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Post-Tropical Cyclone Hernan Public Advisory Number 11
2020-08-28 22:33:08| National Hurricane Center (East Pacific)
Issued at 300 PM MDT Fri Aug 28 2020 000 WTPZ33 KNHC 282032 TCPEP3 BULLETIN Post-Tropical Cyclone Hernan Advisory Number 11 NWS National Hurricane Center Miami FL EP132020 300 PM MDT Fri Aug 28 2020 ...HERNAN DEGENERATES TO A BROAD LOW PRESSURE AREA... ...THIS IS THE LAST ADVISORY... SUMMARY OF 300 PM MDT...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...23.2N 110.1W ABOUT 25 MI...40 KM NNW OF THE SOUTHERN TIP OF BAJA CALIFORNIA MAXIMUM SUSTAINED WINDS...30 MPH...45 KM/H PRESENT MOVEMENT...W OR 280 DEGREES AT 14 MPH...22 KM/H MINIMUM CENTRAL PRESSURE...1008 MB...29.77 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 300 PM MDT (2100 UTC), the center of Post-Tropical Cyclone Hernan was located near latitude 23.2 North, longitude 110.1 West. The post-tropical cyclone is moving toward the west near 14 mph (22 km/h) and this general motion is expected to continue until the system dissipates west of the southern portion of the Baja California peninsula tonight or on Saturday. Maximum sustained winds are near 30 mph (45 km/h) with higher gusts. The low pressure area is expected to dissipate tonight or Saturday. The estimated minimum central pressure is 1008 mb (29.77 inches). HAZARDS AFFECTING LAND ---------------------- None. NEXT ADVISORY ------------- This is the last public advisory issued by the National Hurricane Center on this system. For additional information on the remnant low please see High Seas Forecasts issued by the National Weather Service, under AWIPS header NFDHSFEPI, WMO header FZPN02 KWBC, and on the web at ocean.weather.gov/shtml/NFDHSFEPI.php $$ Forecaster Beven
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Post-Tropical Cyclone Hernan Wind Speed Probabilities Number 11
2020-08-28 22:33:08| National Hurricane Center (East Pacific)
Issued at 2100 UTC FRI AUG 28 2020 000 FOPZ13 KNHC 282032 PWSEP3 POST-TROPICAL CYCLONE HERNAN WIND SPEED PROBABILITIES NUMBER 11 NWS NATIONAL HURRICANE CENTER MIAMI FL EP132020 2100 UTC FRI AUG 28 2020 AT 2100Z THE CENTER OF POST-TROPICAL CYCLONE HERNAN WAS LOCATED NEAR LATITUDE 23.2 NORTH...LONGITUDE 110.1 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 25 KTS...30 MPH...45 KM/H. Z INDICATES COORDINATED UNIVERSAL TIME (GREENWICH) PACIFIC DAYLIGHT TIME (PDT)...SUBTRACT 7 HOURS FROM Z TIME HAWAIIAN STANDARD TIME (HST)...SUBTRACT 10 HOURS FROM Z TIME WIND SPEED PROBABILITY TABLE FOR SPECIFIC LOCATIONS CHANCES OF SUSTAINED (1-MINUTE AVERAGE) WIND SPEEDS OF AT LEAST ...34 KT (39 MPH... 63 KM/H)... ...50 KT (58 MPH... 93 KM/H)... ...64 KT (74 MPH...119 KM/H)... FOR LOCATIONS AND TIME PERIODS DURING THE NEXT 5 DAYS PROBABILITIES FOR LOCATIONS ARE GIVEN AS OP(CP) WHERE OP IS THE PROBABILITY OF THE EVENT BEGINNING DURING AN INDIVIDUAL TIME PERIOD (ONSET PROBABILITY) (CP) IS THE PROBABILITY OF THE EVENT OCCURRING BETWEEN 18Z FRI AND THE FORECAST HOUR (CUMULATIVE PROBABILITY) PROBABILITIES ARE GIVEN IN PERCENT X INDICATES PROBABILITIES LESS THAN 1 PERCENT PROBABILITIES FOR 34 KT AND 50 KT ARE SHOWN AT A GIVEN LOCATION WHEN THE 5-DAY CUMULATIVE PROBABILITY IS AT LEAST 3 PERCENT. PROBABILITIES FOR 34...50...64 KT SHOWN WHEN THE 5-DAY 64-KT CUMULATIVE PROBABILITY IS AT LEAST 1 PERCENT. - - - - WIND SPEED PROBABILITIES FOR SELECTED LOCATIONS - - - - FROM FROM FROM FROM FROM FROM FROM TIME 18Z FRI 06Z SAT 18Z SAT 06Z SUN 18Z SUN 18Z MON 18Z TUE PERIODS TO TO TO TO TO TO TO 06Z SAT 18Z SAT 06Z SUN 18Z SUN 18Z MON 18Z TUE 18Z WED FORECAST HOUR (12) (24) (36) (48) (72) (96) (120) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LOCATION KT $$ FORECASTER BEVEN
