| Teelmondo Tropospheric Surveillance Center | |
|---|---|
 The official logo of the Teelmondo Tropospheric Surveillance Center | |
| General information | |
| Established | May 14, 1970 (As the Teelmondo Tropical Surveillance System) |
| Jurisdiction | Government of Teelmondo |
| Headquarters | Roetimbi, Teelmondo |
| Founded by | CyclonicWrath765 |
The Teelmondo Tropospheric Surveillance Center, abbreviated as TTSC, is a major branch of the Government of Teelmondo that serves as the main weather forecasting office for the two tropical cyclone basins in Roambatoane: the Roambatoane Ocean basin and the Ereyum Ocean basin (which in turn is split into North, Central, and South sub-basins). Additionally, the TTSC monitors the Sasastalu Ocean and Exogenesian Ocean for Exostorms. While tropical cyclones only rarely affect Teelmondo (only 5 have ever brought tropical storm-force winds to the country since 1970[1][2], the most recent being Hurricane Flaas in November 2024[3]), the government runs the TTSC as a sign of goodwill towards other countries in Roambatoane, as well as for important allies in Archaeia[4] such as Fukuru, Fragon, Sekima, and Karsu.
While it isn't the official forecasting center for the Archaeian tropical cyclone basin, the TTSC does monitor the basin and regularly works in conjunction with the Archaeian Ocean Tropical Surveillance System (AOTSS) to track systems of interest and issue advisories. The two weather bureaus have enjoyed an amiable relationship since 2024 after urgent warnings from the AOTSS saved "hundreds of lives" during Hurricane Flaas, as claimed by Sireyalan Prime Minister Jaques Viando. In addition, the TTSC and the Whitewater Typhoon Center work together to track tropical cyclones in the Ereyum Ocean basin. The TTSC and the Fabianian and Eastern Florakian Hurricane Station (FAEFHS) collaborate to monitor systems of interest in the Fabianian tropical cyclone basin[5] and issue advisories when deemed necessary. This partnership was formally announced in November 2025.
The TTSC was originally founded in 1970 as the Teelmondo Tropical Surveillance System, or TTSS, but CEO CyclonicWrath765 determined that the name required changing due to the fact that Exostorms aren't tropical systems (being extratropical instead).
Forecasting/alert systems[]
The Roambatoane Hurricane Advisory Index (RHAI)[]
The Roambatoane Hurricane Advisory Index is the TTSC's main tool for issuing alerts for tropical cyclones in the East Roambatoane basin. Each level of alert provides recommended guidelines for actions and preparations in case of the issuance of said alert. In October 2025, the TTSC changed the scale a bit, lowering the original High Hurricane Emergency criteria to Hurricane Emergency level and redefining the High Hurricane Emergency criteria as "forecasting models showing a Major hurricane landfall in an area that is particularly vulnerable to hurricane impacts, whether it be due to geography, poor infrastructure, an inability to effectively respond to hurricanes, or any other exacerbating factor, within 96 hours."
| HIGH HURRICANE EMERGENCY DANGEROUS hurricane conditions forecast in a VULNERABLE AREA within 96 hours. IMMEDIATE ACTION IS URGED!! |
Prepare IMMEDIATELY to EVACUATE from CATACLYSMIC hurricane impacts, including winds greater than 74 mph, in a particularly at-risk area. Be ready to react if given further directions, and prepare for the potential for extended power outages, a lack of access to basic necessities like food and water, and disabled infrastructure. |
| Hurricane EMERGENCY Major hurricane conditions expected within 36 hours. |
Prepare IMMEDIATELY for severe, destructive major hurricane impacts, including winds greater than 114 mph, and be ready to react if given further directions. Be prepared for the potential for extended power outages and a lack of access to basic necessities like food and water. |
| Hurricane Warning Hurricane conditions expected within 36 hours. |
Prepare immediately for dangerous Category 1-2 hurricane impacts, including winds of up to 114 mph, and be ready to react if given further directions |
| Hurricane Watch Hurricane conditions possible within 48 hours. |
As a precautionary measure, begin securing your home for possible Category 1-2 hurricane effects, including winds of up to 114 mph |
| Tropical Storm Warning Tropical storm conditions expected within 36 hours. |
Prepare immediately for tropical storm impacts, including winds of up to 74 mph, and be ready to react if given further directions |
| Tropical Storm Watch Tropical storm conditions possible within 48 hours. |
As a precautionary measure, begin securing your home for possible tropical storm effects, including winds of up to 74 mph |
| Storm Surge Warning Life-threatening inundation from storm surge possible within 36 hours. |
Prepare immediately for storm surge impacts and be ready to react if given further directions |
| Storm Surge Watch Life-threatening inundation from storm surge possible within 48 hours. |
As a precautionary measure, begin securing your home for possible storm surge effects |
| Tropical Cyclone Advisory Tropical cyclone landfall possible within 72 hours. |
Monitor your local weather weather service or trusted storm tracking site to get regular updates and be ready to begin preparing at a moment's notice |
The Skogem-Helmholtz Typhoon Alert System (SHTAS)[]
The Skogem-Helmholtz Typhoon Alert System is the Ereyum equivalent of the RHAI. The TTSC uses the SHTAS to issue wind alerts related to tropical cyclones in the Ereyum basin.
