[Tropical] Tropical Weather Discussion

[EMWIN Server]

AXNT20 KNHC 240527
TWDAT

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
205 AM EDT WED MAR 24 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
0345 UTC...

...ITCZ...

ITCZ AXIS IS CENTERED ALONG 5N8W 2N22W 2N50W. A SURFACE TROUGH
IS ANALYZED OVER PORTIONS OF BRAZIL ALONG 7N51W TO S OF THE
EQUATOR NEAR 51W. CLUSTERS OF SCATTERED MODERATE/STRONG
CONVECTION ARE FROM 4N TO S OF THE EQUATOR BETWEEN THE PRIME
MERIDIAN AND 10W. CLUSTERS OF SCATTERED MODERATE/ISOLATED STRONG
CONVECTION ARE WITHIN 200 NM N OF THE ITCZ FROM 14W-25W AND FROM
8N TO S OF THE EQUATOR BETWEEN 49W-53W.

...DISCUSSION...

GULF OF MEXICO...
A DEEP LAYERED RIDGE COVERS THE GULF WITH THE SURFACE RIDGE
ANCHORED BY A 1020 MB HIGH NEAR 28N87W AND THE UPPER LEVEL RIDGE
AXIS EXTENDS FROM AN UPPER HIGH INT HE E PACIFIC REGION ACROSS S
MEXICO TO OVER THE MISSISSIPPI VALLEY. UPPER LEVEL MOISTURE IS
BEING DRAWN OVER THE NW GULF IN THE FORM OF HIGH CLOUDS. STRONG
SUBSIDENCE AND DRY STABLE ALOFT IS GIVING MOST OF THE GULF
GENERALLY CLEAR SKIES TONIGHT. NEXT COLD FRONT IS EXPECTED TO
EMERGE OFF THE TEXAS GULF COAST ON THURSDAY.

CARIBBEAN SEA...
AS OF 24/0300 UTC...A STATIONARY FRONT ENTERS THE CARIBBEAN
THROUGH THE WINDWARD PASSAGE TO OVER JAMAICA WHERE IT IS
BEGINNING TO DISSIPATE TO 14N82W. MODERATE TO FRESH EASTERLY
TRADE WINDS CONTINUE ACROSS THE CARIBBEAN WITH BROKEN/OVERCAST
LOW CLOUDS WITH PATCHES OF FOG/HAZE/DRIZZLE WITHIN 75/100 NM OF
LINE FROM 20N81W TO INLAND OVER HONDURAS NEAR NEAR 16N86W. AN
UPPER RIDGE AXIS EXTENDS FROM ACROSS NICARAGUA TO THE DOMINICAN
REPUBLIC/MONA PASSAGE INTO THE CENTRAL ATLC. STRONG SUBSIDENCE
AND DRY AIR ALOFT ARE NOTED ON WATER VAPOR IMAGERY ACROSS THE
ENTIRE BASIN AND ARE RESULTING IN CLEAR SKIES ACROSS THE
REMAINDER OF THE CARIBBEAN.

ATLANTIC OCEAN...
AS OF 24/0300 UTC...A COLD FRONT ENTERS THE W ATLC E OF BERMUDA
NEAR 32N64W EXTENDING SW TO 24N71W BECOMING STATIONARY AS IT
CONTINUES ACROSS THE S BAHAMA ISLANDS INTO THE CARIBBEAN THROUGH
THE WINDWARD PASSAGE. SCATTERED SHOWERS/ISOLATED THUNDERSTORMS
ARE WITHIN 250 NM E OF THE FRONT N OF 25N WITH ISOLATED SHOWERS
POSSIBLE WITHIN 90 NM W OF THE ENTIRE FRONTAL BOUNDARY. THE
UPPER LEVEL TROUGH SUPPORTING THIS FRONT COVERS THE W ATLC N OF
24N W OF 60W TO THE FLORIDA E COAST. A SURFACE RIDGE DOMINATES
MOST OF THE CENTRAL AND E ATLC ANCHORED BY A 1030 MB HIGH NEAR
34N43W. A DISSIPATING COLD FRONT ENTERS THE FAR E ATLC THROUGH
32N16W TO JUST W OF THE CANARY ISLANDS NEAR 27N20W. THE UPPER
TROUGH ASSOCIATED WITH THIS FRONT COVERS MUCH OF THE E ATLC N OF
17N E OF 33W TO THE COAST OF W AFRICA. HOWEVER...DUE THE STRONG
SURFACE HIGH PRESSURE...THE ATLC E OF 55W IS EXPERIENCING FAIR
WEATHER TONIGHT.

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

$$
WALLACE



This weather bulletin was brought to you by:
www.nashvilleweather.net