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Tropical Storm Lowell Forecast Advisory Number 8
2020-09-22 16:43:33| Tropical Depression LIDIA
Issued at 1500 UTC TUE SEP 22 2020
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Tropical Storm Lowell Wind Speed Probabilities Number 8
2020-09-22 16:43:33| Tropical Depression LIDIA
Issued at 1500 UTC TUE SEP 22 2020
Hurricane Teddy Public Advisory Number 40A
2020-09-22 13:57:00| National Hurricane Center (Atlantic)
Issued at 800 AM AST Tue Sep 22 2020 000 WTNT35 KNHC 221156 TCPAT5 BULLETIN Hurricane Teddy Intermediate Advisory Number 40A NWS National Hurricane Center Miami FL AL202020 800 AM AST Tue Sep 22 2020 ...TEDDY FORECAST TO BRING HEAVY RAIN, STRONG WINDS AND DESTRUCTIVE WAVES TO NOVA SCOTIA... SUMMARY OF 800 AM AST...1200 UTC...INFORMATION ---------------------------------------------- LOCATION...39.3N 63.5W ABOUT 365 MI...590 KM S OF HALIFAX NOVA SCOTIA MAXIMUM SUSTAINED WINDS...105 MPH...165 KM/H PRESENT MOVEMENT...NNW OR 335 DEGREES AT 28 MPH...44 KM/H MINIMUM CENTRAL PRESSURE...950 MB...28.05 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * South coast of Nova Scotia from Digby to Meat Cove A Tropical Storm Watch is in effect for... * Meat Cove to Tidnish Nova Scotia * North of Digby to Fort Lawrence Nova Scotia * Magdalen Islands Quebec * Port aux Basques to Francois Newfoundland * Prince Edward Island A Tropical Storm Warning means that tropical storm conditions are expected within the warning area. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area. Interests elsewhere in Atlantic Canada should closely monitor the progress of Teddy. Additional watches and/or warnings could be required later today. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 800 AM AST (1200 UTC), the center of Hurricane Teddy was located near latitude 39.3 North, longitude 63.5 West. Teddy is moving toward the north-northwest near 28 mph (44 km/h), and a turn toward the north-northeast is expected by early Wednesday. On the forecast track, the center will move over eastern Nova Scotia on Wednesday, and then near or over Newfoundland by Wednesday night. Maximum sustained winds are near 105 mph (165 km/h) with higher gusts. Although some weakening is likely later today and Wednesday, Teddy should be a strong post-tropical cyclone when it moves near and over Nova Scotia. Teddy is a large hurricane. Hurricane-force winds extend outward up to 105 miles (165 km) from the center and tropical-storm-force winds extend outward up to 400 miles (645 km). The estimated minimum central pressure is 950 mb (28.05 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Teddy can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT5 and WMO header WTNT45 KNHC and on the web at https://www.hurricanes.gov/text/MIATCDAT5.shtml. WIND: Tropical storm conditions are expected to begin in the warning area by this afternoon. Tropical storm conditions could begin in the watch areas late today or early Wednesday. SURF: Large swells generated by Teddy are affecting Bermuda, the Lesser Antilles, the Greater Antilles, the Bahamas, the east coast of the United States, and Atlantic Canada. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. RAINFALL: Through Thursday, Teddy is expected to produce rainfall accumulations of 2 to 4 inches (50 to 100 mm) with isolated totals of 6 inches (150 mm) across sections of Atlantic Canada. STORM SURGE: A dangerous storm surge is expected to produce significant coastal flooding near and to the east of where the center makes landfall in Nova Scotia. Near the coast, the surge will be accompanied by very large and destructive waves. NEXT ADVISORY ------------- Next complete advisory at 1100 AM AST. $$ Forecaster Blake
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Tropical Storm Beta Public Advisory Number 19A
2020-09-22 13:45:00| National Hurricane Center (Atlantic)
Issued at 700 AM CDT Tue Sep 22 2020 000 WTNT32 KNHC 221144 TCPAT2 BULLETIN Tropical Storm Beta Intermediate Advisory Number 19A NWS National Hurricane Center Miami FL AL222020 700 AM CDT Tue Sep 22 2020 ...BETA EXPECTED TO STALL INLAND OVER TEXAS TODAY... ...HEAVY RAINS CONTINUE OVER PORTIONS OF THE MIDDLE AND UPPER TEXAS COAST... SUMMARY OF 700 AM CDT...1200 UTC...INFORMATION ---------------------------------------------- LOCATION...28.8N 96.8W ABOUT 10 MI...15 KM ESE OF VICTORIA TEXAS ABOUT 35 MI...55 KM W OF PALACIOS TEXAS MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H PRESENT MOVEMENT...NW OR 315 DEGREES AT 3 MPH...6 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 Storm Surge Warning is in effect for... * Sargent Texas to Sabine Pass including Galveston Bay A Tropical Storm Warning is in effect for... * Port Aransas Texas to Sabine Pass A Storm Surge Warning means there is a danger of life-threatening inundation from rising water moving inland from the coastline in the indicated locations. For a depiction of areas at risk, please see the National Weather Service Storm Surge Watch/Warning Graphic, available at hurricanes.gov. This is a life-threatening situation. Persons located within these areas should take all necessary actions to protect life and property from rising water and the potential for other dangerous