CHANGES WITH THIS ADVISORY:
None
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
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
A Storm Surge Warning means there is a danger of lifethreatening 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 lifethreatening 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 Hurricane Warning means that hurricane conditions are expected somewhere within the warning area. A warning is typically issued 36 hours before the anticipated first occurrence of tropicalstormforce winds, conditions that make outside preparations difficult or dangerous. 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 area within 36 hours.
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 during the next 48 hours. For a depiction of areas at risk, please see the National Weather Service Storm Surge Watch/Warning Graphic, available at hurricanes.gov.
A Hurricane Watch means that hurricane conditions are possible within the watch area.
A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, in this case within 12 to 24 hours.
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.
CHANGES WITH THIS ADVISORY:
None
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
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
A Storm Surge Warning means there is a danger of lifethreatening 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 lifethreatening 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 Hurricane Warning means that hurricane conditions are expected somewhere within the warning area. A warning is typically issued 36 hours before the anticipated first occurrence of tropicalstormforce winds, conditions that make outside preparations difficult or dangerous. 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 area within 36 hours.
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 during the next 48 hours. For a depiction of areas at risk, please see the National Weather Service Storm Surge Watch/Warning Graphic, available at hurricanes.gov.
A Hurricane Watch means that hurricane conditions are possible within the watch area.
A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, in this case within 12 to 24 hours.
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.
Key messages for Sally can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT4 and WMO header WTNT44 KNHC.
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 Lake Borgne...711 ft Port Fourchon to Mouth of the Mississippi River...47 ft Ocean Springs to MS/AL Border...47 ft Lake Pontchartrain and Lake Maurepas...46 ft MS/AL Border to AL/FL Border including Mobile Bay...24 ft AL/FL Border to Chassahowitzka including Pensacola Bay, Choctawhatchee Bay, and Saint Andrew Bay...13 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. Surgerelated 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 westcentral 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 lifethreatening surf and rip current conditions. Please consult products from your local weather office.
Key messages for Sally can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT4 and WMO header WTNT44 KNHC.
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 Lake Borgne...711 ft Port Fourchon to Mouth of the Mississippi River...47 ft Ocean Springs to MS/AL Border...47 ft Lake Pontchartrain and Lake Maurepas...46 ft MS/AL Border to AL/FL Border including Mobile Bay...24 ft AL/FL Border to Chassahowitzka including Pensacola Bay, Choctawhatchee Bay, and Saint Andrew Bay...13 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. Surgerelated 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 westcentral 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 lifethreatening surf and rip current conditions. Please consult products from your local weather office.
At 800 AM EDT (1200 UTC), the center of Tropical Storm Sally was located near latitude 27.3 North, longitude 84.6 West. Sally is moving toward the westnorthwest near 13 mph (20 km/h), and a westnorthwestward or northwestward motion is expected through Monday. A decrease in forward speed and a turn toward the north northwest is forecast on Tuesday. On the forecast track, the center of Sally will move over the southeastern and eastern Gulf of Mexico today, move over the northcentral Gulf of Mexico tonight and Monday, and approach the northcentral Gulf Coast within the hurricane warning area late Monday and Tuesday.
Maximum sustained winds are near 50 mph (85 km/h) with higher gusts. Strengthening is expected over the next couple of days, and Sally is forecast to become a hurricane on Monday, with some additional strengthening possible through early Tuesday.
Tropicalstormforce winds extend outward up to 90 miles (150 km) from the center. A buoy located about 25 miles offshore of Venice, Florida, has reported sustained winds of 45 mph and a gust to 58 mph within the past few hours.
The latest minimum central pressure based on data from an Air Force Reserve reconnaissance aircraft is 996 mb (29.41 inches).
At 800 AM EDT (1200 UTC), the center of Tropical Storm Sally was located near latitude 27.3 North, longitude 84.6 West. Sally is moving toward the westnorthwest near 13 mph (20 km/h), and a westnorthwestward or northwestward motion is expected through Monday. A decrease in forward speed and a turn toward the north northwest is forecast on Tuesday. On the forecast track, the center of Sally will move over the southeastern and eastern Gulf of Mexico today, move over the northcentral Gulf of Mexico tonight and Monday, and approach the northcentral Gulf Coast within the hurricane warning area late Monday and Tuesday.
Maximum sustained winds are near 50 mph (85 km/h) with higher gusts. Strengthening is expected over the next couple of days, and Sally is forecast to become a hurricane on Monday, with some additional strengthening possible through early Tuesday.
Tropicalstormforce winds extend outward up to 90 miles (150 km) from the center. A buoy located about 25 miles offshore of Venice, Florida, has reported sustained winds of 45 mph and a gust to 58 mph within the past few hours.
The latest minimum central pressure based on data from an Air Force Reserve reconnaissance aircraft is 996 mb (29.41 inches).
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