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Tropical Storm Gordon Advisory Number 5
NWS National Hurricane Center Miami FL AL072018
1100 AM EDT Mon Sep 03 2018
...GORDON LASHING SOUTH FLORIDA WITH TROPICAL-STORM-FORCE WINDS AND
...STORM SURGE WARNING AND HURRICANE WATCH ISSUED FOR PORTIONS OF
THE CENTRAL GULF COAST...
SUMMARY OF 1100 AM EDT...1500 UTC...INFORMATION
ABOUT 60 MI...95 KM WNW OF KEY LARGO FLORIDA
ABOUT 50 MI...80 KM SSE OF MARCO ISLAND FLORIDA
MAXIMUM SUSTAINED WINDS...45 MPH...75 KM/H
PRESENT MOVEMENT...WNW OR 300 DEGREES AT 16 MPH...26 KM/H
MINIMUM CENTRAL PRESSURE...1009 MB...29.80 INCHES
WATCHES AND WARNINGS
CHANGES WITH THIS ADVISORY:
A Storm Surge Warning has been issued from Shell Beach, Louisiana,
to the Mississippi-Alabama border.
The Storm Surge Watch has been extended eastward from the
Mississippi-Alabama border to Navarre, Florida.
A Hurricane Watch has been issued from the Mouth of the Pearl River
to the Alabama-Florida Border.
The Tropical Storm Warning has been extended eastward to the
Okaloosa-Walton County Line.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
A Storm Surge Warning is in effect for...
* Shell Beach to Mississippi-Alabama border
A Storm Surge Watch is in effect for...
* West of Shell Beach to the Mouth of the Mississippi River
* East of the Mississippi-Alabama border to Navarre
A Hurricane Watch is in effect for...
* Mouth of the Pearl River to the Alabama-Florida Border
A Tropical Storm Warning is in effect for...
* Golden Beach to Bonita Beach
* Craig Key to Ocean Reef, including Florida Bay
* Okaloosa-Walton County Line westward to east of Morgan City,
Louisiana, including Lake Pontchartrain and Lake Maurepas
A Storm Surge Warning means there is a danger of life-threatening
inundation, from rising water moving inland from the coastline,
during the next 36 hours 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 Watch means that hurricane conditions are possible
within the watch area. A watch is typically issued 48 hours
before the anticipated first occurrence of tropical-storm-force
winds, conditions that make outside preparations difficult or
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 1100 AM EDT (1500 UTC), the center of Tropical Storm Gordon was
located near latitude 25.3 North, longitude 81.3 West. Gordon is
moving toward the west-northwest near 16 mph (26 km/h) and a west-
northwestward to northwestward motion is expected over the next
72 hours. On the forecast track, the center of Gordon will emerge
over the southeastern Gulf of Mexico by early afternoon, reach
the warning area along the central Gulf Coast by late Tuesday or
Tuesday night, and move inland over the lower Mississippi Valley on
Maximum sustained winds are near 45 mph (75 km/h) with higher gusts.
strengthening is forecast during the next 36 to 48 hours, and
Gordon could be near hurricane strength when it makes landfall
along the central Gulf Coast.
Tropical-storm-force winds extend outward up to 45 miles (75 km)
from the center.
The estimated minimum central pressure is 1009 mb (29.80 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...
Shell Beach to the Mississippi-Alabama border...3 to 5 ft.
Navarre Florida to the Mississippi-Alabama border...2 to 4 ft.
Shell Beach to the Mouth of Mississippi River...2 to 4 ft.
Mouth of the Mississippi River to the Louisiana-Texas border...1 to
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
2 to 4 inches over the central and northwestern Bahamas, the Florida
Keys, and South Florida through early Tuesday. Isolated maximum
amounts of 8 inches are possible over the southern Florida
Gordon is expected to produce total rain accumulations of 4 to 6
inches over southern Alabama, southern Mississippi and Louisiana,
with isolated maximum amounts of 8 inches through early Thursday.
These rainfall amounts may cause flash flooding.
WIND: Tropical storm conditions will continue through the
afternoon in the warning areas across South Florida and the Florida
Keys. Tropical storm conditions are expected within portions of the
central Gulf Coast warning area by late Tuesday, with hurricane
conditions possible late Tuesday or Tuesday night in the hurricane
TORNADOES: A couple of tornadoes are possible through tonight
across the southern and west-central Florida Peninsula.
Next intermediate advisory at 200 PM EDT.
Next complete advisory at 500 PM EDT.