| Name | Meaning |
|---|---|
| Tropical Cyclone Advisory Level 1 | Winds of up to 39 mph possible within 96 hours |
| Tropical Cyclone Advisory Level 2 | Winds of up to 74 mph possible within 96 hours |
| Tropical Cyclone Advisory Level 3 | Winds of up to 99 mph possible within 96 hours |
| Tropical Cyclone Advisory Level 4 | Winds of up to 114 mph possible within 96 hours |
| Tropical Cyclone Advisory Level 5 | Winds of up to 129 mph possible within 96 hours |
| Tropical Cyclone Advisory Level 6 | Winds of up to 144 mph possible within 96 hours |
| Super Typhoon Advisory Level 7 | Winds of up to 159 mph possible within 96 hours |
| Super Typhoon Advisory Level 8 | Winds of over 159 mph possible within 96 hours |
| Tropical Cyclone Alert Level 1 | Winds of up to 39 mph expected within 48 hours |
| Tropical Cyclone Alert Level 2 | Winds of up to 74 mph expected within 48 hours |
| Tropical Cyclone Alert Level 3 | Winds of up to 99 mph expected within 48 hours |
| Tropical Cyclone Alert Level 4 | Winds of up to 114 mph expected within 48 hours |
| Tropical Cyclone Alert Level 5 | Winds of up to 129 mph expected within 48 hours |
| Tropical Cyclone Alert Level 6 | Winds of up to 144 mph expected within 48 hours |
| Super Typhoon Alert Level 7 | Winds of up to 159 mph expected within 48 hours |
| Super Typhoon Alert Level 8 | Winds of over 159 mph expected within 48 hours |
The Pressure Intensity Scale[]
The Pressure Intensity Scale is a scale used by the TTSC to measure the intensity of a tropical cyclone based on the storm's minimum barometric pressure. A storm's storm surge potential is often calculated using a mix of what level the storm is on the Pressure Intensity Scale, its forward movement speed, its wind speed, and a few other factors.
| Level | Pressure (mbar) | Most recent example | General impacts | References |
|---|---|---|---|---|
| Type 1 | > 985 | Tropical Storm Zozeyo (2025) | Minor to moderate: storm surge usually < 3 feet, inundation moderate along low-lying shorelines | |
| Type 2 | 985 - 966 | Hurricane Hivindu (2025) | Minor to significant: storm surge typically between 1 and 5 feet in height, beachfront properties may experience moderate to extensive inundation | |
| Type 3 | 965 - 941 | Typhoon Sim-Wala (2025) | Moderate to severe: storm surge typically between 3 and 8 feet in height, beachfront properties often severely damaged, storm surge may push a ways inshore | |
| Type 4 | 940 - 925 | Hurricane Edelam (2025) | Moderate to extreme: storm surge typically between 5 and 14 feet in height, widespread shoreline destruction and erosion commonplace, inland penetration probable | |
| Type 5 | < 925 | Typhoon Nahodi (2025) | Significant to catastrophic: storm surge typically between 8 and 25 feet in height but could feasibly attain almost any realistic size, shorelines and nearshore properties usually devastated, storm surge may push far inland |
The Ereyum Typhoon Scale[]
The Ereyum Typhoon Scale (ETS) is a scale used by the TTSC to categorize the intensity of tropical cyclones in the Ereyum Ocean based on the storm's wind speed. It is slightly different from the Saffir–Simpson hurricane wind scale, having been modified to better suit the TTSC's methods of weather data collection.
