The first forecast was issued by the Teelmondo Tropical Surveillance System (TTSS) on October 10, 2024 and predicted a hyperactive season with 24-27 named storms, 15-18 hurricanes, and 9-13 major hurricanes. They cited, among other factors, the ongoing 2023-24 Oceanic Subsurface Temperature Anomaly (OSTA), which increases ocean surface temperatures in the Roambatoane Ocean and stifles the development of oceanic wind shear, as contributing to what will likely be "the most active season in many years, possibly decades". On October 15, the CW Cyclone Bureau (CWCB) released their first prediction for the season, calling for an above-average season with 20-24 named storms, 11-14 hurricanes, and 7-10 major hurricanes. The CWCB updated their forecasts on November 4, increasing the number of named storms and hurricanes to reflect the active start to the season. On November 11, the TTSS issued updated predictions, calling for 23-27 named storms, 17-20 hurricanes, and 10-13 major hurricanes. On November 22, the Soilaf Tropical Warning Center (STWC) predicted a potentially near-record season with 23-30 named storms, 12-17 hurricanes, and 8-12 major hurricanes. A day later, the Spikikonian Hurricane Center (SHC) predicted that 19 named storms would form during the season. The Archaeian Ocean Tropical Surveillance System (AOTSS) issued their outlook on November 24, foreseeing an active season with 22-25 named storms, 13-16 hurricanes, and 6-9 major hurricanes. Furthermore, the AOTSS predicted additional impacts across Sotoray, Vaerhubo, and Malrom Island, as well as at least 1 additional Category 5 hurricane, possibly approaching Flaas in strength. The Catalanotto Hurricane Center (CHC) issued their forecast on November 26, calling for a hyperactive season with 26-32 named storms, 12-16 hurricanes, and 6-8 major hurricanes. They predicted that the season would also witness 3-4 additional Category 5 hurricanes, as well as a rare landfall in Teelmondo. The same day, the TTSS updated their predictions slightly, calling for slightly more major hurricanes due to the aggressive pace of activity. November 30 saw the issuance of 3 predictions; The Aviation Control Optimizer (TACO) unexpectedly called for an extremely quiet season with just 13 named storms, 7 hurricanes, and 4 major hurricanes, while the AOTSS reiterated their previous prediction of 22-25 named storms, 13-16 hurricanes, and 6-9 majors. Finally, the DTC Hurricane Tracking Center (DTCHTC) predicted an unusual season with 25 named storms, 10 hurricanes, and 5 major hurricanes, the latter two being below-average. TACO updated its forecasts significantly on December 4, now predicting a near-normal season with 19 named storms, 15 hurricanes, and 6 major hurricanes. Following 3 days later, the SHC updated their predictions, now calling for an overall active year producing 20 named storms, 14 hurricanes, and 8 major hurricanes.
Current activity[]
Seasonal summary[]
Costliest Roambatoane hurricane seasons | |||||
---|---|---|---|---|---|
Rank | Season | Damage | Refs | ||
1 | 2000-01 | $272.88 billion | |||
2 | 2015-16 | $255 billion | |||
3 | 2016-17 | $173.19 billion | |||
4 | 2023-24 | $158.302 billion | |||
5 | 2013-14 | ≥$144.47 billion | |||
6 | 1987-88 | $125 billion | |||
7 | 2024-25 | >$116.93 billion | |||
8 | 1991-92 | $115 billion | |||
9 | 1997-98 | >$114.2 billion | |||
10 | 2010-11 | $96.03 billion |
The 2024-25 Roambatoane hurricane season officially began on October 16, 2024. However, Hurricane Avatama, the season's first system, did not materialize until 4 days later. It slowly intensified and then hit Malrom Island on October 23. A day later, Tropical Storm Buar formed. Buar struggled with environmental inhibitions, which resulted in the storm remaining weak and disorganized its entire life. As Buar was degenerating into a remnant low, Hurricane Calron formed on October 27 and quickly intensified thereafter, reaching Type 5 Tropical System intensity late on October 30. The storm then weakened before making landfall in Vaerhubo on November 1 and stalling for the next couple days. The same day that Calron made landfall marked the formation of short-lived Tropical Storm Delain. Delain quickly moved eastward before making landfall in Oorvelm early on November 3. The system dissipated a day later. After a momentary halt in activity, Hurricane Eleni formed. Slowly strengthening, Eleni became a hurricane on November 11 as it sped to the northeast. Two days later, Tropical Storm Flaas formed and explosively intensified into a Category 5 hurricane on November 15, before further strengthening into the strongest system in the basin in over 10 years early the next day. Less than a day after Flaas formed, Area of Convection 1A developed into Tropical Depression 07, but failed to intensify beyond that before dissipating on November 18. After more than a week with no tropical cyclogenesis, Tropical Storm Geu formed on November 22, bringing heavy rainfall to Vaerhubo, Malrom Island, and the island of Sasastalu-Cleelai. Tropical Storm Hoama formed on November 25 and began intensifying south of Sotoray, becoming a Category 5 hurricane on November 29. Hoama then made landfall in Malrom Island on December 1, followed by another, much weaker, landfall in Sasastalu the next day. A short break in tropical cyclone activity was ended when Tropical Storm Ivindi formed on December 6.
