FLORIDA
STORMS
Hurricane Ida
LOCATED
385 MI SSE OF THE MOUTH OF THE MISSISSIPPI RIVER
WINDS
85 MPH
PRESSURE
985 MB
MOVING
NW AT 16 MPH
From the National Hurricane Center at 700 AM CDT Sat Aug 28 2021
Ida expected to rapidly intensify as it moves over the southeastern and central Gulf of Mexico through tonight.
TAP LINKS BELOW TO FOCUS
Alerts
hazards
summary

CHANGES WITH THIS ADVISORY:

None

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Storm Surge Warning is in effect for...
- East of Rockefeller Wildlife Refuge Louisiana to the Mississippi/Alabama border
- Vermilion Bay, Lake Borgne, Lake Pontchartrain, and Lake Maurepas

A Hurricane Warning is in effect for...
- Intracoastal City Louisiana to the Mouth of the Pearl River
- Lake Pontchartrain, Lake Maurepas, and Metropolitan New Orleans

A Storm Surge Watch is in effect for...
- Sabine Pass to Rockefeller Wildlife Refuge Louisiana
- Mobile Bay

A Hurricane Watch is in effect for...
- Cameron Louisiana to west of Intracoastal City Louisiana
- Mouth of the Pearl River to the Mississippi/Alabama border

A Tropical Storm Warning is in effect for...
- Cameron Louisiana to west of Intracoastal City Louisiana
- Mouth of the Pearl River to the Mississippi/Alabama border

A Tropical Storm Watch is in effect for...
- Mississippi/Alabama border to the Alabama/Florida border

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.

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 tropicalstormforce winds, conditions that make outside preparations difficult or dangerous.

A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours.

Interests elsewhere along the northern U.S. Gulf coast should monitor the progress of this system.

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...
- East of Rockefeller Wildlife Refuge Louisiana to the Mississippi/Alabama border
- Vermilion Bay, Lake Borgne, Lake Pontchartrain, and Lake Maurepas

A Hurricane Warning is in effect for...
- Intracoastal City Louisiana to the Mouth of the Pearl River
- Lake Pontchartrain, Lake Maurepas, and Metropolitan New Orleans

A Storm Surge Watch is in effect for...
- Sabine Pass to Rockefeller Wildlife Refuge Louisiana
- Mobile Bay

A Hurricane Watch is in effect for...
- Cameron Louisiana to west of Intracoastal City Louisiana
- Mouth of the Pearl River to the Mississippi/Alabama border

A Tropical Storm Warning is in effect for...
- Cameron Louisiana to west of Intracoastal City Louisiana
- Mouth of the Pearl River to the Mississippi/Alabama border

A Tropical Storm Watch is in effect for...
- Mississippi/Alabama border to the Alabama/Florida border

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.

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 tropicalstormforce winds, conditions that make outside preparations difficult or dangerous.

A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours.

Interests elsewhere along the northern U.S. Gulf coast should monitor the progress of this system.

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 Ida can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT4, WMO header WTNT44 KNHC, and on the web at hurricanes.gov/graphics_at4.shtml?key_messages.

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...

Morgan City, LA to Mouth of the Mississippi River...1015 ft Mouth of the Mississippi River to Ocean Springs, MS including Lake Borgne...711 ft Intracoastal City, LA to Morgan City, LA including Vermilion Bay...69 ft Ocean Springs, MS to MS/AL border...47 ft Lake Pontchartrain...47 ft Lake Maurepas...35 ft Pecan Island, LA to Intracoastal City, LA...35 ft MS/AL border to AL/FL border including Mobile Bay...24 ft Sabine Pass to Pecan Island, LA...24 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 near and to the east of the landfall location, where the surge will be accompanied by large and dangerous 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 in the hurricane warning area along the northern Gulf coast beginning Sunday with tropical storm conditions expected to begin by late Saturday night or early Sunday morning. These conditions will spread inland over portions of Louisiana and Mississippi Sunday night and Monday. Gusty winds are possible over portions of western Cuba and the Florida Keys this morning.

RAINFALL: Ida will bring an additional 2 to 4 inches of rain with isolated maximum amounts of 6 inches across western Cuba today. These rainfall amounts may produce flash floods and mudslides.

As Ida moves into the Louisiana coast late Sunday, total rainfall accumulations of 8 to 16 inches with isolated maximum amounts of 20 inches are possible across southeast Louisiana and southern Mississippi through Monday. This rainfall is likely to result in significant flash and riverine flooding impacts.

Ida is forecast to turn northeast as it moves inland later Monday, with rainfall totals of 4 to 8 inches possible from northeastern Louisiana and central Mississippi into the Tennessee Valley. This is likely to result in considerable flash and riverine flooding impacts.

