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Summary for Tropical Storm Ida (AT4/AL092021)
2021-08-27 13:55:45| National Hurricane Center (Atlantic)
...AIR FORCE AND NOAA AIRCRAFT FIND IDA STRENGTHENING OVER THE NORTHWEST CARIBBEAN SEA... As of 8:00 AM EDT Fri Aug 27 the center of Ida was located near 20.3, -81.7 with movement NW at 15 mph. The minimum central pressure was 996 mb with maximum sustained winds of about 60 mph.
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Tropical Storm Ida Public Advisory Number 4A
2021-08-27 13:55:45| National Hurricane Center (Atlantic)
Issued at 800 AM EDT Fri Aug 27 2021 000 WTNT34 KNHC 271155 TCPAT4 BULLETIN Tropical Storm Ida Intermediate Advisory Number 4A NWS National Hurricane Center Miami FL AL092021 800 AM EDT Fri Aug 27 2021 ...AIR FORCE AND NOAA AIRCRAFT FIND IDA STRENGTHENING OVER THE NORTHWEST CARIBBEAN SEA... SUMMARY OF 800 AM EDT...1200 UTC...INFORMATION ---------------------------------------------- LOCATION...20.3N 81.7W ABOUT 75 MI...125 KM NNW OF GRAND CAYMAN ABOUT 115 MI...185 KM SE OF THE ISLE OF YOUTH MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H PRESENT MOVEMENT...NW OR 320 DEGREES AT 15 MPH...24 KM/H MINIMUM CENTRAL PRESSURE...996 MB...29.41 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The government of the Cayman Islands has discontinued the Tropical Storm Warning for Grand Cayman. The Tropical Storm Warning remains in effect for Little Cayman and Cayman Brac. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Storm Surge Watch is in effect for... * Sabine Pass to Alabama/Florida border * Vermilion Bay, Lake Borgne, Lake Pontchartrain, Lake Maurepas, and Mobile Bay A Hurricane Watch is in effect for... * Cameron, Louisiana to the Mississippi/Alabama border * Lake Pontchartrain, Lake Maurepas, and Metropolitan New Orleans A Tropical Storm Warning is in effect for... * Little Cayman and Cayman Brac * Cuban provinces of Matanzas, Mayabeque, Havana, Artemisa, Pinar del Rio, and the Isle of Youth A Tropical Storm Watch is in effect for... * Mississippi/Alabama border to the Alabama/Florida border. 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 Warning means that tropical storm conditions are expected somewhere within the warning area within 36 hours. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours. Interests elsewhere in central and western Cuba and elsewhere along the northern U.S. Gulf coast should monitor the progress of this system. Hurricane warnings will likely be required for portions of the northern Gulf coast later today. Interests in the Dry Tortugas should also monitor the progress of Ida. For storm information specific to your area in the United States, including possible inland watches and warnings, please monitor products issued by your local National Weather Service forecast office. For storm information specific to your area outside of the United States, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 800 AM EDT (1200 UTC), the center of Tropical Storm Ida was located by reconnaissance aircraft and weather radar on Grand Cayman near latitude 20.3 North, longitude 81.7 West. Ida is moving toward the northwest near 15 mph (24 km/h) and this general motion should continue over the next few days. On the forecast track, the center of Ida will move away from the Cayman Islands this morning, pass near or over the Isle of Youth and western Cuba later today, and move over the southeastern and central Gulf of Mexico tonight and Saturday. The system is forecast to approach the U.S. northern Gulf coast on Sunday. Data from Air Force Reserve and NOAA reconnaissance aircraft indicate that the maximum sustained winds have increased to near 60 mph (95 km/h) with higher gusts, and additional steady to rapid strengthening is expected during the next few days. Ida is forecast to become a hurricane over the southeastern Gulf of Mexico, and to be at or near major hurricane strength when it approaches the northern Gulf coast. Tropical-storm-force winds extend outward up to 80 miles (130 km) from the center. The estimated minimum central pressure from reconnaissance aircraft data is 996 mb (29.41 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Tropical Storm Ida can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT4, WMO header WTNT44 KNHC, and on the web at hurricanes.gov/graphics_at4.shtml?key_messages. STORM SURGE: A dangerous storm surge will raise water levels by as much as 2 to 4 feet above normal tide levels in areas of onshore winds along the immediate coast of the Isle of Youth and near and to the east of where the center crosses the coast of western Cuba. Near the coast, the surge will be accompanied by large and destructive waves. 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... Morgan City, LA to Ocean Springs, MS including Lake Borgne...7-11 ft Rockefeller Wildlife Refuge, LA to Morgan City, LA including Vermilion Bay...4-7 ft Ocean Springs, MS to MS/AL border...4-7 ft MS/AL border to AL/FL border including Mobile Bay...3-5 ft Lake Pontchartrain...4-6 ft Lake Maurepas...3-5 ft Sabine Pass to Rockefeller Wildlife Refuge, LA...2-4 ft Overtopping of local levees outside of the Hurricane and Storm Damage Risk Reduction System is possible where local inundation values may be higher than those shown above. The deepest water will occur along the immediate coast near and to the east of the landfall location, 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: Tropical storm conditions are expected on Little Cayman and Cayman Brac this morning, and are expected to reach the Isle of Youth and portions of western Cuba in the warning area later today. Hurricane conditions are possible in the hurricane watch area along the northern Gulf