Systems[]
Hurricane Avatama[]
Type 1 Tropical System (TTSS) Category 1 hurricane (SSHWS) Duration October 20 – October 26 Peak intensity 75 mph (120 km/h) (1-min)
991 mbar (hPa)
On October 13, the Teelmondo Tropical Surveillance System (TTSS) began monitoring a developing tropical system located far southeast of Malrom Island. Radar scans indicated that the system was consolidating on October 19, with a weak band of convection developing around a poorly-defined core. At 21:00 UTC that day, the TTSS designated the system 1x. At 12:00 UTC on October 20, storm data collection flights found winds of 40 mph, and 1x was upgraded to Tropical Storm Avatama an hour later. Based on pressure reading during that flight that suggested a minimum pressure of 1007 mbar, Avatama was upgraded to a Type 1 Tropical System at the same time. As Avatama continued tracking generally west-northwest, the system's circulation slowly became better organized. At 14:00 UTC on October 21, the TTSS issued Tropical Storm Watches and Warnings for the southwest coast of Malrom Island, as well as a Tropical Storm Watch for the entire coast of Simabo. Throughout the afternoon hours of October 21, the TTSS closely monitored Avatama, noting that minor consolidation of the storm's convection had occurred and therefore the storm had slightly intensified. At 18:00 UTC, the TTSS reminded residents of southwestern Malrom Island that regardless of whether the storm made landfall or not, Avatama would likely pass close enough to the shore to produce locally heavy rainfall across the region. By 00:00 UTC the next day, Avatama's wind speed had risen to 50 mph while its pressure had fallen to 10:00 mbar. As the storm showed no signs of weakening, the TTSS extended the Tropical Storm Warnings on Malrom Island east to Zaracook Inlet. A Tropical Storm Watch was also issued for southern portions of coastal Brimphola at the same time. At 00:00 UTC on October 23, Avatama reached peak intensity with winds of 75 mph, though operationally it was thought to have been slightly weaker. Land interaction caused the storm to quickly fall to 60 mph just 6 hours later. At 16:30 UTC, Avatama made landfall at that intensity near East Waysand Beach, Malrom Island. After landfall, Avatama weakened as its circulation was severely disrupted and it fell below tropical storm strength on October 25 while approximately halfway between Malrom Island and Brimphola. Avatama became post-tropical on October 26 as its circulation degenerated, though the TTSS continued monitoring the system until it was absorbed by a larger cold front the next day.
