[Tropical] Tropical Weather Discussion

[EMWIN Server]

AXNT20 KNHC 260523
TWDAT

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
205 AM EDT FRI MAR 26 2010

TROPICAL WEATHER DISCUSSION FOR NORTH AMERICA...CENTRAL
AMERICA...GULF OF MEXICO...CARIBBEAN SEA...NORTHERN SECTIONS
OF SOUTH AMERICA...AND ATLANTIC OCEAN TO THE AFRICAN COAST
FROM THE EQUATOR TO 32N. THE FOLLOWING INFORMATION IS BASED
ON SATELLITE IMAGERY...METEOROLOGICAL ANALYSIS...WEATHER
OBSERVATIONS...AND RADAR.

BASED ON 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH
0345 UTC...

...ITCZ...

ITCZ AXIS IS ANALYZED ALONG 11N15W 3N22W CROSSING THE EQUATOR
NEAR 29W TO INLAND OVER SOUTH AMERICA NEAR 3S42W. SCATTERED
MODERATE/ISOLATED STRONG CONVECTION IS WITHIN A 60 NM RADIUS OF
5.5N14W.

...DISCUSSION...

GULF OF MEXICO...
AS OF 26/0300 UTC...A COLD FRONT ENTERS THE GULF FROM A 1008 MB
LOW OVER THE FLORIDA/ALABAMA BORDER NEAR 31N87W EXTENDING S
ALONG 26N89W 21N93W TO THE COAST OF MEXICO NEAR 18N93W.
SCATTERED SHOWERS/THUNDERSTORMS ARE WELL E OF THE FRONT WITHIN
30/45 NM OF LINE FROM 26N87W TO OVER THE FLORIDA PENINSULA NEAR
TAMPA. SCATTERED SHOWERS AND POSSIBLE ISOLATED THUNDERSTORMS ARE
S OF 27N E OF 88W TO OVER S FLORIDA AND THROUGH THE FLORIDA
STRAITS. OVERCAST LOW/MID CLOUDS WITH POSSIBLE ISOLATED SHOWERS
ARE WITHIN 120 NM W OF THE FRONT S OF 22N INTO THE BAY OF
CAMPECHE. AN UPPER TROUGH SUPPORTING THE FRONT COVERS THE GULF N
OF 24N WITH THE UPPER LOW OVER E TENNESSEE. STRONG SUBSIDENCE
AND DRY STABLE ALOFT COVERS THE NE GULF BEHIND THE FRONT GIVING
REMAINDER OF THE AREA CLEAR SKIES TONIGHT.

CARIBBEAN SEA...
A BROAD UPPER RIDGE COVERS THE AREA ANCHORED IN THE CENTRAL
CARIBBEAN NEAR 16N75W PROVIDING STRONG SUBSIDENCE AND DRY AIR
ALOFT ACROSS THE ENTIRE BASIN AS NOTED ON WATER VAPOR IMAGERY.
FRESH TO STRONG EASTERLY TRADE WINDS CONTINUE ACROSS THE BASIN
WITH ISOLATED PATCHES OF BROKEN/OVERCAST LOW CLOUDS AND POSSIBLE
ISOLATED SHOWERS N OF 18N FROM 70W-80W. OTHERWISE MOSTLY CLEAR
SKIES AND FAIR WEATHER DOMINATE REMAINDER OF THE CARIBBEAN.

ATLANTIC OCEAN...
SCATTERED SHOWERS/ISOLATED THUNDERSTORMS ARE OVER THE FAR W ATLC
W OF A LINE FROM NEAR DAYTONA BEACH FLORIDA TO BEYOND 32N78W
ASSOCIATED WITH A COLD FRONT CURRENTLY IN THE GULF OF MEXICO.
A DEEP LAYERED RIDGE COVERS ALL OF THE W ATLC WITH THE SURFACE
RIDGE ANCHORED BY A 1022 MB HIGH NEAR BERMUDA AND THE UPPER
RIDGE AXIS EXTENDING FROM THE CARIBBEAN ACROSS HISPANIOLA TO
BEYOND 32N66W. A WEAK COLD FRONT ENTERS THE CENTRAL ATLC NEAR
32N46W EXTENDING SW TO 27N54W WITH THE UPPER LEVEL SUPPORT N OF
31N. SCATTERED SHOWERS/ISOLATED THUNDERSTORMS ARE WITHIN 90 NM E
OF THE FRONT N OF 28N. A MID TO LOW LEVEL ROTATION IS OBSERVED
IN THE CLOUD PATTERN ON SATELLITE IMAGERY WITH A SURFACE TROUGH
26N50W TO 20N47W. A SURFACE RIDGE DOMINATES THE REMAINDER OF THE
ATLC ANCHORED BY A 1023 MB HIGH NEAR 31N30W GIVING THE REMAINDER
OF THE AREA FAIR WEATHER TONIGHT.

FOR ADDITIONAL INFORMATION PLEASE VISIT
HTTP://WWW.HURRICANES.GOV/MARINE

$$
WALLACE





This weather bulletin was brought to you by:
www.nashvilleweather.net