Gabrielle

Tropicial cyclone archives of the 2007 Atlantic hurricane season
Post Reply
User avatar
Caribbean Traveler
Site Admin
Site Admin
Posts: 3663
Joined: Tue Feb 20, 2007 2:28 pm
Antispam: no
Location: Under a palm tree
Contact:

Gabrielle

Post by Caribbean Traveler » Sat Sep 08, 2007 1:38 am

Saturday Early AM Update

NHC decided to call the unorganized convection off the southeast coast subtropical storm Gabrielle as of late Friday evening.

Most models take a weak system toward the N.C. coast by midday Sunday. At this time the main impact will be high surf with some beach erosion.

With Gabrielle being a subtropical storm, do not focus on the center of circulation much. The area of disturbed weather can be many miles away.

The satellite imagery indicates the area of showers closest to the coast are under an upper air low....not very conducive for development. The low level center is farther west. By late morning we will be able to tell if the low level characteristics are getting better organized with the Vis satellite.
Rich Johnson
Twitter: https://twitter.com/richjohnsonwx
Certified Broadcast Meteorologist - Hurricane Expert

User avatar
Caribbean Traveler
Site Admin
Site Admin
Posts: 3663
Joined: Tue Feb 20, 2007 2:28 pm
Antispam: no
Location: Under a palm tree
Contact:

Post by Caribbean Traveler » Sat Sep 08, 2007 12:03 pm

Saturday Afternoon Update
The latest visible satellite imagery indicates that Gabrielle is a very poorly organized system. It is moving slightly east of due north well off the coast. It is sheared badly with the convection on the west side closest to the coast.
Rich Johnson
Twitter: https://twitter.com/richjohnsonwx
Certified Broadcast Meteorologist - Hurricane Expert

User avatar
Caribbean Traveler
Site Admin
Site Admin
Posts: 3663
Joined: Tue Feb 20, 2007 2:28 pm
Antispam: no
Location: Under a palm tree
Contact:

Post by Caribbean Traveler » Sat Sep 08, 2007 10:32 pm

Saturday Late Evening Update
Gabrielle morphed from subtropical to tropical today. Friday night the convection was a widespread arc from the upper low to the west, to a good three or four hundred miles eastward. Today Gabrielle acquired tropical characteristics in which the convection is now located near the surface low itself. It is still a sheared system in which most of the convection is on the western one half of the storm. A couple of rain bands are now offshore of Cape Hatteras southward past Morehead City.

The models have been handling the track very consistently now for a few days. The low should pass close to the Outer Banks then gradually recurve out to sea.
Rich Johnson
Twitter: https://twitter.com/richjohnsonwx
Certified Broadcast Meteorologist - Hurricane Expert