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Post-Tropical Cyclone Hernan Forecast Advisory Number 11
2020-08-28 22:32:37| National Hurricane Center (East Pacific)
Issued at 2100 UTC FRI AUG 28 2020 000 WTPZ23 KNHC 282032 TCMEP3 POST-TROPICAL CYCLONE HERNAN FORECAST/ADVISORY NUMBER 11 NWS NATIONAL HURRICANE CENTER MIAMI FL EP132020 2100 UTC FRI AUG 28 2020 THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. POST-TROPICAL CYCLONE CENTER LOCATED NEAR 23.2N 110.1W AT 28/2100Z POSITION ACCURATE WITHIN 40 NM PRESENT MOVEMENT TOWARD THE WEST OR 280 DEGREES AT 12 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1008 MB MAX SUSTAINED WINDS 25 KT WITH GUSTS TO 35 KT. 12 FT SEAS.. 60NE 120SE 90SW 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 23.2N 110.1W AT 28/2100Z AT 28/1800Z CENTER WAS LOCATED NEAR 23.1N 109.5W FORECAST VALID 29/0600Z 23.3N 111.8W...POST-TROP/REMNT LOW MAX WIND 20 KT...GUSTS 30 KT. FORECAST VALID 29/1800Z...DISSIPATED REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 23.2N 110.1W THIS IS THE LAST FORECAST/ADVISORY ISSUED BY THE NATIONAL HURRICANE CENTER ON THIS SYSTEM. FOR ADDITIONAL INFORMATION ON THE REMNANT LOW PLEASE SEE HIGH SEAS FORECASTS ISSUED BY THE NATIONAL WEATHER SERVICE...UNDER AWIPS HEADER NFDHSFEPI AND WMO HEADER FZPN02 KWBC. $$ FORECASTER BEVEN
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Post-Tropical Cyclone Marco Graphics
2020-08-25 10:41:03| National Hurricane Center (Atlantic)
5-Day Uncertainty Track last updated Tue, 25 Aug 2020 08:41:03 GMT Wind Speed Probabilities last updated Tue, 25 Aug 2020 09:31:45 GMT
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Post-Tropical Cyclone Marco Forecast Discussion Number 21
2020-08-25 10:40:09| National Hurricane Center (Atlantic)
Issued at 400 AM CDT Tue Aug 25 2020 000 WTNT44 KNHC 250839 TCDAT4 Post-Tropical Cyclone Marco Discussion Number 21 NWS National Hurricane Center Miami FL AL142020 400 AM CDT Tue Aug 25 2020 Marco has been devoid of any significant convection for at least 12 hours, and ASCAT scatterometer surface wind data around 0239Z suggested that Marco might have degenerated in a north-to-south elongated trough. Based on this information, Marco has been downgraded to post-tropical remnant low. Brisk southwesterly vertical wind shear of 30 kt is forecast to increase to near 35 kt in 24 hours, which should prevent the redevelopment of deep convection near the center. Marco's remnants are expected to move generally westward along or just south of the southern coast of Louisiana for the next 24 hours or until dissipation occurs. This is the last forecast/advisory issued by the National Hurricane Center on Marco. Additional information on this system can be found in high seas forecasts issued by the national weather service...under AWIPS header NFDHSFAT1 and WMO header FZNT01 KWBC. FORECAST POSITIONS AND MAX WINDS INIT 25/0900Z 28.8N 91.2W 25 KT 30 MPH...POST-TROP/REMNT LOW 12H 25/1800Z 28.8N 92.7W 20 KT 25 MPH...POST-TROP/REMNT LOW 24H 26/0600Z...DISSIPATED $$ Forecaster Stewart
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