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 Alabama/Florida Border
- Lake Pontchartrain, Lake Maurepas, and Lake Borgne
- Mobile Bay
A Hurricane Warning is in effect for...
- Morgan City Louisiana to the Alabama/Florida Border
- Lake Pontchartrain and Lake Maurepas including metropolitan New Orleans
A Tropical Storm Warning is in effect for...
- Alabama/Florida Border to Indian Pass Florida
- Intracoastal City Louisiana to west of Morgan City
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. 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 Tropical Storm Watch means that tropical storm conditions are possible within the watch area.
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 Alabama/Florida Border
- Lake Pontchartrain, Lake Maurepas, and Lake Borgne
- Mobile Bay
A Hurricane Warning is in effect for...
- Morgan City Louisiana to the Alabama/Florida Border
- Lake Pontchartrain and Lake Maurepas including metropolitan New Orleans
A Tropical Storm Warning is in effect for...
- Alabama/Florida Border to Indian Pass Florida
- Intracoastal City Louisiana to west of Morgan City
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. 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 Tropical Storm Watch means that tropical storm conditions are possible within the watch area.
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, and on the web at www.hurricanes.gov/text/MIATCDAT4.shtml
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, MS including Lake Borgne...711 ft Ocean Springs, MS to MS/AL Border...58 ft MS/AL Border to AL/FL Border including Mobile Bay...47 ft Lake Pontchartrain and Lake Maurepas...46 ft Port Fourchon, LA to Mouth of the Mississippi River...35 ft AL/FL Border to Chassahowitzka, FL including Pensacola Bay, Choctawhatchee Bay, and Saint Andrew Bay...13 ft Burns Point, LA to Port Fourchon, LA...13 ft
Overtopping of local levees outside of the Hurricane and Storm Damage Risk Reduction System is possible where local inundation values may be higher than those shown above.
The deepest water will occur along the immediate coast in areas of onshore winds, 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 to begin within the hurricane warning area tonight. Tropical storm conditions are possible within the watch area today, and are expected to begin within the warning area later today.
RAINFALL: Sally is expected to be a slow moving system as it approaches land, producing 8 to 16 inches of rainfall with isolated amounts of 24 inches over portions of the central Gulf Coast from the western Florida Panhandle to far southeast Louisiana through the middle of the week. Lifethreatening flash flooding is likely. In addition, this rainfall will likely lead to widespread minor to isolated major flooding on area rivers.
Sally is forecast move farther inland early Wednesday and track into the Southeast with rainfall of 6 to 12 inches possible across portions of inland southeast Mississippi and Alabama. Significant flash and urban flooding is likely, as well as widespread minor to moderate flooding on some rivers.
Further heavy rain is then anticipated across portions of eastern Tennessee, northern Georgia and western Carolinas Thursday into Friday. Flash, urban, and minor river flooding is possible across this region.
Outer bands of Sally are expected to produce additional rainfall of 1 to 3 inches across the Florida peninsula today. This rainfall may produce flash and urban flooding and prolong high flows and ongoing minor flooding on rivers across central Florida.
TORNADOES: A tornado or two may occur this afternoon through Tuesday over coastal areas of the Florida Panhandle, Mississippi, Alabama, and extreme southeastern Louisiana.
SURF: Swells from Sally will continue to affect areas from the west coast of the Florida peninsula westward through the coast of southeastern Louisiana 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, and on the web at www.hurricanes.gov/text/MIATCDAT4.shtml
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, MS including Lake Borgne...711 ft Ocean Springs, MS to MS/AL Border...58 ft MS/AL Border to AL/FL Border including Mobile Bay...47 ft Lake Pontchartrain and Lake Maurepas...46 ft Port Fourchon, LA to Mouth of the Mississippi River...35 ft AL/FL Border to Chassahowitzka, FL including Pensacola Bay, Choctawhatchee Bay, and Saint Andrew Bay...13 ft Burns Point, LA to Port Fourchon, LA...13 ft
Overtopping of local levees outside of the Hurricane and Storm Damage Risk Reduction System is possible where local inundation values may be higher than those shown above.
