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Draft:Tropical Depression 05F

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Tropical Depression 05F/Tropical Low 06U
05F on February 2.
Meteorological history
Formed30 January 2024
DissipatedActive
Tropical depression
10-minute sustained (FMS)
Highest winds55 km/h (35 mph)
Lowest pressure996 hPa (mbar); 29.41 inHg
Tropical storm
1-minute sustained (SSHWS/JTWC)
Highest winds65 km/h (40 mph)
Lowest pressure996 hPa (mbar); 29.41 inHg
Overall effects
FatalitiesNone
DamageNone
Areas affected

Part of the 2022–23 Australian region and South Pacific cyclone seasons

Tropical Depression 05F, also known as Tropical Low 06U, is a long lived, currently active tropical cyclone. The 5th tropical low and tropical disturbance of the 2023–24 Australian region cyclone season and 2023–24 South Pacific cyclone season respectively, 05F emerged as a subtropical low on January 30.

Meteorological history

 
Map plotting the storm's track and intensity, according to the Saffir–Simpson scale
Map key
  Tropical depression (≤38 mph, ≤62 km/h)
  Tropical storm (39–73 mph, 63–118 km/h)
  Category 1 (74–95 mph, 119–153 km/h)
  Category 2 (96–110 mph, 154–177 km/h)
  Category 3 (111–129 mph, 178–208 km/h)
  Category 4 (130–156 mph, 209–251 km/h)
  Category 5 (≥157 mph, ≥252 km/h)
  Unknown
Storm type
triangle  Extratropical cyclone, remnant low, tropical disturbance, or monsoon depression

On January 30, the BoM reported that Subtropical Low 06U had developed off the southern coast of Queensland.[1] Over the next couple of days, the system moved north-eastwards before it into the South Pacific basin during February 1, where it was classified as Tropical Disturbance 05F by the Fiji Meteorological Service.[2]

Under a moderately sheared environment with warm sea surface temperatures. The disturbance's convective structure rapidly deteriorated in the low-level circulation center (LLLC).[3] However, the system quickly re-developed LLLC, and three days later,[4][5] the system moved eastwards onto the boundary of the region—the 160th meridian east—at approximately 12:00 UTC on February 5, before returning to the Southern Pacific basin proper on February 7, and the JTWC issued a TCFA on the low, noting that it was likely to intensify significantly.[6][7] The next day, the agency upgraded the system to tropical storm, initiating advisories on it as Tropical Cyclone 12P.[8] The storm continued to be negatively effected by northwesterly wind shear.[9] Later, the storm began undergoing rapid expansion, with a central cold cover along with colder convective tops.[10] However, as it moved over Epi island in Vanuatu, its weakly-defined and exposed LLLC embedded in deep convection.[11][12] Shortly afterward, the JTWC issued their final warning, as it became elongated due to a dry air intrusion.[13][14] Over the next few weeks, the FMS continued monitoring the system as a tropical disturbance.

References

  1. ^ Tropical Cyclone Forecast 30 January 2024 08:31 am UTC (Report). Australian Bureau of Meteorology. 30 January 2024. Archived from the original on 30 January 2024. Retrieved 29 January 2024.
  2. ^ "Tropical Disturbance Summary For area Equator to 25S, 160E to 120W Issued from RSMC NADI Feb 02 00:30 UTC". www.met.gov.fj. 2 February 2024. Archived from the original on 2 February 2024. Retrieved 2 February 2024.
  3. ^ "WWPS21 NFFN 250600". www.met.gov.fj. January 25, 2024. Archived from the original on February 3, 2024. Retrieved January 25, 2024.
  4. ^ Tropical Cyclone Forecast 12:03 am UTC 5 February 2024 (Report). Australian Bureau of Meteorology. February 5, 2024. Archived from the original on February 5, 2024. Retrieved February 5, 2024.
  5. ^ "WWPS21 NFFN 042100". www.met.gov.fj. February 4, 2024. Archived from the original on February 4, 2024. Retrieved February 4, 2024.
  6. ^ Tropical Cyclone Formation Alert (Invest 94P) (Report). United States Joint Typhoon Warning Center. 7 February 2024. Archived from the original on February 7, 2024. Retrieved 7 February 2024.
  7. ^ Eastern Region Tropical Cyclone Technical Bulletin issued at 1905 UTC 7/2/2024 (Report). Australian Bureau of Meteorology. February 7, 2024. Archived from the original on February 7, 2024. Retrieved February 7, 2024.
  8. ^ Tropical Cyclone 12P (Twelve) Warning No. 1 (Report). United States Joint Typhoon Warning Center. 8 February 2024. Archived from the original on February 8, 2024. Retrieved 8 February 2024.
  9. ^ Prognostic Reasoning for Tropical Cyclone 12P (Twelve) Warning No. 3 (Report). United States Joint Typhoon Warning Center. 8 February 2024. Archived from the original on February 8, 2024. Retrieved 8 February 2024.
  10. ^ Prognostic Reasoning for Tropical Cyclone 12P (Twelve) Warning No. 8 (Report). United States Joint Typhoon Warning Center. 9 February 2024. Archived from the original on February 10, 2024. Retrieved 10 February 2024.
  11. ^ Prognostic Reasoning for Tropical Cyclone 12P (Twelve) Warning No. 9 (Report). United States Joint Typhoon Warning Center. 10 February 2024. Archived from the original on February 10, 2024. Retrieved 10 February 2024.
  12. ^ "Forecast Map for Tropical Depression 05F Number 29". www.met.gov.fj. February 10, 2024. Archived from the original on February 10, 2024. Retrieved February 10, 2024.
  13. ^ Tropical Disturbance Advisory Number C13 (Report). Fiji Meteorological Service. February 10, 2024. Archived from the original on February 11, 2024. Retrieved February 11, 2024.
  14. ^ Prognostic Reasoning for Tropical Cyclone 12P (Twelve) Warning No. 10 (Report). United States Joint Typhoon Warning Center. 10 February 2024. Archived from the original on February 10, 2024. Retrieved 10 February 2024. Alt URL