[Tropical] Tropical Weather Discussion

[EMWIN Server]

AXNT20 KNHC 081738
TWDAT

TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
205 PM EDT SUN APR 8 2012

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 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH
1715 UTC.

...ITCZ/MONSOON TROUGH...

THE MONSOON TROUGH EXTENDS ACROSS AFRICA TO THE COAST OF SIERRA
LEONE NEAR 8N12W AND CONTINUES TO 2N18W. THE ITCZ EXTENDS FROM
2N18W TO 2N30W TO THE COAST OF BRAZIL AT EQ48W. SCATTERED
MODERATE TO ISOLATED STRONG CONVECTION IS FROM 2N-6N BETWEEN
10W-20W. SCATTERED MODERATE CONVECTION IS FROM 1N-3N BETWEEN
44W-52W.

...DISCUSSION...

GULF OF MEXICO...
A 1024 MB HIGH IS CENTERED OVER S GEORGIA NEAR 32N83W PRODUCING
10-15 KT EASTERLY FLOW OVER THE GULF OF MEXICO. A SURFACE TROUGH
IS OVER THE E GULF ALONG 28N86W 25N86W 24N85W MOVING W AT
5-10 KT. A THIN LINE OF SCATTERED SHOWERS ARE NOTED ON SATELLITE
IMAGERY ALONG THE TROUGH AXIS. ANOTHER SURFACE TROUGH IS OVER
THE EASTERN BAY OF CAMPECHE AND S MEXICO ALONG 21N91W 16N93W.
ISOLATED MODERATE CONVECTION IS W OF THE TROUGH AXIS FROM
17N-20N BETWEEN 94W-97W. SCATTERED MODERATE CONVECTION IS NEAR
TAMPICO MEXICO FROM 20N-23N BETWEEN 96W-98W. AN AREA OF
SCATTERED SHOWERS ARE FURTHER N ALONG THE COAST OF S TEXAS AND
NE MEXICO FROM 23N-27N BETWEEN 93W-98W. IN THE UPPER LEVELS...NW
UPPER LEVEL FLOW WITH MOSTLY SUBSIDENCE IS NOTED. EXPECT A WEAK
FRONTAL BOUNDARY TO BE OVER THE NORTHERN GULF STATES IN 24 HOURS
TO BE FOLLOWED WITH A 1021 MB HIGH OVER S TEXAS.

CARIBBEAN SEA...
THE TAIL END OF A STATIONARY FRONT EXTENDS FROM N HISPANIOLA TO
E CUBA ALONG 21N70W 19N77W. SCATTERED SHOWERS ARE WITHIN 60 NM
OF THE FRONT. A RELATIVELY LAX SURFACE PRESSURE AREA IS OVER THE
CARIBBEAN PRODUCING 10-15 KT TRADEWINDS WITH STRONGEST WINDS
ALONG THE COAST OF N COLOMBIA. IN THE UPPER LEVELS ZONAL FLOW
PREVAILS. A BAND OF UPPER LEVEL MOISTURE EXTENDS FROM THE
EASTERN PACIFIC TO S OF HONDURAS TO THE LEEWARD ISLANDS.
EXPECT...ADDITIONAL SHOWERS OVER THE LEEWARD ISLANDS OVER THE
NEXT 24 HOURS.

ATLANTIC OCEAN...
A COLD FRONT EXTENDS FROM 30N57W TO N HISPANIOLA ALONG 23N63W
21N70W. ISOLATED MODERATE CONVECTION IS E OF THE FRONT FROM
26N-32N BETWEEN 55W-58W. SCATTERED SHOWERS ARE WITHIN 60 NM OF
THE REMAINDER OF THE FRONT. A 1032 MB HIGH IS CENTERED NEAR
42N33W WITH A SURFACE RIDGE AXIS TO 25N50W PRODUCING FAIR
WEATHER. A 1013 MB LOW IS CENTERED OVER THE E ATLANTIC NEAR
36N19W. A SURFACE TROUGH EXTENDS S FROM THE LOW TO THE CANARY
ISLANDS NEAR 27N16W WITH A BAND OF SHOWERS. IN THE UPPER
LEVELS... THE BASE OF AN UPPER LEVEL TROUGH IS OVER THE W
ATLANTIC N OF 25N BETWEEN 60W-80W SUPPORTING THE SURFACE FRONT.
AN UPPER LEVEL LOW IS CENTERED OVER THE E ATLANTIC NEAR 25N17W
SUPPORTING THE E ATLANTIC SURFACE FEATURE. EXPECT...THE FRONT TO
BECOME STATIONARY OVER THE NEXT 24 HOURS WITH CONVECTION.

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

$$
FORMOSA







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