coast late Saturday night or Sunday and tropical storm conditions are possible in the watch area late Saturday night or Sunday. RAINFALL: Ida is expected to produce total rainfall accumulations of 6 to 10 inches with maximum totals of 15 inches across Jamaica. Rainfall totals of 8 to 12 inches with isolated maximum amounts of 20 inches are expected across the Cayman Islands and western Cuba, including the Isle of Youth. These rainfall amounts may produce life-threatening flash floods and mudslides. As Ida approaches the central Gulf Coast Sunday afternoon, total rainfall accumulations of 8 to 16 inches with isolated maximum amounts of 20 inches are possible from southeast Louisiana to coastal Mississippi and Alabama through Monday morning. Ida is forecast to turn northeast as it moves inland later Monday with rainfall totals of 4 to 8 inches possible across southern and central Mississippi. This is likely to result in considerable flash, urban, small stream, and riverine flooding. SURF: Swells generated by this system will affect Jamaica, the Cayman Islands and Cuba tonight and Friday. Swells will begin reaching portions of the northern Gulf coast Saturday night or early Sunday. 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 1100 AM EDT. $$ Forecaster Brown
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Tropical Storm Nora Graphics
2021-08-27 13:36:46| National Hurricane Center (East Pacific)
5-Day Uncertainty Track last updated Fri, 27 Aug 2021 11:36:46 GMT Wind Speed Probabilities last updated Fri, 27 Aug 2021 09:49:55 GMT
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Summary for Tropical Storm Nora (EP4/EP142021)
2021-08-27 13:36:44| National Hurricane Center (East Pacific)
...HEAVY RAINS FROM NORA SPREADING ONSHORE THE COASTS OF OAXACA, GUERRERO, AND MICHOACAN... As of 7:00 AM CDT Fri Aug 27 the center of Nora was located near 14.8, -103.7 with movement WNW at 12 mph. The minimum central pressure was 999 mb with maximum sustained winds of about 50 mph.
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nora
Tropical Storm Nora Public Advisory Number 7A
2021-08-27 13:36:44| National Hurricane Center (East Pacific)
Issued at 700 AM CDT Fri Aug 27 2021 076 WTPZ34 KNHC 271136 TCPEP4 BULLETIN Tropical Storm Nora Intermediate Advisory Number 7A NWS National Hurricane Center Miami FL EP142021 700 AM CDT Fri Aug 27 2021 ...HEAVY RAINS FROM NORA SPREADING ONSHORE THE COASTS OF OAXACA, GUERRERO, AND MICHOACAN... SUMMARY OF 700 AM CDT...1200 UTC...INFORMATION ---------------------------------------------- LOCATION...14.8N 103.7W ABOUT 240 MI...390 KM SSW OF LAZARO CARDENAS MEXICO ABOUT 305 MI...490 KM S OF MANZANILLO MEXICO MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H PRESENT MOVEMENT...WNW OR 300 DEGREES AT 12 MPH...19 KM/H MINIMUM CENTRAL PRESSURE...999 MB...29.50 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Watch is in effect for... * Lazaro Cardenas to Cabo Corrientes Mexico A Tropical Storm Warning is in effect for... * Tecpan de Galeana to Cabo Corrientes Mexico A Tropical Storm Watch is in effect for... * North of Cabo Corrientes to San Blas Mexico 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 Warning means that tropical storm conditions are expected somewhere within the warning area within 36 hours. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours. Interests elsewhere along the west-central coast of Mexico and southern portions of Baja California Sur should monitor the progress of Nora. Additional watches and warnings will likely be required for portions of these areas later today or tonight. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 700 AM CDT (1200 UTC), the center of Tropical Storm Nora was located near latitude 14.8 North, longitude 103.7 West. Nora is moving toward the west-northwest near 12 mph (19 km/h). A turn toward the northwest is expected later today, followed by a northwestward or north-northwestward motion on Saturday and Sunday. On the forecast track, the center of Nora will approach the southwestern coast of Mexico today and tonight and pass very near the coast Saturday and Saturday night. Nora will then approach the southern portion of Baja California Sur on Sunday. Maximum sustained winds are near 50 mph (85 km/h) with higher gusts. Strengthening is forecast during the next few days, and Nora is expected to become a hurricane on Saturday. Nora remains a large tropical storm, with tropical-storm-force winds extending outward up to 230 miles (370 km) from the center. The estimated minimum central pressure is 999 mb (29.50 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Nora can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDEP4, WMO header WTPZ44 KNHC, and on the web at hurricanes.gov/graphics_ep4.shtml?key_messages. WIND: Hurricane conditions are possible within the hurricane watch area Saturday, with tropical storm conditions beginning later today. Tropical storm conditions are expected within the tropical storm warning area beginning this morning. Tropical storm conditions are possible within the tropical storm watch area beginning on Saturday. RAINFALL: Tropical Storm Nora is expected to produce heavy rains over coastal sections of the Mexican states of Oaxaca, Guerrero, Michoacan, Colima, and Jalisco. Rainfall totals of 8 to 12 inches are forecast through this weekend with isolated maximum amounts of 20 inches possible. Life-threatening flash flooding and mudslides may occur. SURF: Swells generated by Nora are affecting the southern coast of Mexico and will spread northward to the southwestern coast of Mexico later today and 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 1000 AM CDT. $$ Forecaster Berg
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