Return to Homepage
Cooperative Institute for Meteorological Satellite Studies / University of Wisconsin-Madison
Tropical Cyclone 04W (Sinlaku)
Latest Real-Time CIMSS Product Summary
Current Time :     		NHC/JTWC
Click on product name to access the full product homepage for each specific storm
Mouse over images to enlarge; click to view in window
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
12Apr2026 1000UTC 155 kts 896 hPa
Scene CI# FT# AdjT# RawT# Eye T Cloud T
EYE 7.5 7.5 7.6 8.0 22.54C -83.48C
AiDT
Date Time Vmax  
12Apr2026 1000UTC 149 kts  
 
DPRINT
Date Time Vmax MSLP
12Apr2026 1000UTC 157 kts 917 hPa
Vmax 25% Vmax 75%    
150 kts 164 kts    
DMINT
Date Time Vmax MSLP
12Apr2026 0536UTC 128 kts 932 hPa
Vmax 25% Vmax 75% MW Instr.  
120 kts 137 kts SSMISF18  
MW Sounders
Date Time Vmax MSLP
12Apr2026 0311UTC 118 kts 924 hPa
  Satellite FOV  
  NOAA-21 40  
SATCON
Date Time Vmax MSLP
12Apr2026 0400UTC 126 kts 930 hPa
Consensus Members
2 (ADT+Sounders)

RI Forecast AI-RI
Date Time Current Vmax Current MPI
12Apr2026 0600UTC 130 kts 9999 kts
20kt/12h 25kt/24h 30kt/24h 35kt/24h 40kt/24h 45kt/36h 55kt/48h 65kt/72h
44.5% 32.2% 13.7% 1.0% 9.5% 1.5% 1.0% 0.5%

Position Estimates ARCHER
Date Time Latitude Longitude
12Apr2026 0850UTC 10.43N 150.57E
Satellite Sensor Eye Diameter Eye Cert %
SSMIS-16 85-92GHz 0.30 deg 100.0%

TC Structure MPERC
Date Time Prob. ERC onset
Full Model		 Prob. ERC onset
V-based
12Apr2026 0800UTC 80% 67%
 
MIMIC-TPW
 
MIMIC-TC
 
Shear Analysis
Date Time Shear Magnitude
 Shear Direction
12Apr2026 600UTC 10 kts 108 deg
Deep-layer vertical wind shear interpolated to storm center derived from the CIMSS AMV-aided analyses with vortex removed
TC-Scale AMVs