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Post-Tropical Cyclone Epsilon Forecast Discussion Number 29
2020-10-26 03:36:14| National Hurricane Center (Atlantic)
Issued at 300 AM GMT Mon Oct 26 2020 000 WTNT42 KNHC 260236 TCDAT2 Post-Tropical Cyclone Epsilon Discussion Number 29 NWS National Hurricane Center Miami FL AL272020 300 AM GMT Mon Oct 26 2020 Recent satellite-derived wind data indicate that Epsilon no longer has the structure of a tropical cyclone. The low-level circulation is stretched out along a north-south axis, with an area of lighter winds noted near and north of the ill-defined center. Furthermore, infrared cloud tops have warmed over the past several hours as convection wanes near the center. Therefore, Epsilon has been declared a post-tropical cyclone, and this will be the last NHC advisory for the system. A partial 22Z ASCAT-A overpass showed at least 55-kt winds in the southern semicircle of the cyclone, which supports keeping the initial intensity at 60 kt. Post-tropical Epsilon is firmly embedded in the mid-latitude westerlies, and the cyclone will continue racing northeastward at around 35-40 kt for the next day or so. The cyclone will remain a very powerful and dangerous storm until it is absorbed by another large extratropical low pressure system over the northeastern Atlantic. The global models remain in very good agreement with this scenario, and no notable changes were made to the official NHC forecast. 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 online at ocean.weather.gov/shtml/NFDHSFAT1.php FORECAST POSITIONS AND MAX WINDS INIT 26/0300Z 48.6N 38.8W 60 KT 70 MPH...POST-TROPICAL 12H 26/1200Z 52.1N 30.3W 60 KT 70 MPH...POST-TROP/EXTRATROP 24H 27/0000Z 57.0N 24.0W 55 KT 65 MPH...POST-TROP/EXTRATROP 36H 27/1200Z...ABSORBED $$ Forecaster Reinhart/Zelinsky
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Post-Tropical Cyclone Epsilon Wind Speed Probabilities Number 29
2020-10-26 03:35:14| National Hurricane Center (Atlantic)
Issued at 0300 UTC MON OCT 26 2020 000 FONT12 KNHC 260235 PWSAT2 POST-TROPICAL CYCLONE EPSILON WIND SPEED PROBABILITIES NUMBER 29 NWS NATIONAL HURRICANE CENTER MIAMI FL AL272020 0300 UTC MON OCT 26 2020 AT 0300Z THE CENTER OF POST-TROPICAL CYCLONE EPSILON WAS LOCATED NEAR LATITUDE 48.6 NORTH...LONGITUDE 38.8 WEST WITH MAXIMUM SUSTAINED WINDS NEAR 60 KTS...70 MPH...110 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 00Z MON 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 00Z MON 12Z MON 00Z TUE 12Z TUE 00Z WED 00Z THU 00Z FRI PERIODS TO TO TO TO TO TO TO 12Z MON 00Z TUE 12Z TUE 00Z WED 00Z THU 00Z FRI 00Z SAT FORECAST HOUR (12) (24) (36) (48) (72) (96) (120) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - LOCATION KT HIBERNIA OILFD 34 99 X(99) X(99) X(99) X(99) X(99) X(99) $$ FORECASTER REINHART/ZELINSKY
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Post-Tropical Cyclone Epsilon Public Advisory Number 29
2020-10-26 03:34:17| National Hurricane Center (Atlantic)
Issued at 300 AM GMT Mon Oct 26 2020 000 WTNT32 KNHC 260234 TCPAT2 BULLETIN Post-Tropical Cyclone Epsilon Advisory Number 29 NWS National Hurricane Center Miami FL AL272020 300 AM GMT Mon Oct 26 2020 ...EPSILON BECOMES A POWERFUL POST-TROPICAL CYCLONE OVER THE NORTH ATLANTIC... ...THIS WILL BE THE LAST NHC ADVISORY ON EPSILON... SUMMARY OF 300 AM GMT...0300 UTC...INFORMATION ---------------------------------------------- LOCATION...48.6N 38.8W ABOUT 675 MI...1090 KM ENE OF CAPE RACE NEWFOUNDLAND MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H PRESENT MOVEMENT...NE OR 55 DEGREES AT 46 MPH...74 KM/H MINIMUM CENTRAL PRESSURE...968 MB...28.59 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 300 AM GMT (0300 UTC), the center of Post-Tropical Cyclone Epsilon was located near latitude 48.6 North, longitude 38.8 West. The post-tropical cyclone is moving toward the northeast near 46 mph (74 km/h), and this general motion is expected to continue through Monday night. Maximum sustained winds are near 70 mph (110 km/h) with higher gusts. Little change in strength is forecast during the next day or so before the post-tropical cyclone is absorbed by a large extratropical low pressure system on Monday night or early Tuesday. Tropical-storm-force winds extend outward up to 450 miles (720 km) from the center. The estimated minimum central pressure is 968 mb (28.59 inches). HAZARDS AFFECTING LAND ---------------------- SURF: Large swells generated by Epsilon will affect Bermuda, the Bahamas, the Greater Antilles, the Leeward Islands, portions of the east coast of the United States, and Atlantic Canada through Monday. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- This is the last public advisory issued by the National Hurricane Center on Epsilon. 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 online at ocean.weather.gov/shtml/NFDHSFAT1.php $$ Forecaster Reinhart/Zelinsky
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Tropical Storm Zeta Public Advisory Number 5A
2020-10-26 00:33:15| National Hurricane Center (Atlantic)
Issued at 800 PM EDT Sun Oct 25 2020 000 WTNT33 KNHC 252333 TCPAT3 BULLETIN Tropical Storm Zeta Intermediate Advisory Number 5A NWS National Hurricane Center Miami FL AL282020 800 PM EDT Sun Oct 25 2020 ...ZETA EXPECTED TO BRING HURRICANE CONDITIONS AND STORM SURGE TO PORTIONS OF THE YUCATAN PENINSULA BY LATE MONDAY... SUMMARY OF 800 PM EDT...0000 UTC...INFORMATION ---------------------------------------------- LOCATION...18.0N 83.6W ABOUT 275 MI...445 KM SE OF COZUMEL MEXICO ABOUT 280 MI...455 KM SSE OF THE WESTERN TIP OF CUBA MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H PRESENT MOVEMENT...STATIONARY MINIMUM CENTRAL PRESSURE...997 MB...29.44 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Warning is in effect for... * Tulum to Rio Lagartos Mexico * Cozumel A Tropical Storm Warning is in effect for... * Pinar del Rio Cuba 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 Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area within 36 hours. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 800 PM EDT (0000 UTC), the center of Tropical Storm Zeta was located near latitude 18.0 North, longitude 83.6 West. Zeta has been meandering recently, but a northwestward motion is expected over the next couple of days, followed by a turn to the north. On the forecast track, the center of Zeta will move near or over the northern Yucatan Peninsula or the Yucatan Channel late Monday, move over the southern Gulf of Mexico on Tuesday, and approach the northern Gulf Coast on Wednesday. Maximum sustained winds are near 50 mph (85 km/h) with higher gusts. Strengthening is forecast during the next couple of days, and Zeta is expected to become a hurricane before it moves near or over the Yucatan Peninsula late Monday. Tropical-storm-force winds extend outward up to 115 miles (185 km) from the center. The minimum central pressure based on data from the NOAA Hurricane Hunter aircraft is 997 mb (29.44 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Tropical Storm Zeta can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT3, WMO header WTNT43 KNHC, and on the web at www.hurricanes.gov/text/MIATCDAT3.shtml. RAINFALL: Rainfall totals of 4 to 8 inches with local amounts of 12 inches are possible through Wednesday along and east-northeast of Zetas track from Jamaica, the Cayman Islands, central to western Cuba, and the northeast Yucatan peninsula of Mexico. Additional rainfall amounts of 1 to 3 inches with local amounts of 5 inches possible across southern Florida and the Keys over the next 2 days, with isolated storm totals of 8 inches. By Wednesday, heavy rainfall associated with Zeta will begin to affect the central Gulf Coast region, which may lead to flash flooding in urban areas. WIND: Hurricane conditions are expected within the Hurricane Warning area in the Yucatan Peninsula by late Monday. Tropical storm conditions could occur in the warning area in western Cuba on Monday. STORM SURGE: A dangerous storm surge will raise water levels by as much as 1-3 feet above normal tide levels along the immediate coast in the Hurricane Warning area near and to the north of where the center makes landfall in the Yucatan Peninsula. NEXT ADVISORY ------------- Next complete advisory at 1100 PM EDT. $$ Forecaster Cangialosi