TORNADOES: A few tornadoes will be possible Sunday through early Monday across southeast Louisiana and southern Mississippi.

SURF: Swells generated by Ida will continue to affect western Cuba through today. Swells will begin reaching portions of the northern Gulf coast later today and continue through Monday. These swells are likely to cause lifethreatening surf and rip current conditions. Please consult products from your local weather office.

Key messages for Ida can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT4, WMO header WTNT44 KNHC, and on the web at hurricanes.gov/graphics_at4.shtml?key_messages.

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...

Morgan City, LA to Mouth of the Mississippi River...1015 ft Mouth of the Mississippi River to Ocean Springs, MS including Lake Borgne...711 ft Intracoastal City, LA to Morgan City, LA including Vermilion Bay...69 ft Ocean Springs, MS to MS/AL border...47 ft Lake Pontchartrain...47 ft Lake Maurepas...35 ft Pecan Island, LA to Intracoastal City, LA...35 ft MS/AL border to AL/FL border including Mobile Bay...24 ft Sabine Pass to Pecan Island, LA...24 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 near and to the east of the landfall location, where the surge will be accompanied by large and dangerous 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 in the hurricane warning area along the northern Gulf coast beginning Sunday with tropical storm conditions expected to begin by late Saturday night or early Sunday morning. These conditions will spread inland over portions of Louisiana and Mississippi Sunday night and Monday. Gusty winds are possible over portions of western Cuba and the Florida Keys this morning.

RAINFALL: Ida will bring an additional 2 to 4 inches of rain with isolated maximum amounts of 6 inches across western Cuba today. These rainfall amounts may produce flash floods and mudslides.

As Ida moves into the Louisiana coast late Sunday, total rainfall accumulations of 8 to 16 inches with isolated maximum amounts of 20 inches are possible across southeast Louisiana and southern Mississippi through Monday. This rainfall is likely to result in significant flash and riverine flooding impacts.

Ida is forecast to turn northeast as it moves inland later Monday, with rainfall totals of 4 to 8 inches possible from northeastern Louisiana and central Mississippi into the Tennessee Valley. This is likely to result in considerable flash and riverine flooding impacts.

TORNADOES: A few tornadoes will be possible Sunday through early Monday across southeast Louisiana and southern Mississippi.

SURF: Swells generated by Ida will continue to affect western Cuba through today. Swells will begin reaching portions of the northern Gulf coast later today and continue through Monday. These swells are likely to cause lifethreatening surf and rip current conditions. Please consult products from your local weather office.

At 700 AM CDT (1200 UTC), the center of Hurricane Ida was located near latitude 24.4 North, longitude 85.7 West. Ida is moving toward the northwest near 16 mph (26 km/h) and this general motion should continue through late Sunday or early Monday, followed by a slower northward motion on Monday. On the forecast track, the center of Ida will move over the southeastern Gulf of Mexico today and move over the central Gulf of Mexico tonight and early Sunday. Ida is then expected to make landfall along the U.S. northern Gulf coast within the hurricane warning area on Sunday, and then move inland over portions of Louisiana or western Mississippi later on Monday.

Maximum sustained winds have increased to near 85 mph (140 km/h) with higher gusts. Rapid strengthening is forecast during the next 24 to 36 hours and Ida is expected to be an extremely dangerous major hurricane when it approaches the northern Gulf coast on Sunday. Weakening is expected after Ida makes landfall.

Hurricaneforce winds extend outward up to 25 miles (35 km) from the center and tropicalstormforce winds extend outward up to 115 miles (185 km).

The latest minimum central pressure estimated from NOAA reconnaissance aircraft data is 985 mb (29.09 inches).

At 700 AM CDT (1200 UTC), the center of Hurricane Ida was located near latitude 24.4 North, longitude 85.7 West. Ida is moving toward the northwest near 16 mph (26 km/h) and this general motion should continue through late Sunday or early Monday, followed by a slower northward motion on Monday. On the forecast track, the center of Ida will move over the southeastern Gulf of Mexico today and move over the central Gulf of Mexico tonight and early Sunday. Ida is then expected to make landfall along the U.S. northern Gulf coast within the hurricane warning area on Sunday, and then move inland over portions of Louisiana or western Mississippi later on Monday.

Maximum sustained winds have increased to near 85 mph (140 km/h) with higher gusts. Rapid strengthening is forecast during the next 24 to 36 hours and Ida is expected to be an extremely dangerous major hurricane when it approaches the northern Gulf coast on Sunday. Weakening is expected after Ida makes landfall.

Hurricaneforce winds extend outward up to 25 miles (35 km) from the center and tropicalstormforce winds extend outward up to 115 miles (185 km).

The latest minimum central pressure estimated from NOAA reconnaissance aircraft data is 985 mb (29.09 inches).

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