The deepest water will occur along the immediate coast in areas of onshore winds, 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 to begin within the hurricane warning area tonight. Tropical storm conditions are possible within the watch area today, and are expected to begin within the warning area later today.
RAINFALL: Sally is expected to be a slow moving system as it approaches land, producing 8 to 16 inches of rainfall with isolated amounts of 24 inches over portions of the central Gulf Coast from the western Florida Panhandle to far southeast Louisiana through the middle of the week. Lifethreatening flash flooding is likely. In addition, this rainfall will likely lead to widespread minor to isolated major flooding on area rivers.
Sally is forecast move farther inland early Wednesday and track into the Southeast with rainfall of 6 to 12 inches possible across portions of inland southeast Mississippi and Alabama. Significant flash and urban flooding is likely, as well as widespread minor to moderate flooding on some rivers.
Further heavy rain is then anticipated across portions of eastern Tennessee, northern Georgia and western Carolinas Thursday into Friday. Flash, urban, and minor river flooding is possible across this region.
Outer bands of Sally are expected to produce additional rainfall of 1 to 3 inches across the Florida peninsula today. This rainfall may produce flash and urban flooding and prolong high flows and ongoing minor flooding on rivers across central Florida.
TORNADOES: A tornado or two may occur this afternoon through Tuesday over coastal areas of the Florida Panhandle, Mississippi, Alabama, and extreme southeastern Louisiana.
SURF: Swells from Sally will continue to affect areas from the west coast of the Florida peninsula westward through the coast of southeastern Louisiana 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 1130 AM CDT (1630 UTC), the center of Hurricane Sally was located near latitude 28.7 North, longitude 87.0 West. Sally is moving toward the westnorthwest near 7 mph (11 km/h). This general motion is expected to continue today, followed by a decrease in forward speed and a turn toward the northwest tonight and a northward turn sometime on Tuesday. On the forecast track, the center of Sally will move over the northcentral Gulf of Mexico today, approach southeastern Louisiana tonight, and make landfall in the hurricane warning area on Tuesday or Tuesday night. Afterward, Sally is expected to move slowly northnortheastward near the northern Gulf Coast through Wednesday.
Data from NOAA and Air Force Reserve Hurricane Hunter aircraft indicate that Sally has rapidly strengthened. The maximum sustained winds are near 90 mph (150 km/h) with higher gusts. Additional strengthening is forecast during the next day or so.
Hurricaneforce winds extend outward up to 25 miles (35 km) from the center and tropicalstormforce winds extend outward up to 125 miles (205 km).
The latest minimum central pressure estimated from reconnaissance aircraft data is 986 mb (29.12 inches).
At 1130 AM CDT (1630 UTC), the center of Hurricane Sally was located near latitude 28.7 North, longitude 87.0 West. Sally is moving toward the westnorthwest near 7 mph (11 km/h). This general motion is expected to continue today, followed by a decrease in forward speed and a turn toward the northwest tonight and a northward turn sometime on Tuesday. On the forecast track, the center of Sally will move over the northcentral Gulf of Mexico today, approach southeastern Louisiana tonight, and make landfall in the hurricane warning area on Tuesday or Tuesday night. Afterward, Sally is expected to move slowly northnortheastward near the northern Gulf Coast through Wednesday.
Data from NOAA and Air Force Reserve Hurricane Hunter aircraft indicate that Sally has rapidly strengthened. The maximum sustained winds are near 90 mph (150 km/h) with higher gusts. Additional strengthening is forecast during the next day or so.
Hurricaneforce winds extend outward up to 25 miles (35 km) from the center and tropicalstormforce winds extend outward up to 125 miles (205 km).
The latest minimum central pressure estimated from reconnaissance aircraft data is 986 mb (29.12 inches).
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