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Tropical Storm Zeta Public Advisory Number 5
2020-10-25 22:28:42| National Hurricane Center (Atlantic)
Issued at 500 PM EDT Sun Oct 25 2020 000 WTNT33 KNHC 252127 CCA TCPAT3 BULLETIN Tropical Storm Zeta Advisory Number 5...Corrected NWS National Hurricane Center Miami FL AL282020 500 PM EDT Sun Oct 25 2020 Corrected Present Movement ...ZETA STRONGER... ...LIKELY TO BECOME A HURRICANE BY THE TIME IT NEARS THE YUCATAN PENINSULA... SUMMARY OF 500 PM EDT...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...17.7N 83.4W ABOUT 305 MI...490 KM SSE OF THE WESTERN TIP OF CUBA ABOUT 300 MI...480 KM SE OF COZUMEL MEXICO MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H PRESENT MOVEMENT...STATIONARY MINIMUM CENTRAL PRESSURE...999 MB...29.50 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The government of Mexico has issued a Hurricane Warning for the Yucatan Peninsula from Tulum to Rio Lagartos, including Cozumel. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Warning is in effect for... * Tulum to Rio Lagartos Mexico * Cozumel A Tropical Storm Warning is in effect for... * Pinar del Rio Cuba 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 Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area within 36 hours. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 500 PM EDT (2100 UTC), the center of Tropical Storm Zeta was located near latitude 17.7 North, longitude 83.4 West. Zeta has been meandering or nearly stationary, but a generally northwestward motion is expected over the next couple of days. On the forecast track, the center of Zeta will pass south of western Cuba early Monday and move near or over the northern Yucatan Peninsula or the Yucatan Channel late Monday, move into the southern Gulf of Mexico on Tuesday, and reach the central Gulf of Mexico by late Tuesday. Reports from a NOAA Hurricane Hunter aircraft indicate that the maximum sustained winds have increased near 50 mph (85 km/h) with higher gusts. Strengthening is forecast during the next 48 hours, and Zeta is expected to become a hurricane before it moves near or over the Yucatan Peninsula late Monday. Tropical-storm-force winds extend outward up to 115 miles (185 km) from the center. The minimum central pressure estimated from NOAA Hurricane Hunter aircraft observations is 999 mb (29.50 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Tropical Storm Zeta can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT3 and WMO header WTNT43 KNHC. RAINFALL: Rainfall totals of 4 to 8 inches with local amounts of 12 inches are possible through Wednesday along and east-northeast of Zetas track from Jamaica, the Cayman Islands, central to western Cuba, and the northeast Yucatan peninsula of Mexico. Additional rainfall amounts of 1 to 3 inches with local amounts of 5 inches possible across Southern Florida and the Keys over the next 2 days, with isolated storm totals of 8 inches. By Wednesday, heavy rainfall associated with Zeta will begin to affect the central Gulf Coast region, which may lead to flash flooding in urban areas. WIND: Hurricane conditions are expected within the Hurricane Warning area in the Yucatan Peninsula by late Monday. Tropical storm conditions could occur in the warning area in Western Cuba on Monday. STORM SURGE: A dangerous storm surge will raise water levels by as much as 1-3 feet above normal tide levels along the immediate coast in the Hurricane Warning area near and to the north of where the center makes landfall in the Yucatan Peninsula. NEXT ADVISORY ------------- Next intermediate advisory at 800 PM EDT. Next complete advisory at 1100 PM EDT. $$ Forecaster Pasch
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