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Atlantic Tropical Weather Discussion



000
AXNT20 KNHC 020517
TWDAT 

TROPICAL WEATHER DISCUSSION                                    
NWS NATIONAL HURRICANE CENTER MIAMI FL                         
205 AM EDT WED APR 02 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 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0515 UTC.

...ITCZ/MONSOON TROUGH... 

THE MONSOON TROUGH EXTENDS ACROSS AFRICA INTO THE TROPICAL 
ATLANTIC NEAR 05N09W TO 01S14W WHERE THE ITCZ BEGINS AND 
CONTINUES THROUGH 02S25W TO THE COAST OF SOUTH AMERICA NEAR 
04S38W. SCATTERED MODERATE CONVECTION IS FROM 04S TO 02N BETWEEN 
14W AND 23W. WIDELY SCATTERED MODERATE CONVECTION IS WITHIN 140 
NM OF EITHER SIDE OF THE MONSOON TROUGH AND ITCZ AXIS BETWEEN 
12W AND 38W.

...DISCUSSION...

GULF OF MEXICO...

A 1020 MB SURFACE HIGH PRESSURE CENTER IS LOCATED OFFSHORE OF SW 
FLORIDA NEAR 26N84W WITH RIDGING EXTENDING TO THE TEXAS COAST. 
SE FLOW OF 10 TO 15 KT COVERS THE MAJORITY OF THE GULF...EXCEPT 
FOR AN AREA OF WINDS TO 20 KT FROM 20N TO 26N BETWEEN 89W AND 
94W...AND LIGHTER ANTICYCLONIC FLOW WITHIN 150 NM OF THE HIGH 
CENTER. THE RIDGING SUPPORTS GENERALLY FAIR WEATHER ACROSS THE 
BASIN TONIGHT. RIDGING IS FORECAST TO REMAIN IN PLACE ACROSS THE 
BASIN THROUGH FRIDAY WITH FAIR WEATHER EXPECTED. 

CARIBBEAN SEA...

MODERATE TO FRESH TRADE WINDS PREVAIL ACROSS THE MAJORITY OF THE 
BASIN EXCEPT NEAR THE COAST OF COLOMBIA WHERE THEY ARE FRESH TO 
STRONG. DRY AIR IN THE MIDDLE TO UPPER LEVELS AND SUBSIDENCE IS 
INHIBITING ANY DEEP CONVECTION ACROSS THE BASIN TONIGHT. PATCHES 
OF SHALLOW SHOWERS IN THE TRADE WIND FLOW ARE OCCURRING ACROSS 
THE CARIBBEAN BETWEEN 15N AND 20N...INCLUDING JAMAICA AND THE 
VIRGIN ISLANDS. OVER THE NEXT 48 HOURS THE TRADE WINDS ARE 
FORECAST TO INCREASE SLIGHTLY AS THE PRESSURE GRADIENT TIGHTENS 
BETWEEN ATLANTIC RIDGING AND LOWER PRESSURE OVER S AMERICA. 
OTHERWISE...SIMILAR CONDITIONS ARE EXPECTED OVER THE BASIN 
THROUGH FRIDAY. 

HISPANIOLA...

SCATTERED SHOWERS ARE OCCURRING OVER THE ISLAND AS A STATIONARY 
FRONT IS LOCATED JUST NW OF HISPANIOLA IN THE WINDWARD PASSAGE. 
THIS FRONT WILL GRADUALLY DISSIPATE DURING THE NEXT 24 HOURS 
WITH SHOWER ACTIVITY PERSISTING UNTIL FULL DISSIPATION OF THE 
FRONT OCCURS.

ATLANTIC OCEAN... 

A COLD FRONT EXTENDS INTO THE AREA OF DISCUSSION NEAR 32N69W TO 
THE FL COAST AROUND DAYTONA BEACH NEAR 29N81W. SCATTERED 
THUNDERSTORMS ARE WITHIN 70 NM S OF THE COLD FRONT. A STATIONARY 
FRONT EXTENDS FROM 32N43W TO 24N60W TO NEAR THE WINDWARD PASSAGE 
NEAR 20N74W. SCATTERED SHOWERS ARE OCCURRING WITHIN 70 NM OF 
EITHER SIDE OF THIS FRONT. OVER THE CENTRAL ATLC...A SURFACE 
TROUGH EXTENDS FROM 25N42W TO 19N41W. NO CONVECTION IS NOTED 
WITH THE TROUGH. HIGH PRESSURE DOMINATES THE REMAINDER OF THE 
CENTRAL AND EASTERN ATLC WITH GENERALLY FAIR WEATHER FROM 05N 
AND 32N. THE COLD FRONT WILL MOVE EAST TO NEAR 30N60W BY FRIDAY 
WITH CONVECTION. THE STATIONARY FRONT IS FORECAST TO GRADUALLY 
DISSIPATE DURING THE NEXT 24 HOURS.

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

$$

LATTO


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Page last modified: Thursday, 02-Apr-2015 05:17:30 UTC