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Hurricane Grace Public Advisory Number 29A

2021-08-20 19:48:09| National Hurricane Center (Atlantic)

Issued at 100 PM CDT Fri Aug 20 2021 000 WTNT32 KNHC 201748 TCPAT2 BULLETIN Hurricane Grace Intermediate Advisory Number 29A NWS National Hurricane Center Miami FL AL072021 100 PM CDT Fri Aug 20 2021 ...GRACE STRENGTHENS A LITTLE MORE... ...EXPECTED TO MAKE LANDFALL ALONG EASTERN MAINLAND MEXICO TONIGHT... SUMMARY OF 100 PM CDT...1800 UTC...INFORMATION ---------------------------------------------- LOCATION...20.6N 94.5W ABOUT 145 MI...230 KM NE OF VERACRUZ MEXICO ABOUT 185 MI...300 KM E OF TUXPAN MEXICO MAXIMUM SUSTAINED WINDS...90 MPH...150 KM/H PRESENT MOVEMENT...W OR 265 DEGREES AT 10 MPH...17 KM/H MINIMUM CENTRAL PRESSURE...979 MB...28.91 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Warning is in effect for... * The coast of mainland Mexico from Puerto Veracruz to Cabo Rojo A Tropical Storm Warning is in effect for... * The coast of mainland Mexico from north of Cabo Rojo to Barra del Tordo A Hurricane Warning means that hurricane conditions are expected somewhere within the warning area, in this case within 12 to 24 hours. Preparations to protect life and property should be rushed to completion. A Tropical Storm Warning means that tropical storm conditions are expected somewhere withing the warning area, in this case within 12 to 24 hours. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 100 PM CDT (1800 UTC), the center of Hurricane Grace was located near latitude 20.6 North, longitude 94.5 West. Grace is moving toward the west near 10 mph (17 km/h). This general motion at a slightly slower forward speed is expected during the next day or so. On the forecast track, the center of Grace is forecast to move across the southwestern Gulf of Mexico through this evening, and then make landfall along the coast of mainland Mexico within the hurricane warning area tonight. Data from an Air Force Reserve Hurricane Hunter aircraft indicate that maximum sustained winds have increased to near 90 mph (150 km/h) with higher gusts. Strengthening is forecast until Grace makes landfall, with rapid weakening expected as Grace moves inland over the mountains of central Mexico. Hurricane-force winds extend outward up to 30 miles (45 km) from the center and tropical-storm-force winds extend outward up to 185 miles (295 km). The estimated minimum central pressure of 979 mb (28.91 inches) is based on data collected by the aircraft. HAZARDS AFFECTING LAND ---------------------- Key messages for Grace can be found in the Tropical Cyclone Discussion under AWIPS header MIABOUT 185 MI...300 KM E OF TUXPAN MEXICOATCDAT2, WMO header WTNT42 KNHC and on the web at www.hurricanes.gov/graphics_at2.shtml?key_messages. STORM SURGE: A dangerous storm surge will raise water levels by as much as 4 to 6 ft above normal tide levels along the immediate coast within the hurricane warning area near and north of where the center makes landfall tonight. Near the coast, the surge will be accompanied by large and destructive waves. WIND: Hurricane conditions are expected within portions of the hurricane warning area in mainland Mexico by late this evening, with tropical storm conditions expected later this afternoon. Tropical storm conditions are expected within the tropical storm warning area in mainland Mexico by late this afternoon. RAINFALL: Grace is expected to produce the following rainfall amounts: Over Veracruz, Puebla, Tlaxcala, Hidalgo, northern Queretaro, and eastern San Luis Potosi...6 to 12 inches with isolated maximum totals of 18 inches are expected today through Sunday. Heavy rainfall from Grace will result in areas of flash and urban flooding as well as mudslides. SURF: High surf generated by Grace will affect the southern Gulf of Mexico coastline today and continue into the weekend. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next complete advisory at 400 PM CDT. $$ Forecaster Reinhart/Cangialosi

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Tropical Storm Henri Public Advisory Number 19A

2021-08-20 19:44:11| National Hurricane Center (Atlantic)