Prior to landfall, heavy rain from Avatama's rainbands caused flooding across southern Malrom Island. A section of the E52 in Toomalav flooded, forcing the temporary closure of the expressway to all traffic. Toomalav International Airport also saw flooding on the tarmac, causing flight delays and cancellations. Strong winds downed trees and power lines throughout the city of Sebasunc, causing 45 percent of the city to lose power and one person to be electrocuted. Several households were inundated by floodwaters that sparked at least 5 major electrical fires, including one that killed an elderly man. 4 people died after their house was swept away by floodwaters in Klizmakoo. Heavy rainfall resulted in destructive floods in Turony; at least 100 structures in the town were severely damaged, and 15 people drowned after the Turony River burst its banks. 4 people were killed by intense rip currents in East Waysand Beach, while 30 others were rescued. Offshore, a fishing vessel with 6 people onboard capsized on October 23. 3 of the crew were rescued a week later, while the other 3 were confirmed dead. Avatama wrought $1.05 billion (2024 USD) in damages to Malrom Island, while a total of 29 people were killed.
Tropical Storm Buar[]
Type 1 Tropical System (TTSS) | |
---|---|
Tropical Storm (SSHWS) | |
Duration | October 24 – October 28 |
Peak intensity | 40 mph (65 km/h) (1-min) 1005 mbar (hPa) |
On October 23, the TTSS noted a disorganized area of convective thunderstorms developing off the coast of Oorvelm. The system became better defined and was upgraded to Tropical Depression 02 at 19:00 UTC on October 24. The next day at 17:00 UTC, 02 was found to have attained sustained winds of 40 mph, as well as a distinct circulation, though one that was displaced to the northeast of the center. Therefore, the system was immediately named Buar. At that time, Buar's lowest pressure, as indicated by satellite and radar imagery, was estimated at 1006 mbar, resulting in Buar being designated a Type 1 Tropical System. Buar consistently struggled with unfavourable conditions, resulting in the storm becoming heavily sheared and poorly-organized. By 14:00 UTC on October 27, the TTSS noted that Buar had begun weakening as wind shear and cool sea surface temperatures started taking their toll on the storm's convection. Buar weakened below tropical storm strength at 18:00 UTC, though the now ragged and disorganized system still exhibited weak convection 24 hours later. That convection quickly fizzled out, however, and Buar degenerated into a remnant low at 20:00 UTC on October 28.
Hurricane Calron[]
- See also: Effects of Hurricane Calron in Vaerhubo
Type 5 Tropical System (TTSS) | |
---|---|
Category 4 major hurricane (SSHWS) | |
Duration | October 27 – November 4 |
Peak intensity | 145 mph (230 km/h) (1-min) 921 mbar (hPa) |
At 18:00 UTC on October 27, the TTSS issued a Special Tropical Cyclone Development Advisory (STCDA) for a highly reactive convective system located far from land, designated 1x. Just 2 hours later, 1x had developed a well-defined circulation and robust thunderstorm activity near its center, resulting in the storm being upgraded to Tropical Depression 03 by the TTSS. At this time, the TTSS issued the first High-Risk Tropical Cyclone Warning (HRTCW) since 2020, when they issued one for Hurricane Glenalio. At 23:00 UTC, 03 strengthened into Tropical Storm Calron. The storm then began rapidly intensifying as it entered a favourable environment, becoming the first hurricane of the season at 13:00 UTC on October 28. At this time, the storm maintained a robust structure with well-organized convection and began developing an eye. Calron intensified to a Type 2 Tropical System at 16:00 UTC, followed by a Category 2 storm at 00:00 UTC the next day, then a Type 3 Tropical System 12 hours later. As the storm's convection tightened around its core, its eye became large but remained ragged. A Hurricane Emergency was issued for regions of Vaerhubo and Sotoray at 22:00 UTC as Calron's winds increased to 125 mph. Late on October 30, Calron reached peak intensity with winds of 145 mph (230 km/h) and a minimum central pressure of 921 mbar. At this point, the upper-level steering current that was causing Calron to accelerate northwest suddenly degenerated, resulting in some uncertainty as to where the storm would track next. At 12:00 UTC the next day, Calron began weakening as an eyewall replacement cycle initiated. Due to a lack of prominent steering currents in the area, Calron's forward movement speed began to fall on November 1, and the storm made landfall near Clearwater Bayou at 18:00 UTC that day as a high-end Category 2 hurricane. Thereafter, the storm stalled in the vicinity of eastern Vaerhubo for over a day while dropping torrential rainfall. Land interaction and dry air penetration rapidly disrupted Calron's circulation, resulting in the system dropping below hurricane status by 20:00 UTC on November 2. By 12:00 UTC the next day, Calron dropped to tropical depression status due to rapid degeneration of its circulation. The TTSS issued their final advisory for Calron late on November 4 as it was, operationally, considered to have been absorbed by a nearby frontal low. The remnants of Calron were found to have still been active on November 6, but were quickly absorbed by the frontal low later that day,
