Nestor Starting To Lose Its Tropical Characteristics

WINDS AND STORM SURGE SHOULD BE AFFECTING MUCH OF THE GULF COAST OF FLORIDA.
NESTOR GRADUALLY LOSING ITS TROPICAL CHARACTERISTICS.

SUMMARY OF 400 AM CDT…0900 UTC…INFORMATION

LOCATION…29.0N 86.0W
ABOUT 75 MI…125 KM SW OF APALACHICOLA FLORIDA
ABOUT 85 MI…135 KM SSW OF PANAMA CITY FLORIDA
MAXIMUM SUSTAINED WINDS…50 MPH…85 KM/H
PRESENT MOVEMENT…NE OR 45 DEGREES AT 17 MPH…28 KM/H
MINIMUM CENTRAL PRESSURE…998 MB…29.47 INCHES

WATCHES AND WARNINGS

CHANGES WITH THIS ADVISORY: The Tropical Storm Warning has been discontinued west of Okaloosa/Walton County line, Florida.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Tropical Storm Warning is in effect for…
* Okaloosa/Walton County line to Yankeetown Florida

A Storm Surge Warning is in effect for…
* Indian Pass Florida to Clearwater Beach Florida


DISCUSSION

Nestor is rapidly losing the few tropical characteristics that it once had. The cloud pattern consists of a large circulation of low clouds with a comma-shaped convective band well to the east of the circulation. This band is already over a large portion of the Florida peninsula. The center of the system or the area of minimum pressure could be anywhere within this gyre, and the precise location is uncertain. Surrounding data and ASCAT measurements suggest that the winds have decreased to 45 kt.

All indications are that no significant strengthening is anticipated before the broad circulation moves inland later today, and guidance suggests that Nestor will lose its tropical characteristics while moving across the southeastern United States. The weaker extratropical cyclone is expected to dissipate or merge with a cold front in about 4 days or sooner.

Since the center is not well defined, the initial motion is highly uncertain. It appears that cyclone has slowed down but it should resume a motion toward the northeast or 045 degrees at about 15 kt. Most of the track models are in good agreement that this general motion should continue, and the broad circulation will move inland over the Florida Panhandle later today and across portions of Georgia and the Carolinas later tonight and Sunday.

Given the non-tropical appearance of Nestor, dangerous storm surge and tropical-storm-force winds will occur along a large portion of the Florida Gulf Coast well east of the track of Nestor’s center today.


KEY MESSAGES

1. There is a danger of life-threatening storm surge inundation of up to 5 feet above ground level along the Florida Gulf Coast from Indian Pass to Clearwater Beach, where a Storm Surge Warning is in effect. Residents in these areas should follow the advice given by local officials.

2. Tropical-storm-force winds are spreading across portions of the Florida Gulf Coast, where tropical storm warnings are in effect. Regardless of the exact track and intensity of the system, these winds will cover a large area, especially east of the center.

3. Isolated flash flooding is possible across the southeastern United States into Sunday morning.

4. Wind and coastal flooding hazards along the U.S. East Coast will be covered by non-tropical watches and warnings issued by local NWS offices since the system is expected to lose its tropical characteristics after it moves inland along the Gulf Coast.

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