[Tropical] Tropical Weather Discussion

[EMWIN Server]

AXNT20 KNHC 092348
TWDAT

TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
805 PM EDT TUE APR 09 2013

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...WEATHER OBSERVATIONS...RADAR...AND METEOROLOGICAL
ANALYSIS.

BASED ON 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH
2315 UTC.

...ITCZ/MONSOON TROUGH...

THE MONSOON TROUGH EXTENDS FROM THE COAST OF SIERRA LEONE NEAR
8N13W TO 4N17W. THE INTERTROPICAL CONVERGENCE ZONE EXTENDS FROM
4N17W TO 1N30W TO THE COAST OF BRAZIL NEAR 3S40W. SCATTERED
MODERATE TO ISOLATED STRONG CONVECTION IS S OF THE MONSOON
TROUGH AND S OF GHANA FROM 1N-4N BETWEEN 1W-6W. ISOLATED
MODERATE CONVECTION IS ALONG THE ITCZ FROM 2N-4N BETWEEN

...DISCUSSION...

GULF OF MEXICO...

A 1026 MB HIGH CENTERED OVER THE W ATLANTIC NEAR 32N70W IS
PRODUCING 15-20 KT SW RETURN FLOW OVER THE GULF OF MEXICO. RADAR
IMAGERY SHOWS SCATTERED SHOWERS ALONG THE COAST OF E TEXAS AND
LOUISIANA N OF 28N BETWEEN 91W-96W. MOSTLY FAIR WEATHER IS OVER
THE REMAINDER OF THE GULF. IN THE UPPER LEVELS...AN UPPER LEVEL
TROUGH IS OVER TEXAS... WHILE AN UPPER LEVEL RIDGE IS OVER THE
GULF WITH AXIS ALONG 85W. EXPECT IN 24 HOURS FOR A COLD FRONT TO
BE ALONG THE COAST OF TEXAS WITH FRESH TO STRONG WINDS AHEAD AND
BEHIND THE FRONT...AND CONVECTION. ALSO EXPECT SCATTERED SHOWERS
TO BE OVER THE STRAITS OF FLORIDA AND ALONG THE COAST OF W CUBA.

CARIBBEAN SEA...

15-30 KT TRADEWINDS ARE OVER THE CARIBBEAN SEA WITH STRONGEST
WINDS ALONG THE COAST OF COLOMBIA. A 1004 MB LOW IS CENTERED
OVER N COLOMBIA NEAR 7N74W WITH ISOLATED MODERATE CONVECTION
INLAND. SCATTERED MODERATE CONVECTION IS OVER THE HIGHER
ELEVETIONS OF CUBA BETWEEN 77W-82W. SCATTERED SHOWERS ARE OVER
THE HIGHER ELEVATIONS OF PUERTO RICO...HISPANIOLA...AND JAMAICA.
MORE SHOWERS ARE E OF THE LEEWARD ISLANDS NEAR 18N61W. IN THE
UPPER LEVELS...AN UPPER LEVEL RIDGE OVER CENTRAL AMERICA IS
PRODUCING WNW UPPER LEVEL WINDS OVER THE CARIBBEAN SEA. EXPECT
LITTLE CHANGE OVER THE NEXT 24 HOURS...WITH CONVECTION OVER CUBA
TO CONTINUE.

ATLANTIC OCEAN...

A 1026 MB HIGH CENTERED OVER THE W ATLANTIC NEAR 32N70W. A COLD
FRONT IS OVER THE CENTRAL ATLANTIC FROM 32N40W TO 25N52W. A
STATIONARY FRONT CONTINUES FROM 25N52W TO N OF PUERTO RICO AT
22N67W. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS ARE WITHIN
90 NM OF THE FRONTS. A 1021 MB HIGH IS OVER THE E ATLANTIC NEAR
27N32W MOVING ENE. OF NOTE IN THE UPPER LEVELS...AN UPPER LEVEL
TROUFG IS OVER THE CENTRAL ATLANTIC N OF 15N BETWEEN 40W-70W
SUPPORTING THE CENTRAL ATLANTIC FRONTAL SYSTEM. EXPECT IN 24
HOURS FOR SCATTERED SHOWERS TO BE OVER THE BAHAMAS. ALSO EXPECT
THE COLD FRONT TO CONTINUE TO MOVE E WITH SHOWERS AND
CONVECTION.

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

$$
FORMOSA


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