[Tropical] Tropical Weather Discussion

[EMWIN Server]

AXNT20 KNHC 282357
TWDAT

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
805 PM EDT SUN MAR 28 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 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH
2315 UTC...

...ITCZ...

ITCZ AXIS IS CENTERED FROM LIBERIA NEAR 6N10W TO 3N20W 1N30W
2N45W TO THE NE BRAZIL COASTLINE NEAR EQ50W. SCATTERED SHOWERS
ARE WITHIN 120 NM OF THE AXIS W OF 44W. IN ADDITION...WIDELY
SCATTERED MODERATE CONVECTION IS ALONG THE COAST OF BRAZIL FROM
EQ-2N BETWEEN 48W-50W.

...DISCUSSION...

GULF OF MEXICO...
AS OF 2100 UTC...A COLD FRONT EXTENDS FROM THE FLORIDA PANHANDLE
TO THE BAY OF CAMPECHE ALONG 30N87W 25N88W 20N92W 18N91W MOVING
E. A PREFRONTAL TROUGH EXTENDS FROM COCOA BEACH FLORIDA TO THE
SE GULF OF MEXICO ALONG 29N81W 25N85W MOVING E. SCATTERED
MODERATE CONVECTION IS FROM 25N-29N BETWEEN 80W-87W. BROKEN TO
OVERCAST LOW CLOUDS ALSO EXTEND 180 NM W OF THE COLD FRONT...AND
INLAND OVER MEXICO E OF THE SIERRA MADRE ORIENTAL MOUNTAINS.
FURTHER N... FAIR SKIES ARE OVER TEXAS AND THE TEXAS COAST.
15-20 KT NW WINDS ARE NOTED OVER THE NW GULF WHILE 15-20 KT SE
WINDS ARE OVER THE STRAITS OF FLORIDA. IN THE UPPER
LEVELS...ZONAL FLOW IS OVER THE GULF. STRONG SUBSIDENCE IS OVER
S TEXAS...THE COAST OF TEXAS ... AND OVER THE S GULF S OF 24N.
CONSIDERABLE UPPER LEVEL MOISTURE IS OVER FLORIDA AND THE
REMAINDER OF THE GULF. A 90-110 KT JETSTREAM IS OVER THE GULF N
OF 25N. EXPECT IN 24 HOURS FOR THE COLD FRONT TO EXTEND FROM THE
STRAITS OF FLORIDA TO THE GULF OF HONDURAS WITH RAIN AND
SHOWERS.

CARIBBEAN SEA...
A SURFACE TROUGH IS ALONG THE COAST OF NICARAGUA FROM 15N83W TO
10N83W. BROKEN LOW CLOUDS AND SCATTERED SHOWERS ARE FROM 13N-17N
BETWEEN 83W-85W. SIMILAR SHOWERS ARE OVER THE HIGHER ELEVATIONS
OF HISPANIOLA. MORE SHOWERS ARE OVER THE LEEWARD ISLANDS E OF
THE VIRGIN ISLANDS N OF 15N E OF 65W. MOSTLY FAIR WEATHER IS
OVER THE REMAINDER OF THE CENTRAL AMERICA AND THE CARIBBEAN SEA.
FRESH TO STRONG TRADEWINDS DOMINATE THE MAJORITY OF THE
CARIBBEAN WITH STRONGEST WINDS ALONG THE COAST OF N COLOMBIA. IN
THE UPPER LEVELS...ZONAL FLOW AND STRONG SUBSIDENCE COVERS THE
ENTIRE AREA. EXPECT IN 24 HOURS FOR THE COLD FRONT TO BE OVER W
CUBA...THE NW CARIBBEAN...AND THE YUCATAN PENINSULA WITH RAIN
AND SHOWERS.

ATLANTIC OCEAN...
PREFRONTAL SCATTERED MODERATE CONVECTION IS OVER CENTRAL FLORIDA
AND THE W ATLANTIC N OF 27N BETWEEN 78W-81W. A COLD FRONT IS
OVER THE CENTRAL ATLANTIC FROM 32N49W TO THE S BAHAMAS ALONG
26N53W 23N60W 21N70W. SCATTERED MODERATE CONVECTION IS N OF 24N
BETWEEN 45W-50W. SCATTERED SHOWERS ARE WITHIN 30 NM OF THE
REMAINDER OF THE FRONT. A 1022 MB HIGH IS CENTERED OVER THE
CENTRAL ATLANTIC NEAR 30N36W. A DISSIPATING STATIONARY FRONT IS
OVER THE E ATLANTIC FROM 32N20W TO 26N30W. SCATTERED SHOWERS ARE
WITHIN 30 NM OF THE FRONT. IN THE UPPER LEVELS... ZONAL FLOW IS
OVER THE W ATLANTIC W OF 40W. AN UPPER LEVEL TROUGH IS OVER THE
E ATLANTIC N OF 10N BETWEEN 10W-40W. AN UPPER LEVEL RIDGE IS
OVER W AFRICA. EXPECT IN 24 HOURS FOR...A W ATLANTIC COLD FRONT
TO EXTEND FROM 32N75W TO W CUBA WITH CONVECTION. GALE FORCE
WINDS WILL ALSO BE N OF 29N W OF THE FRONT. ALSO EXPECT THE
CENTRAL ATLANTIC COLD FRONT TO EXTEND FROM 32N40W TO 23N50W WITH
CONVECTION.

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

$$
FORMOSA








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