je.st
news
Tag: posttropical
Post-Tropical Cyclone BERTHA Forecast Discussion Number 23
2014-08-06 16:35:08| National Hurricane Center (Atlantic)
Issued at 1100 AM AST WED AUG 06 2014 000 WTNT43 KNHC 061435 TCDAT3 POST-TROPICAL CYCLONE BERTHA DISCUSSION NUMBER 23 NWS NATIONAL HURRICANE CENTER MIAMI FL AL032014 1100 AM AST WED AUG 06 2014 Satellite images indicate that Bertha has become associated with a frontal system and has acquired extratropical characteristics. The low-level center is devoid of deep convection and is on the cold air side of a frontal cloud band or trough extending from Nova Scotia southwestward to the Bahamas. In addition, there is a strong westerly upper-level jet over the system. The low is moving toward the northeast or 055 degrees at 27 knots steered by the mid-latitude westerlies. Most of the global models keep the post-tropical cyclone moving rapidly northeastward and then eastward over the North Atlantic. This is the last advisory issued by the NHC on Bertha. 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. FORECAST POSITIONS AND MAX WINDS INIT 06/1500Z 40.2N 62.7W 45 KT 50 MPH...POST-TROP/EXTRATROP 12H 07/0000Z 42.3N 58.1W 45 KT 50 MPH...POST-TROP/EXTRATROP 24H 07/1200Z 45.0N 52.5W 40 KT 45 MPH...POST-TROP/EXTRATROP 36H 08/0000Z 47.5N 46.0W 40 KT 45 MPH...POST-TROP/EXTRATROP 48H 08/1200Z 48.5N 40.0W 40 KT 45 MPH...POST-TROP/EXTRATROP 72H 09/1200Z 48.0N 26.0W 35 KT 40 MPH...POST-TROP/EXTRATROP 96H 10/1200Z 48.5N 8.5W 35 KT 40 MPH...POST-TROP/EXTRATROP 120H 11/1200Z...Absorbed $$ Forecaster Avila
Tags: number
discussion
forecast
cyclone
Post-Tropical Cyclone BERTHA Wind Speed Probabilities Number 23
2014-08-06 16:34:44| National Hurricane Center (Atlantic)
Issued at 1500 UTC WED AUG 06 2014 000 FONT13 KNHC 061434 PWSAT3 POST-TROPICAL CYCLONE BERTHA WIND SPEED PROBABILITIES NUMBER 23 NWS NATIONAL HURRICANE CENTER MIAMI FL AL032014 1500 UTC WED AUG 06 2014 AT 1500Z THE CENTER OF POST-TROPICAL CYCLONE BERTHA WAS LOCATED NEAR LATITUDE 40.2 NORTH...LONGITUDE 62.7 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 45 KTS...50 MPH...85 KM/H. Z INDICATES COORDINATED UNIVERSAL TIME (GREENWICH) ATLANTIC STANDARD TIME (AST)...SUBTRACT 4 HOURS FROM Z TIME EASTERN DAYLIGHT TIME (EDT)...SUBTRACT 4 HOURS FROM Z TIME CENTRAL DAYLIGHT TIME (CDT)...SUBTRACT 5 HOURS FROM Z TIME WIND SPEED PROBABILITY TABLE FOR SPECIFIC LOCATIONS CHANCES OF SUSTAINED (1-MINUTE AVERAGE) WIND SPEEDS OF AT LEAST ...34 KT (39 MPH... 63 KM/H)... ...50 KT (58 MPH... 93 KM/H)... ...64 KT (74 MPH...119 KM/H)... FOR LOCATIONS AND TIME PERIODS DURING THE NEXT 5 DAYS PROBABILITIES FOR LOCATIONS ARE GIVEN AS OP(CP) WHERE OP IS THE PROBABILITY OF THE EVENT BEGINNING DURING AN INDIVIDUAL TIME PERIOD (ONSET PROBABILITY) (CP) IS THE PROBABILITY OF THE EVENT OCCURRING BETWEEN 12Z WED AND THE FORECAST HOUR (CUMULATIVE PROBABILITY) PROBABILITIES ARE GIVEN IN PERCENT X INDICATES PROBABILITIES LESS THAN 1 PERCENT PROBABILITIES FOR 34 KT AND 50 KT ARE SHOWN AT A GIVEN LOCATION WHEN THE 5-DAY CUMULATIVE PROBABILITY IS AT LEAST 3 PERCENT. PROBABILITIES FOR 64 KT ARE SHOWN WHEN THE 5-DAY CUMULATIVE PROBABILITY IS AT LEAST 1 PERCENT. - - - - WIND SPEED PROBABILITIES FOR SELECTED LOCATIONS - - - - FROM FROM FROM FROM FROM FROM FROM TIME 12Z WED 00Z THU 12Z THU 00Z FRI 12Z FRI 12Z SAT 12Z SUN PERIODS TO TO TO TO TO TO TO 00Z THU 12Z THU 00Z FRI 12Z FRI 12Z SAT 12Z SUN 12Z MON FORECAST HOUR (12) (24) (36) (48) (72) (96) (120) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LOCATION KT HIBERNIA OILFD 34 X 2( 2) 32(34) 1(35) X(35) X(35) X(35) HIBERNIA OILFD 50 X X( X) 5( 5) 1( 6) X( 6) X( 6) X( 6) CAPE RACE NFLD 34 X 9( 9) 1(10) X(10) X(10) X(10) X(10) SABLE ISLAND 34 2 1( 3) X( 3) X( 3) X( 3) X( 3) X( 3) $$ FORECASTER AVILA
Tags: number
speed
wind
cyclone
Summary for Post-Tropical Cyclone BERTHA (AT3/AL032014)
2014-08-06 16:34:40| National Hurricane Center (Atlantic)
...BERTHA ACQUIRED EXTRATROPICAL CHARACTERISTICS... ...THIS IS THE LAST ADVISORY... As of 11:00 AM AST Wed Aug 6 the center of BERTHA was located near 40.2, -62.7 with movement NE at 31 mph. The minimum central pressure was 1006 mb with maximum sustained winds of about 50 mph.