Issued at 200 PM EDT Fri Aug 20 2021 000 WTNT33 KNHC 201744 TCPAT3 BULLETIN Tropical Storm Henri Intermediate Advisory Number 19A NWS National Hurricane Center Miami FL AL082021 200 PM EDT Fri Aug 20 2021 ...HENRI ALMOST A HURRICANE... ...STORM SURGE AND HURRICANE WATCHES ARE IN EFFECT FOR PORTIONS OF THE NORTHEASTERN UNITED STATES... SUMMARY OF 200 PM EDT...1800 UTC...INFORMATION ---------------------------------------------- LOCATION...30.8N 73.8W ABOUT 320 MI...515 KM SSE OF CAPE HATTERAS NORTH CAROLINA ABOUT 720 MI...1160 KM S OF MONTAUK POINT NEW YORK MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H PRESENT MOVEMENT...NNW OR 335 DEGREES AT 6 MPH...9 KM/H MINIMUM CENTRAL PRESSURE...994 MB...29.35 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Storm Surge Watch is in effect for... * South Shore of Long Island from East Rockaway Inlet to Montauk * North Shore of Long Island from Kings Point to Montauk * Flushing New York to Sagamore Beach Massachusetts * Nantucket, Martha's Vineyard, and Block Island A Hurricane Watch is in effect for... * South Shore of Long Island from Fire Island Inlet to Montauk * North Shore of Long Island from Port Jefferson Harbor to Montauk * New Haven Connecticut to Sagamore Beach Massachusetts * Nantucket, Martha's Vineyard, and Block Island A Tropical Storm Watch is in effect for... * West of Fire Island Inlet to East Rockaway Inlet New York * West of Port Jefferson Harbor New York * West of New Haven Connecticut A Storm Surge Watch means there is a possibility of life- threatening inundation, from rising water moving inland from the coastline, in the indicated locations during the next 48 hours. For a depiction of areas at risk, please see the National Weather Service Storm Surge Watch/Warning Graphic, available at hurricanes.gov. 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 Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours. Interests elsewhere in the northeastern U.S. and Atlantic Canada should monitor the progress of Henri. Additional watches or warnings will likely be required later today. 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 OUTLOOK ---------------------- At 200 PM EDT (1800 UTC), the center of Tropical Storm Henri was located near latitude 30.8 North, longitude 73.8 West. Henri is moving toward the north-northwest near 6 mph (9 km/h). A turn toward the north is expected by tonight, and Henri is forecast to accelerate in that direction through early Sunday. On the forecast track, Henri is expected to make landfall in southern New England by late Sunday. Maximum sustained winds have increased to near 70 mph (110 km/h) with higher gusts. Additional strengthening is forecast during the next couple of days, and Henri is expected to become a hurricane by Saturday and be at or near hurricane strength when it makes landfall in southern New England. Tropical-storm-force winds extend outward up to 90 miles (150 km) from the center. The estimated minimum central pressure is 994 mb (29.35 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Henri can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT3, WMO header WTNT43 KNHC and on the web at hurricanes.gov/graphics_at3.shtml?key_messages. STORM SURGE: The combination of a dangerous storm surge and the tide will cause normally dry areas near the coast to be flooded by rising waters moving inland from the shoreline. The water could reach the following heights above ground somewhere in the indicated areas if the peak surge occurs at the time of high tide... Watch Hill, RI to Sagamore Beach, MA including Narragansett Bay, Buzzards Bay, Vineyard Sound, Nantucket Sound, and Cape Cod Bay...3-5 ft East Rockaway Inlet, NY to Montauk Point, NY...2-4 ft North shore of Long Island...2-4 ft Flushing, NY to Watch Hill, RI...2-4 ft Cape May, NJ to East Rockaway Inlet, NY...1-3 ft The deepest water will occur along the immediate coast in areas of onshore winds, where the surge will be accompanied by large and dangerous waves. Surge-related flooding depends on the relative timing of the surge and the tidal cycle, and can vary greatly over short distances. For information specific to your area, please see products issued by your local National Weather Service forecast office. WIND: Hurricane conditions are possible within the hurricane watch area on Sunday, with tropical storm conditions possible by early Sunday. Tropical storm conditions are possible within the tropical storm watch area on Sunday. RAINFALL: Henri may produce rainfall amounts of 2 to 5 inches over eastern Long Island and southern New England Sunday into Monday, with isolated maximum totals near 8 inches. Heavy rainfall from Henri will result in flash, urban, and small stream flooding, along with the potential for widespread minor and isolated moderate river flooding. SURF: Swells generated by Henri should continue to affect Bermuda during the next day or so. Swells are expected to increase across much of the east coast of the U.S. and Atlantic Canada today and into the weekend. These swells could cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next complete advisory at 500 PM EDT. $$ Forecaster Cangialosi

