[Tropical] Tropical Weather Discussion

[EMWIN Server]

AXNT20 KNHC 110530
TWDAT

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
205 AM EDT SUN APR 11 2010

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

BASED ON 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH
0515 UTC...

...THE ITCZ...
THE ITCZ AXIS IS CENTERED ALONG 5N9W 3N23W EQ35W TO THE NE
BRAZIL COAST NEAR 1N50W. SCATTERED MODERATE TO STRONG CONVECTION
IS ALONG THE COAST OF WEST AFRICA FROM 1N-5N BETWEEN 8W-12W.
WIDELY SCATTERED MODERATE CONVECTION IS FROM 2N-5N BETWEEN
16W-21W...AND FROM 2S-2N BETWEEN 30W-40W.

...DISCUSSION...

GULF OF MEXICO...
AS OF 0300 UTC...A SURFACE TROUGH EXTENDS FROM THE YUCATAN
PENINSULA TO THE FLORIDA PANHANDLE ALONG 18N92W 28N85W. BROKEN
TO OVERCAST MULTILAYERED CLOUDS ARE OVER THE E GULF OF MEXICO E
OF 90W. SCATTERED SHOWERS ARE NOTED ON RADAR OVER THE CENTRAL
FLORIDA KEYS. ELSEWHERE...15-20 KT SE SURFACE FLOW WITH FAIR
WEATHER IS OVER THE W GULF. TEMPERATURES RANGE FROM THE 50'S
OVER THE N GULF STATES TO THE 70'S OVER S FLORIDA. IN THE UPPER
LEVELS...A SHORT WAVE TROUGH IS OVER THE E GULF MOVING QUICKLY E
SUPPORTING THE SURFACE TROUGH. SIGNIFICANT UPPER LEVEL MOISTURE
AND BROKEN TO OVERCAST HIGH CLOUDS ARE OVER THE E GULF E OF 90W.
STRONG SUBSIDENCE IS OVER THE W GULF. EXPECT...THE SHORT WAVE
TROUGH AND SURFACE TROUGH TO MOVE QUICKLY OVER FLORIDA OVER THE
NEXT 12 HOURS FOLLOWED BY ZONAL UPPER LEVEL FLOW AND SURFACE
HIGH PRESSURE RETURN FLOW WITH SHOWERS OVER THE W GULF.

CARIBBEAN SEA...
A 1009 MB LOW IS CENTERED OVER N COLOMBIA NEAR 9N75W. FRESH TO
STRONG TRADEWINDS ARE OVER THE CARIBBEAN SEA AND CENTRAL AMERICA
WITH STRONGEST WINDS ALONG THE COAST OF COLOMBIA. WIDELY
SCATTERED MODERATE CONVECTION IS INLAND OVER N COLOMBIA AND NW
VENEZUELA FROM 7N-11N BETWEEN 70W-75W. SCATTERED SHOWERS ARE
OVER PANAMA...COSTA RICA...INLAND HONDURAS AND INLAND
NICARAGUA...HISPANIOLA...AND THE WINDWARD ISLANDS S OF 15N E OF
63W. EXPECT...CONTINUED SHOWERS OVER THE SOUTHERN CARIBBEAN S OF
15N OVER THE NEXT 24 HOURS.

ATLANTIC OCEAN...
A 1029 MB HIGH IS CENTERED OFF THE COAST OF NORTH CAROLINA NEAR
35N74W. A COLD FRONT IS OVER THE W ATLANTIC FROM 32N64W TO
27N72W. SCATTERED SHOWERS ARE WITHIN 30 NM OF THE FRONT. A 1032
MB HIGH IS OVER THE CENTRAL ATLANTIC NEAR 41N45W. IN THE
TROPICS... A BAND OF LOW CLOUDS AND SHOWERS ARE E OF THE LESSER
ANTILLES FROM 11N-18N BETWEEN 50W-60W. IN THE UPPER LEVELS...AN
UPPER LEVEL TROUGH IS OVER THE W ATLANTIC W OF 70W. AN UPPER
LEVEL RIDGE IS N OF 20N BETWEEN 60W-70W. AN UPPER LEVEL TROUGH
IS N OF 20N BETWEEN 50W-60W. AN UPPER LEVEL RIDGE IS N OF 20N
BETWEEN 40W-50W. ZONAL FLOW IS OVER THE REMAINDER OF THE AREA.
EXPECT THE W ATLANTIC COLD FRONT TO MOVE E TO 32N58W IN 24 HOURS
WITH SHOWERS.

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

$$
FORMOSA



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