UW - CIMSS                     
              ADVANCED DVORAK TECHNIQUE       
                  ADT-Version 8.2.1                
         Tropical Cyclone Intensity Algorithm       

             ----- Current Analysis ----- 
     Date :  10 SEP 2017    Time :   091500 UTC
      Lat :   23:58:59 N     Lon :   81:14:29 W

     
                CI# /Pressure/ Vmax
                6.3 / 939.5mb/122.2kt

     
             Final T#  Adj T#  Raw T# 
                6.3     6.5     6.5

000
WTNT41 KNHC 100901
TCDAT1

Hurricane Irma Discussion Number  45
NWS National Hurricane Center Miami FL       AL112017
500 AM EDT Sun Sep 10 2017

An Air Force Reserve Hurricane Hunter aircraft reported 700-mb
flight-level winds of 128 kt in the northeastern eyewall, along with
surface wind estimates of 110-115 kt from the Stepped Frequency
Microwave Radiometer.  In addition, the aircraft data shows that the
central pressure has fallen to 928 mb.  Based on these data, the
initial intensity has been increased to 115 kt, again making Irma a
Category 4 hurricane.