Tropical storm-force winds began affecting parts of Vaerhubo late on October 31, followed by hurricane-force winds the next day. A wind gust of 137 mph was recorded in Clearwater Bayou late on November 1 as Calron was making landfall. Impacts across Vaerhubo were catastrophic; at least 2,601 people have died while more than 630 remain unaccounted for. Widespread historic flooding occurred throughout Vaerhubo, most notably in Clearwater Bayou, Murray Beach, Massanami Beach, Masswood, Templeton, and Denfield Hill. Economic losses are estimated to be more than $111.149 billion (2024 USD). Malrom Island also received flooding rainfall that led to 11 fatalities and destroyed hundreds of homes and businesses. More than 2,000 hectares of crops, equalling approximately 30% of the country's annual harvest, were ruined. Damages in Malrom Island reached at least $481 million (2024 USD). An additional fatality in Sotoray was reported after a person was killed by a falling tree.
Tropical Storm Delain[]
Type 1 Tropical System (TTSS) | |
---|---|
Tropical Storm (SSHWS) | |
Duration | November 1 – November 4 |
Peak intensity | 40 mph (65 km/h) (1-min) 999 mbar (hPa) |
A tropical wave originating from the Southeast Gyre on October 26 began showing signs of development 3 days later and the TTSS began tracking it as 1x. Initial organization of the large system's thunderstorm activity was limited, though by October 31 the TTSS noted that the system had developed a warm core and increased convection. The next day, it was upgraded to Tropical Depression 04. Early forecasts showed no additional development for 04 as it was located in an unfavourable environment with moderate wind shear and cool sea surface temperatures left over from Tropical Storm Buar several days prior. However, the large size of 04 allowed it to intensify despite the unfavourable conditions, and it intensified into a tropical storm on November 2. Upon 04 reaching tropical storm status, the TTSS issued Tropical Storm Warnings for Oorvelm and Sembung on short notice. For the next 12 hours, Delain experienced no change in wind speed but saw its pressure drop from 1004 mbar to 999 mbar and its trajectory curve to the north. At 00:00 UTC on November 3, the storm made landfall at peak intensity near Laz Dlem, Oorvelm and began weakening thereafter. Delain weakened to a remnant low on November 4, at which point the TTSS ceased tracking the system.
The large size of Delain at landfall caused a large portion of the continent of Ekai to experience rainfall. Modest street flooding was reported in Limov, Oorvelm and Doonsy, Wazgol. Locally gusty winds cut power to about 10,000 customers across Sembung. Overall damage was minor, and no casualties were reported.
Hurricane Eleni[]
Type 2 Tropical System (TTSS) Category 1 hurricane (SSHWS) Duration November 7 – November 15 Peak intensity 80 mph (130 km/h) (1-min)
978 mbar (hPa)
Rigorous convection was noted in an area of low pressure on November 7. The TTSS began tracking the system as Hurricane Hunter flights reported developing outflow and favourable conditions for intensification. At 18:00 UTC that day, the TTSS began issuing advisories on Tropical Depression 05 after the system began displaying a warm core. Early on November 9, the system strengthened into a tropical storm and was given the name Eleni. Traversing a relatively favourable environment with warm ocean temperatures, modest vertical wind shear, and minimal dry air, Eleni steadily intensified over the next day, becoming better organized and more condensed. By 12:00 UTC on November 11, Hurricane Hunter flights found sustained winds of 76 mph in Eleni's well-defined inner circulation, and the storm was promptly upgraded to Category 1 intensity. At 02:00 UTC the next day, Eleni reached peak intensity with winds of 80 mph and a minimum barometric pressure of 978 mbar. Soon thereafter, a trough began pushing Eleni northward. The hurricane entered unfavourable conditions and began weakening at approximately 12:00 UTC, and the TTSS downgraded Eleni to a tropical storm 7 hours later. Early on November 14, Eleni made its closest approach to Brimphola before pulling away. Thereafter, weakening upper-level steering currents caused Eleni to start moving erratically. Further weakening resulted in Eleni weakening to a tropical depression at 12:00 UTC on November 14. Immediately thereafter, the system initiated a nearly 180-degree curve to the southwest as it began transitioning into an extratropical cyclone, which it completed at 19:00 UTC the next day. The extratropical remnants of Eleni persisted until November 17, whereupon it opened up into a trough.
