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Hurricane Grace Public Advisory Number 21A

2021-08-18 19:39:26| National Hurricane Center (Atlantic)

Issued at 200 PM EDT Wed Aug 18 2021 000 WTNT32 KNHC 181739 TCPAT2 BULLETIN Hurricane Grace Intermediate Advisory Number 21A NWS National Hurricane Center Miami FL AL072021 200 PM EDT Wed Aug 18 2021 ...GRACE HEADED FOR THE YUCATAN PENINSULA OF MEXICO... SUMMARY OF 200 PM EDT...1800 UTC...INFORMATION ---------------------------------------------- LOCATION...19.6N 83.0W ABOUT 295 MI...475 KM E OF TULUM MEXICO MAXIMUM SUSTAINED WINDS...75 MPH...120 KM/H PRESENT MOVEMENT...WNW OR 285 DEGREES AT 15 MPH...24 KM/H MINIMUM CENTRAL PRESSURE...995 MB...29.38 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 Tropical Storm Warning is in effect for... * Cayman Islands * Yucatan Peninsula of Mexico from north of Cancun to Campeche * Yucatan Peninsula of Mexico from south of Punta Herrero to Puerto Costa Maya A Tropical Storm Watch is in effect for... * Southern coast Cuban province of Pinar del Rio, as well as Isla de la Juventud 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. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area. Interests elsewhere in eastern mainland Mexico should monitor the progress of Grace. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 200 PM EDT (1800 UTC), the center of Hurricane Grace was located near latitude 19.6 North, longitude 83.0 West. Grace is moving toward the west-northwest near 15 mph (24 km/h). A general west-northwestward to westward motion is expected for the next several days. On the forecast track, Grace is expected to make landfall in the eastern Yucatan Peninsula Thursday morning, move over the Yucatan Peninsula on Thursday, and move over the southwest Gulf of Mexico Thursday night or early Friday. Maximum sustained winds are near 75 mph (120 km/h) with higher gusts. Some strengthening is forecast before the center of Grace reaches the Yucatan Peninsula. Weakening will occur while the center moves over the Yucatan Peninsula on Thursday, with restrengthening expected when Grace moves over the southwest Gulf of Mexico on Friday. Hurricane-force winds extend outward up to 25 miles (35 km) from the center and tropical-storm-force winds extend outward up to 140 miles (220 km). The minimum central pressure estimated from Air Force Hurricane Hunter aircraft observations is 995 mb (29.38 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 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 or early Thursday, with tropical storm conditions beginning as early as this evening. RAINFALL: Grace is expected to produce the following rainfall amounts: Over the Cayman Islands, portions of the Yucatan Peninsula and Veracruz State of Mexico....4 to 8 inches with isolated maximum totals of 12 inches are expected through Friday night. This heavy rainfall could lead to flash and urban flooding, with mudslides possible in Veracruz. STORM SURGE: 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 and the Cayman Islands to the southern coast of Cuba and the Yucatan Peninsula of Mexico through Thursday. 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 PM EDT. $$ Forecaster Pasch

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Post-Tropical Cyclone Fred Public Advisory Number 36

2021-08-18 17:18:44| National Hurricane Center (Atlantic)

The NHC has issued its final advisory on this system. Public Advisories from the Weather Prediction Center will provide updates as long as the system remains a flood threat. Issued at 1100 AM EDT Wed Aug 18 2021

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Hurricane Grace Public Advisory Number 21

2021-08-18 16:50:20| National Hurricane Center (Atlantic)