| Level | 1-minute sustained winds (mph) | Most recent example | Historic examples | References |
|---|---|---|---|---|
| Tropical Depression | < 40 | Tropical Depression Toreyat (2025) | Yubanti (1999), Skilmao (2008), Puwaz (2011), Felu (2021) | |
| Tropical Storm | 40 - 74 | Tropical Storm Zozeyo (2025) | Cabona (2001), Unanrone (2001), Vim-Skai (2005), Teebalwan (2011), Felraym (2018) | |
| Category 1 Typhoon | 75 - 99 | Typhoon Loksper (2025) | Cubolatz (1995), Fumgar (2002), Nemnem (2014), Revohal (2023) | |
| Category 2 Typhoon | 100 - 114 | Typhoon Kikskua (2025) | Mutorzi (2006), Sembrolu (2007), Erfover (2014), Catalance (2020) | |
| Category 3 Typhoon | 115 - 129 | Typhoon Sim-Wala (2025) | Wipwoy (2002), Defleyen (2005), Tuhord (2021), Askayru (2025) | |
| Category 4 Typhoon | 130 - 144 | Typhoon Morubon (2025) | Clomatu (2000), Minjano (2008), Heymbyel (2011), Demorlom (2013), Zilfaif (2018) | |
| Category 4 Super Typhoon | 145 - 159 | Typhoon Pomat-Tay (2025) | Menomol (1998), Jembyen (2006), Ogartak (2011), Xevaro (2022) | |
| Category 5 Super Typhoon | ≥160 | Typhoon Nahodi (2025) | Shogun (1959), Gogosken (2004), Dihi-Tog (2007), Umeremi (2017), Orotaz (2020), Mirotab (2023), Nahodi (2025) |
The Roambatoane Exostorm Scale[]
| Level | 1-minute sustained winds (mph) | Most recent example | Historic examples | References |
|---|---|---|---|---|
| Class 1 Pre-Exogust | < 20 | Pre-Exogust 06 | ||
| Class 2 Exogust | 20 - 39 | Exogust 11 | ||
| Class 3 Exogale | 40 - 59 | Exogale Vafaf | ||
| Phase 1 Exostorm | 60 - 89 | |||
| Phase 2 Exostorm | 90 - 119 | Exostorm Goldpan | ||
| Phase 3 Deep Exostorm | 120 - 144 | |||
| Phase 4 Deep Exostorm | 145 - 164 | |||
| Phase 5 Deep Exostorm | ≥165 | Exostorm Butiner |
Project: Exostorm[]
Current systems[]
East Roambatoane[]
POST-TROPICAL CYCLONE IKOMA TTSC BULLETIN #11 FINAL ADVISORY UPDATE TIME: 1200 UTC DEC 26 2025 CURRENT WINDS: 35 MPH (55 KM/H) CURRENT PRESSURE: 1008 MBAR CURRENT LOCATION AND MOVEMENT: OVER OORVELM, MOVING WEST-NORTHWEST AT 24 MPH COMMENTS: IKOMA HAS BECOME POST-TROPICAL. THEREFORE, THIS IS THE FINAL ADVISORY. HEAVY RAIN IS STILL FALLING ACROSS SOUTHWESTERN OORVELM.
...IKOMA IS NOW POST-TROPICAL...THIS IS THE FINAL ADVISORY... 12:00 UTC Fri Dec 26, 2025 |
TROPICAL STORM HIVINDU TTSC BULLETIN #17 UPDATE TIME: 1200 UTC DEC 26 2025 CURRENT WINDS: 40 MPH (65 KM/H) CURRENT PRESSURE: 1001 MBAR CURRENT LOCATION AND MOVEMENT: 300 MILES WEST OF SASASTALU, MOVING NORTHEAST AT 19 MPH COMMENTS: LONG-LIVED HIVINDU IS EXPECTED TO BECOME AN EXTRATROPICAL CYCLONE OVER THE WEEKEND. MINOR WIND DAMAGE AND MODERATE RAINFALL COULD OCCUR ACROSS CLEELAION SATURDAY AND/OOR SUNDAY.
