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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 1800UTC 65 kts 978 hPa
Scene CI# FT# AdjT# RawT# Eye T Cloud T
UNIFRM 4.0 3.3 3.3 3.1 -46.03C -48.69C
AiDT
Date Time Vmax  
17Apr2026 1800UTC 68 kts  
 
DPRINT
Date Time Vmax MSLP
17Apr2026 1800UTC 74 kts 978 hPa
Vmax 25% Vmax 75%    
68 kts 80 kts    
DMINT
Date Time Vmax MSLP
17Apr2026 1551UTC 75 kts 969 hPa
Vmax 25% Vmax 75% MW Instr.  
71 kts 80 kts ATMS-N21  
MW Sounders
Date Time Vmax MSLP
17Apr2026 1550UTC 97 kts 934 hPa
  Satellite FOV  
  NOAA-21 54  
Shear Analysis
Date Time Shear Magnitude
 Shear Direction
17Apr2026 1800UTC 18 kts 263 deg
Deep-layer vertical wind shear interpolated to storm center derived from the CIMSS AMV-aided analyses with vortex removed
TC-Scale AMVs