[Tropical] Tropical Weather Discussion

[EMWIN Server]

AXNT20 KNHC 101733
TWDAT

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
105 PM EST WED FEB 10 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 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH
1645 UTC.

...THE ITCZ...

THE ITCZ AXIS IS CENTERED ALONG 9N10W 5N20W 6N38W CROSSING THE
EQUATOR NEAR 44W. CLUSTERS OF SCATTERED MODERATE CONVECTION ARE
FROM 3N-6N BETWEEN 4W-12W INCLUDING THE SW COAST OF AFRICA.

...DISCUSSION...
GULF OF MEXICO...
THE COLD FRONT HAS CLEARED THE GULF WATERS LEAVING IN ITS WAKE
COOLER TEMPERATURES AND COLD AIR STRATOCUMULUS CLOUDS OVER MOST
OF THE GULF WATERS W OF 85W. THE UPPER SUPPORT FOR THE FRONT
REMAINS ANCHORED BY AN UPPER LOW OVER THE MID ATLANTIC STATES
AND INTO THE W ATLC GIVING THE GULF ZONAL WESTERLY FLOW. AT THE
SURFACE...HIGH PRESSURE CONTINUES TO BUILD ACROSS THE AREA
ANCHORED BY A 1028 MB HIGH OVER NE OKLAHOMA WITH A STRONGER HIGH
WELL N OF THE REGION. A DEEP UPPER TROUGH OVER THE DESERT SW/NW
MEXICO IS GENERATING A STRONG UPPER JET ACROSS THE SE US AND
FORCING UPPER LEVEL MOISTURE ACROSS MEXICO AND THE W GULF GIVING
THE AREA BROKEN/OVERCAST MULTILAYERED CLOUDS WITH POSSIBLE
ISOLATED SHOWERS W OF 94W.

CARIBBEAN SEA...
COLD FRONT ENTERS THE NW CARIBBEAN FROM THE W ATLC ACROSS
CENTRAL CUBA NEAR SANTA CLARA THEN W OF THE CAYMAN ISLANDS TO
18N87W IN THE GULF OF HONDURAS TO INLAND OVER W HONDURAS NEAR
THE GUATEMALA BORDER GENERATING BROKEN/OVERCAST LOW/MID CLOUDS
WITH POSSIBLE ISOLATED SHOWERS WITHIN 45/60 NM EITHER SIDE OF
THE FRONT. THE FRONTAL BOUNDARY S OF 20N IS BECOMING STATIONARY
AT 10/1500 UTC. THE REMAINDER OF THE CARIBBEAN IS UNDER THE
INFLUENCE OF DRY STABLE AIR GIVING THE REMAINDER OF THE AREA
MOSTLY CLEAR SKIES BUT DUE TO THE TIGHTENING OF THE PRESSURE
GRADIENT OVER THE S CARIBBEAN...STRONG EASTERLY TRADE WINDS ARE
OVER THE AREA GENERALLY S OF 15N.

ATLANTIC OCEAN.
COLD FRONT ENTERS THE W ATLC NEAR 32N72W EXTENDING SW OVER THE N
BAHAMA ISLANDS ACROSS CUBA INTO THE NW CARIBBEAN NEAR SANTA
CLARA. THE UPPER SUPPORT OF THIS FRONT REMAINS ANCHORED BY AN
UPPER LOW OVER THE MID ATLANTIC STATES AND INTO THE W ATLC N OF
27N BETWEEN 63W-77W AND GENERATING BROKEN/OVERCAST LOW/MID
CLOUDS WITH POSSIBLE ISOLATED SHOWERS WITHIN 180 NM E OF THE
FRONT N OF 24N. COLD AIR STRATOCUMULUS CLOUDS ARE W OF THE FRONT
OVER THE REMAINDER OF THE W ATLC TO WITHIN 60/90 NM OF THE US
COASTLINE. A SECOND COLD FRONT ENTERS THE CENTRAL ATLC NEAR
32N36W EXTENDING ALONG 24N45W TO 21N55W BECOMING STATIONARY TO
22N65W WITH THE UPPER SUPPORT N OF THE REGION AND GENERATING
BROKEN/OVERCAST LOW/MID CLOUDS WITH POSSIBLE ISOLATED SHOWERS
WITHIN 60/90 NM EITHER SIDE OF THE FRONT N OF 27N. WEAK SURFACE
HIGH PRESSURE DOMINATES THE REMAINDER OF THE ATLC WITH A 1016 MB
HIGH CENTERED IN THE W/CENTRAL ATLC NEAR 27N57W AND A 1019 MB
HIGH JUST W OF THE CANARY ISLANDS NEAR 29N21W.

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

$$
WALLACE





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