Earl back to cat 4 status, 135mph, and more watches and warnings issued, at 5PM AST on 9/1
Posted by
Chris in Tampa on 9/1/2010, 5:00 pm
3 Day Track Forecast: http://www.nhc.noaa.gov/refresh/graphics_at2+shtml/152331.shtml?3day?large#contents
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HURRICANE EARL ADVISORY NUMBER 30 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL072010 500 PM EDT WED SEP 01 2010
...DANGEROUS AND LARGE HURRICANE EARL POSES A THREAT TO THE MID-ATLANTIC COAST...WATCHES AND WARNINGS EXTENDED NORTHWARD THROUGH MASSACHUSETTS...
SUMMARY OF 500 PM EDT...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...26.3N 73.3W ABOUT 235 MI...380 KM E OF GREAT ABACO ISLAND ABOUT 630 MI...1010 KM SSE OF CAPE HATTERAS NORTH CAROLINA MAXIMUM SUSTAINED WINDS...135 MPH...215 KM/HR PRESENT MOVEMENT...NW OR 320 DEGREES AT 17 MPH...28 KM/HR MINIMUM CENTRAL PRESSURE...941 MB...27.79 INCHES
WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY...
A TROPICAL STORM WARNING HAS BEEN ISSUED FROM THE NORTH CAROLINA/VIRGINIA BORDER TO SANDY HOOK NEW JERSEY...INCLUDING DELAWARE BAY SOUTH OF SLAUGHTER BEACH AND THE CHESAPEAKE BAY SOUTH OF NEW POINT COMFORT.
A HURRICANE WATCH HAS BEEN ISSUED FROM WOODS HOLE TO SAGAMORE BEACH MASSACHUSETTS...INCLUDING MARTHAS VINEYARD AND NANTUCKET.
A TROPICAL STORM WATCH HAS BEEN ISSUED FROM SANDY HOOK NEW JERSEY TO WOODS HOLE MASSACHUSETTS...INCLUDING BLOCK ISLAND AND LONG ISLAND SOUND.
A TROPICAL STORM WATCH HAS BEEN ISSUED FROM NORTH OF SAGAMORE BEACH TO THE MOUTH OF THE MERRIMACK RIVER MASSACHUSETTS.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
A HURRICANE WARNING IS IN EFFECT FOR... * BOGUE INLET NORTH CAROLINA NORTHEASTWARD TO THE NORTH CAROLINA/VIRGINIA BORDER INCLUDING THE PAMLICO AND ALBEMARLE SOUNDS.
A HURRICANE WATCH IS IN EFFECT FOR... * NORTH OF THE NORTH CAROLINA/VIRGINIA BORDER TO CAPE HENLOPEN DELAWARE. * WOODS HOLE TO SAGAMORE BEACH MASSACHUSETTS...INCLUDING MARTHAS VINEYARD AND NANTUCKET.
A TROPICAL STORM WARNING IS IN EFFECT FOR... * FROM CAPE FEAR TO WEST OF BOGUE INLET NORTH CAROLINA. * FROM THE NORTH CAROLINA/VIRGINIA BORDER TO SANDY HOOK NEW JERSEY...INCLUDING DELAWARE BAY SOUTH OF SLAUGHTER BEACH AND THE CHESAPEAKE BAY SOUTH OF NEW POINT COMFORT.
A TROPICAL STORM WATCH IS IN EFFECT FOR... * SANDY HOOK NEW JERSEY TO WOODS HOLE MASSACHUSETTS...INCLUDING BLOCK ISLAND AND LONG ISLAND SOUND. * NORTH OF SAGAMORE BEACH TO THE MOUTH OF THE MERRIMACK RIVER MASSACHUSETTS.
A HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA. A WARNING IS TYPICALLY ISSUED 36 HOURS BEFORE THE ANTICIPATED FIRST OCCURRENCE OF TROPICAL-STORM-FORCE WINDS...CONDITIONS THAT MAKE OUTSIDE PREPARATIONS DIFFICULT OR DANGEROUS. PREPARATIONS TO PROTECT LIFE AND PROPERTY SHOULD BE RUSHED TO COMPLETION.
A HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA. A WATCH IS TYPICALLY ISSUED 48 HOURS BEFORE THE ANTICIPATED FIRST OCCURRENCE OF TROPICAL-STORM-FORCE WINDS...CONDITIONS THAT MAKE OUTSIDE PREPARATIONS DIFFICULT OR DANGEROUS.
A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA WITHIN 36 HOURS.
A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 48 HOURS.
INTERESTS IN NORTHERN NEW ENGLAND AND SOUTHEASTERN CANADA SHOULD MONITOR THE PROGRESS OF EARL.
FOR STORM INFORMATION SPECIFIC TO YOUR AREA...INCLUDING POSSIBLE INLAND WATCHES AND WARNINGS...PLEASE MONITOR PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE FORECAST OFFICE.
DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ AT 500 PM EDT...2100 UTC...THE LARGE EYE OF HURRICANE EARL WAS LOCATED NEAR LATITUDE 26.3 NORTH...LONGITUDE 73.3 WEST. EARL IS MOVING TOWARD THE NORTHWEST NEAR 17 MPH...28 KM/HR. THIS MOTION IS EXPECTED TO CONTINUE TONIGHT WITH A GRADUAL TURN TO THE NORTH ON THURSDAY. ON THE FORECAST TRACK...THE CORE OF THE HURRICANE WILL APPROACH THE NORTH CAROLINA COAST BY LATE THURSDAY.
MAXIMUM SUSTAINED WINDS HAVE INCREASED TO NEAR 135 MPH...215 KM/HR...WITH HIGHER GUSTS. EARL IS AGAIN A CATEGORY FOUR HURRICANE ON THE SAFFIR-SIMPSON HURRICANE WIND SCALE. SOME FLUCTUATIONS IN INTENSITY ARE LIKELY TONIGHT AND THURSDAY...BUT A GRADUAL WEAKENING TREND IS ANTICIPATED THEREAFTER.
EARL IS STILL A LARGE HURRICANE AND GROWING. HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 90 MILES...150 KM...FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 200 MILES...325 KM.
LATEST MINIMUM CENTRAL PRESSURE REPORTED BY AN AIR FORCE RECONNAISSANCE PLANE A FEW HOURS AGO WAS 941 MB...27.79 INCHES.
HAZARDS AFFECTING LAND ---------------------- WINDS...TROPICAL STORM FORCE WINDS ARE EXPECTED TO REACH THE NORTH CAROLINA COAST WITHIN THE WARNING AREA BY THURSDAY AFTERNOON WITH HURRICANE FORCE WINDS OCCURRING BY LATE THURSDAY. TROPICAL STORM FORCE WINDS WILL LIKELY REACH THE COAST FROM VIRGINIA NORTHWARD TO NEW JERSEY BY EARLY FRIDAY.
STORM SURGE...A DANGEROUS STORM SURGE WILL RAISE WATER LEVELS BY AS MUCH AS 3 TO 5 FEET ABOVE GROUND LEVEL WITHIN THE HURRICANE WARNING AREA. ELSEWHERE...STORM SURGE WILL RAISE WATER LEVELS BY AS MUCH AS 1 TO 3 FEET ABOVE GROUND LEVEL WITHIN THE TROPICAL STORM WARNING AREA. NEAR THE COAST...THE SURGE WILL BE ACCOMPANIED BY LARGE AND DESTRUCTIVE WAVES.
RAINFALL...ACCUMULATIONS OF 2 TO 4 INCHES...WITH ISOLATED MAXIMUM AMOUNTS OF 6 INCHES...ARE EXPECTED OVER PORTIONS OF EASTERN NORTH CAROLINA INCLUDING THE OUTER BANKS.
SURF...LARGE SWELLS FROM EARL WILL CONTINUE TO AFFECT THE BAHAMAS AND THE EAST COAST OF THE UNITED STATES THROUGH FRIDAY. THESE SWELLS WILL LIKELY CAUSE DANGEROUS SURF CONDITIONS AND RIP CURRENTS.
