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Nate strengthens into hurricane

Tropical Storm Nate (NHC)

Tropical Storm Nate strengthened into a hurricane Friday night, triggering hurricane warnings for parts of the United States.

The National Hurricane Center issued hurricane warning from Grand Isle, Louisiana to the Alabama-Florida border, as well as New Orleans and Lake Pontchartrain.

Nate has maximum sustained winds of 75 mph, making it a Category 1 hurricane.



BULLETIN FROM NATIONAL HURRICANE CENTER:

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Hurricane Warning is in effect for...

* Grand Isle Louisiana to the Alabama/Florida border

* Metropolitan New Orleans and Lake Pontchartrain

A Storm Surge Warning is in effect for...

* Morgan City Louisiana to the Okaloosa/Walton County Line Florida

* Northern and western shores of Lake Pontchartrain

A Tropical Storm Warning is in effect for...

* Punta Herrero to Rio Lagartos Mexico

* Pinar del Rio Cuba

* Lake Maurepas

* West of Grand Isle to Morgan City Louisiana

* East of the Alabama/Florida border to the Okaloosa/Walton County

Line.

A Hurricane Watch is in effect for...

* Punta Herrero to Rio Lagartos Mexico

* Lake Maurepas

* East of the Alabama/Florida border to the Okaloosa/Walton County

Line

* West of Grand Isle to Morgan City Louisiana

A Storm Surge Watch is in effect for...

* East of the the Okaloosa/Walton County Line to Indian Pass Florida

A Tropical Storm Watch is in effect for...

* East of the Okaloosa/Walton County Line to Indian Pass Florida

* West of Morgan City to Intracoastal City Louisiana

* Isle of Youth Cuba

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 tropical-storm-

force 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.

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, generally within 48 hours.

Interests elsewhere in western Cuba, the Yucatan Peninsula, and the

northern coast of the Gulf of Mexico should monitor the progress of

Nate.

For storm information specific to your area in the United States,

including possible inland watches and warnings, please monitor

products issued by your local National Weather Service forecast

office. For storm information specific to your area outside the

United States, please monitor products issued by your national

meteorological service.

DISCUSSION AND 48-HOUR OUTLOOK

------------------------------

At 700 PM CDT (0000 UTC), the center of Tropical Storm Nate was

located by NOAA and Air Force Reserve Hurricane Hunter planes near

latitude 21.4 North, longitude 85.9 West. Nate is moving toward the

north-northwest near 22 mph (35 km/h), and this motion is expected

to continue through Saturday, with a turn toward the north and

northeast expected Saturday night and Sunday. On the forecast

track, the center of Nate will move near the northeastern coast of

the Yucatan peninsula this evening. Nate will then move into the

southern Gulf of Mexico tonight, approach the northern Gulf coast

Saturday, and then make landfall over the northern Gulf coast

Saturday night or Sunday.

Reports from the reconnaissance planes indicate that maximum

sustained winds have increased to near 65 mph (100 km/h) with higher

gusts. Additional strengthening is forecast during the next 36

hours, and Nate is expected to become a hurricane by the time it

reaches the northern Gulf of Mexico.

Tropical-storm-force winds extend outward up to 125 miles (205 km)

mainly to the east of the center.

The minimum central pressure based on data from the aircraft is 990

mb (29.23 inches).

HAZARDS AFFECTING LAND

----------------------

RAINFALL: Nate is expected to produce the following rain

accumulations through Monday:

Western Nicaragua, Honduras, and El Salvador: Lingering inflow bands

will bring additional 2-4 inches, max 6 inches.

Eastern Yucatan and western Cuba: 2 to 4 inches, max 6 inches.

Eastern Belize and the Cayman Islands: 1 to 3 inches.

East of the Mississippi River from the central Gulf Coast into the

Deep South, eastern Tennessee Valley, and southern Appalachians:

3 to 6 inches, max 10 inches.

Across the lower Ohio Valley into the central Appalachians:

2 to 4 inches, max 6 inches.

Heavy rainfall will occur over a wide area, including locations well

away from the center along the Pacific coast of Central America.

Rainfall across all of these areas may produce life-threatening

flash floods and mudslides.

WIND: Hurricane conditions are possible within the hurricane watch

area in Mexico tonight, with tropical storm conditions expected

during the next few hours. Tropical storm conditions are expected

in the warning area in Cuba tonight, and are possible in the

watch area in Cuba tonight.

Along the northern Gulf Coast, hurricane conditions are expected in

the hurricane warning area Saturday night, with tropical storm

conditions expected by late Saturday. Tropical storm conditions are

expected in the tropical storm warning area by Saturday night.

Hurricane conditions are possible in the hurricane watch area

Saturday night, and tropical storm conditions are possible in the

tropical storm watch area Saturday night and Sunday.

STORM SURGE: In the United States, 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 is expected to reach the following heights

above ground if the peak surge occurs at the time of high tide...

Morgan City, Louisiana to the mouth of the Mississippi River...4 to

6 ft

Mouth of the Mississippi River to the Alabama/Florida border...5 to

8 ft

Alabama/Florida border to the Okaloosa/Walton County Line...4 to 6

ft

Okaloosa/Walton County Line to Indian Pass, Florida...2 to 4 ft

Indian Pass to Crystal River, Florida...1 to 3 ft

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 destructive 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.

In Mexico, a storm surge will raise water levels by as much as 1

to 3 feet above normal tide levels along the immediate coast in

areas of onshore winds on the Yucatan Peninsula and the adjacent

islands. Near the coast, the surge will be accompanied by large and

destructive waves.

SURF: Swells generated by Nate will affect land areas around the

northwestern Caribbean during the next day or so. These swells are

likely to cause life-threatening surf and rip current conditions.

Please consult products from your local weather office.

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