[Tropical] Tropical Weather Discussion

[EMWIN Server]

AXNT20 KNHC 072347
TWDAT

TROPICAL WEATHER DISCUSSION...CORRECTION
NWS NATIONAL HURRICANE CENTER MIAMI FL
705 PM EST MON JAN 07 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 LIBERIA AT 6N11W TO 6N13W. THE
INTERTROPICAL CONVERGENCE ZONE AXIS EXTENDS FROM 6N13W TO 2N30W
TO 1N44W TO BRAZIL AT EQ49W. ISOLATED MODERATE CONVECTION FROM
1N-4N BETWEEN 10W-48W.

...DISCUSSION...

THE GULF OF MEXICO...
THE TAIL END OF A COLD FRONT IS OVER S FLORIDA FROM 27N80W TO
25N82W. SCATTERED SHOWERS ARE OVER S FLORIDA S OF 27N. RADAR
IMAGERY ALSO SHOWS ISOLATED SHOWERS OVER NORTH AND CENTRAL
FLORIDA. THE GULF OF MEXICO HAS MOSTLY 15-20 KT EASTERLY SURFACE
WINDS. SCATTERED TO BROKEN LOW CLOUDS ARE OVER MOST OF THE GULF.
IN THE UPPER LEVELS...A SHORTWAVE TROUGH IS OVER THE GULF WITH
MOSTLY WESTERLY FLOW. UPPER LEVEL MOISTURE IS OVER MOST OF THE
GULF WHILE BROKEN HIGH CLOUDS ARE NOTED OVER TEXAS AND THE NW
GULF. EXPECT IN 24 HOURS FOR A COLD FRONT TO BE INLAND OVER S
TEXAS WITH SHOWERS AND CONVECTION OVER THE NW GULF.

THE CARIBBEAN SEA...
10-25 KT TRADEWINDS ARE OVER THE CARIBBEAN SEA WITH LIGHTEST
WINDS OVER THE NW CARIBBEAN. ISOLATED MODERATE CONVECTION IS
OVER BELIZE...HONDURAS...AND N NICARAGUA. SCATTERED SHOWERS ARE
ALSO INLAND OVER S MEXICO AND GUATEMALA E OF 96W. MORE SHOWERS
ARE OVER HISPANIOLA...AND THE E CARIBBEAN E OF 73W. IN THE UPPER
LEVELS... AN UPPER LEVEL RIDGE IS OVER THE CARIBBEAN WITH AXIS
ALONG 60W. STRONG SUBSIDENCE IS OVER THE CARIBBEAN EXCEPT OVER
THE NW CARIBBEAN. EXPECT OVER THE NEXT 24 HOURS FOR MORE
PRECIPITATION TO BE OVER THE W CARIBBEAN.

THE ATLANTIC OCEAN...
A COLD FRONT EXTENDS OVER THE W ATLANTIC FROM 32N64W TO S
FLORIDA AT 27N80W. SCATTERED SHOWERS ARE WITHIN 90 NM OF THE
FRONT. A 1023 MB HIGH IS OVER THE CENTRAL ATLANTIC NEAR 28N56W.
ANOTHER 1026 MB HIGH IS OVER THE E ATLANTIC NEAR 34N36W. A COLD
FRONT IS OVER THE E ATLANTIC FROM 32N23W TO 23N40W. OVERCAST
MULTILAYERED CLOUDS WITH WIDELY SCATTERED MODERATE CONVECTION
ARE E OF THE FRONT OVER THE CANARY ISLANDS. SCATTERED SHOWERS
ARE WITHIN 30 NM OF THE REMAINDER OF THE FRONT. EXPECT IN 24
HOURS FOR A COLD FRONT TO EXTEND FROM 35W TO 65W ALONG 29N WITH
CONVECTION.

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

$$
FORMOSA





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