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Cooperative Institute for Meteorological Satellite Studies / University of Wisconsin-Madison
Tropical Cyclone 20E (Simon)
Latest Real-Time 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
08Oct2026 2040UTC 47 kts 996 hPa
Scene CI# FT# AdjT# RawT# Eye T Cloud T
CRVBND 3.1 2.4 2.5 2.5 -24.41C -49.25C
AiDT-V2
Date Time Vmax  
08Oct2026 2040UTC 44 kts  
 
DPRINT
Date Time Vmax MSLP
08Oct2026 2010UTC 60 kts 987 hPa
Vmax 25% Vmax 75%    
54 kts 66 kts    
DMINT
Date Time Vmax MSLP
08Oct2026 2009UTC 45 kts 990 hPa
Vmax 25% Vmax 75% MW Instr.  
41 kts 49 kts ATMS-N20  
Date Time Vmax MSLP
08Oct2026 1710UTC 53 kts 996 hPa
Vmax 25% Vmax 75% MW Instr.  
48 kts 59 kts TMS06  
Date Time Vmax MSLP
08Oct2026 1612UTC 52 kts 993 hPa
Vmax 25% Vmax 75% MW Instr.  
47 kts 57 kts MHS  
MW Sounders
Date Time Vmax MSLP
08Oct2026 2008UTC 47 kts 992 hPa
  Satellite FOV  
  NOAA-20 38  
SATCON
Date Time Vmax MSLP
08Oct2026 2010UTC 45 kts 995 hPa
Consensus Members
2 (ADT+Sounders)

RI Forecast AI-RI
Date Time Current Vmax Current MPI
08Oct2026 1800UTC 60 kts 142 kts
20kt/12h 25kt/24h 30kt/24h 35kt/24h 40kt/24h 45kt/36h 55kt/48h 65kt/72h
18.8% 57.0% 41.6% 35.8% 21.3% 62.0% 28.5% 17.0%

Position Estimates ARCHER
Date Time Latitude Longitude
08Oct2026 2009UTC 15.39N 104.17W
Satellite Sensor Eye Diameter Eye Cert %
ATMS-N20 183GHz 4.90 deg ---%

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
08Oct2026 1800UTC 2 kts 166 deg
Deep-layer vertical wind shear interpolated to storm center derived from the CIMSS AMV-aided analyses with vortex removed
TC-Scale AMVs