Issued at 1100 AM EDT Wed Aug 18 2021 000 WTNT32 KNHC 181450 TCPAT2 BULLETIN Hurricane Grace Advisory Number 21 NWS National Hurricane Center Miami FL AL072021 1100 AM EDT Wed Aug 18 2021 ...AIR FORCE RESERVE AND NOAA HURRICANE HUNTERS FIND THAT GRACE BECOMES A HURRICANE JUST WEST OF GRAND CAYMAN... SUMMARY OF 1100 AM EDT...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...19.4N 82.2W ABOUT 65 MI...105 KM W OF GRAND CAYMAN ABOUT 350 MI...560 KM E OF TULUM MEXICO MAXIMUM SUSTAINED WINDS...75 MPH...120 KM/H PRESENT MOVEMENT...WNW OR 285 DEGREES AT 15 MPH...24 KM/H MINIMUM CENTRAL PRESSURE...992 MB...29.30 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The Hurricane Watch is discontinued for the Cayman Islands. 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 Tropical Storm Warning is in effect for... * Cayman Islands * Yucatan Peninsula of Mexico from north of Cancun to Campeche * Yucatan Peninsula of Mexico from south of Punta Herrero to Puerto Costa Maya A Tropical Storm Watch is in effect for... * Southern coast Cuban province of Pinar del Rio, as well as Isla de la Juventud 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. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area. Interests elsewhere in eastern mainland Mexico should monitor the progress of Grace. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 1100 AM EDT (1500 UTC), the center of Hurricane Grace was located by Air Force Reserve and NOAA Hurricane Hunter aircraft near latitude 19.4 North, longitude 82.2 West. Grace is moving toward the west-northwest near 15 mph (24 km/h). A general west-northwestward to westward motion is expected for the next several days. On the forecast track, the center of Grace will continue to move away from Grand Cayman today. Grace is expected to make landfall in the Yucatan Peninsula Thursday morning, and move over the southwest Gulf of Mexico early Friday. Aircraft data indicate that maximum sustained winds are near 75 mph (120 km/h) with higher gusts. Some additional strengthening is forecast before the center of Grace reaches the eastern Yucatan Peninsula. Weakening will occur while the center moves over the Yucatan Peninsula on Thursday, with restrengthening expected when Grace moves over the southwest Gulf of Mexico on Friday. Hurricane-force winds extend outward up to 25 miles (35 km) from the center and tropical-storm-force winds extend outward up to 115 miles (185 km). The estimated minimum central pressure is 992 mb (29.30 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 over portions of the Cayman Islands for the next few hours. 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 or early Thursday, with tropical storm conditions beginning as early as this evening. RAINFALL: Grace is expected to produce the following rainfall amounts: Over the Cayman Islands, portions of the Yucatan Peninsula and Veracruz State of Mexico....4 to 8 inches with isolated maximum totals of 12 inches are expected through Friday night. This heavy rainfall could lead to flash and urban flooding, with mudslides possible in Veracruz. STORM SURGE: 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 and the Cayman Islands to 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 intermediate advisory at 200 PM EDT. Next complete advisory at 500 PM EDT. $$ Forecaster Pasch

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Tropical Storm Henri Public Advisory Number 11

2021-08-18 16:35:19| National Hurricane Center (Atlantic)

Issued at 1100 AM AST Wed Aug 18 2021 000 WTNT33 KNHC 181435 TCPAT3 BULLETIN Tropical Storm Henri Advisory Number 11 NWS National Hurricane Center Miami FL AL082021 1100 AM AST Wed Aug 18 2021 ...HENRI HOLDING STEADY IN STRENGTH OVER THE WESTERN ATLANTIC... SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...30.0N 66.6W ABOUT 190 MI...310 KM SW OF BERMUDA ABOUT 795 MI...1280 KM SSE OF NANTUCKET MASSACHUSETTS MAXIMUM SUSTAINED WINDS...65 MPH...100 KM/H PRESENT MOVEMENT...W OR 260 DEGREES AT 8 MPH...13 KM/H MINIMUM CENTRAL PRESSURE...998 MB...29.47 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 1100 AM AST (1500 UTC), the center of Tropical Storm Henri was located near latitude 30.0 North, longitude 66.6 West. Henri is moving toward the west near 8 mph (13 km/h) and this motion is expected to continue for another day or so. A turn to the north is expected on Friday with that motion continuing into the weekend. Maximum sustained winds are near 65 mph (100 km/h) with higher gusts. Little change in strength is forecast during the next couple of days, but Henri is expected to become a hurricane by the weekend. Tropical-storm-force winds extend outward up to 80 miles (130 km) from the center. The estimated minimum central pressure is 998 mb (29.47 inches). HAZARDS AFFECTING LAND ---------------------- 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 later this week and this 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 AST. $$ Forecaster Cangialosi

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Hurricane Linda Public Advisory Number 34

2021-08-18 16:32:19| Tropical Depression LIDIA

...LINDA MAINTAINING ITS INTENSITY FOR NOW... Location: 18.2°N 131.8°W Max sustained: 105 mph Moving: W at 13 mph Min pressure: 975 mb Issued at 500 AM HST Wed Aug 18 2021

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