Tags: summary
cyclone
bertha
at3al032014
Post-Tropical Cyclone BERTHA Public Advisory Number 23
2014-08-06 16:34:40| National Hurricane Center (Atlantic)
Issued at 1100 AM AST WED AUG 06 2014 000 WTNT33 KNHC 061434 TCPAT3 BULLETIN POST-TROPICAL CYCLONE BERTHA ADVISORY NUMBER 23 NWS NATIONAL HURRICANE CENTER MIAMI FL AL032014 1100 AM AST WED AUG 06 2014 ...BERTHA ACQUIRED EXTRATROPICAL CHARACTERISTICS... ...THIS IS THE LAST ADVISORY... SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...40.2N 62.7W ABOUT 305 MI...495 KM S OF HALIFAX NOVA SCOTIA ABOUT 655 MI...1060 KM SW OF CAPE RACE NEWFOUNDLAND MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H PRESENT MOVEMENT...NE OR 55 DEGREES AT 31 MPH...50 KM/H MINIMUM CENTRAL PRESSURE...1006 MB...29.71 INCHES WATCHES AND WARNINGS -------------------- THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ AT 1100 AM AST...1500 UTC...THE CENTER OF POST-TROPICAL CYCLONE BERTHA WAS ESTIMATED NEAR LATITUDE 40.2 NORTH...LONGITUDE 62.7 WEST. THE POST-TROPICAL CYCLONE IS MOVING TOWARD THE NORTHEAST NEAR 31 MPH ...50 KM/H...AND THIS MOTION IS EXPECTED TO CONTINUE DURING THE NEXT DAY OR TWO. MAXIMUM SUSTAINED WINDS ARE NEAR 50 MPH...85 KM/H...WITH HIGHER GUSTS. LITTLE CHANGE IN STRENGTH IS FORECAST DURING THE NEXT 48 HOURS. GALE FORCE WINDS EXTEND OUTWARD UP TO 140 MILES...220 KM TO THE SOUTH OF THE CENTER. THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 1006 MB...29.71 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 AND WMO HEADER FZNT01 KWBC. $$ FORECASTER AVILA
Tags: number
public
advisory
cyclone
Post-Tropical Cyclone BERTHA Forecast Advisory Number 23
2014-08-06 16:34:12| National Hurricane Center (Atlantic)
Issued at 1500 UTC WED AUG 06 2014 000 WTNT23 KNHC 061434 TCMAT3 POST-TROPICAL CYCLONE BERTHA FORECAST/ADVISORY NUMBER 23 NWS NATIONAL HURRICANE CENTER MIAMI FL AL032014 1500 UTC WED AUG 06 2014 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. POST-TROPICAL CYCLONE CENTER LOCATED NEAR 40.2N 62.7W AT 06/1500Z POSITION ACCURATE WITHIN 40 NM PRESENT MOVEMENT TOWARD THE NORTHEAST OR 55 DEGREES AT 27 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1006 MB MAX SUSTAINED WINDS 45 KT WITH GUSTS TO 55 KT. 34 KT.......100NE 120SE 0SW 0NW. 12 FT SEAS.. 60NE 150SE 180SW 60NW. WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT. REPEAT...CENTER LOCATED NEAR 40.2N 62.7W AT 06/1500Z AT 06/1200Z CENTER WAS LOCATED NEAR 39.4N 64.1W FORECAST VALID 07/0000Z 42.3N 58.1W...POST-TROP/EXTRATROP MAX WIND 45 KT...GUSTS 55 KT. 34 KT...120NE 120SE 0SW 0NW. FORECAST VALID 07/1200Z 45.0N 52.5W...POST-TROP/EXTRATROP MAX WIND 40 KT...GUSTS 50 KT. 34 KT...120NE 180SE 60SW 0NW. FORECAST VALID 08/0000Z 47.5N 46.0W...POST-TROP/EXTRATROP MAX WIND 40 KT...GUSTS 50 KT. 34 KT...120NE 240SE 120SW 0NW. FORECAST VALID 08/1200Z 48.5N 40.0W...POST-TROP/EXTRATROP MAX WIND 40 KT...GUSTS 50 KT. 34 KT...120NE 240SE 120SW 120NW. FORECAST VALID 09/1200Z 48.0N 26.0W...POST-TROP/EXTRATROP MAX WIND 35 KT...GUSTS 45 KT. 34 KT...180NE 240SE 240SW 180NW. EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM ON DAY 4 AND 200 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY OUTLOOK VALID 10/1200Z 48.5N 8.5W...POST-TROP/EXTRATROP MAX WIND 35 KT...GUSTS 45 KT. OUTLOOK VALID 11/1200Z...ABSORBED REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 40.2N 62.7W THIS IS THE LAST FORECAST/ADVISORY ISSUED BY THE NATIONAL HURRICANE CENTER ON THIS SYSTEM $$ FORECASTER AVILA
Tags: number
advisory
forecast
cyclone
Sites : [290] [291] [292] [293] [294] [295] [296] [297] [298] [299] [300] [301] [302] [303] [304] [305] [306] [307] [308] [309] next »