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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
18Apr2026 1900UTC 30 kts 991 hPa
Scene CI# FT# AdjT# RawT# Eye T Cloud T
SHEAR 2.0 1.5 1.5 1.5 17.53C 8.59C
AiDT
Date Time Vmax  
18Apr2026 1900UTC 35 kts  
 
DPRINT
Date Time Vmax MSLP
18Apr2026 1900UTC 42 kts 996 hPa
Vmax 25% Vmax 75%    
37 kts 47 kts    
DMINT
Date Time Vmax MSLP
18Apr2026 1825UTC 45 kts 994 hPa
Vmax 25% Vmax 75% MW Instr.  
40 kts 50 kts SSMISF18  
Date Time Vmax MSLP
18Apr2026 1623UTC 44 kts 991 hPa
Vmax 25% Vmax 75% MW Instr.  
39 kts 49 kts ATMS-N20  
18Apr2026 1021UTC 23.91N 147.16E
Satellite Sensor Eye Diameter Eye Cert %
Metop-A ASCAT --- deg ---%

TC Structure MPERC
Date Time Prob. ERC onset
Full Model		 Prob. ERC onset
V-based
18Apr2026 1800UTC 0% 0%
 
MIMIC-TPW
 
MIMIC-TC
 
Shear Analysis
Date Time Shear Magnitude
 Shear Direction
18Apr2026 1800UTC 26 kts 282 deg
Deep-layer vertical wind shear interpolated to storm center derived from the CIMSS AMV-aided analyses with vortex removed
TC-Scale AMVs