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Cooperative Institute for Meteorological Satellite Studies / University of Wisconsin-Madison
Tropical Cyclone 21S (Gezani)
Latest Real-Time CIMSS Product Summary
Current Time :     		NHC/JTWC
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Product Latency Color Code : Less than 3 hours old   3 - 6 hours old   6 - 12 hours old   Greater than 12 hours old   Not Available
Current Intensity Estimates ADT
Date Time Vmax MSLP
09Feb2026 2100UTC 57 kts 995 hPa
Scene CI# FT# AdjT# RawT# Eye T Cloud T
UNIFRM 3.6 3.6 3.7 3.7 -39.47C -70.28C
AiDT
Date Time Vmax  
09Feb2026 2100UTC 58 kts  
 
DPRINT
Date Time Vmax MSLP
09Feb2026 2100UTC 82 kts 969 hPa
Vmax 25% Vmax 75%    
75 kts 89 kts    
DMINT
Date Time Vmax MSLP
09Feb2026 1433UTC 56 kts 984 hPa
Vmax 25% Vmax 75% MW Instr.  
50 kts 63 kts WSFM01  
MW Sounders
Date Time Vmax MSLP
09Feb2026 1003UTC 57 kts 987 hPa
  Satellite FOV  
  NOAA-20 50  
SATCON
Date Time Vmax MSLP
09Feb2026 2100UTC 64 kts 986 hPa
Consensus Members
2 (ADT+Sounders)

RI Forecast AI-RI
Date Time Current Vmax Current MPI
09Feb2026 1800UTC 70 kts 9999 kts
20kt/12h 25kt/24h 30kt/24h 35kt/24h 40kt/24h 45kt/36h 55kt/48h 65kt/72h
27.6% 39.0% 33.1% 18.0% 11.4% 25.5% 10.5% 7.8%

Position Estimates ARCHER
Date Time Latitude Longitude
09Feb2026 1733UTC -17.90S 53.55E
Satellite Sensor Eye Diameter Eye Cert %
Metop-C ASCAT --- deg ---%

TC Structure MPERC
Date Time Prob. ERC onset
Full Model		 Prob. ERC onset
V-based
09Feb2026 1100UTC 0% 0%
 
MIMIC-TPW
 
MIMIC-TC
 
Shear Analysis
Date Time Shear Magnitude
 Shear Direction
09Feb2026 1800UTC 15 kts 26 deg
Deep-layer vertical wind shear interpolated to storm center derived from the CIMSS AMV-aided analyses with vortex removed
TC-Scale AMVs