Here is the latest on Tropical Storm Sally from the national Hurricane Center.
SUMMARY OF 800 AM EDT…
LOCATION…27.3N 84.6W
ABOUT 155 MI…250 KM W OF PORT CHARLOTTE FLORIDA
ABOUT 300 MI…485 KM ESE OF THE MOUTH OF THE MISSISSIPPI RIVER
MAXIMUM SUSTAINED WINDS…50 MPH…85 KM/H
PRESENT MOVEMENT…WNW OR 300 DEGREES AT 13 MPH…20 KM/H
MINIMUM CENTRAL PRESSURE…996 MB…29.41 INCHES
WATCHES AND WARNINGS
A Storm Surge Warning is in effect for…
* Port Fourchon Louisiana to the Mississippi/Alabama Border
* Lake Pontchartrain, Lake Maurepas, and Lake Borgne
A Hurricane Warning is in effect for…
* Grand Isle Louisiana to Ocean Springs Mississippi
* Lake Pontchartrain and Lake Maurepas including metropolitan New
Orleans
A Storm Surge Watch is in effect for…
* Mississippi/Alabama Border to the Alabama/Florida Border
A Hurricane Watch is in effect for…
* East of Ocean Springs to the Alabama/Florida Border
A Tropical Storm Warning is in effect for…
* East of Ocean Springs to Indian Pass
A Tropical Storm Watch is in effect for…
* Indian Pass to Ochlockonee River Florida
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 Mississippi River to Ocean Springs including LakeBorgne…7 -11 ft
Port Fourchon to Mouth of the Mississippi River…4-7 ft
Ocean Springs to MS/AL Border…4-7 ft
Lake Pontchartrain and Lake Maurepas…4-6 ft
MS/AL Border to AL/FL Border including Mobile Bay…2-4 ft
AL/FL Border to Chassahowitzka including Pensacola Bay,
Choctawhatchee Bay, and Saint Andrew Bay…1-3 ft
The deepest water will occur along the immediate coast near and to the right of the landfall location, where the surge will be accompanied by large and damaging 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 forecast office.
WIND: Hurricane conditions are expected within the warning area starting late Monday, with hurricane conditions possible within the hurricane watch area by early Tuesday. Tropical storm conditions are possible within the watch area by Monday, and within the warning area late Monday.
RAINFALL: Tropical Storm Sally is expected to produce additional rainfall amounts of 1 to 3 inches with isolated amounts of 6 inches across southern and central Florida through Monday. This rainfall will produce flash and urban flooding and prolong high flows and ongoing minor flooding on rivers across Central Florida.
Tropical Storm Sally is expected to produce rainfall amounts of 6 to 12 inches with isolated amounts of 20 inches over portions of the Central Gulf Coast between the western Florida Panhandle and far southeast Louisiana from Monday into the middle of the week. Rainfall of 4 to 8 inches is possible farther inland over portions of Mississippi and Alabama. Sally is expected to be a slow moving system resulting in significant flash flooding near the Central Gulf Coast through the middle of the week. Flash, urban and rapid onset flooding along small streams, and minor to isolated major flooding on rivers is likely.
SURF: Swells will spread northward along the west-central coast of Florida and reach the Florida Panhandle and the northern Gulf Coast during the next couple of days. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office.
KEY MESSAGES
1. An extremely dangerous and life-threatening storm surge is now expected, and a Storm Surge Warning is in effect for areas outside the southeastern Louisiana Hurricane and Storm Damage Risk Reduction System from Port Fourchon Louisiana to the Mississippi/Alabama border. Residents in these areas should follow any advice given by local officials.
2. Hurricane conditions are expected by early Tuesday from Grand Isle, Louisiana to Ocean Springs, Mississippi, including Metropolitan New Orleans, with tropical storm conditions likely by Monday. Preparations should be rushed to completion in those areas.
3. Tropical Storm Sally is expected to produce flash flooding across southern and central Florida and prolong existing minor river flooding across Central Florida through Monday. Significant flash flooding and minor to isolated major river flooding is likely across portions of the Central Gulf Coast from Monday through the middle of the week.
FORECAST POSITIONS AND MAX WINDS
INIT 13/0900Z 27.0N 84.0W 45 KT 50 MPH
12H 13/1800Z 27.7N 85.4W 50 KT 60 MPH
24H 14/0600Z 28.3N 87.2W 60 KT 70 MPH
36H 14/1800Z 28.7N 88.7W 70 KT 80 MPH
48H 15/0600Z 29.2N 89.7W 85 KT 100 MPH
60H 15/1800Z 30.1N 90.0W 70 KT 80 MPH…INLAND
72H 16/0600Z 31.0N 90.0W 50 KT 60 MPH…INLAND
96H 17/0600Z 32.8N 88.6W 30 KT 35 MPH…INLAND
120H 18/0600Z 34.5N 84.5W 20 KT 25 MPH…INLAND
