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Cooperative Institute for Meteorological Satellite Studies / University of Wisconsin-Madison
Tropical Cyclone 26W (Choi-wan)
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
02Oct2026 1700UTC 57 kts 987 hPa
Scene CI# FT# AdjT# RawT# Eye T Cloud T
UNIFRM 3.6 3.6 3.7 3.7 -79.43C -72.29C
AiDT-V2
Date Time Vmax  
02Oct2026 1700UTC 52 kts  
 
DPRINT
Date Time Vmax MSLP
02Oct2026 1700UTC 66 kts NaN hPa
Vmax 25% Vmax 75%    
58 kts 74 kts    
DMINT
Date Time Vmax MSLP
02Oct2026 0813UTC 55 kts 986 hPa
Vmax 25% Vmax 75% MW Instr.  
50 kts 61 kts WSFM1  
MW Sounders
Date Time Vmax MSLP
02Oct2026 1557UTC 74 kts 961 hPa
  Satellite FOV  
  NOAA-20 57  
SATCON
Date Time Vmax MSLP
02Oct2026 1700UTC 67 kts 971 hPa
Consensus Members
2 (ADT+Sounders)

RI Forecast AI-RI
Date Time Current Vmax Current MPI
02Oct2026 0000UTC 55 kts 125 kts
20kt/12h 25kt/24h 30kt/24h 35kt/24h 40kt/24h 45kt/36h 55kt/48h 65kt/72h
4.7% 27.7% 17.8% 9.8% 3.4% 19.4% 16.0% 22.0%

Position Estimates ARCHER
Date Time Latitude Longitude
02Oct2026 1430UTC 17.85N 144.68E
Satellite Sensor Eye Diameter Eye Cert %
HIMAWARI9 IR 0.10 deg 5.7%

TC Structure MPERC
Date Time Prob. ERC onset
Full Model		 Prob. ERC onset
V-based
02Oct2026 0600UTC 0% 0%
 
MIMIC-TPW
 
MIMIC-TC
 
Shear Analysis
Date Time Shear Magnitude
 Shear Direction
02Oct2026 1200UTC 6 kts 357 deg
Deep-layer vertical wind shear interpolated to storm center derived from the CIMSS AMV-aided analyses with vortex removed
TC-Scale AMVs