ONE North Atlantic (non tropical) Low Pressure Storm One North Atlantic Low Pressure System That Is Located At 28.00 N 94.00 W TWO Tropical Waves One Tropical wave that is located at 32.00 N 55.00 W to 28.00 N 62.00 W One Tropical wave that is located at 22.00 N 96.00 W to 19.00 N 93.00 W GULF OF MEXICO... A MIDDLE TO UPPER LEVEL SHORTWAVE TROUGH IS NOTED ON WATER VAPOR IMAGERY PROGRESSING EASTWARD OVER THE NORTHWESTERN GULF COAST WITH A MAJORITY OF THE MID-LEVEL ENERGY FOCUSED IN THE VICINITY OF 29N95W. THIS UPPER LEVEL DISTURBANCE SUPPORTS A 1009 MB LOW CENTERED NEAR 29N94W WITH A STATIONARY FRONT EXTENDS E-NE ALONG THE GULF COAST TO NEAR MOBILE BAY...AND SOUTH FROM THE LOW CENTER TO 22N95W THEN TO THE MEXICO COAST NEAR TUXPAN. EXTENSIVE CLOUDINESS AND WIDESPREAD SHOWERS AND ISOLATED TSTMS ARE OCCURRING N OF 24N BETWEEN 87W-95W...INCLUDING INLAND PORTIONS OF COASTAL LOUISIANA...MISSISSIPPI...AND ALABAMA. THE LOW IS EXPECTED TO CONTINUE ON A N-NE TRACK AND GRADUALLY BECOME EMBEDDED WITHIN SOUTHWESTERLY FLOW AT THE SURFACE AHEAD OF THE NEXT COLD FRONT TO EMERGE OFF THE TEXAS AND LOUISIANA COASTS BY EARLY WEDNESDAY. THEREAFTER...STRONG NORTHERLY WINDS IN THE RANGE OF 20 TO 30 KT ARE FORECAST TO SPREAD ACROSS THE GULF THROUGH THURSDAY GRADUALLY DIMINISHING BY LATE THURSDAY AS HIGH PRESSURE MOVES FROM TEXAS EASTWARD ALONG 30N/31N TO THE SE CONUS BY FRIDAY. CARIBBEAN SEA... A STATIONARY FRONT IS ANALYZED FROM THE CENTRAL ATLC NEAR 20N60W SW TO THE VIRGIN ISLANDS NEAR 18N65W WHERE ISOLATED SHOWERS ASSOCIATED WITH THE BOUNDARY ARE OCCURRING THIS AFTERNOON. ELSEWHERE...ONLY A FEW AREAS OF ISOLATED SHOWERS ARE OCCURRING WITH THE MOST CONCENTRATED AREA OF SHOWERS NOTED SOUTH OF HISPANIOLA FROM 15N-18N BETWEEN 67W-74W. THE OVERALL LACK OF SHOWER ACTIVITY IS DUE TO UPPER LEVEL RIDGING ANCHORED OVER THE CARIBBEAN WITH AXIS EXTENDING FROM NORTH-CENTRAL VENEZUELA NEAR 08N66W NW TO 22N80W. THE UPPER LEVEL RIDGE IS GENERALLY PROVIDING STABILITY AND DRY AIR OVER THE BASIN. WINDS AT THE SURFACE ARE RELATIVELY WEAK ACROSS THE CARIBBEAN...WITH A 1017 MB HIGH ANCHORED ACROSS THE SW NORTH ATLC EAST OF THE BAHAMAS NEAR 25N74W DRIVING THE TRADE WINDS. THE STRONGEST TRADES ARE NOTED CLOSE TO THE COAST OF COLOMBIA WHERE THE PRESSURE GRADIENT IS THE STRONGEST. EARLIER MORNING SCATTEROMETER PASSES INDICATED THESE WINDS GENERALLY S OF 13N BETWEEN 73W-77W. THE HIGH TO THE NORTH OF THE BASIN IS EXPECTED TO SHIFT E-NE AHEAD OF A COLD FRONT EXPECTED TO MOVE INTO THE GULF OF MEXICO WEDNESDAY. WINDS WILL GRADUALLY SHIFT MORE SOUTHERLY IN THE NW CARIBBEAN AND THE STATIONARY BOUNDARY NORTHEAST OF PUERTO RICO WILL DISSIPATE AS A RESULT. OTHERWISE...FAIR WEATHER CONDITIONS SHOULD REMAIN RELATIVELY UNCHANGED FOR THE NEXT FEW DAYS. ...HISPANIOLA... CURRENTLY MOSTLY CLEAR SKIES AND FAIR CONDITIONS ARE NOTED ON VISIBLE SATELLITE IMAGERY ACROSS THE ISLAND THIS AFTERNOON. HIGH PRESSURE REMAINS ANCHORED TO THE NORTH ACROSS THE SW NORTH ATLC AND THIS SURFACE RIDGING CONTINUES TO GENERATE LIGHT E-NE WINDS. THE HIGH WILL GRADUALLY SHIFT EAST-NORTHEAST INTO THE CENTRAL ATLC THROUGH WEDNESDAY WITH WINDS SHIFTING E-SE FOR THE LATTER PART OF THE WEEK.
Posted on: Wed, 12 Mar 2014 00:03:04 +0000
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