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Cooperative Institute for Meteorological Satellite Studies / University of Wisconsin-Madison
Tropical Cyclone 09S (Grant)
Latest Real-Time 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
31Dec2025 2230UTC 82 kts 975 hPa
Scene CI# FT# AdjT# RawT# Eye T Cloud T
UNIFRM 4.7 4.5 4.2 3.8 -79.43C -77.75C
AiDT
Date Time Vmax  
31Dec2025 2230UTC 79 kts  
 
DPRINT
Date Time Vmax MSLP
31Dec2025 2230UTC 48 kts 985 hPa
Vmax 25% Vmax 75%    
42 kts 55 kts    
DMINT
Date Time Vmax MSLP
31Dec2025 2201UTC 59 kts 983 hPa
Vmax 25% Vmax 75% MW Instr.  
52 kts 66 kts GMI  
MW Sounders
Date Time Vmax MSLP
31Dec2025 0115UTC 110 kts 947 hPa
  Satellite FOV  
  17 41  
SATCON
Date Time Vmax MSLP
31Dec2025 0300UTC 98 kts 964 hPa
Consensus Members
2 (ADT+Sounders)

RI Forecast AI-RI
Date Time Current Vmax Current MPI
31Dec2025 1800UTC 80 kts 9999 kts
20kt/12h 25kt/24h 30kt/24h 35kt/24h 40kt/24h 45kt/36h 55kt/48h 65kt/72h
4.1% 8.1% 7.6% 0.6% 0.6% 5.0% 5.5% 2.2%

Position Estimates ARCHER
Date Time Latitude Longitude
31Dec2025 1621UTC -15.57S 70.88E
Satellite Sensor Eye Diameter Eye Cert %
Metop-C ASCAT --- deg ---%

TC Structure MPERC
Date Time Prob. ERC onset
Full Model		 Prob. ERC onset
V-based
31Dec2025 2100UTC 12% 3%
 
MIMIC-TPW
 
MIMIC-TC
 
Shear Analysis
Date Time Shear Magnitude
 Shear Direction
31Dec2025 1800UTC 25 kts 71 deg
Deep-layer vertical wind shear interpolated to storm center derived from the CIMSS AMV-aided analyses with vortex removed
TC-Scale AMVs