Expected

* WHAT...For the Heat Advisory, heat index values up to 113 expected. For the Extreme Heat Watch, dangerously hot conditions with heat index values up to 124 possible. * WHERE...Coastal Cameron, Coastal Kenedy, Coastal Willacy, Inland Cameron, Inland Kenedy, Inland Willacy, Northern Hidalgo, Southern Hidalgo, and Starr Counties. * WHEN...For the Heat Advisory, until 8 PM CDT this evening. For the Extreme Heat Watch, from Thursday afternoon through Thursday evening.

* WHAT...Dangerous rip currents and breaking waves due to surf of 2 to 3 feet on south-facing beaches expected, with 3 to 6 feet near Jalama. Minor coastal flooding is also possible near times of high tide. * WHERE...Santa Barbara County Southwestern Coast and Santa Barbara County Southeastern Coast. * WHEN...Through late tonight. * IMPACTS...There is an increased risk of ocean drowning. Rip currents can pull swimmers and surfers out to sea. Waves can wash people off beaches and rocks, and capsize small boats

* WHAT...Dangerous rip currents and breaking waves due to elevated surf of 3 to 6 feet on south-facing beaches, as well as minor coastal flooding near times of high tide. * WHERE...Ventura County Beaches, Malibu Coast and Los Angeles County Beaches. * WHEN...Through late tonight. * IMPACTS...There is an increased risk of ocean drowning. Rip currents can pull swimmers and surfers out to sea. Waves can wash people off beaches and rocks, and capsize small boats

At 1137 AM CDT, Doppler radar was tracking strong thunderstorms along a line extending from 10 miles north of Wright to near Vernon. Movement was northeast at 35 mph. HAZARD...Wind gusts up to 40 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Vernon, Chipley, Graceville, De Funiak Springs, Bonifay, Eglin Air Force Base, Bradford, Union, Liberty, Live Oak, Paxton, Ponce De

* WHAT...South winds 15 to 25 mph with occasional gusts of 40 to 50 mph expected Thursday morning, becoming southwest Thursday afternoon. * WHERE...Wayne, Northern Cayuga, and Oswego Counties. * WHEN...From 4 AM to 8 PM EDT Thursday. * IMPACTS...Gusty winds will blow around unsecured objects. A few trees and tree limbs will likely come down, resulting in isolated power outages. * ADDITIONAL DETAILS...Fully leafed out trees may result in more tree damage than with similar wind speeds during the colder months

* WHAT...South winds 20 to 30 mph with occasional gusts of 45 to 55 mph expected late tonight through Thursday morning, becoming southwest during the day Thursday. * WHERE...Erie, Niagara, Orleans, Monroe, Genesee, Wyoming, Livingston, Ontario, Chautauqua, Cattaraugus, and Allegany Counties. * WHEN...From 2 AM to 8 PM EDT Thursday. * IMPACTS...Gusty winds will blow around unsecured objects. A few trees and tree limbs will likely come down, resulting in isolated power outages.

* WHAT...South winds 20 to 30 mph with occasional gusts of 45 to 55 mph expected Thursday morning, becoming southwest Thursday afternoon. * WHERE...Jefferson and Lewis Counties. * WHEN...From 6 AM to 8 PM EDT Thursday. * IMPACTS...Gusty winds will blow around unsecured objects. A few trees and tree limbs will likely come down, resulting in isolated power outages. * ADDITIONAL DETAILS...Fully leafed out trees may result in more tree damage than with similar wind speeds during the colder months of the year.

HLSLCH This product covers Southwest Louisiana and Southeast Texas **TROPICAL STORM ARTHUR DEVELOPS NEAR THE MIDDLE TEXAS COAST. TROPICAL STORM WARNING EXTENDED SOUTHWARD** NEW INFORMATION --------------- * CHANGES TO WATCHES AND WARNINGS: - None * CURRENT WATCHES AND WARNINGS: - A Tropical Storm Warning is in effect for East Cameron, Lower Iberia, Lower Jefferson, Lower St. Mary, Lower Vermilion, and West Cameron * STORM INFORMATION: - About 160 miles west-southwest of Lake Charles LA or about 120

...Forecast flooding changed from Moderate to Major severity and increased in duration for the following rivers in Louisiana... Tchefuncte River Near Folsom affecting St. Tammany Parish. .The river forecast includes 48 hours of forecasted rainfall. These river forecasts could change based on how Potential Tropical Cyclone 1 tracks across Louisiana and Mississippi late tonight and Thursday. Interests along the rivers should monitor the forecast closely and be prepared for significant flooding.

* WHAT...West winds 15 to 25 mph with gusts up to 50 mph expected in the wake of cold front. * WHERE...Eastern Tucker County. * WHEN...From 7 AM to 6 PM EDT Thursday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Please report downed trees, power lines or large branches by calling 412-262-1988, posting to the NWS Pittsburgh Facebook page, or using X @NWSPittsburgh.