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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
Click on product name to access the full product homepage for each specific storm
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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 0300UTC 45 kts 987 hPa
Scene CI# FT# AdjT# RawT# Eye T Cloud T
CRVBND 3.0 2.5 2.3 2.3 -4.96C -22.62C
AiDT
Date Time Vmax  
18Apr2026 0300UTC 43 kts  
 
DPRINT
Date Time Vmax MSLP
18Apr2026 0300UTC 61 kts 979 hPa
Vmax 25% Vmax 75%    
55 kts 68 kts    
DMINT
Date Time Vmax MSLP
18Apr2026 0304UTC 58 kts 981 hPa
Vmax 25% Vmax 75% MW Instr.  
53 kts 63 kts ATMS-N21  
MW Sounders
Date Time Vmax MSLP
18Apr2026 0302UTC 77 kts 955 hPa
  Satellite FOV  
  NOAA-21 20  
Shear Analysis
Date Time Shear Magnitude
 Shear Direction
18Apr2026 000UTC 21 kts 274 deg
Deep-layer vertical wind shear interpolated to storm center derived from the CIMSS AMV-aided analyses with vortex removed
TC-Scale AMVs