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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
10Apr2026 0420UTC 43 kts 1001 hPa
Scene CI# FT# AdjT# RawT# Eye T Cloud T
UNIFRM 2.9 2.9 3.0 3.4 -77.27C -76.84C
AiDT
Date Time Vmax  
10Apr2026 0420UTC 37 kts  
 
DPRINT
Date Time Vmax MSLP
10Apr2026 0420UTC 47 kts 991 hPa
Vmax 25% Vmax 75%    
42 kts 52 kts    
DMINT
Date Time Vmax MSLP
10Apr2026 0350UTC 49 kts 989 hPa
Vmax 25% Vmax 75% MW Instr.  
44 kts 53 kts ATMS-N21  
Date Time Vmax MSLP
10Apr2026 0301UTC 46 kts 993 hPa
Vmax 25% Vmax 75% MW Instr.  
42 kts 50 kts ATMS-N20  
09Apr2026 2309UTC 8.16N 151.24E
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
N/A N/AUTC N/A N/A
 
MIMIC-TPW
 
MIMIC-TC
 
Shear Analysis
Date Time Shear Magnitude
 Shear Direction
10Apr2026 000UTC 21 kts 97 deg
Deep-layer vertical wind shear interpolated to storm center derived from the CIMSS AMV-aided analyses with vortex removed
TC-Scale AMVs