...Hivindu looks quite ragged on satellite now...mild impacts possible in Cleelai... 12:00 UTC Fri Dec 26, 2025 |
HURRICANE KIMUAN TTSC BULLETIN #6
UPDATE TIME: 1200 UTC DEC 26 2025
CURRENT WINDS: 150 MPH (240 KM/H)
CURRENT PRESSURE: 926 MBAR
CURRENT LOCATION AND MOVEMENT: 1,115 MILES EAST OF OORVELM, MOVING WEST-SOUTHWEST AT 26 MPH
COMMENTS: KIMUAN CONTINUES TO WEAKEN DUE TO AN EWRC AND FALLING WATER TEMPERATURES. HOWEVER, RESTRENGTHENING WILL LIKELY OCCUR TOMORROW AS CONDITIONS IMPROVE.
THIS IS A PARTICULARLY DANGEROUS SITUATION FOR SOUTHERN OORVELM! MULTIPLE SYSTEMS HAVE ALREADY IMPACTED THE REGION IN A RELATIVELY SHORT TIMEFRAME, PRESENTING A SEVERE FLOOD RISK!!
...POWERFUL KIMUAN THREATENS EVEN MORE RAINFALL ACROSS STRICKEN OORVELM... 12:00 UTC Fri Dec 26, 2025 |
TROPICAL STORM LEIZON TTSC BULLETIN #1 UPDATE TIME: 1200 UTC DEC 26 2025 CURRENT WINDS: 40 MPH (65 KM/H) CURRENT PRESSURE: 1000 MBAR CURRENT LOCATION AND MOVEMENT: FAR OUT TO SEA, MOVING WEST-SOUTHWEST AT 19 MPH COMMENTS: LEIZON FORMS IN THE OPEN ROAMBATOANE OCEAN. SOME MODEST STRENGTHENING COULD OCCUR, BUT THE STORM WILL ULTIMATELY BE PLAGUED BY THE COLD WAKES LEFT BEHIND BY IKOMA AND KIMUAN.
...LEIZON FORMS WELL OUT TO SEA... 12:00 UTC Fri Dec 26, 2025 |
Ereyum[]
South Ereyum[]
TYPHOON ZOZEYO TTSC BULLETIN #11 UPDATE TIME: 1200 UTC DEC 23 2025 CURRENT WINDS: 120 MPH (195 KM/H) CURRENT PRESSURE: 955 MBAR CURRENT LOCATION AND MOVEMENT: FAR OUT TO SEA, MOVING NORTHWEST AT 29 MPH COMMENTS: TYPHOON ZOZEYO STILL DASHING NORTHWESTWARD. POSES NO THREAT TO LAND AT THIS TIME AS UPPER-LEVEL JETS WILL KEEP IT AWAY FROM ANY LANDMASS.
...ZOZEYO RACING NORTHWESTWARD WITH VARIATING INTENSITY...WILL REMAIN OFFSHORE FOR THE TIME BEING... 12:00 UTC Tue Dec 23, 2025 |
Central Ereyum[]
NO ACTIVITY IN THE CENTRAL EREYUM OCEAN AT THIS TIME.
North Ereyum[]
AREA OF CONVECTION 8E-5N TTSC BULLETIN #5 UPDATE TIME: 1200 UTC DEC 23 2025 CHANCES OF DEVELOPMENT IN 24/72 HOURS: 10%/40% CURRENT LOCATION AND MOVEMENT: 965 MILES WEST OF REX NIMSHADU, MOVING NORTHWEST AT 25 MPH *FORMATION CHANCE THROUGH THE NEXT 24 HOURS...LOW...10 PERCENT *FORMATION CHANCE THROUGH THE NEXT 72 HOURS...MODERATE...40 PERCENT
Fabianian Basin[]
There are no storms in the Fabianian basin at this time. This season has ended.
See also[]
Meteorological centers affiliated with the TTSC
Season articles
Notes[]
- ↑ Of these, only two (Tropical Storm Eleni in 1994 and Hurricane Reltiu in 2013) made landfall in Teelmondo. All other storms passed close to, but not over, the country.
- ↑ Only counting tropical cyclones. Therefore, this does not include non-tropical systems that brought tropical storm-strength winds to Teelmondo, e.g the Boxing Day Gale of 1993, which was an extratropical cyclone and therefore non-tropical.
- ↑ As of October 16, 2025.
- ↑ Archaeia is a basin owned by Benji. The current tropical cyclone season in the basin is the 2025-26 Archaeia hurricane season.
- ↑ The Fabanian basin is owned by Mastercane. The current tropical cyclone season in the basin is the 2025 Fabianian Basin hurricane season.