Passing just offshore, Eleni brought gusty winds and moderate rainfall to Simabo, Brimphola, and Malrom Island. Street flooding and power outages were reported in a few cities in southeastern Brimphola and western Malrom Island, while a rare EF1 tornado damaged 2 farmhouses near Wathuma. No fatalities occurred due to Eleni, though 4 people were injured by flying debris in Duwara. The TTSS reported that parts of Malrom Island that were still recovering from Avatama less than a month prior "dodged a bullet" by being missed by the heaviest rainfall, thereby avoiding further flooding. Total damages from Eleni are estimated to be around $25 million (2024 USD).
Hurricane Flaas[]
Type 5 Tropical System (TTSS) Category 5 major hurricane (SSHWS) Duration November 13 – November 27 Peak intensity 185 mph (295 km/h) (1-min)
889 mbar (hPa)
A tropical wave developed into Potential Tropical Cyclone 2A on November 13. At 12:00 UTC, the system was found to have transitioned into Tropical Storm Flaas while located far southeast of Jacksonville, Sotoray. Despite traversing through a cold wake left by Hurricane Eleni just a few days prior, Flaas continued intensifying throughout the day. Late that day, Flaas began rapidly deepening due to the onset of a Tropical Development Event (TDE), becoming a hurricane at 00:00 UTC on November 14. Travelling slowly to the west, Flaas' convection rapidly developed large, potent rainbands and a large eye began to form. As the system quickly organized and condensed, explosive intensification began at 22:00 UTC, after which TTSS Hurricane Hunters found that Flaas had strengthened from Category 2 to Category 4 intensity in 3 hours. While this explosive rate of intensification was short-lived, Flaas continued to intensify throughout the morning hours of November 15, as noted by a TTSS Hurricane Hunters surveillance flight that found 1-minute sustained winds of 155 mph in Flaas' eastern eyewall at 12:00 UTC that day. Just 7 hours later, Flaas's 1-minute sustained winds had increased to 175 mph, therefore making it a Category 5 hurricane. At 03:00 UTC on November 16, Flaas reached peak intensity with winds of 185 mph and a minimum pressure of 889 mbar, making it the strongest tropical cyclone in the basin in over 10 years. Soon after, however, the onset of an eyewall replacement cycle caused the storm to weaken to a Category 4 storm at 20:00 UTC. The storm's forward movement speed fell to just 5 mph on November 17 as a nearby frontal low inhibited local steering currents, causing upwelling that, along with the ongoing Eyewall Replacement Cycle, quickly degraded Flaas' convective field. A TTSS Hurricane Hunter flight into Flaas at 10:00 UTC found the hurricane's eye clouding over and confirmed that the new eyewall was almost completely formed. Due to instruments measuring maximum 1-minute sustained winds of 125 mph at that time, Flaas was downgraded to a Category 3 hurricane. The next day at 00:00 UTC, Flaas weakened below major hurricane intensity as its Eyewall Replacement Cycle was completed.[1] Soon after, the hurricane began turning to the southwest and accelerating due to the influence of a nearby trough. Radar scans indicated that the system had ceased weakening around 02:00 UTC; its 1-minute sustained winds had fallen to 105 mph, while its minimum central pressure had risen to 971 mbar. The storm began reintensifying just hours later and reattained major hurricane status at 14:00 UTC.[2] At 13:00 UTC on November 20, Flaas reached a secondary peak intensity as a Category 4 storm with winds of 145 mph (230 km/h) and a minimum pressure of 935 mbar (hPa). At this time, the hurricane's movement had also begun taking a more westerly course that brought it into less favourable conditions. The storm started weakening again at 18:00 UTC due to moderate vertical wind shear, cool sea surface temperatures of only 24-27 degrees Celsius, and the onset of a second Eyewall Replacement Cycle, the latter of which was confirmed by TTSS weather satellites that observed a second eyewall developing.