[Tropical] Tropical Weather Discussion

[EMWIN Server]

AXNT20 KNHC 250013
TWDAT

TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
805 PM EDT SUN APR 24 2011

TROPICAL WEATHER DISCUSSION FOR NORTH AMERICA...CENTRAL
AMERICA...GULF OF MEXICO...CARIBBEAN SEA...NORTHERN SECTION 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 ALONG 7N11W 3N20W EQ35W 3N51W. CLUSTERS OF
SCATTERED MODERATE TO ISOLATED STRONG CONVECTION ARE FROM EQ-7N
BETWEEN 6W-20W...FROM 1N-4N BETWEEN 20W-25W...AND FROM EQ-3N
BETWEEN 31W-36W. A 1009 MB LOW IS CENTERED OFF THE COAST OF
BRAZIL NEAR 5S32W. SCATTERED MODERATE TO ISOLATED STRONG
CONVECTION IS FROM 3S-7S BETWEEN 29W-34W.

...DISCUSSION...

GULF OF MEXICO...
10-20 KT SE RETURN FLOW DOMINATES FLORIDA AND THE GULF OF MEXICO
WITH STRONGEST WINDS OVER THE W GULF W OF 90W. SCATTERED
MODERATE CONVECTION IS OVER TAMPA FLORIDA FROM 27N-28N BETWEEN
82W-83W. WIDELY SCATTERED MODERATE CONVECTION IS INLAND OVER
VERACRUZ MEXICO FROM 18N-20N BETWEEN 96W-99W. SIMILAR CONVECTION
IS INLAND S OF CORPUS CHRISTI TEXAS FROM 28N-29N BETWEEN
97W-99W. FAIR WEATHER IS NOTED OVER THE MAJORITY OF THE GULF OF
MEXICO. IN THE UPPER LEVELS...A SHORT WAVE TROUGH IS OVER THE E
GULF E OF 90W WITH AXIS ALONG 84W. AN AREA OF UPPER LEVEL
MOISTURE AND SCATTERED HIGH CLOUD ARE OVER S TEXAS. STRONG
SUBSIDENCE IS OVER THE REMAINDER OF GULF. EXPECT OVER THE NEXT
24 HOURS FOR...CONTINUED SE SURFACE FLOW WITH MOSTLY FAIR
WEATHER. ALSO EXPECT THE UPPER LEVEL WIND FLOW TO BECOME ZONAL.

CARIBBEAN SEA...
10-20 KT TRADEWINDS ARE OVER THE CARIBBEAN SEA AND CENTRAL
AMERICA WITH HIGHEST WINDS ALONG THE COAST OF N COLOMBIA.
CLUSTERS OF SCATTERED MODERATE TO ISOLATED STRONG CONVECTION ARE
OVER N COLOMBIA AND NW VENEZUELA FROM 7N-12N BETWEEN 67W-76W.
ISOLATED MODERATE CONVECTION IS OVER W HONDURAS...GUATEMALA...
BELIZE...AND THE GULF OF HONDURAS FROM 14N-17N BETWEEN 87W-92W.
SCATTERED SHOWERS ARE OVER INLAND CUBA...HISPANIOLA...PUERTO
RICO...TRINIDAD...AND THE NETHERLANDS ANTILLES. MOSTLY FAIR
WEATHER IS OVER THE REMAINDER OF THE AREA. IN THE UPPER
LEVELS...ZONAL FLOW DOMINATES THE AREA. UPPER LEVEL MOISTURE
WITH BANDS OF SCATTERED HIGH CLOUDS ARE OVER THE SE CARIBBEAN S
OF 14N E OF 75W. STRONG SUBSIDENCE IS OVER THE W CARIBBEAN.
EXPECT MORE SHOWERS AND CONVECTION OVER THE S CARIBBEAN AND
CENTRAL AMERICA S OF 15N OVER THE NEXT 24 HOURS.

ATLANTIC OCEAN...
A 1027 MB HIGH IS CENTERED OVER THE W ATLANTIC NEAR 33N70W. A
SURFACE RIDGE AXIS EXTEND W TO E TEXAS. A WEAK 1014 MB LOW IS
CENTERED OVER THE S BAHAMAS NEAR 23N72W. A TIGHT SURFACE
GRADIENT N OF THE CENTER IS PRODUCING 25 KT WINDS. SCATTERED
SHOWERS ARE ALSO N OF THE CENTER. A SURFACE TROUGH IS OVER THE E
ATLANTIC FROM 30N30W TO 22N33W. SCATTERED SHOWERS ARE WITHIN 90
NM OF THE TROUGH. IN THE UPPER LEVELS...AN UPPER LEVEL LOW IS
OVER THE E ATLANTIC NEAR 35N34W SUPPORTING THE E ATLANTIC
SURFACE TROUGH. A 70 KT SUBTROPICAL JETSTREAM EXTENDS FROM THE
LEEWARD ISLANDS AT 20N60W TO W AFRICA AT 21N17W. EXPECT OVER THE
NEXT 24 HOURS FOR...THE SURFACE LOW CENTER TO TRACK W AND
DISSIPATE.

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

$$
FORMOSA



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