ZCZC MIATCDAT4 ALL TTAA00 KNHC DDHHMM Hurricane Milton Special Discussion Number 9 NWS National Hurricane Center Miami FL AL142024 700 AM CDT Mon Oct 07 2024 Recent data from both NOAA and Air Force Hurricane Hunter aircraft indicate that Milton continues to rapidly strengthen. The Air Force aircraft very recently reported a peak flight-level wind of 120 kt, and dropsonde data show that the pressure has fallen to around 945 mb, which is down about 9 mb from a previous dropsonde report from the NOAA aircraft about an hour ago. This special advisory is being issued to increase the initial intensity to 110 kt, and to increase the short term intensity forecast that now shows a peak wind speed of 135 kt in 24 hours. The aircraft fixes were also a little south of the previous forecast track and a southward adjustment to the official track forecast has been made through 36 hours. Hurricane-force winds are explicitly forecast to affect the northern coast of Yucatan, and residents in that area should rush preparations to completion. The updated track forecast has necessitated the government of Mexico to issue a Tropical Storm Warning and Hurricane Watch from Celestun southward to Campeche. The storm surge forecast has been increased to 3 to 5 feet above ground level for portions of the northern coast of the Yucatan Peninsula. No changes to the NHC track or intensity forecast were made after 36 hours. This special advisory was issued in lieu of the normal intermediate advisory. Key Messages: 1. Dangerous hurricane-force winds are expected across portions of the northern coast of the Yucatan Peninsula. A life-threatening storm surge with damaging waves is also likely along portions of the northern coast of the Yucatan Peninsula. 2. There is an increasing risk of life-threatening storm surge and damaging winds for portions of the west coast of the Florida Peninsula beginning Tuesday night or early Wednesday. Storm Surge and Hurricane Watches are now in effect for portions of the west coast of the Florida Peninsula and residents in that area should follow any advice given by local officials and evacuate if told to do so. 3. Areas of heavy rainfall will impact portions of Florida today well ahead of Milton, with heavy rainfall more directly related to the system expected later on Tuesday through Wednesday night. This rainfall will bring the risk of considerable flash, urban, and areal flooding, along with the potential for moderate to major river flooding. FORECAST POSITIONS AND MAX WINDS INIT 07/1200Z 21.8N 92.2W 110 KT 125 MPH 12H 07/1800Z 21.6N 91.5W 125 KT 145 MPH 24H 08/0600Z 21.8N 89.3W 135 KT 155 MPH 36H 08/1800Z 22.9N 87.5W 130 KT 150 MPH 48H 09/0600Z 24.7N 85.7W 125 KT 145 MPH 60H 09/1800Z 26.4N 83.9W 110 KT 125 MPH 72H 10/0600Z 28.1N 81.7W 75 KT 85 MPH...INLAND 96H 11/0600Z 30.0N 75.5W 55 KT 65 MPH...POST-TROP/EXTRATROP 120H 12/0600Z 31.5N 68.4W 45 KT 50 MPH...POST-TROP/EXTRATROP $$ Forecaster Blake/Brown NNNN
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Page last modified: Tuesday, 31-Dec-2024 12:09:50 UTC