[Tropical] Tropical Weather Discussion

[EMWIN Server]

AXNT20 KNHC 060601
TWDAT

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
105 AM EST FRI MAR 06 2009

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 GOES-12 SATELLITE
IMAGERY THROUGH 0345 UTC...AND METEOSAT-9 IMAGERY THROUGH
0530 UTC.

...THE ITCZ...

FROM COASTAL LIBERIA NEAR 6N10W TO 6N14W TO THE EQUATOR ALONG
24W...ALONG THE EQUATOR TO 37W...INTO NORTHEASTERN BRAZIL NEAR
3S46W. DISORGANIZED ISOLATED MODERATE SHOWERS ARE SOUTH
OF 6N EAST OF 60W.

...DISCUSSION...

THE GULF OF MEXICO...
AN UPPER LEVEL RIDGE IS ALONG 92W IN THE WESTERN GULF OF MEXICO.
ANTICYCLONIC FLOW IS EVERYWHERE. BROAD SURFACE ANTICYCLONIC FLOW
COVERS THE AREA AROUND A RIDGE THAT EXTENDS FROM NORTHERN FLORIDA
TO THE BORDER OF SOUTH TEXAS WITH NORTHEASTERN MEXICO.

THE CARIBBEAN SEA...
A STATIONARY FRONT ENDS IN THE ANEGADA PASSAGE NEAR 18N64W.
A BROAD LARGE-SCALE UPPER LEVEL RIDGE IS ALONG 47W. UPPER LEVEL
SOUTHWESTERLY WIND FLOW MOVES FROM THE EASTERN PACIFIC OCEAN
ACROSS THE COSTA RICA/NICARAGUA BORDER...AND BEYOND HISPANIOLA.
BROKEN TO OVERCAST MIDDLE AND HIGH LEVEL CLOUDS EAST OF 73W.
BROAD LOW LEVEL CYCLONIC FLOW IS UNDER THE HIGHER LEVEL
SOUTHWESTERLY FLOW.

THE ATLANTIC OCEAN...
A WESTERN-TO-CENTRAL ATLANTIC OCEAN DEEP LAYER TROUGH SUPPORTS
THE CURRENT STATIONARY FRONT THAT PASSES THROUGH 32N53W TO
25N60W TO THE ANEGADA PASSAGE IN THE NORTHEASTERN CARIBBEAN SEA
NEAR 18N64W. POSSIBLE SHOWERS ARE WITHIN 6O NM TO 120 NM ON
EITHER SIDE OF 22N60W TO 28N56W BEYOND 32N54W. A BROAD LARGE-
SCALE UPPER LEVEL RIDGE IS ALONG 47W SOUTH OF 30N. BROAD SURFACE
ANTICYCLONIC FLOW IS AROUND A 1034 MB HIGH PRESSURE CENTER NEAR
35N71W. BROAD SURFACE ANTICYCLONIC FLOW IS AROUND A 1037 MB
AZORES HIGH PRESSURE CENTER NEAR 38N29W...FROM THE ITCZ
NORTHWARD...BETWEEN AFRICA AND THE STATIONARY FRONT. A MIDDLE
TO UPPER LEVEL TROUGH IS ALONG 31N22W TO A CYCLONIC CIRCULATION
CENTER NEAR 24N32W TO 10N35W.

$$
MT



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