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Hurricane Grace Public Advisory Number 29

2021-08-20 16:47:04| National Hurricane Center (Atlantic)

Issued at 1000 AM CDT Fri Aug 20 2021 000 WTNT32 KNHC 201447 TCPAT2 BULLETIN Hurricane Grace Advisory Number 29 NWS National Hurricane Center Miami FL AL072021 1000 AM CDT Fri Aug 20 2021 ...GRACE EXPECTED TO CONTINUE STRENGTHENING... ...PREPARATIONS TO PROTECT LIFE AND PROPERTY SHOULD BE RUSHED TO COMPLETION IN THE HURRICANE WARNING AREA... SUMMARY OF 1000 AM CDT...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...20.6N 94.3W ABOUT 200 MI...325 KM E OF TUXPAN MEXICO ABOUT 155 MI...250 KM NE OF VERACRUZ MEXICO MAXIMUM SUSTAINED WINDS...85 MPH...140 KM/H PRESENT MOVEMENT...W OR 265 DEGREES AT 14 MPH...22 KM/H MINIMUM CENTRAL PRESSURE...982 MB...29.00 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Warning is in effect for... * The coast of mainland Mexico from Puerto Veracruz to Cabo Rojo A Tropical Storm Warning is in effect for... * The coast of mainland Mexico from north of Cabo Rojo to Barra del Tordo A Hurricane Warning means that hurricane conditions are expected somewhere within the warning area, in this case within 12 to 24 hours. Preparations to protect life and property should be rushed to completion. A Tropical Storm Warning means that tropical storm conditions are expected somewhere withing the warning area, in this case within 12 to 24 hours. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 1000 AM CDT (1500 UTC), the center of Hurricane Grace was located near latitude 20.6 North, longitude 94.3 West. Grace is moving toward the west near 14 mph (22 km/h). This general motion at a slightly slower forward speed is expected during the next day or so. On the forecast track, the center of Grace is forecast to move across the southwestern Gulf of Mexico this afternoon, and then make landfall along the coast of mainland Mexico within the hurricane warning area this evening or tonight. Data from an Air Force Reserve Hurricane Hunter aircraft indicate that maximum sustained winds are near 85 mph (140 km/h) with higher gusts. Strengthening is forecast until Grace makes landfall, with rapid weakening expected as Grace moves inland over the mountains of central Mexico. Hurricane-force winds extend outward up to 30 miles (45 km) from the center and tropical-storm-force winds extend outward up to 185 miles (295 km). The estimated minimum central pressure is 982 mb (29.00 inches) is based on data collected by the aircraft. HAZARDS AFFECTING LAND ---------------------- Key messages for Grace can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT2, WMO header WTNT42 KNHC and on the web at www.hurricanes.gov/graphics_at2.shtml?key_messages. STORM SURGE: A dangerous storm surge will raise water levels by as much as 4 to 6 ft above normal tide levels along the immediate coast within the hurricane warning area near and north of where the center makes landfall tonight. Near the coast, the surge will be accompanied by large and destructive waves. WIND: Hurricane conditions are expected within portions of the hurricane warning area in mainland Mexico by late this evening, with tropical storm conditions expected this afternoon. Tropical storm conditions are expected within the tropical storm warning area in mainland Mexico by late this afternoon. RAINFALL: Grace is expected to produce the following rainfall amounts: Over Veracruz, Puebla, Tlaxcala, Hidalgo, northern Queretaro, and eastern San Luis Potosi...6 to 12 inches with isolated maximum totals of 18 inches are expected today through Sunday. Heavy rainfall from Grace will result in areas of flash and urban flooding as well as mudslides. SURF: High surf generated by Grace will affect the southern Gulf of Mexico coastline today and continue into the weekend. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next intermediate advisory at 100 PM CDT. Next complete advisory at 400 PM CDT. $$ Forecaster Reinhart/Cangialosi

