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Summary for Tropical Storm Ida (AT4/AL092021)
2021-08-27 07:50:10| National Hurricane Center (Atlantic)
...CENTER OF IDA PASSING THROUGH THE CAYMAN ISLANDS... As of 2:00 AM EDT Fri Aug 27 the center of Ida was located near 19.4, -80.9 with movement NW at 12 mph. The minimum central pressure was 1006 mb with maximum sustained winds of about 40 mph.
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Tropical Storm Ida Public Advisory Number 3A
2021-08-27 07:50:10| National Hurricane Center (Atlantic)
Issued at 200 AM EDT Fri Aug 27 2021 000 WTNT34 KNHC 270550 TCPAT4 BULLETIN Tropical Storm Ida Intermediate Advisory Number 3A NWS National Hurricane Center Miami FL AL092021 200 AM EDT Fri Aug 27 2021 ...CENTER OF IDA PASSING THROUGH THE CAYMAN ISLANDS... SUMMARY OF 200 AM EDT...0600 UTC...INFORMATION ---------------------------------------------- LOCATION...19.4N 80.9W ABOUT 30 MI...50 KM ENE OF GRAND CAYMAN ABOUT 310 MI...500 KM ESE OF THE WESTERN TIP OF CUBA MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...NW OR 320 DEGREES AT 12 MPH...19 KM/H MINIMUM CENTRAL PRESSURE...1006 MB...29.71 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. 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... * Cayman Islands * 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, in the northern Yucatan Peninsula, and elsewhere along the northern U.S. Gulf coast should monitor the progress of this system. 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 200 AM EDT (0600 UTC), the center of Tropical Storm Ida was located by the weather radar on Grand Cayman near latitude 19.4 North, longitude 80.9 West. Ida is moving toward the northwest near 12 mph (19 km/h) and this general motion should continue over the next few days. On the forecast track, the center of Ida will pass through the Cayman Islands during the next few hours, pass near or over the Isle of Youth and western Cuba later today, and 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. Maximum sustained winds are near 40 mph (65 km/h) with higher gusts. Ida is forecast to become a hurricane over the southeastern Gulf of Mexico in a day or two with additional strengthening expected thereafter. Ida could be near major hurricane strength when it approaches the northern Gulf coast. Tropical-storm-force winds extend outward up to 70 miles (110 km) from the center. An unofficial weather station on Grand Cayman recently reported a wind gust of 46 mph (74 km/h). The estimated minimum central pressure is 1006 mb (29.71 inches). A weather station on Grand Cayman recently reported a pressure of 1007 mb (29.74 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...3-5 ft Lake Maurepas...2-4 ft Sabine Pass to Rockefeller Wildlife Refuge, LA...2-4 ft 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 in the Cayman Islands 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: Tropical Storm 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. Tropical Storm Ida is likely to bring rainfall amounts of 8 to 12 inches with isolated maximum amounts up to 15 inches along the central Gulf Coast Sunday into Monday. This is likely to result in flash, urban, small stream, and riverine flooding to the central Gulf Coast. 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 500 AM EDT. $$ Forecaster Beven
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Tropical Storm Ida Potential Storm Surge Flooding Map
2021-08-27 06:11:28| National Hurricane Center (Atlantic)
Potential Storm Surge Flooding Map last updated Fri, 27 Aug 2021 04:11:28 GMT
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Tropical Storm Ida Probabilistic Storm Surge Graphics
2021-08-27 05:58:56| National Hurricane Center (Atlantic)
Probabilistic Storm Surge Graphics last updated Fri, 27 Aug 2021 03:58:56 GMT
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Tropical Storm Ida Graphics
2021-08-27 05:47:45| National Hurricane Center (Atlantic)
5-Day Uncertainty Track last updated Fri, 27 Aug 2021 03:47:45 GMT Wind Speed Probabilities last updated Fri, 27 Aug 2021 03:47:45 GMT
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