Hurricane Dorian Intermediate Advisory Number 52A

NWS National Hurricane Center Miami FL       AL052019

800 AM EDT Fri Sep 06 2019

 

SUMMARY OF 800 AM EDT...1200 UTC...INFORMATION

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LOCATION...35.2N 75.7W

ABOUT 10 MI...15 KM WSW OF CAPE HATTERAS NORTH CAROLINA

MAXIMUM SUSTAINED WINDS...90 MPH...150 KM/H

PRESENT MOVEMENT...NE OR 50 DEGREES AT 14 MPH...22 KM/H

MINIMUM CENTRAL PRESSURE...956 MB...28.23 INCHES

 

WATCHES AND WARNINGS

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CHANGES WITH THIS ADVISORY:

 

The Hurricane Warning and the Tropical Storm Warning have been discontinued west of Surf City, North Carolina.

 

The Storm Surge Warning south of Salter Path, North Carolina has been discontinued.

 

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

 

A Storm Surge Warning is in effect for...

* Salter Path NC to Poquoson VA

* Pamlico and Albemarle Sounds

* Neuse and Pamlico Rivers

* Hampton Roads

 

A Hurricane Warning is in effect for...

* Surf City to the North Carolina/Virginia border

* Pamlico and Albemarle Sounds

 

A Hurricane Watch is in effect for...

* Nova Scotia

 

A Tropical Storm Warning is in effect for...

* North Carolina/Virginia border to Fenwick Island DE

* Chesapeake Bay from Drum Point southward

* Tidal Potomac south of Cobb Island

* Woods Hole to Sagamore Beach MA

* Nantucket and Martha's Vineyard MA

 

A Tropical Storm Watch is in effect for...

* Prince Edward Island

* Magdalen Islands

* Fundy National Park to Shediac

* Francois to Boat Harbour

 

Interests elsewhere along the Mid-Atlantic and New England coasts of the United States should monitor the progress of Dorian.

 

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At 800 AM EDT (1200 UTC), the center of Hurricane Dorian was located near latitude 35.2 North, longitude 75.7 West. Dorian is moving toward the northeast near 14 mph (22 km/h) and this general motion with an increase in forward speed is expected through Saturday. On the forecast track, the center of Dorian will move near or over the coast of North Carolina during the next few hours. The center should move to the southeast of extreme southeastern New England tonight and Saturday morning, and then across Nova Scotia late Saturday or Saturday night.

 

Maximum sustained winds are near 90 mph (150 km/h) with higher gusts. Dorian should remain a powerful hurricane as it moves near or along the coast of North Carolina during the next few hours.

Dorian is forecast to become a post-tropical cyclone with hurricane-force winds by Saturday night as it approaches Nova Scotia.

 

Hurricane-force winds extend outward up to 45 miles (75 km) from the center and tropical-storm-force winds extend outward up to 220 miles (350 km). A Weatherflow station at Buxton, North Carolina, recently reported a sustained wind of 67 mph (107 km/h) and a gust to 85 mph (145 km/h).

 

The estimated minimum central pressure based on data from the Air Force Hurricane Hunters and surface observations is 956 mb (28.23 inches). An automated station in Ocracoke recently reported a

pressure of 960.4 mb (28.36 inches).

 

 

HAZARDS AFFECTING LAND

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WIND: Hurricane conditions should continue along portions of the North Carolina coast for the next few hours. Tropical storm conditions are spreading onto the Virginia coast in the warning area.

 

Tropical storm conditions are expected elsewhere in the Tropical Storm Warning area in the Mid-Atlantic states later today and over portions of extreme southeastern Massachusetts tonight or early

Saturday.

 

Hurricane conditions are possible in Nova Scotia on Saturday.

 

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...

 

Salter Path to Duck NC, including Pamlico and Albemarle Sounds and the Neuse and Pamlico Rivers...4 to 7 ft

Duck NC to Poquoson VA, including Hampton Roads...2 to 4 ft

 

Water levels could begin to rise well in advance of the arrival of strong winds. The surge will be accompanied by large and destructive waves. Surge-related flooding depends on the how close

the center of Dorian comes to the coast, 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.

 

RAINFALL: Dorian is expected to produce the following rainfall totals through Saturday.

 

Northeastern North Carolina...Additional 3 to 8 inches, isolated storm totals 15 inches.

Far southeast Virginia...3 to 8 inches.

Extreme southeastern New England...2 to 4 inches.

Nova Scotia and Prince Edward Island...3 to 5 inches.

Newfoundland...1 to 2 inches.

 

This rainfall may cause life-threatening flash floods

 

SURF: Large swells will affect much of the southeastern United States coast from northern Florida through North Carolina 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.

 

TORNADOES: A few tornadoes are possible this morning across eastern North Carolina into Southeastern Virginia.