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Hurricane Grace Forecast Advisory Number 29

2021-08-20 16:46:39| National Hurricane Center (Atlantic)

Issued at 1500 UTC FRI AUG 20 2021 000 WTNT22 KNHC 201446 TCMAT2 HURRICANE GRACE FORECAST/ADVISORY NUMBER 29 NWS NATIONAL HURRICANE CENTER MIAMI FL AL072021 1500 UTC FRI AUG 20 2021 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... NONE. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A HURRICANE WARNING IS IN EFFECT FOR... * THE COAST OF MAINLAND MEXICO FROM PUERTO VERACRUZ TO CABO ROJO A TROPICAL STORM WARNING IS IN EFFECT FOR... * THE COAST OF MAINLAND MEXICO FROM NORTH OF CABO ROJO TO BARRA DEL TORDO A HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA...IN THIS CASE WITHIN 12 TO 24 HOURS. PREPARATIONS TO PROTECT LIFE AND PROPERTY SHOULD BE RUSHED TO COMPLETION. A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHING THE WARNING AREA...IN THIS CASE WITHIN 12 TO 24 HOURS. HURRICANE CENTER LOCATED NEAR 20.6N 94.3W AT 20/1500Z POSITION ACCURATE WITHIN 20 NM PRESENT MOVEMENT TOWARD THE WEST OR 265 DEGREES AT 12 KT ESTIMATED MINIMUM CENTRAL PRESSURE 982 MB EYE DIAMETER 20 NM MAX SUSTAINED WINDS 75 KT WITH GUSTS TO 90 KT. 64 KT....... 25NE 0SE 0SW 0NW. 50 KT....... 50NE 30SE 30SW 30NW. 34 KT.......160NE 90SE 80SW 100NW. 12 FT SEAS..210NE 60SE 60SW 180NW. 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 20.6N 94.3W AT 20/1500Z AT 20/1200Z CENTER WAS LOCATED NEAR 20.6N 93.7W FORECAST VALID 21/0000Z 20.4N 95.9W MAX WIND 90 KT...GUSTS 110 KT. 64 KT... 25NE 15SE 10SW 20NW. 50 KT... 50NE 30SE 30SW 40NW. 34 KT...140NE 80SE 70SW 110NW. FORECAST VALID 21/1200Z 20.0N 98.2W...INLAND MAX WIND 55 KT...GUSTS 65 KT. 50 KT... 20NE 0SE 0SW 20NW. 34 KT...100NE 60SE 30SW 70NW. FORECAST VALID 22/0000Z 19.4N 101.1W...INLAND MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 30NE 0SE 0SW 30NW. FORECAST VALID 22/1200Z...DISSIPATED REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 20.6N 94.3W INTERMEDIATE PUBLIC ADVISORY...WTNT32 KNHC/MIATCPAT2...AT 20/1800Z NEXT ADVISORY AT 20/2100Z $$ FORECASTER REINHART/CANGIALOSI

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Tropical Storm Henri Public Advisory Number 19

2021-08-20 16:44:35| National Hurricane Center (Atlantic)