NEXT ADVISORY ------------- NEXT INTERMEDIATE ADVISORY...800 PM EDT. NEXT COMPLETE ADVISORY...1100 PM EDT.
$$ FORECASTER AVILA
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HURRICANE EARL DISCUSSION NUMBER 30 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL072010 500 PM EDT WED SEP 01 2010
VISIBLE SATELLITE IMAGES INDICATE THAT THE EYE HAS BECOME VERY DISTINCT...WITH OJECTIVE T-NUMBERS OSCILLATING AROUND 6.0 FOR THE PAST FEW HOURS. AN AIR FORCE PLANE MEASURED FLIGHT-LEVEL WINDS OF 138 KNOTS AND A MINIMUM PRESSURE OF 941 MB IN THE LAST FIX. HOWEVER...SFMR MEASUREMENTS WERE A LITTLE LOWER. A COMPROMISE OF THESE DATA SUPPORTS AN INITIAL INTENSITY OF 115 KNOTS. HOWEVER...EARL COULD FLUCTUATE IN INTENSITY DURING THE NEXT 12 TO 24 HOURS BUT SHOULD BEGIN TO GRADUALLY WEAKEN AS IT REACHES COOLER WATERS AND MOVES INTO HIGHER SHEAR BEYOND 36 HOURS. BY DAY 5 THE HURRICANE SHOULD HAVE BEEN ABSORBED BY A LARGE EXTRATROPICAL CYCLONE WELL NORTH OF CANADA.
SATELLITE AND RECONNAISSANCE AIRCRAFT FIXES INDICATE THAT EARL HAS BEEN MOVING RELENTLESSLY TOWARD THE NORTHWEST OR 310 DEGREES AT 15 KNOTS. THE HURRICANE IS ABOUT TO REACH THE WESTERN EDGE OF THE SUBTROPICAL RIDGE AND SHOULD BEGIN TO TURN MORE TO THE NORTH-NORTHWEST AND NORTH LATER TONIGHT AND THURSDAY. IN ABOUT 36 HOURS OR SO...THE HURRICANE WILL ENCOUNTER THE BASE OF THE MID-LATITUDE WESTERLIES AND SHOULD BEGIN TO RECURVE OR TURN TO THE NORTHEAST WITH AN INCREASING FORWARD SPEED. THIS IS THE SOLUTION CONSISTENTLY PROVIDED BY TRACK MODELS...WHICH HAVE EARL PASSING TO THE EAST BUT NOT FAR FROM THE OUTER BANKS OF NORTH CAROLINA ON THURSDAY NIGHT. ONLY A SMALL WESTWARD DEVIATION OF THE TRACK TO THE WEST WOULD BRING THE CORE OF THE HURRICANE TO THE COAST.
GIVEN THE FORECAST TRACK...THE LARGE SIZE OF THE WIND FIELD...AND THE EXPECTED INCREASE IN FORWARD SPEED WATCHES AND WATCHES HAVE BEEN EXTENDED NORTHWARD ALONG THE EAST COAST OF THE UNITED STATES.
FORECAST POSITIONS AND MAX WINDS
INITIAL 01/2100Z 26.3N 73.3W 115 KT 12HR VT 02/0600Z 28.4N 74.7W 115 KT 24HR VT 02/1800Z 31.7N 75.4W 110 KT 36HR VT 03/0600Z 35.1N 74.7W 100 KT 48HR VT 03/1800Z 38.5N 72.2W 90 KT 72HR VT 04/1800Z 46.5N 63.5W 60 KT 96HR VT 05/1800Z 58.0N 57.0W 40 KT...POST-TROP/EXTRATROP 120HR VT 06/1800Z...DISSIPATED
$$ FORECASTER AVILA |
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In this thread:
Earl back to cat 4 status, 135mph, and more watches and warnings issued, at 5PM AST on 9/1 - Chris in Tampa, 9/1/2010, 5:00 pm- Going well north of the forecast track - JAC, 9/1/2010, 7:11 pm
- Instenification should continue for at least the next few hours. - JAC, 9/1/2010, 6:10 pm
- Looking forward to sunset - JAC, 9/1/2010, 6:05 pm
- Steering??? - JAC, 9/1/2010, 5:46 pm
- Holy S..t he's sucking up Fiona - JAC, 9/1/2010, 5:17 pm
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