Home


000
AXNT20 KNHC 052330
TWDAT

TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
705 PM EST THU MAR 05 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 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 2315 UTC.


...SPECIAL FEATURES...


...GALE WARNING FOR THE SW CARIBBEAN...

A GALE WARNING IS IN EFFECT FOR COASTAL WATERS OF COLOMBIA FROM 11N TO 13N BETWEEN 74W AND 76W WITH SEAS RANGING BETWEEN 11 AND 16 FT. THESE CONDITIONS ARE FORECAST TO CONTINUE THROUGH 1800 UTC SAT MAR 07. PLEASE SEE THE LATEST HIGH SEAS FORECAST UNDER AWIPS/WMO HEADERS MIAHSFAT2/ FZNT02 KNHC FOR MORE DETAILS.


...GALE WARNING FOR THE GULF OF MEXICO...

A GALE WARNING IS IN EFFECT FOR THE W GULF OF MEXICO S OF 26N AND W OF COLD FRONT EXTENDING FROM 30N86W TO 26N92W TO 19N96W. GALE CONDITIONS ARE FORECAST TO CONTINUE UNTIL 1200 UTC SAT MAR 07. PLEASE SEE THE LATEST HIGH SEAS FORECAST UNDER AWIPS/WMO HEADERS MIAHSFAT2/ FZNT02 KNHC FOR MORE DETAILS.


...ITCZ/MONSOON TROUGH...

THE MONSOON TROUGH EXTENDS ACROSS AFRICA INTO THE TROPICAL ATLANTIC NEAR 4N8W TO 2N10W WHERE THE ITCZ BEGINS AND CONTINUES TO 0N18W TO 2S24W TO THE COAST OF SOUTH AMERICA NEAR 4S38W. SCATTERED MODERATE CONVECTION IS FROM 1S-4S BETWEEN 22W- 27W...AND FROM 1N-3S BETWEEN 34W-37W.


...DISCUSSION...

GULF OF MEXICO...

A 1039 MB HIGH IS CENTERED OVER CENTRAL TEXAS AT 33N100W. AS OF 2100 UTC...A COLD FRONT EXTENDS FROM THE FLORIDA PANHANDLE AT 30N84W TO THE W GULF AT 24N94W TO THE THE SOUTHERN BAY OF CAMPECHE AT 18N94W. SCATTERED SHOWERS ARE OVER N FLORIDA. A GALE IS S OF 26N AND W OF COLD FRONT. SEE ABOVE. 20-30 KT NORTHERLY WINDS ARE ELSEWHERE W OF FRONT. GOES-R IMAGERY SHOWS PATCHY FOG AND LOW STRATUS CLOUDS WITH IFR CONDITIONS W OF FRONT WITH LIFR CONDITIONS ALONG THE FLORIDA PANHANDLE COAST W OF FRONT. IN THE UPPER LEVELS...THE BACK SIDE OF A RIDGE IS PRODUCING SW FLOW WITH A BAND OF UPPER LEVEL MOISTURE OVER THE NW GULF AND STRONG SUBSIDENCE ELSEWHERE. EXPECT IN 24 HOURS FOR THE COLD FRONT TO EXTEND FROM S FLORIDA TO THE SOUTHERN BAY OF CAMPECHE.

CARIBBEAN SEA...

A GALE WARNING IS IN EFFECT FOR COASTAL WATERS OF COLOMBIA. THE GALE IS FORECAST CONTINUE FOR THE NEXT 48 HOURS. SEE ABOVE. THE REMAINDER OF THE CARIBBEAN SEA HAS 15-30 KT TRADEWINDS. RADAR IMAGERY SHOWS SCATTERED SHOWERS OVER PUERTO RICO. SIMILAR SHOWERS ARE DOTS THE CENTRAL AND EASTERN CARIBBEAN E OF 78W. MORE SHOWERS ARE OVER HONDURAS AND N NICARAGUA. IN THE UPPER LEVELS... A RIDGE IS OVER THE W CARIBBEAN W OF 82W. AN UPPER LEVEL TROUGH IS OVER THE REMAINDER OF THE SEA. STRONG SUBSIDENCE COVERS THE ENTIRE CARIBBEAN. EXPECT OVER THE NEXT 24 HOURS FOR SCATTERED SHOWERS TO CONTINUE TO MOVE W. ALSO EXPECT PREFRONTAL SHOWERS TO ADVECT OVER THE YUCATAN PENINSULA FROM THE GULF OF MEXICO.


...HISPANIOLA...

LOW LEVEL MOISTURE IN THE TRADEWIND FLOW IS SUPPORTING SCATTERED SHOWERS OVER HISPANIOLA. ADDITIONAL LOW LEVEL MOISTURE ADVECTING FROM THE EAST WILL BRING ADDITIONAL SCATTERED SHOWERS THROUGH FRI.

ATLANTIC OCEAN...

SURFACE HIGH PRESSURE RIDGING IS OVER THE ATLANTIC FROM 20N-30N BETWEEN THE CANARY ISLANDS AND FLORIDA. IN THE TROPICS...AN AREA OF SCATTERED SHOWERS ARE FROM 10N-18N BETWEEN 37W-48W. OF NOTE IN THE UPPER LEVELS...A SMALL UPPER LEVEL LOW IS CENTERED NEAR 25N42W. ANOTHER SMALL UPPER LEVEL LOW IS N OF THE CANARY ISLANDS AT 34N21W. EXPECT OVER THE NEXT 24 HOURS FOR A WESTERN ATLANTIC COLD FRONT TO EXTEND FROM 30N76W TO SOUTH FLORIDA NEAR 27N80W WITH SHOWERS AND CONVECTION N OF FRONT.

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

$$ FORMOSA

Home