[3] By 20:00 UTC on November 21, Flaas weakened below major hurricane intensity. The system further weakened to tropical storm intensity 24 hours later, and passed just off the coasts of Oorvelm and Sembung on November 24. Very early the next day, Flaas made landfall near Sumbrayol, Sireyalo Major as a minimal tropical storm. As the system pulled away from the Sireyalo Islands late on November 25, satellite data indicated unexpected bursts of convection in Flaas' northeastern quadrant, and Hurricane Hunter flights found 1-minute sustained winds of 65 mph the next day at 01:00 UTC. This second bout of reintensification, and Flaas' long-lived and powerful nature as a whole, caused the TTSS to dub it "the Immortal Gale", a term that began circulating widely online. Becoming a Category 1 hurricane at 12:00 UTC, Flaas made landfall 3 hours later near Simaphola, Brimphola with 1-minute sustained winds of 85 mph. Inland, the system began rapidly weakening over the mountainous Brimpholan terrain; by 12:00 on November 27, Flaas had weakened to a tropical depression over central Brimphola. 6 hours later, Flaas degenerated into a remnant low while situated over southern Nobora.
Rough surf began affecting parts of the Oorvelmish coast late on November 22, resulting in several reports of coastal erosion. Hurricane Flaas caused damaging flash flooding in Oorvelm, Sembung, Wazgol, the Sireyalo Islands, Teelmondo, Simabo, and Brimphola, with economic losses from the storm estimated to be at least $3.8 billion (2024 USD). The large size of Flaas' wind field on November 24 resulted in sustained tropical storm-force winds being recorded in Teelmondo for the first time since 2002. As of 12:00 UTC on December 4, 137 fatalities have been attributed to Flaas: 1 in Vaerhubo due to rip currents, 30 in Oorvelm, 10 in Sembung, 4 in Wazgol, 62 in the Sireyalo Islands, 1 in Teelmondo, 2 in Simabo, and 27 in Brimphola.
Tropical Depression 07[]
Type 1 Tropical System (TTSS) | |
---|---|
Tropical Depression (SSHWS) | |
Duration | November 14 – November 18 |
Peak intensity | 35 mph (55 km/h) (1-min) 1008 mbar (hPa) |
A tropical wave originating far out to sea on November 10 tracked westward over the next several days before showing signs of gradual development. The TTSS began monitoring the system for tropical cyclogenesis at 04:00 UTC on November 14. After remote data collecting modules dropped into the system found evidence of a developing warm core, the TTSS designated the system Tropical Depression 07 at 11:00 UTC. Further development was minimal, however, due to dry air wearing at the system's convection. At 23:00 UTC, 07's pressure bottomed out at 1008 mbar. Increasingly hostile conditions started slowly weakening 07 on November 15 as it slowly tracked towards Oorvelm. A high-pressure system situated over southern Oorvelm resulted in 07 beginning to accelerate westward on November 16, then abruptly curve to the north early on November 18 as the system weakened into a remnant low. At that point, the TTSS issued its last advisory on the system.[4]
Tropical Storm Geu[]
Type 1 Tropical System (TTSS) Tropical Storm (SSHWS) Duration November 22 – November 25 Peak intensity 45 mph (75 km/h) (1-min)
1001 mbar (hPa)
An Area of Convection located near Vaerhubo developed into Potential Tropical Cyclone 5A late on November 22. At 00:00 UTC on November 23, 5A developed tropical characteristics and was designated Tropical Depression 08 by the TTSS. By 12:00 UTC, 08 had strengthened into Tropical Storm Geu while located north of Final Point, Malrom Island. A subtropical ridge to the south caused Geu to turn north on November 24. Amid increasingly hostile conditions, Geu transitioned into an extratropical cyclone at 12:00 UTC on November 25.