conditions. Promptly follow evacuation and other instructions from local officials. A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area. For storm information specific to your area, including possible inland watches and warnings, please monitor products issued by your local National Weather Service forecast office. DISCUSSION AND OUTLOOK ---------------------- At 700 AM CDT (1200 UTC), the center of Tropical Storm Beta was located by surface observations and NOAA Doppler radars near latitude 28.8 North, longitude 96.8 West. Beta is moving toward the northwest near 3 mph (6 km/h). Beta is expected to stall inland over Texas today but will then begin to move slowly toward the east-northeast tonight. An east-northeast to northeast motion with increasing forward speed is expected Wednesday through Friday. On the forecast track, the center of Beta will move inland over southeastern Texas through Wednesday and then over Louisiana and Mississippi Wednesday night through Friday. Maximum sustained winds are near 40 mph (65 km/h) with higher gusts. Beta is likely to begin weakening later today. Tropical-storm-force winds extend outward up to 105 miles (165 km) from the center. A sustained wind of 39 mph (63 km/h) and a gust to 47 mph (76 km/h) was recently reported at Victoria, Texas. The estimated minimum central pressure is 999 mb (29.50 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Beta can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT2 and WMO header WTNT42 KNHC. STORM SURGE: 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... Sargent, TX to Sabine Pass including Galveston Bay...2-4 ft Sabine Pass to Ocean Springs, MS including Sabine Lake, Calcasieu Lake, Vermilion Bay, Lake Borgne, Lake Pontchartrain, and Lake Maurepas...1-3 ft Baffin Bay, TX to Sargent, TX including Copano Bay, Aransas Bay, San Antonio Bay, Matagorda Bay, Corpus Christi Bay and Baffin Bay... 1-3 ft Mouth of the Rio Grande to Baffin Bay, TX...1-2 ft The deepest water will occur along the immediate coast in areas of onshore winds, 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 to continue within portions of the tropical storm warning area today. RAINFALL: For the middle and upper Texas coast, additional rainfall of 6 to 12 inches with isolated storm totals up to 20 inches is expected. Significant flash and urban flooding is occurring and will continue today. Minor river flooding is likely. Rainfall totals of 3 to 5 inches are expected northward into the ArkLaTex region and east into the Lower Mississippi Valley through the end of the week. Flash and urban flooding is possible, as well as isolated minor river flooding. TORNADOES: A tornado or two could occur today near the upper Texas and southwestern Louisiana coasts. SURF: Swells generated by a combination of Beta and a cold front over the northern Gulf of Mexico will continue along the coasts of Louisiana and Texas during the next couple of days. 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 Stewart
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Tropical Storm Paulette Forecast Discussion Number 41
2020-09-22 11:00:34| National Hurricane Center (Atlantic)
Issued at 900 AM GMT Tue Sep 22 2020 000 WTNT41 KNHC 220900 TCDAT1 Tropical Storm Paulette Discussion Number 41 NWS National Hurricane Center Miami FL AL172020 900 AM GMT Tue Sep 22 2020 The tops of Paulette's convective clouds have been warming since the previous advisory, and first-light visible images show that a swirl of low- to mid-level clouds is about all that is left. The estimated maximum winds remain 50 kt based on last evening's ASCAT pass, but that value could be generous given the degraded convective structure. New scatterometer passes this morning should give us a better idea of how the winds have changed. Moderate to strong vertical wind shear and cool sea surface temperatures are expected to induce weakening over the next couple of days, and Paulette is expected to become post-tropical by 48 hours. If convection does not redevelop later today, the transition to a post-tropical cyclone would likely occur before 48 hours. The remnant low is expected to dissipate by day 5. Paulette is moving toward the east-northeast, or 065/15 kt. This motion is expected to continue for the next 36 hours. After that time, there is significant model divergence, with several models (such as the GFS) taking Paulette to the Iberian Peninsula while others (such as the ECMWF) stop it on a dime and turn it westward. The latter solution appears more realistic since a shallow convection-less low would be steered toward the west by ridging to the north. The NHC forecast is a blend of the previous interpolated official forecast and the HCCA consensus aid. FORECAST POSITIONS AND MAX WINDS INIT 22/0900Z 34.7N 23.7W 50 KT 60 MPH 12H 22/1800Z 35.1N 21.5W 45 KT 50 MPH 24H 23/0600Z 35.4N 19.0W 45 KT 50 MPH 36H 23/1800Z 35.8N 17.0W 40 KT 45 MPH 48H 24/0600Z 35.6N 16.3W 35 KT 40 MPH...POST-TROPICAL 60H 24/1800Z 34.9N 16.7W 30 KT 35 MPH...POST-TROP/REMNT LOW 72H 25/0600Z 34.3N 17.2W 25 KT 30 MPH...POST-TROP/REMNT LOW 96H 26/0600Z 33.3N 21.8W 25 KT 30 MPH...POST-TROP/REMNT LOW 120H 27/0600Z...DISSIPATED $$ Forecaster Berg
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