Issued at 1100 AM EDT Fri Aug 20 2021 000 WTNT33 KNHC 201444 TCPAT3 BULLETIN Tropical Storm Henri Advisory Number 19 NWS National Hurricane Center Miami FL AL082021 1100 AM EDT Fri Aug 20 2021 ...AIR FORCE HURRICANE HUNTERS FIND HENRI STEADY IN STRENGTH... ...STORM SURGE AND HURRICANE WATCHES ARE IN EFFECT FOR PORTIONS OF THE NORTHEASTERN UNITED STATES... SUMMARY OF 1100 AM EDT...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...30.4N 73.7W ABOUT 345 MI...560 KM SSE OF CAPE HATTERAS NORTH CAROLINA ABOUT 745 MI...1200 KM S OF MONTAUK POINT NEW YORK MAXIMUM SUSTAINED WINDS...65 MPH...100 KM/H PRESENT MOVEMENT...NW OR 305 DEGREES AT 7 MPH...11 KM/H MINIMUM CENTRAL PRESSURE...996 MB...29.42 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The Storm Surge Watch has been extended slightly westward to Flushing, New York, including adjacent areas of western Long Island Sound and the East River. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Storm Surge Watch is in effect for... * South Shore of Long Island from East Rockaway Inlet to Montauk * North Shore of Long Island from Kings Point to Montauk * Flushing New York to Sagamore Beach Massachusetts * Nantucket, Martha's Vineyard, and Block Island A Hurricane Watch is in effect for... * South Shore of Long Island from Fire Island Inlet to Montauk * North Shore of Long Island from Port Jefferson Harbor to Montauk * New Haven Connecticut to Sagamore Beach Massachusetts * Nantucket, Martha's Vineyard, and Block Island A Tropical Storm Watch is in effect for... * West of Fire Island Inlet to East Rockaway Inlet New York * West of Port Jefferson Harbor New York * West of New Haven Connecticut A Storm Surge Watch means there is a possibility of life- threatening inundation, from rising water moving inland from the coastline, in the indicated locations during the next 48 hours. For a depiction of areas at risk, please see the National Weather Service Storm Surge Watch/Warning Graphic, available at hurricanes.gov. 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 Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours. Interests elsewhere in the northeastern U.S. and Atlantic Canada should monitor the progress of Henri. Additional watches or warnings will likely be required later today. 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 OUTLOOK ---------------------- At 1100 AM EDT (1500 UTC), the center of Tropical Storm Henri was located near latitude 30.4 North, longitude 73.7 West. Henri is moving toward the northwest near 7 mph (11 km/h). A turn toward the north is expected by tonight, and Henri is forecast to accelerate in that direction through early Sunday. On the forecast track, Henri is expected to make landfall in southern New England by late Sunday. Maximum sustained winds are near 65 mph (100 km/h) with higher gusts. Strengthening is forecast during the next couple of days, and Henri is expected to become a hurricane by Saturday and be at or near hurricane strength when it makes landfall in southern New England. Tropical-storm-force winds extend outward up to 90 miles (150 km) from the center. The estimated minimum central pressure based on data from the Air Force Hurricane Hunters is 996 mb (29.42 inches). HAZARDS AFFECTING LAND ---------------------- STORM SURGE: The combination of a dangerous storm surge and the tide will cause normally dry areas near the coast to be flooded by rising waters moving inland from the shoreline. The water could reach the following heights above ground somewhere in the indicated areas if the peak surge occurs at the time of high tide... Watch Hill, RI to Sagamore Beach, MA including Narragansett Bay, Buzzards Bay, Vineyard Sound, Nantucket Sound, and Cape Cod Bay...3-5 ft East Rockaway Inlet, NY to Montauk Point, NY...2-4 ft North shore of Long Island...2-4 ft Flushing, NY to Watch Hill, RI...2-4 ft Cape May, NJ to East Rockaway Inlet, NY...1-3 ft The deepest water will occur along the immediate coast in areas of onshore winds, where the surge will be accompanied by large and dangerous waves. Surge-related flooding depends on the relative timing of the surge and the tidal cycle, and can vary greatly over short distances. For information specific to your area, please see products issued by your local National Weather Service forecast office. WIND: Hurricane conditions are possible within the hurricane watch area on Sunday, with tropical storm conditions possible by early Sunday. Tropical storm conditions are possible within the tropical storm watch area on Sunday. RAINFALL: Henri may produce rainfall amounts of 2 to 5 inches over eastern Long Island and southern New England Sunday into Monday, with isolated maximum totals near 8 inches. Heavy rainfall from Henri will result in flash, urban, and small stream flooding, along with the potential for widespread minor and isolated moderate river flooding. SURF: Swells generated by Henri should continue to affect Bermuda during the next day or so. Swells are expected to increase across much of the east coast of the U.S. and Atlantic Canada today and into the weekend. These swells could cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next intermediate advisory at 200 PM EDT. Next complete advisory at 500 PM EDT. $$ Forecaster Cangialosi

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