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Cooperative Institute for Meteorological Satellite Studies / University of Wisconsin-Madison
Tropical Cyclone 04W (Sinlaku)
Archived 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
12Apr2026 2300UTC 164 kts 888 hPa
Scene CI# FT# AdjT# RawT# Eye T Cloud T
EYE 7.8 7.4 7.3 7.3 22.28C -77.57C
AiDT
Date Time Vmax  
12Apr2026 2300UTC 158 kts  
 
DPRINT
Date Time Vmax MSLP
12Apr2026 2300UTC 155 kts 914 hPa
Vmax 25% Vmax 75%    
148 kts 161 kts    
DMINT
Date Time Vmax MSLP
12Apr2026 2126UTC 166 kts 912 hPa
Vmax 25% Vmax 75% MW Instr.  
159 kts 173 kts SSMISF16  
Date Time Vmax MSLP
12Apr2026 1955UTC 168 kts 910 hPa
Vmax 25% Vmax 75% MW Instr.  
161 kts 175 kts WSFM01  
12Apr2026 2127UTC 12.00N 149.04E
Satellite Sensor Eye Diameter Eye Cert %
SSMIS-16 85-92GHz 0.20 deg 100.0%

TC Structure MPERC
Date Time Prob. ERC onset
Full Model		 Prob. ERC onset
V-based
12Apr2026 2100UTC 97% 69%
 
MIMIC-TPW
 
MIMIC-TC
 
Shear Analysis
Date Time Shear Magnitude
 Shear Direction
12Apr2026 1800UTC 13 kts 112 deg
Deep-layer vertical wind shear interpolated to storm center derived from the CIMSS AMV-aided analyses with vortex removed
TC-Scale AMVs