[Tropical] Tropical Weather Discussion

[EMWIN Server]

AXNT20 KNHC 100554
TWDAT

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
205 AM EDT TUE 10 MAY 2005

TROPICAL WEATHER DISCUSSION FOR NORTH AMERICA...CENTRAL
AMERICA... GULF OF MEXICO...CARIBBEAN SEA...NORTHEASTERN
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 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH
0515 UTC.

...TROPICAL WAVES...
TROPICAL WAVE ALONG 25W S OF 14N MOVING W AT 10-15 KT. AN
INVERTED-V SIGNATURE IS NOTED IN THE ITCZ ALONG 25W. WIDELY
SCATTERED SHOWERS ALONG THE ITCZ FROM 3N-7N BETWEEN 21W-25W.

TROPICAL WAVE ALONG 42W S OF 16N MOVING W 10-15 KT. SCATTERED
MODERATE TO STRONG CONVECTION IS SEEN ALONG THE ITCZ FROM 4N-7N
BETWEEN 39W-42W.

TROPICAL WAVE IS OVER THE W CARIBBEAN ALONG 82W S OF 17N MOVING
W 10-15 KT. ISOLATED MODERATE CONVECTION IN THE SW CARIBBEAN S
OF 12N W OF 80W.

...ITCZ...

ITCZ AXIS IS CENTERED ALONG 10N14W 7N25W 4N32W 6N42W 3N51W.
SCATTERED MODERATE ISOLATED STRONG CONVECTION IS FROM 4N-6N
BETWEEN 12W-20W AND WITHIN 45 NM EITHER SIDE OF AXIS FROM
29W-33W.

...DISCUSSION...

GULF OF MEXICO...
SURFACE TROUGH IS S OF THE FLORIDA PANHANDLE FROM 29N86W TO
26N90W. WIDELY SCATTERED MODERATE CONVECTION IS FROM 27N-29N
BETWEEN 86W-88W. UPPER LEVEL CYCLONIC CIRCULATION IS NOTED OVER
ALABAMA NEAR 32N87W. CYCLONIC FLOW IS OVER THE N GULF N OF 24N
FROM FLORIDA TO LOUISIANA. STRONG SUBSIDENCE COVERS THE ENTIRE
GULF EXCEPT FOR THE NE GULF.

CARIBBEAN...
MODERATE TRADEWINDS ARE NOTED OVER THE CARIBBEAN. CLUSTERS OF
SCATTERED MODERATE TO ISOLATED STRONG CONVECTION IS NOTED INLAND
OVER VENEZUELA AND COLOMBIA. THE REMNANTS OF A STATIONARY FRONT
IS OVER HISPANIOLA. A CONSIDERABLE AMOUNT OF HIGH CLOUD AND
PACIFIC MOISTURE HAS ADVECTED OVER THE CARIBBEAN SEA DUE TO A
BROAD RIDGE OVER VENEZUELA.

ATLANTIC...
1019 MB HIGH IS OVER GRAND BAHAMA ISLAND. STRONG SUBSIDENCE IS
IN THE MID/UPPER LEVELS DUE TO A BROAD UPPER TROF OVER THE W
ATLC N OF 23N W OF 60W. A COLD FRONT EXTENDS FROM NEAR 32N55W TO
21N63W THEN STATIONARY TO THE DOMINICAN REPUBLIC...WITH A
SURFACE TROUGH W OF THE FRONT FROM 32N59W TO 24N56W. THE TROUGH
IS MARKED BY A LINE OF SHOWERS 90 NM WIDE. EARLIER CONVECTION
ALONG THE TROUGH IS CURRENTLY DISSIPATING. UPPER LEVEL RIDGING
IS LOCATED OVER THE CNTRL ATLC ALONG 47W WITH A SFC RIDGE FROM A
1024 MB HIGH NEAR 32N43W SW TO 18N54W AND SE TO 23N30W THEN NE
TO THE CANARY ISLANDS. BROAD UPPER TROUGH OVER THE E ATLC...
WITH A GALE LOW NEAR THE AZORES. WEAK SFC TROF FROM 30N20W TO
24N27W IS ONLY BRINGING IN BROKEN STRATOCUMULUS SWD TO 26N.

$$
DGS

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