Tropical Weather Discussion
Issued by NWS

Current Version | Previous Version | Text Only | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

000
AXNT20 KNHC 241053
TWDAT

TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
705 AM EST TUE FEB 24 2015

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...WEATHER OBSERVATIONS...RADAR...AND METEOROLOGICAL
ANALYSIS.

BASED ON 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH
1045 UTC.

...SPECIAL FEATURES...

...GALE WARNING FOR THE SW CARIBBEAN...
A GALE WARNING IS IN EFFECT OFF THE NW COAST OF COLOMBIA FROM
11N TO 13N BETWEEN 74W AND 76W. THE GALE IS FORECAST TO END AT
1200 UTC. THE GALE IS FORECAST TO RESUME AT 0600 UTC WED AND END
AGAIN AT 1200 UTC WED. PLEASE SEE THE LATEST HIGH SEAS FORECAST
UNDER AWIPS/WMO HEADERS MIAHSFAT2/FZNT02 KNHC FOR MORE DETAILS.

...GALE WARNING FOR THE W ATLANTIC...
A GALE IS EXPECTED ON THU FEB 26 0600 UTC OFF THE COAST OF
FLORIDA N OF 30N BETWEEN 77W AND 79W. A 1003 MB LOW IS FORECAST
NEAR 31N80W.

...ITCZ/MONSOON TROUGH...

THE MONSOON TROUGH EXTENDS ACROSS AFRICA INTO THE TROPICAL
ATLANTIC NEAR 7N12W TO 2N18W WHERE THE ITCZ BEGINS AND CONTINUES
TO 1S30W TO THE COAST OF SOUTH AMERICA NEAR 3S40W. SCATTERED
MODERATE TO STRONG CONVECTION IS S OF THE MONSOON TROUGH FROM 0N-
4N BETWEEN 5W-9W. ISOLATED MODERATE CONVECTION IS ALONG THE ITCZ
FROM 0N-3N BETWEEN 18W-22W. WIDELY SCATTERED MODERATE CONVECTION
IS N OF THE ITCZ FROM 0N-8N BETWEEN 38W-48W.

...DISCUSSION...

GULF OF MEXICO...

AS OF 0900 UTC...A COLD FRONT EXTENDS FROM FORT PIERCE FLORIDA
AT 27N80W TO A 1017 MB LOW IN THE CENTRAL GULF OF MEXICO AT
26N91W TO E OF COATZACOALCOS MEXICO AT 18N94W. SCATTERED
MODERATE CONVECTION IS WITHIN 30 NM OF 27N89W. RADAR IMAGERY
SHOWS SCATTERED SHOWERS OVER THE FLORIDA PANHANDLE AND THE NE
GULF N OF 28N E OF 88W. 10-25 KT NORTHERLY WINDS ARE N OF THE
FRONT. PATCHY FOG IS ALONG FLORIDA GULF COAST. 5-10 KT SOUTHERLY
FLOW IS S OF THE FRONT. IN THE UPPER LEVELS...A BROAD RIDGE IS
OVER THE GULF WITH PREDOMINATELY WESTERLY FLOW. UPPER LEVEL
MOISTURE IS OVER MOST OF THE GULF N OF 21N. STRONG SUBSIDENCE
REMAINS OVER THE BAY OF CAMPECHE. EXPECT OVER THE NEXT 24 HOURS
FOR THE FRONT TO REMAIN QUASI-STATIONARY.

CARIBBEAN SEA...

A GALE IS ALONG THE COAST OF NW COLOMBIA. THE GALE IS FORECAST
TO PULSE ON AND OFF OVER THE NEXT 30 HOURS. SEE ABOVE. 15-30 KT
TRADEWINDS ARE OVER THE REMAINDER OF THE CARIBBEAN. AN AREA OF
ISOLATED SHOWERS ARE OVER THE CENTRAL AND EASTERN CARIBBEAN FROM
14N-19N BETWEEN 64W-78W N. IN THE UPPER LEVELS...BROAD RIDGING
IS OVER THE CARIBBEAN WITH PREDOMINATELY WESTERLY FLOW AND VERY
STRONG SUBSIDENCE. EXPECT LITTLE CHANGE OVER THE NEXT 24 HOURS.

...HISPANIOLA...

EASTERLY SURFACE FLOW IS GENERATING ISOLATED SHOWERS OVER THE
ISLAND. THESE SHOWERS ARE POSSIBLE FOR THE NEXT 24 HOURS. STRONG
SUBSIDENCE WILL HOWEVER SUPPRESS THE FORMATION OF THUNDERSTORMS.

ATLANTIC OCEAN...

AS OF 0900 UTC...A COLD FRONT IS OVER THE W ATLANTIC FROM 31N68W
TO FORT PIERCE FLORIDA AT 27N80W. SCATTERED SHOWERS ARE WITHIN
60 NM OF THE FRONT. A LARGE 103 MB HIGH IS CENTERED NEAR THE
AZORES AT 39N23W. MOSTLY EASTERLY FLOW WITH FAIR WEATHER IS OVER
THE ATLANTIC FROM 20N-30N BETWEEN 20W-60W. IN THE UPPER
LEVELS...AN UPPER LEVEL LOW IS CENTERED OVER THE E ATLANTIC NEAR
26N27W. EXPECT IN 24 HOURS FOR THE COLD FRONT TO MOVE E TO
31N64W WITH SHOWERS.

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

$$
FORMOSA


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.