[Tropical] Tropical Weather Discussion

[EMWIN Server]

AXNT20 KNHC 131147
TWDAT

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
705 AM EST SAT MAR 13 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 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH
1115 UTC.

...ITCZ...

ITCZ AXIS IS CENTERED ALONG 7N10W 3N32W 2N45W ACROSS THE EQUATOR
AND INLAND OVER SOUTH AMERICA NEAR 50W. SCATTERED MODERATE/
ISOLATED STRONG CONVECTION IS FROM 3N-7N BETWEEN 10W-15W
INCLUDING THE COAST OF LIBERIA WITH CLUSTERS OF SIMILAR
CONVECTION 150 NM OF LINE FROM THE ITCZ NEAR 3N33W TO 7N43W.

...DISCUSSION...

GULF OF MEXICO...
LOW PRESSURE REMAINS IN CONTROL OF THE ENTIRE GULF WITH A COLD
FRONT OVER THE FLORIDA PANHANDLE FROM JUST OFF THE COAST OF
JACKSONVILLE JUST W OF LAKE OKEECHOBEE ACROSS THE MIDDLE
FLORIDA KEYS TO OVER CUBA NEAR 23N82W INTO THE NW CARIBBEAN.
FRONT IS SUPPORTED BY A LARGE UPPER TROUGH/LOW CENTERED OVER THE
CENTRAL MISSISSIPPI VALLEY COVERING THE GULF N OF 22N. ALL OF
THE SEVERE WEATHER ASSOCIATED WITH THE FRONT IS IN THE W ATLC
WITH ISOLATED SHOWERS OVER THE SE GULF AND INTO THE FLORIDA
STRAITS WITHIN 45 NM OF LINE FROM 23N86W TO 25N80W. A JETSTREAM
WITH WINDS OF 90 TO 150 KT COVERS THE GULF N OF 21N. SKIES ARE
REMARKABLY CLEAR BEHIND THE COLD FRONT WITH THE EXCEPTION OF
OVERCAST LOW CLOUDS AND PATCHES OF FOG OVER THE E BAY OF
CAMPECHE S OF 19N E OF 93W.

CARIBBEAN SEA...
THE COLD FRONT ENTERS THE CARIBBEAN THROUGH THE FLORIDA STRAITS
OVER CUBA NEAR 22N81W EXTENDING S TO OVER CENTRAL HONDURAS TO
14N87W. SCATTERED SHOWERS ARE OVER THE GULF OF HONDURAS S OF 18N
W OF THE FRONT TO INLAND OVER CENTRAL AMERICA. ISOLATED SHOWERS
ARE WITHIN 200 NM E OF THE FRONT N OF 17N. DRY STABLE AIR ARE
GIVING THE REMAINDER OF THE CARIBBEAN FAIR WEATHER AGAIN THIS
MORNING.

ATLANTIC OCEAN...
LOW PRESSURE DOMINATES THE FAR W ATLC WITH A COLD FRONT
EXTENDING ALONG THE COAST OF GEORGIA TO INLAND OVER THE FLORIDA
PENINSULA S OF JACKSONVILLE WITH CLUSTERS OF SCATTERED SHOWERS/
THUNDERSTORMS ARE FROM 24N-30N BETWEEN 68W-79W INCLUDING THE N
BAHAMA ISLANDS. SURFACE RIDGE IS OVER THE REMAINDER OF THE W
ATLC INTO THE CENTRAL ATLC ANCHORED BY A 1025 MB HIGH 600 NM E
OF BERMUDA NEAR 34N53W. A DEEP LAYER TROUGH COVERS THE REMAINDER
OF THE CENTRAL ATLC N OF 18N FROM 35W-60W SUPPORTING A
STATIONARY FRONT THAT ENTERS THE E ATLC NEAR 32N28W ALONG 21N40W
TO E OF THE LEEWARD ISLANDS NEAR 15N60W. SCATTERED SHOWERS AND
POSSIBLE ISOLATED THUNDERSTORMS ARE WITHIN 120 NM EITHER SIDE OF
THE FRONT N OF 25N. A WEAK SURFACE RIDGE IS OVER THE REMAINDER
OF THE E ATLC EXTENDING OVER CANARY ISLANDS TO W OF THE CAPE
VERDE ISLANDS NEAR 15N29W.

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

$$
WALLACE






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