[Tropical] Tropical Weather Discussion

[EMWIN Server]

AXNT20 KNHC 101045
TWDAT

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

...TROPICAL WAVES...
TROPICAL WAVE ALONG 26W S OF 14N MOVING W AT 10 KT. AN
INVERTED-V SIGNATURE IS NOTED IN THE ITCZ ALONG 26W. WIDELY
SCATTERED SHOWERS HAVE DISSIPATED.

TROPICAL WAVE ALONG 43W S OF 16N MOVING W 10 KT. SCATTERED
MODERATE TO STRONG CONVECTION IS SEEN ALONG THE ITCZ FROM 4N-7N
BETWEEN 38W-42W.

TROPICAL WAVE IS OVER THE W CARIBBEAN ALONG 84W S OF 17N MOVING
W 10-15 KT. WIDELY SCATTERED MODERATE CONVECTION IN THE SW
CARIBBEAN S OF 13N W OF 76W.

...ITCZ...

ITCZ AXIS IS CENTERED ALONG 6N12W 7N25W 4N32W 6N43W 4N51W.
SCATTERED MODERATE TO STRONG CONVECTION WITHIN 35 NM EITHER SIDE
OF AXIS FROM 12W-21W AND WITHIN 30 NM EITHER SIDE OF AXIS FROM
34W-38W.

...DISCUSSION...

GULF OF MEXICO...
SURFACE TROUGH IS S OF THE FLORIDA PANHANDLE FROM 29N86W TO
25N91W. ISOLATED SHOWERS FROM 27N-29N BETWEEN 86W-88W. UPPER
LEVEL CYCLONIC CIRCULATION IS NOTED OVER ALABAMA JUST N OF THE
AREA. 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...
1018 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 24N W OF 60W. A COLD FRONT EXTENDS FROM NEAR 32N53W TO
22N63W THEN STATIONARY TO THE DOMINICAN REPUBLIC...WITH A
SURFACE TROUGH W OF THE FRONT FROM 32N59W TO 25N65W. THE TROUGH
IS MARKED BY A LINE OF SHOWERS 90 NM WIDE. UPPER LEVEL RIDGING
IS LOCATED OVER THE CNTRL ATLC ALONG 45W WITH A SFC RIDGE FROM A
1022 MB HIGH NEAR 32N41W SW TO 22N52W AND SE OF HIGH TO 21N27W.
BROAD UPPER TROUGH OVER THE E ATLC. WEAK SFC TROF FROM 30N19W TO
23N27W IS ONLY BRINGING IN BROKEN STRATOCUMULUS SWD TO 26N.

$$
DGS


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