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Post-Tropical Cyclone Maria Public Advisory Number 59
2017-09-30 22:34:14| National Hurricane Center (Atlantic)
Issued at 500 PM AST Sat Sep 30 2017 000 WTNT35 KNHC 302034 TCPAT5 BULLETIN Post-Tropical Cyclone Maria Advisory Number 59 NWS National Hurricane Center Miami FL AL152017 500 PM AST Sat Sep 30 2017 ...MARIA NOW AN EXTRATROPICAL LOW... ...THIS IS THE LAST ADVISORY... SUMMARY OF 500 PM AST...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...42.0N 43.9W ABOUT 560 MI...895 KM ESE OF CAPE RACE NEWFOUNDLAND MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H PRESENT MOVEMENT...ENE OR 65 DEGREES AT 32 MPH...52 KM/H MINIMUM CENTRAL PRESSURE...991 MB...29.27 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 500 PM AST (2100 UTC), the center of Post-Tropical Cyclone Maria was located near latitude 42.0 North, longitude 43.9 West. The post-tropical cyclone is moving toward the east-northeast near 32 mph (52 km/h). Maria is forecast to continue moving toward the east-northeast with an increase in forward speed through the rest of the weekend. Maximum sustained winds are near 50 mph (85 km/h) with higher gusts. Gradual weakening is forecast, and Maria will likely dissipate on Monday. Tropical-storm-force winds extend outward up to 230 miles (370 km) from the center. The estimated minimum central pressure is 991 mb (29.27 inches). HAZARDS AFFECTING LAND ---------------------- None. NEXT ADVISORY ------------- This is the last public advisory issued by the National Hurricane Center on this system. Additional information on this system can be found in High Seas Forecasts issued by the National Weather Service, under AWIPS header NFDHSFAT1, WMO header FZNT01 KWBC, and available on the Web at http://www.opc.ncep.noaa.gov/shtml/NFDHSFAT1.shtml. $$ Forecaster Zelinsky
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Post-Tropical Cyclone Maria Forecast Advisory Number 59
2017-09-30 22:33:43| National Hurricane Center (Atlantic)
Issued at 2100 UTC SAT SEP 30 2017 000 WTNT25 KNHC 302033 TCMAT5 POST-TROPICAL CYCLONE MARIA FORECAST/ADVISORY NUMBER 59 NWS NATIONAL HURRICANE CENTER MIAMI FL AL152017 2100 UTC SAT SEP 30 2017 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. POST-TROPICAL CYCLONE CENTER LOCATED NEAR 42.0N 43.9W AT 30/2100Z POSITION ACCURATE WITHIN 30 NM PRESENT MOVEMENT TOWARD THE EAST-NORTHEAST OR 65 DEGREES AT 28 KT ESTIMATED MINIMUM CENTRAL PRESSURE 991 MB MAX SUSTAINED WINDS 45 KT WITH GUSTS TO 55 KT. 34 KT.......110NE 200SE 200SW 150NW. 12 FT SEAS..240NE 300SE 400SW 300NW. WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT. REPEAT...CENTER LOCATED NEAR 42.0N 43.9W AT 30/2100Z AT 30/1800Z CENTER WAS LOCATED NEAR 41.4N 45.5W FORECAST VALID 01/0600Z 43.8N 39.0W...POST-TROP/EXTRATROP MAX WIND 45 KT...GUSTS 55 KT. 34 KT...120NE 190SE 170SW 140NW. FORECAST VALID 01/1800Z 46.4N 31.4W...POST-TROP/EXTRATROP MAX WIND 40 KT...GUSTS 50 KT. 34 KT...120NE 180SE 160SW 130NW. FORECAST VALID 02/0600Z 48.9N 23.0W...POST-TROP/EXTRATROP MAX WIND 35 KT...GUSTS 45 KT. 34 KT...120NE 150SE 150SW 120NW. FORECAST VALID 02/1800Z...DISSIPATED REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 42.0N 43.9W THIS IS THE LAST FORECAST/ADVISORY ISSUED BY THE NATIONAL HURRICANE CENTER ON THIS SYSTEM. ADDITIONAL INFORMATION ON THIS SYSTEM CAN BE FOUND IN HIGH SEAS FORECASTS ISSUED BY THE NATIONAL WEATHER SERVICE...UNDER AWIPS HEADER NFDHSFAT1 AND WMO HEADER FZNT01 KWBC. $$ FORECASTER ZELINSKY
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Post-Tropical Cyclone Lee Graphics
2017-09-30 10:44:57| National Hurricane Center (Atlantic)
5-Day Uncertainty Track last updated Sat, 30 Sep 2017 08:44:57 GMT Wind Speed Probabilities last updated Sat, 30 Sep 2017 08:44:58 GMT
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posttropical
Post-Tropical Cyclone Lee Forecast Discussion Number 49
2017-09-30 10:39:35| National Hurricane Center (Atlantic)
Issued at 500 AM AST Sat Sep 30 2017 000 WTNT44 KNHC 300839 TCDAT4 Post-Tropical Cyclone Lee Discussion Number 49 NWS National Hurricane Center Miami FL AL142017 500 AM AST Sat Sep 30 2017 Lee is now over water colder than 20 degrees Celsius and is being blasted by 35 kt of west-northwesterly shear, and it has not been producing deep convection for at least the past 12 hours. The cyclone has therefore become post tropical, and this will be the last advisory. Without any deep convection, subjective and objective Dvorak numbers have decreased, and the initial intensity is estimated to be 45 kt. Lee continues to accelerate northeastward with an initial motion estimate of 050/44 kt. Continued acceleration is expected today, although the global model fields indicate that Lee's circulation will open up into a trough within the next 6 to 12 hours. A 12-hour point is provided in the official forecast for continuity's sake, but Lee will most likely have dissipated by then. Additional information on this system can be found in High Seas Forecasts issued by Meteo France under WMO header FQNT50 LFPW and in High Seas Forecasts issued by the UK Met Office under WMO header FQNT21 EGRR. These forecasts are available on the web at http://www.meteofrance.com/previsions-meteo-marine/bulletin and at http://www.metoffice.gov.uk/public/weather/marine-high-seas/. FORECAST POSITIONS AND MAX WINDS INIT 30/0900Z 46.7N 35.6W 45 KT 50 MPH...POST-TROPICAL 12H 30/1800Z 49.9N 24.6W 45 KT 50 MPH...POST-TROPICAL 24H 01/0600Z...DISSIPATED $$ Forecaster Berg
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Summary for Post-Tropical Cyclone Lee (AT4/AL142017)
2017-09-30 10:38:35| National Hurricane Center (Atlantic)
...LEE BECOMES A POST-TROPICAL LOW OVER THE NORTH ATLANTIC... ...THIS IS THE LAST ADVISORY... As of 5:00 AM AST Sat Sep 30 the center of Lee was located near 46.7, -35.6 with movement NE at 51 mph. The minimum central pressure was 998 mb with maximum sustained winds of about 50 mph.
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at4al142017
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