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Cooperative Institute for Meteorological Satellite Studies / University of Wisconsin-Madison
Tropical Cyclone 31P (Vaianu)
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
09Apr2026 0310UTC 29 kts 993 hPa
Scene CI# FT# AdjT# RawT# Eye T Cloud T
IRRCDO 1.9 1.9 2.3 2.7 -58.38C -32.39C
AiDT
Date Time Vmax  
09Apr2026 0310UTC 49 kts  
 
DPRINT
Date Time Vmax MSLP
09Apr2026 0310UTC 46 kts 997 hPa
Vmax 25% Vmax 75%    
40 kts 52 kts    
DMINT
Date Time Vmax MSLP
09Apr2026 0218UTC 48 kts 982 hPa
Vmax 25% Vmax 75% MW Instr.  
43 kts 53 kts ATMS-N21  
Date Time Vmax MSLP
09Apr2026 0129UTC 44 kts 984 hPa
Vmax 25% Vmax 75% MW Instr.  
40 kts 48 kts ATMS-N20  
MPERC
Date Time Prob. ERC onset
Full Model		 Prob. ERC onset
V-based
08Apr2026 1500UTC 22% 3%
 
MIMIC-TPW
 
MIMIC-TC
 
Shear Analysis
Date Time Shear Magnitude
 Shear Direction
09Apr2026 000UTC 36 kts 308 deg
Deep-layer vertical wind shear interpolated to storm center derived from the CIMSS AMV-aided analyses with vortex removed
TC-Scale AMVs