Typhoon 04W


UW-CIMSS Automated Satellite-Based
Advanced Dvorak Technique (ADT)
Version 9.1
 
Current Intensity Analysis
 


                     UW - CIMSS                     
              ADVANCED DVORAK TECHNIQUE       
                    ADT-Version 9.1                
         Tropical Cyclone Intensity Algorithm       

             ----- Current Analysis ----- 
     Date :  13 APR 2026    Time :   210000 UTC
      Lat :   13:53:59 N     Lon :  146:46:12 E

     
                CI# /Pressure/ Vmax
                7.1 / 909.0mb/143.0kt

     
             Final T#  Adj T#  Raw T# 
                6.8     6.7     6.7

 Estimated radius of max. wind based on IR : 17 km

 Center Temp : +17.1C    Cloud Region Temp : -74.5C

 Scene Type : EYE  

 Subtropical Adjustment : OFF 

 Extratropical Adjustment : OFF 

 Positioning Method : ARCHER POSITIONING 

 Ocean Basin : WEST PACIFIC  
 Dvorak CI > MSLP Conversion Used : CKZ Method  

 Tno/CI Rules : Constraint Limits : NO LIMIT 
                   Weakening Flag : ON    
           Rapid Dissipation Flag : OFF   

 C/K/Z MSLP Estimate Inputs :
  - Average 34 knot radii :  210nmi
  - Environmental MSLP    : 1006mb

 Satellite Name :   HIM-9 
 Satellite Viewing Angle : 17.7 degrees 

****************************************************

History File Listing
Threshold
All Basins = 12.0
ARCHER Information
PMW Information
Wind Radii Estimates
(based on Knaff et al. 2016)

(naut.mi.) R34 R50 R64
NE 180.0  100.0  65.0 
SE 170.0  95.0  55.0 
SW 130.0  75.0  35.0 
NW 170.0  95.0  55.0 
Parameters Used
RMW derived from ADT
TC current intensity from ADT = 143.0 (kts)
TC forward speed from Forecast Interpolation = 5.6 (kts)
TC heading from Forecast Interpolation = 323.1 (deg)
Historical listing of wind radii values
Timeline plots of Wind Radii : 34kt   50kt   64kt
Satellite Imagery
Time Series
HTML5 Movie