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Cooperative Institute for Meteorological Satellite Studies / University of Wisconsin-Madison
Tropical Cyclone 04W (Four)
Archived CIMSS Product Summary
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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
09Apr2026 0710UTC 32 kts 1003 hPa
Scene CI# FT# AdjT# RawT# Eye T Cloud T
CRVBND 2.2 2.2 2.5 3.6 -56.88C -55.73C
AiDT
Date Time Vmax  
09Apr2026 0710UTC 31 kts  
 
DPRINT
Date Time Vmax MSLP
09Apr2026 0710UTC 26 kts 1000 hPa
Vmax 25% Vmax 75%    
24 kts 28 kts    
DMINT
Date Time Vmax MSLP
09Apr2026 0618UTC 31 kts 1000 hPa
Vmax 25% Vmax 75% MW Instr.  
27 kts 35 kts SSMISF18  
Date Time Vmax MSLP
09Apr2026 0330UTC 28 kts 1002 hPa
Vmax 25% Vmax 75% MW Instr.  
26 kts 31 kts AMSR2  
09Apr2026 0619UTC 8.07N 152.35E
Satellite Sensor Eye Diameter Eye Cert %
SSMIS-18 85-92GHz 1.10 deg 11.7%

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
09Apr2026 600UTC 22 kts 102 deg
Deep-layer vertical wind shear interpolated to storm center derived from the CIMSS AMV-aided analyses with vortex removed
TC-Scale AMVs