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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
17Apr2026 0400UTC 77 kts 968 hPa
Scene CI# FT# AdjT# RawT# Eye T Cloud T
EYE 4.5 4.4 4.7 4.9 9.01C -48.84C
AiDT
Date Time Vmax  
17Apr2026 0400UTC 78 kts  
 
DPRINT
Date Time Vmax MSLP
17Apr2026 0400UTC 79 kts 971 hPa
Vmax 25% Vmax 75%    
74 kts 85 kts    
DMINT
Date Time Vmax MSLP
17Apr2026 0322UTC 79 kts 965 hPa
Vmax 25% Vmax 75% MW Instr.  
74 kts 84 kts ATMS-N21  
MW Sounders
Date Time Vmax MSLP
17Apr2026 0321UTC 101 kts 930 hPa
  Satellite FOV  
  NOAA-21 31  
Shear Analysis
Date Time Shear Magnitude
 Shear Direction
17Apr2026 000UTC 14 kts 200 deg
Deep-layer vertical wind shear interpolated to storm center derived from the CIMSS AMV-aided analyses with vortex removed
TC-Scale AMVs