[Tropical] Tropical Weather Discussion

[EMWIN Server]

AXNT20 KNHC 161051
TWDAT

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
805 AM EDT TUE MAR 16 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 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY
THROUGH 1015 UTC...

...THE ITCZ...

FROM THE COAST OF LIBERIA NEAR 5N9W TO 2N20W TO 2N30W 1N40W...
CURVING INTO NORTHEASTERN COASTAL BRAZIL NEAR THE EQUATOR ALONG
50W...TO 1S52W. SHOWERS ARE POSSIBLE TO THE SOUTH OF 7N TO THE
EAST OF 60W. SCATTERED MODERATE SHOWERS TO ISOLATED STRONG
THUNDERSTORMS ARE FROM THE EQUATOR TO 2S BETWEEN 25W AND 38W.

...DISCUSSION...

FROM THE EASTERN PACIFIC OCEAN...ACROSS MEXICO INTO THE GULF
OF MEXICO...AND INTO THE ATLANTIC OCEAN TO THE NORTH OF 20N
TO THE WEST OF 60W...
MIDDLE LEVEL TO UPPER LEVEL CYCLONIC FLOW COVERS MEXICO AND
THE SOUTHWESTERN CORNER OF THE U.S.A. TO THE NORTH OF 25N.
A CYCLONIC CENTER NOW IS MOVING THROUGH WEST TEXAS A LITTLE
BIT TO THE SOUTH OF LUBBOCK. UPPER LEVEL MOISTURE IS WITHIN
200 NM TO 300 NM ON EITHER SIDE OF 16N110W 21N100W 26N90W...
ACROSS FLORIDA NEAR 26N82W...BEYOND 29N64W IN THE ATLANTIC
OCEAN. THE FLOW IN THIS MOISTURE BAND IS FROM THE SOUTHWEST
TO WEST EVERYWHERE. THE FLOW IS CYCLONIC TO THE NORTH OF 30N
IN THE ATLANTIC OCEAN BETWEEN 50W AND 95W. THE ATLANTIC OCEAN
COLD FRONT PASSES THROUGH 32N45W TO 23N60W TO 20N68W.
A DISSIPATING STATIONARY FRONT CONTINUES FROM 20N68W...ACROSS
HISPANIOLA...TO 17N75W. A SURFACE TROUGH IS ALONG 27N63W 25N70W
24N79W. A WELL-DEFINED AREA OF CLOUDS IS MOVING EASTWARD BEHIND
THE TROUGH. SURFACE ANTICYCLONIC FLOW COVERS THE GULF OF MEXICO.
BROKEN TO OVERCAST MULTILAYERED CLOUDS AND POSSIBLE SHOWERS ARE
TO THE NORTH OF 24N BETWEEN 20W AND 60W...AND FROM 20N TO 25N
BETWEEN 60W AND THE WINDWARD CHANNEL.

THE CARIBBEAN SEA...
A DISSIPATING STATIONARY FRONT GOES FROM 20N68W...ACROSS
HISPANIOLA...TO 17N75W. SHOWERS ARE POSSIBLE EVERYWHERE IN
HISPANIOLA. THE PRESSURE GRADIENT ACROSS THE AREA IS WEAK.
BROAD UPPER LEVEL ANTICYCLONIC WIND FLOW COVERS THE AREA.

THE REST OF THE ATLANTIC OCEAN...
A WARM FRONT GOES FROM 31N40W TOWARD THE 992 MB LOW PRESSURE
CENTER THAT SUPPORTS THE 32N45W 20N68W COLD FRONT. SURFACE
ANTICYCLONIC FLOW COVERS THE AREA FROM 15N TO 32N BETWEEN AFRICA
AND 40W...MOVING AROUND A 1019 MB HIGH PRESSURE CENTER THAT IS
NEAR 27N25W. A SURFACE TROUGH REMAINS FROM A DISSIPATING COLD
FRONT...THAT IS ALONG 33N17W 27N20W. SHOWERS ARE POSSIBLE NEAR
THE COLD FRONT BUT NOT READILY APPARENT FROM SATELLITE IMAGERY.

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

$$
MT



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