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Tropical Storm Henri Public Advisory Number 9A
2021-08-18 07:47:45| National Hurricane Center (Atlantic)
Issued at 200 AM AST Wed Aug 18 2021 000 WTNT33 KNHC 180547 TCPAT3 BULLETIN Tropical Storm Henri Intermediate Advisory Number 9A NWS National Hurricane Center Miami FL AL082021 200 AM AST Wed Aug 18 2021 ...HENRI MOVING A LITTLE SLOWER TOWARD THE WEST-SOUTHWEST... SUMMARY OF 200 AM AST...0600 UTC...INFORMATION ---------------------------------------------- LOCATION...30.0N 65.1W ABOUT 160 MI...255 KM S OF BERMUDA MAXIMUM SUSTAINED WINDS...65 MPH...100 KM/H PRESENT MOVEMENT...WSW OR 255 DEGREES AT 6 MPH...10 KM/H MINIMUM CENTRAL PRESSURE...998 MB...29.47 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Watch is in effect for... * Bermuda A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, in this case within the next 24 hours. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 200 AM AST (0600 UTC), the center of Tropical Storm Henri was located near latitude 30.0 North, longitude 65.1 West. Henri is moving toward the west-southwest near 6 mph (10 km/h). A gradual turn to the west with a faster forward motion is expected later today, followed by an additional turn to the west-northwest and northwest by late Thursday. Maximum sustained winds remain near 65 mph (100 km/h) with higher gusts. Some additional strengthening is possible today, followed by little change in strength through Thursday. Tropical-storm-force winds extend outward up to 70 miles (110 km) from the center. The estimated minimum central pressure is 998 mb (29.47 inches). HAZARDS AFFECTING LAND ---------------------- WIND: Tropical storm conditions are possible tonight across Bermuda and the nearby waters, particularly to the south of the island. SURF: Swells generated by Henri should continue to affect Bermuda during the next day or so. Swells could increase along the southeast and mid-Atlantic U.S. coasts by the end of the week. 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 AM AST. $$ Forecaster Roberts
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Tropical Storm Grace Graphics
2021-08-18 07:45:34| National Hurricane Center (Atlantic)
5-Day Uncertainty Track last updated Wed, 18 Aug 2021 05:45:34 GMT Wind Speed Probabilities last updated Wed, 18 Aug 2021 03:28:56 GMT
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Summary for Tropical Storm Grace (AT2/AL072021)
2021-08-18 07:44:16| National Hurricane Center (Atlantic)
...GRACE FORECAST TO BECOME A HURRICANE LATER TODAY... ...HEAVY RAINFALL AND FLASH FLOOD THREAT CONTINUES IN JAMAICA... As of 2:00 AM EDT Wed Aug 18 the center of Grace was located near 18.7, -80.1 with movement W at 14 mph. The minimum central pressure was 1000 mb with maximum sustained winds of about 60 mph.
