[Tropical] Tropical Weather Discussion

[EMWIN Server]

AXNT20 KNHC 222348
TWDAT

TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
805 PM EDT FRI APR 22 2016

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 ACROSS W AFRICA INTO THE E TROPICAL
ATLC NEAR 10N14W TO 6N18W WHERE THE ITCZ BEGINS AND CONTINUES TO
3N30W TO 2N40W TO THE COAST OF SOUTH AMERICA NEAR 1N50W.
SCATTERED MODERATE CONVECTION IS FROM 2N-2S BETWEEN 36W-40W.

...DISCUSSION...

GULF OF MEXICO...

AS OF 2100 UTC...A COLD FRONT EXTENDS FROM MOBILE ALABAMA TO
BEYOND BROWNSVILLE TEXAS. THE FRONT IS BASICALLY VOID OF
PRECIPITATION. A PREFRONTAL TROUGH EXTENDS FROM TALLAHASSEE
FLORIDA TO THE NE GULF OF MEXICO NEAR 26N87W. SCATTERED MODERATE
CONVECTION IS WITHIN 45 NM OF THE TROUGH. SCATTERED MODERATE
CONVECTION IS ALSO INLAND OVER THE ENTIRE FLORIDA PENINSULA...
CENTRAL AND WESTERN CUBA...AND N YUCATAN PENINSULA. IN THE UPPER
LEVELS...ZONAL FLOW IS OVER THE W GULF...WHILE UPPER LEVEL
DIFFLUENCE IS OVER FLORIDA ENHANCING CONVECTION. EXPECT IN 24
HOURS FOR THE COLD FRONT TO EXTEND FROM THE W ATLANTIC AT 30N77W
TO S FLORIDA WITH SHOWERS E OF FRONT.

CARIBBEAN SEA...

A 1008 MB LOW IS CENTERED OVER N COLOMBIA NEAR 10N75W. SCATTERED
MODERATE CONVECTION IS OVER N COLOMBIA FROM 7N-12N BETWEEN 72W-
75W. 10-25 KT TRADEWINDS ARE OVER THE CARIBBEAN WITH STRONGEST
WINDS OVER THE CENTRAL CARIBBEAN S OF JAMAICA. SCATTERED
MODERATE CONVECTION IS OVER JAMAICA AND W HAITI FROM 17N-20N
BETWEEN 73W-81W. FURTHER S... SCATTERED MODERATE CONVECTION IS E
OF NICARAGUA FROM 13N-15N BETWEEN 77W-80W... AND INLAND OVER
COSTA RICA. IN THE UPPER LEVELS...AN UPPER LEVEL TROUGH IS OVER
THE W CARIBBEAN W OF 75W. AN UPPER LEVEL RIDGE IS OVER THE E
CARIBBEAN WITH FLOW FROM THE SW. EXPECT LITTLE CHANGE OVER THE
NEXT 24 HOURS.

HISPANIOLA...

PRESENTLY SCATTERED MODERATE CONVECTION IS OVER W HAITI AND
SCATTERED SHOWERS ARE OVER THE REMAINDER OF THE ISLAND.
AVAILABLE MOISTURE COMBINED WITH THE LOCAL EFFECTS WILL PROMOTE
MORE PRECIPITATION OVER THE NEXT 24 HOURS.

ATLANTIC OCEAN...

A 1023 MB HIGH IS OVER THE W ATLANTIC NEAR 30N67W. SCATTERED
SHOWERS WITH ISOLATED THUNDERSTORMS ARE OVER THE SOUTHERN
BAHAMAS FROM 20N-23N BETWEEN 70W-75W. A COLD FRONT EXTENDS FROM
THE CENTRAL ATLANTIC AT 30N34W TO 22N50W TO THE W ATLANTIC AT
21N60W. SCATTERED SHOWERS ARE WITHIN 90 NM E OF THE FRONT. A
1021 MB HIGH IS CENTERED OVER THE E ATLANTIC NEAR 26N28W. EXPECT
IN 24 HOURS FOR A NEW COLD FRONT TO BE OVER THE W ATLANTIC. ALSO
EXPECT THE CENTRAL ATLANTIC COLD FRONT TO MOVE E TO 30N24W WITH
SHOWERS.

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

$$
FORMOSA
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