As Area of Convection 5A, Geu brought heavy rainfall to areas of Vaerhubo still recovering from Calron less than a month prior. Flash flooding was reported in Massanami Beach and Tonnagor, while over 1,000 people lost power in Clearwater Bayou. 4 people perished in Vaerhubo.
Hurricane Hoama[]
Type 5 Tropical System (TTSS) Category 5 major hurricane (SSHWS) Duration November 25 – December 3 Peak intensity 175 mph (280 km/h) (1-min)
915 mbar (hPa)
A tropical depression formed far south of Sotoray on November 25. The TTSS noted favourable atmospheric conditions and predicted significant intensification. While the depression, designated as 09 by the TTSS, initially struggled to organize, it reached tropical storm status at 11:00 UTC on November 26 and was given the name Hoama. Thereafter, the system turned due west and began intensifying at a quicker pace, becoming a hurricane early the next day. Around this time, Hoama turned slightly to the north due to a frontal ridge to its south. As the system tracked to the northwest throughout November 28, conditions became significantly more conductive for development, and Hoama initiated a period of rapid intensification at 17:00 UTC. Two hours later, it attained major hurricane status as convection tightened around a developing eye. Continuing to rapidly intensify, Hoama reached Category 5 intensity at 16:00 UTC on November 29, becoming the second-strongest tropical cyclone in the basin in the month of November in terms of 1-minute sustained winds, only behind Flaas. As Hoama turned more to the north, the storm's circulation grew to 690 miles in diameter; one TTSS forecaster mentioned that it was "probably the most massive system in years". At 13:00 UTC on December 1, Hoama made landfall near Toomalav Beach, Malrom Island with 1-minute sustained winds of 175 mph and a minimum central pressure of 919 mbar. Thereafter, the storm rapidly weakened, dropping to Category 1 status by 00:00 UTC on December 2. Late on December 2, Hoama made a second landfall near Renabyem, Sasastalu as a minimal tropical storm. By 10:00 UTC the next day, it became post-tropical over northern Sasastalu. Very shortly thereafter, Hoama was absorbed by a large extratropical low just off the coast of Cleelai.
As an extremely powerful hurricane, Hoama brought widespread impacts to Malrom Island throughout December 1. 95 fatalities have been confirmed in the country as of 12:00 UTC on December 7. Significantly more limited effects occurred in Sasastalu and Cleelai, though Hoama did produce a storm surge in Arybuche, Sasastalu that damaged 14 beachfront properties and contributed to ongoing coastal erosion started by Tropical Storm Geu in late November. Additionally, a person in Cleelai was killed by rip currents.
Tropical Storm Ivindi[]
Type 2 Tropical System (TTSS) | |
---|---|
Tropical Storm (SSHWS) | |
Duration | December 6 – Currently active |
Peak intensity | 65 mph (100 km/h) (1-min) 983 mbar (hPa) |
An Area of Convection, designated 6A by the TTSS, was spawned by the Southeast Gyre late on December 5 and quickly began organizing, resulting in the TTSS declaring it a potential tropical cyclone at 00:00 UTC on December 6. 12 hours later, the southwestward-traveling system transitioned into a tropical depression as it experienced moderately favourable atmospheric conditions. Early the next day, it further strengthened into a tropical storm and was named Ivindi by the TTSS. This was quickly followed by an abrupt turn to the north due to Ivindi interacting with the Southeast Gyre's outer air circulation. On December 9, Ivindi reached peak intensity with 1-minute sustained winds of 65 mph and a minimum central pressure of 983 mbar, equivalent to a Type 2 Tropical System. The system turned to the northeast throughout December 10 while slowly weakening.
