Moderate

* WHAT...Dangerous swimming conditions are expected due to high wave action and strong rip currents. * WHERE...Alger County. * WHEN...From 8 AM EDT this morning through this evening. * IMPACTS...High wave action and dangerous currents will lead to life threatening swimming conditions. Waves in rapid succession can tire swimmers quickly. * ADDITIONAL DETAILS...Current related fatalities and rescues in the past have occurred due to similar wave conditions at locations listed below:

At 1244 AM CDT, Doppler radar indicated a strong thunderstorm over Terlton, moving east at 40 mph. HAZARD...Wind gusts up to 50 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down small tree limbs and blow around unsecured objects. Locations in or near the path include... Mannford... Oilton... Jennings... Westport... Osage... Hallett... Terlton... Keystone State Park...

At 1221 AM CDT, Doppler radar was tracking strong thunderstorms along a line extending from 3 miles northwest of Quay to 3 miles northeast of Ripley. Movement was east at 15 mph. HAZARD...Wind gusts of 40 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Cushing, Yale, and Quay. If outdoors, consider seeking shelter inside a building.

At 1225 AM CDT, Doppler radar was tracking a strong thunderstorm over Miltonvale, moving east at 35 mph. HAZARD...Wind gusts up to 40 mph and nickel size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down twigs or small limbs and blow around objects. Hail damage to outdoor objects and vegetation is possible. Locations impacted include... Clay Center, Miltonvale, Oak Hill, and Idana. If outdoors, consider seeking shelter inside a building.

Clearing skies, light winds, and ample low-level moisture are helping areas of fog (and low clouds) to develop and become dense early this morning. This fog will continue to expand through the night with visibilities below a quarter of a mile, at times. Be sure to slow down and use your low beam headlights when you encounter any fog.

* WHAT...Heat index values up to 109 expected. * WHERE...Portions of central, east central, northern, northwest, southeast, southern, southwest, and western Oklahoma and northern Texas. * WHEN...From noon today to 7 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose

At 1228 AM CDT, Doppler radar was tracking a strong thunderstorm near Perry, moving east at 25 mph. HAZARD...Wind gusts of 30 mph and pea size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include... Stillwater, Perry, Morrison, and Lake Mcmurtry. If outdoors, consider seeking shelter inside a building.

At 1204 AM CDT, Doppler radar indicated strong thunderstorms along a line extending from 4 miles south of West Mineral to 3 miles southeast of Oswego to 4 miles east of Edna to 5 miles south of Mound Valley. Movement was southeast at 30 mph. HAZARD...Wind gusts up to 50 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down small tree limbs and blow around unsecured objects. Locations in or near the path include... Miami... Baxter Springs...

At 1210 AM CDT, Doppler radar indicated strong thunderstorms along a line extending from 2 miles west of Avant to near Walnut Creek State Park to 4 miles southeast of Oilton. Movement was southeast at 35 mph. HAZARD...Wind gusts up to 50 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down small tree limbs and blow around unsecured objects. Locations in or near the path include... Tulsa... Broken Arrow... Sand Springs... Claremore...

Fog has developed early this Sunday morning, and some patchy dense fog can be expected. Visibilities may be reduced to one-quarter mile or less in some spots. Those driving should remain alert for rapidly changing visibilities. Remember to use low-beam headlights.