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Potential Tropical Cyclone Seven Graphics

2021-08-13 19:51:58| National Hurricane Center (Atlantic)

5-Day Uncertainty Track last updated Fri, 13 Aug 2021 17:51:58 GMT Wind Speed Probabilities last updated Fri, 13 Aug 2021 15:29:05 GMT

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Summary for Potential Tropical Cyclone Seven (AT2/AL072021)

2021-08-13 19:51:50| National Hurricane Center (Atlantic)

...DISTURBANCE PRODUCING WINDS JUST BELOW TROPICAL STORM STRENGTH... As of 2:00 PM AST Fri Aug 13 the center of Seven was located near 15.3, -50.3 with movement W at 21 mph. The minimum central pressure was 1010 mb with maximum sustained winds of about 35 mph.

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Potential Tropical Cyclone Seven Public Advisory Number 1A

2021-08-13 19:51:50| National Hurricane Center (Atlantic)

Issued at 200 PM AST Fri Aug 13 2021 000 WTNT32 KNHC 131751 TCPAT2 BULLETIN Potential Tropical Cyclone Seven Intermediate Advisory Number 1A NWS National Hurricane Center Miami FL AL072021 200 PM AST Fri Aug 13 2021 ...DISTURBANCE PRODUCING WINDS JUST BELOW TROPICAL STORM STRENGTH... SUMMARY OF 200 PM AST...1800 UTC...INFORMATION ---------------------------------------------- LOCATION...15.3N 50.3W ABOUT 775 MI...1245 KM E OF THE LEEWARD ISLANDS MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H PRESENT MOVEMENT...W OR 280 DEGREES AT 21 MPH...33 KM/H MINIMUM CENTRAL PRESSURE...1010 MB...29.83 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Watch is in effect for... * Antigua and Barbuda, St. Kitts and Nevis, and Montserrat * Saba and Sint Eustatius A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours. Interests elsewhere in the Leeward Islands, the Virgin Islands, and Puerto Rico should monitor the progress of this system. Tropical Storm Watches will likely be required for 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 200 PM AST (1800 UTC), the disturbance was centered near latitude 15.3 North, longitude 50.3 West. The system is moving toward the west near 21 mph (33 km/h), and this general motion with a gradual decrease in forward speed is expected into early next week. On the forecast track, the system is expected to approach the Leeward Islands on Saturday, move over the Leeward Islands Saturday night and Sunday, and then be near the Virgin Islands and Puerto Rico Sunday night and Monday. Recent satellite-derived wind data indicate that the system remains an open wave but maximum sustained winds are near 35 mph (55 km/h) with higher gusts. Gradual strengthening is forecast during the next couple of days, and the disturbance is expected to become a tropical storm by Saturday. * Formation chance through 48 hours...high...80 percent. * Formation chance through 5 days...high...80 percent. The estimated minimum central pressure is 1010 mb (29.83 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Potential Tropical Cyclone Seven can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT2 and WMO header WTNT42 KNHC and on the web at www.hurricanes.gov/graphics_at2.shtml?key_messages. WIND: Tropical storm conditions are possible within the watch area by Saturday night or early Sunday. RAINFALL: The system is expected to produce rainfall of 3 to 6 inches across the northern Leeward Islands Saturday into Sunday. This rainfall may produce scattered areas of flash flooding. NEXT ADVISORY ------------- Next complete advisory at 500 PM AST. $$ Forecaster Berg

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Summary for Tropical Depression Fred (AT1/AL062021)

2021-08-13 19:31:50| National Hurricane Center (Atlantic)

...FRED PRODUCING HEAVY RAINFALL WHILE MOVING WEST-NORTHWESTWARD ALONG THE NORTHERN COAST OF CUBA... As of 2:00 PM EDT Fri Aug 13 the center of Fred was located near 22.3, -78.9 with movement WNW at 12 mph. The minimum central pressure was 1013 mb with maximum sustained winds of about 35 mph.