Storm names[]
In this basin, storms are given a name if they are determined to have 1-minute sustained winds of at least 40 mph (65 km/h). As opposed to previous seasons where names are retired during the post-season analysis, the TTSS has announced that, starting this season, it will retire the names of especially destructive or deadly storms as soon as they are deemed eligible for retirement. Replacement names will be announced alongside retired ones. The naming list slated for use this season, the same list that was used during the 2018-19 season, is shown. Names not retired this season will next appear in the naming list for the 2030-31 season.
|
|
|
Auxiliary naming list[]
If the original naming list is exhausted, the TTSS will begin naming storms using the list below:
|
|
|
|
Retirements[]
The TTSS has announced the retirement of three names as of 00:00 UTC on December 5; Calron and Flaas were retired on November 26 and replaced with Criasu and Fopaii, respectively. Meanwhile, Hoama was retired on December 4 and replaced with Hobisan. All replacement names will first appear on the 2030-31 naming list.
Season effects[]
Storm name |
Dates active | Storm category at peak intensity |
Max 1-min wind mph (km/h) |
Min. press. (mbar) |
Areas affected | Damage (USD) |
Deaths | |||
---|---|---|---|---|---|---|---|---|---|---|
Avatama | October 20 - 26 | Category 1 hurricane | 75 (120) | 991 | Malrom Island, Simabo, Brimphola | $1.05 billion | 26 (3) | |||
Buar | October 24 - 28 | Tropical storm | 40 (65) | 1005 | None | None | None | |||
Calron | October 27 - November 4 | Category 4 hurricane | 145 (230) | 921 | Vaerhubo, Sotoray, Malrom Island, Sasastalu | >$111.6 billion | >2,613 | |||
Delain | November 1 - 4 | Tropical storm | 40 (65) | 999 | Oorvelm, Sembung, Wazgol, Sireyalo Islands, Teelmondo | Minimal | None | |||
Eleni | November 7 - 15 | Category 1 hurricane | 80 (130) | 978 | Brimphola, Simabo, Malrom Island, Nobora, Sasastalu, Cleelai | ~$25 million | None | |||
Flaas | November 13 - 27 | Category 5 hurricane | 185 (295) | 889 | Vaerhubo, Oorvelm, Sembung, Wazgol, Sireyalo Islands, Teelmondo, Simabo, Brimphola | ≥$3.8 billion | 137 | |||
07 | November 14 - 18 | Tropical depression | 35 (55) | 1008 | None | None | None | |||
Geu | November 22 - 25 | Tropical storm | 45 (75) | 1001 | Vaerhubo, Malrom Island, Sasastalu, Cleelai | $54.66 million | 4 | |||
Hoama | November 25 - December 3 | Category 5 hurricane | 175 (280) | 915 | Malrom Island, Sasastalu, Cleelai | >$1.64 billion | >96 | |||
Ivindi | December 6 - present | Tropical storm | 65 (100) | 983 | None | None | None | |||
Season aggregates | ||||||||||
10 systems | October 20 - present | 185 (295) | 889 | >$118.17 billion | >2,876 (3) |
Notes[]
References[]
- ↑ Fool, Blustering (November 18, 2024). Teelmondo Tropical Surveillance System Broadcast 102 ADVISORY 12 FOR HURRICANE FLAAS. Teelmondo Tropical Surveillance System. Hypothetical Hurricanes Wiki. Retrieved on November 18, 2024.
- ↑ Fool, Blustering (November 18, 2024). Teelmondo Tropical Surveillance System Broadcast 105 ADVISORY 13 FOR HURRICANE FLAAS. Teelmondo Tropical Surveillance System. Hypothetical Hurricanes Wiki. Retrieved on November 18, 2024.
- ↑ Fool, Blustering (November 20, 2024). Teelmondo Tropical Surveillance System Broadcast 112 ADVISORY 16 FOR HURRICANE FLAAS. Teelmondo Tropical Surveillance System. Hypothetical Hurricanes Wiki. Retrieved on November 20, 2024.
- ↑ Fool, Blustering (November 18, 2024). Teelmondo Tropical Surveillance System Broadcast 103 FINAL ADVISORY FOR TROPICAL DEPRESSION 07. Teelmondo Tropical Surveillance System. Hypothetical Hurricanes Wiki. Retrieved on November 18, 2024.