816 
 WTPZ43 KNHC 011438
 TCDEP3
 
 HURRICANE JIMENA DISCUSSION NUMBER  24
 NWS NATIONAL HURRICANE CENTER MIAMI FL       EP132015
 800 AM PDT TUE SEP 01 2015
 
 Enhanced BD-Curve infrared images and an earlier microwave
 overpass from the Global Precipitation Measurement satellite
 continue to show the presence of a double eyewall structure with
 evidence of erosion of Jimena's inner eyewall in the southern
 portion.  Since the overall presentation reveals decay of the
 eyewall, the initial intensity is lowered to 105 kt and is based on
 a blend of the TAFB and SAB Current and Final-T numbers. Although
 the sea surface temperatures are expected to remain relatively warm
 ahead of the cyclone through at least day 4, and westerly shear does
 not appear to affect Jimena until near the end of the period, a
 marginal thermodynamic atmosphere is most likely the cause of the
 weakening trend that has commenced.  The intensity forecast is
 basically an update of the previous one and is weighed heavily on
 the SHIPS model and the HWRF.
 
 The initial motion is west-northwestward or, 290/9 kt.  Jimena has
 made its expected turn toward the west-northwest and is now moving
 toward a growing weakness in the subtropical ridge.  A subsequent
 turn toward the northwestward and north-northwestward is forecast by
 the 48 hour period and through the end of the period.  The NHC
 forecast is nudged slightly to the right of the previous package and
 sides with the TVCX multi-model consensus.
 
 Jimena has moved into the Central Pacific basin.  Therefore, this is
 the last advisory on this system by the National Hurricane Center.
 Subsequent advisories will be issued by the Central Pacific
 Hurricane Center in Honolulu, Hawaii.
 
 
 FORECAST POSITIONS AND MAX WINDS
 
 INIT  01/1500Z 16.9N 140.1W  105 KT 120 MPH
  12H  02/0000Z 17.3N 141.0W  100 KT 115 MPH
  24H  02/1200Z 17.8N 142.0W   95 KT 110 MPH
  36H  03/0000Z 18.3N 142.8W   90 KT 105 MPH
  48H  03/1200Z 18.8N 143.3W   85 KT 100 MPH
  72H  04/1200Z 19.9N 144.1W   75 KT  85 MPH
  96H  05/1200Z 21.5N 144.9W   65 KT  75 MPH
 120H  06/1200Z 23.4N 146.2W   55 KT  65 MPH
 
 $$
 Forecaster Roberts