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| #59093 (Received by flhurricane at: 11:25 AM 29.Nov.2005) TCDAT4 TROPICAL STORM EPSILON DISCUSSION NUMBER 1 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 10 AM EST TUE NOV 29 2005 CONVENTIONAL SATELLITE IMAGERY...NEARBY SHIP AND BUOY OBSERVATIONS ...AND 29/0938Z QUIKSCAT SATELLITE WIND DATA INDICATE THE LARGE NON-TROPICAL LOW PRESSURE SYSTEM LOCATED ABOUT 730 NMI EAST OF BERMUDA HAS ACQUIRED ENOUGH CONVECTION NEAR THE CENTER TO BE CLASSIFIED AS TROPICAL STORM EPSILON...THE 26TH NAMED STORM OF THE APPARENTLY NEVER ENDING 2005 ATLANTIC HURRICANE SEASON. THE INITIAL INTENSITY OF 45 KT IS BASED ON BLEND OF 40-KT QUIKSCAT WINDS IN THE NORTHWEST QUADRANT AND A 29/0800Z 996.0 MB...EQUAL TO APPROXIMATELY 55 KT... PRESSURE REPORT FROM BUOY 41543 THAT WAS LOCATED ABOUT 90 NMI SOUTH OF THE CENTER. THE INITIAL MOTION ESTIMATE IS 270/07 KT. EPSILON IS EXPECTED TO MOVE GENERALLY WESTWARD FOR THE NEXT 24-36 HOURS AROUND THE SOUTHERN PERIPHERY OF A HIGH-LATITUDE RIDGE. AFTER THAT...THE CYCLONE IS FORECAST TO SLOW DOWN AND TURN AND NORTHEASTWARD AS A DEEP-LAYER TROUGH AND ASSOCIATED FRONTAL SYSTEM CURRENTLY OVER THE EASTERN UNITED STATES MOVES EASTWARD AND BEGINS TO TURN EPSILON BACK TOWARD THE EAST. BY 96 HOURS... EPSILON IS EXPECTED TO ACCELERATE RAPIDLY NORTHEASTWARD AND BECOME EXTRATROPICAL OR POSSIBLY EVEN BECOME ABSORBED BY THE MUCH LARGER EXTRATROPICAL LOW PRESSURE SYSTEM. THE FORECAST TRACK IS SIMILAR TO THE NHC MODEL CONSENSUS. EPSILON IS LOCATED OVER 25C SSTS... WHICH IS SUFFICIENTLY WARM ENOUGH TO SUPPORT AT LEAST MINIMAL HURRICANE INTENSITY. ALTHOUGH A BANDING EYE-LIKE FEATURE DURING THE PAST COUPLE OF HOURS... THE LOW-LEVEL PRESSURE AND WIND FIELDS APPEAR TO MORE REPRESENTATIVE OF SLOW DEVELOPING SUBTROPICAL CYCLONES. AS SUCH... INTENSIFICATION IS EXPECTED TO BE SLOWER THAN USUAL. HOWEVER... IF THE DEEP CONVECTION CONTINUES TO RAPIDLY INCREASE AROUND THE CENTER... THEN MORE AND EARLIER STRENGTHENING COULD OCCUR THAN WHAT IS FORECAST. THE OFFICIAL INTENSITY FORECAST CLOSELY FOLLOWS THE SHIPS MODEL AND IS HIGHER THAN THE GFDL MODEL. FORECASTER STEWART FORECAST POSITIONS AND MAX WINDS INITIAL 29/1500Z 31.6N 50.4W 40 KT 12HR VT 30/0000Z 31.7N 51.7W 50 KT 24HR VT 30/1200Z 31.8N 53.4W 55 KT 36HR VT 01/0000Z 32.0N 54.3W 60 KT 48HR VT 01/1200Z 32.7N 53.7W 60 KT 72HR VT 02/1200Z 33.5N 51.0W 55 KT 96HR VT 03/1200Z 35.0N 45.5W 50 KT...BECOMING EXTRATROPICAL 120HR VT 04/1200Z 37.0N 41.0W 45 KT...EXTRATROPICAL |
