ZCZC MIATCPAT2 ALL
TTAA00 KNHC DDHHMM
Tropical Storm Gordon Intermediate Advisory Number 10A
NWS National Hurricane Center Miami FL AL072018
700 PM CDT Tue Sep 04 2018
...TROPICAL-STORM-FORCE WINDS SPREADING ONSHORE ALONG THE ALABAMA
AND WESTERN FLORIDA PANHANDLE COASTLINES...
SUMMARY OF 700 PM CDT...0000 UTC...INFORMATION
ABOUT 75 MI...125 KM SE OF BILOXI MISSISSIPPI
ABOUT 70 MI...115 KM S OF MOBILE ALABAMA
MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H
PRESENT MOVEMENT...NW OR 315 DEGREES AT 14 MPH...22 KM/H
MINIMUM CENTRAL PRESSURE...999 MB...29.50 INCHES
WATCHES AND WARNINGS
CHANGES WITH THIS ADVISORY:
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Storm Surge Warning is in effect for...
* Shell Beach to Dauphin Island
A Storm Surge Watch is in effect for...
* West of Shell Beach to the Mouth of the Mississippi River
* East of Dauphin Island to Navarre
A Hurricane Warning is in effect for...
* Mouth of the Pearl River to the Alabama-Florida Border
A Tropical Storm Warning is in effect for...
* West of the Mouth of the Pearl River to the Mouth of the
Mississippi River, including Lake Pontchartrain
* Alabama-Florida Border to Okaloosa-Walton County Line
A Storm Surge Warning means there is a danger of life-threatening
inundation, from rising water moving inland from the coastline,
in the indicated locations. For a depiction of areas at risk, please
see the National Weather Service Storm Surge Watch/Warning Graphic,
available at hurricanes.gov. This is a life-threatening situation.
Persons located within these areas should take all necessary actions
to protect life and property from rising water and the potential for
other dangerous conditions. Promptly follow evacuation and other
instructions from local officials.
A Storm Surge Watch means there is a possibility of life-
threatening inundation, from rising water moving inland from the
coastline, in the indicated locations.
A Hurricane Warning means that hurricane conditions are expected
somewhere within the warning area. Preparations to protect life
and property should be rushed to completion.
A Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning areas.
For storm information specific to your area, including possible
inland watches and warnings, please monitor products issued by your
local National Weather Service forecast office.
DISCUSSION AND OUTLOOK
At 700 PM CDT (0000 UTC), the center of Tropical Storm Gordon was
located by NOAA Doppler weather radars and a NOAA Hurricane
Hunter aircraft near latitude 29.7 North, longitude 87.9 West.
Gordon is moving toward the northwest near 14 mph (22 km/h). A
northwestward motion with some decrease in forward speed is
expected over the next couple of days. On the forecast track, the
center of Gordon will make landfall along the north-central Gulf
Coast within the hurricane warning area this evening or tonight, and
then move inland over the lower Mississippi Valley through
Wednesday. A gradual turn toward the north-northwest and north is
forecast to occur on Friday.
Maximum sustained winds are near 70 mph (110 km/h) with higher
gusts. Gordon could still become a hurricane before landfall occurs
along the north-central Gulf Coast. Rapid weakening is forecast
after Gordon moves inland.
Tropical-storm-force winds extend outward up to 80 miles (130 km)
from the center. A NOAA buoy located about 10 miles south of Orange
Beach, Alabama has recently reported sustained winds of 54 mph
(86 km/h) with a gust to 60 mph (97 km/h). A NOAA Coastal Marine
Observing site on Dauphin Island, Alabama has measured a sustained
wind of 45 mph (72 km/h) with a gust to 54 mph (87 km/h). A wind
gust to 39 mph (63 km/h) was recently reported at Gulf Shores,
The latest minimum central pressure estimated from NOAA
reconnaissance aircraft data is 999 mb (29.50 inches).
HAZARDS AFFECTING LAND
STORM SURGE: The combination of a dangerous storm surge and the
tide will cause normally dry areas near the coast to be flooded by
rising waters moving inland from the shoreline. The water could
reach the following heights above ground somewhere in the indicated
areas if the peak surge occurs at the time of high tide...
Mouth of the Pearl River to Dauphin Island...3 to 5 ft.
Navarre Florida to Dauphin Island, including Mobile Bay...2 to 4 ft.
Mouth of the Pearl River to the Mouth of Mississippi River...2 to 4
The deepest water will occur along the immediate coast near and to
the east of the landfall location, where the surge will be
accompanied by large waves. Surge-related flooding depends on the
relative timing of the surge and the tidal cycle, and can vary
greatly over short distances. For information specific to your area,
please see products issued by your local National Weather Service
RAINFALL: Gordon is expected to produce total rain accumulations of
4 to 8 inches over the western Florida Panhandle, southwest Alabama,
southern and central Mississippi, northeastern Louisiana, and
southern Arkansas, with isolated maximum amounts of 12 inches
through late Thursday. This rainfall will cause flash flooding
across portions of these areas.
WIND: Tropical storm conditions will continue to spread onshore
during the next several hours within portions of the warning area,
with hurricane conditions forecast by this evening in the hurricane
TORNADOES: A couple of tornadoes are possible through tonight
near the coasts of Mississippi, Alabama, and the Florida Panhandle.
Next complete advisory at 1000 PM CDT.