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Tropical Storm Grace Public Advisory Number 19A
2021-08-18 07:44:16| National Hurricane Center (Atlantic)
Issued at 200 AM EDT Wed Aug 18 2021 000 WTNT32 KNHC 180544 TCPAT2 BULLETIN Tropical Storm Grace Intermediate Advisory Number 19A NWS National Hurricane Center Miami FL AL072021 200 AM EDT Wed Aug 18 2021 ...GRACE FORECAST TO BECOME A HURRICANE LATER TODAY... ...HEAVY RAINFALL AND FLASH FLOOD THREAT CONTINUES IN JAMAICA... SUMMARY OF 200 AM EDT...0600 UTC...INFORMATION ---------------------------------------------- LOCATION...18.7N 80.1W ABOUT 85 MI...140 KM ESE OF GRAND CAYMAN ABOUT 70 MI...110 KM S OF CAYMAN BRAC MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H PRESENT MOVEMENT...W OR 280 DEGREES AT 14 MPH...22 KM/H MINIMUM CENTRAL PRESSURE...1000 MB...29.53 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Warning is in effect for... * Yucatan Peninsula of Mexico from Cancun to Punta Herrero, including Cozumel A Hurricane Watch is in effect for... * Cayman Islands A Tropical Storm Warning is in effect for... * Jamaica * Southern coast of the Cuban provinces of Granma, Las Tunas, and Camaguey * Cayman Islands * Yucatan Peninsula of Mexico from north of Cancun to Dzilam * Yucatan Peninsula of Mexico from south of Punta Herrero to Puerto Costa Maya A Tropical Storm Watch is in effect for... * Southern coast of the Cuban provinces of Ciego de Avila, Sancti Spiritus, Cienfuegos, Matanzas, and Pinar del Rio, as well as Isla de la Juventud * North and west coasts of the Yucatan Peninsula from west of Dzilam to Campeche 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 Hurricane Watch means that hurricane conditions are possible within the watch area. 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. Interests elsewhere in the Yucatan Peninsula of Mexico should monitor the progress of Grace. Additional watches or warnings may be required later this morning. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 200 AM EDT (0600 UTC), the center of Tropical Storm Grace was located by an Air Force Reserve reconnaissance aircraft and satellites near latitude 18.7 North, longitude 80.1 West. Grace is moving toward the west near 14 mph (22 km/h). A general westward to west-northwestward motion is expected for the next several days. On the forecast track, the center of Grace will continue to move away from the western coast of Jamaica and and move near or over the Cayman Islands later this morning. Grace will approach the Yucatan peninsula of Mexico tonight or early Thursday. Data from the reconnaissance aircraft indicate that maximum sustained winds remain near 60 mph (95 km/h) with higher gusts. Grace is forecast to strengthen into a hurricane by tonight, with some additional strengthening possible prior to the center reaching the eastern Yucatan Peninsula. Tropical-storm-force winds extend outward up to 115 miles (185 km) mainly north through east of the center. A reporting station near Rum Point Beach on the north shore of Grand Cayman recently measured a sustained wind of 34 mph (55 km/h) and a gust to 51 mph (82 km/h). The latest minimum central pressure estimated from reconnaissance aircraft data is 1000 mb (29.53 inches). 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. WIND: Tropical storm conditions are expected to continue over portions of western Jamaica for a few more hours. Tropical storm conditions are expected along a portion of the southern coast of Cuba within the warning area and over the Cayman Islands through this morning. Hurricane conditions are possible in the Cayman Islands later this morning. Tropical storm conditions are possible along the southern coast of Cuba within the watch area through today. Hurricane conditions are expected within the warning area in the Yucatan Peninsula of Mexico late tonight, with tropical storm conditions beginning as early as this evening. RAINFALL: The system is expected to produce the following rainfall amounts: Over Jamaica, the Cayman Islands, and portions of the Yucatan Peninsula....3 to 6 inches of rain with isolated maximum totals of 10 inches are expected through Thursday. This heavy rainfall may lead to flash and urban flooding, and across Jamaica, mudslides will also be possible. STORM SURGE: A storm surge could raise water levels as high as 1 to 3 ft above normal tide levels in portions of the Cayman Islands. A dangerous storm surge will raise water levels by as much as 3 to 5 ft above normal tide levels along the immediate coast near and to the north of where the center makes landfall in the northeastern Yucatan Peninsula late tonight or early Thursday. Near the coast, the surge will be accompanied by large and destructive waves. SURF: Swells generated by Grace will spread westward from Jamaica to the Cayman Islands, the southern coast of Cuba, and the Yucatan Peninsula of Mexico. 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 Stewart
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Eastern North Pacific Tropical Weather Outlook
2021-08-18 07:34:44| National Hurricane Center (East Pacific)
000 ABPZ20 KNHC 180534 TWOEP Tropical Weather Outlook NWS National Hurricane Center Miami FL 1100 PM PDT Tue Aug 17 2021 For the eastern North Pacific...east of 140 degrees west longitude: The National Hurricane Center is issuing advisories on Hurricane Linda, located more than 1200 miles west-southwest of the southern tip of the Baja California peninsula. Tropical cyclone formation is not expected during the next 5 days. $$ Forecaster Roberts
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