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Tropical Depression Fred Public Advisory Number 16A

2021-08-13 19:31:50| National Hurricane Center (Atlantic)

Issued at 200 PM EDT Fri Aug 13 2021 000 WTNT31 KNHC 131731 TCPAT1 BULLETIN Tropical Depression Fred Intermediate Advisory Number 16A NWS National Hurricane Center Miami FL AL062021 200 PM EDT Fri Aug 13 2021 ...FRED PRODUCING HEAVY RAINFALL WHILE MOVING WEST-NORTHWESTWARD ALONG THE NORTHERN COAST OF CUBA... SUMMARY OF 200 PM EDT...1800 UTC...INFORMATION ---------------------------------------------- LOCATION...22.3N 78.9W ABOUT 40 MI...65 KM ESE OF CAIBARIEN CUBA ABOUT 245 MI...390 KM SE OF KEY WEST FLORIDA MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H PRESENT MOVEMENT...WNW OR 285 DEGREES AT 12 MPH...19 KM/H MINIMUM CENTRAL PRESSURE...1013 MB...29.92 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * The Florida Keys west of Ocean Reef to the Dry Tortugas * Florida Bay A Tropical Storm Watch is in effect for... * The Cuban provinces of Villa Clara, Sancti Spiritus, Ciego de Avila, and Camaguey * The southwest coast of Florida from Englewood south and east to Ocean Reef 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 in the Bahamas, elsewhere in Cuba, and the Florida Peninsula should monitor the progress of Fred. Additional watches and warnings could be required for portions of these areas later today. Interests in the Florida Panhandle should also monitor the progress of Fred. 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 PM EDT (1800 UTC), the center of Tropical Depression Fred was located near latitude 22.3 North, longitude 78.9 West. The depression is moving toward the west-northwest near 12 mph (19 km/h), and this general motion is expected to continue today. A turn toward the northwest is expected tonight or Saturday. On the forecast track, Fred is expected to continue moving along or near the north coast of central Cuba through tonight, be near the Florida Keys on Saturday, and move near or west of the west coast of the Florida peninsula Saturday night and Sunday. Maximum sustained winds are near 35 mph (55 km/h) with higher gusts. Little change in strength is expected today. After that, slow strengthening is expected, and Fred could become a tropical storm again tonight or Saturday. The estimated minimum central pressure is 1013 mb (29.92 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Fred can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT1, WMO header WTNT41 KNHC and on the web at www.hurricanes.gov/graphics_at1.shtml?key_messages. RAINFALL: Tropical Depression Fred is expected to produce the following rainfall amounts: Portions of Cuba...2 to 5 inches with isolated maximum totals of 8 inches. This rainfall may lead to scattered flash flooding. Across the Bahamas...1 to 3 inches, with isolated maximum totals of 5 inches. Today through Monday, 3 to 7 inches of rain is anticipated across the Keys, southern and central Florida north towards the Big Bend, with isolated maximum totals of 10 inches. Heavy rainfall could lead to areal, urban, and small stream flooding, and potentially worsen ongoing minor to isolated moderate river flooding over northern Florida. From Sunday onward, heavy rain and flood impacts could extend into inland portions of the Southeast and into the southern and central Appalachians and Piedmont as Fred interacts with a front in the area. WIND: Tropical storm conditions are possible in the watch area in Cuba through tonight. Tropical storm conditions are expected in the warning area across the Florida Keys on Saturday. Tropical storm conditions are possible in the watch area in Florida beginning Saturday. SURF: Swells generated by Fred are expected to spread across portions of the Bahamas and the northern coast of Cuba through tonight. These swells could reach the Florida Keys and southern Florida by early Saturday and increase along the west coast of Florida Saturday night and Sunday. Please consult products from your local weather office for more details. TORNADOES: There will be a risk of isolated tornadoes beginning Saturday afternoon over parts of central and south Florida. NEXT ADVISORY ------------- Next complete advisory at 500 PM EDT. $$ Forecaster Brennan

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