Expected

* WHAT...Thunderstorm activity through late this afternoon will create varying currents, rapid water level fluctuations, and dangerous swimming conditions with waves 3 to 5 feet expected. Northerly winds will develop tonight and create high wave action and dangerous swimming conditions with waves 6 to 9 feet expected. * WHERE...In Illinois, Lake, Northern Cook and Central Cook Counties. In Indiana, Lake and Porter Counties. * WHEN...Through Wednesday morning.

At 544 PM EDT, Doppler radar was tracking a strong thunderstorm near Berwick, moving southeast at 15 mph. HAZARD...Wind gusts up to 50 mph and half inch hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include... Mahanoy City, Mcadoo, Hometown, Tuscarora, Oneida, Grier City-Park Crest, Delano, Nuremburg, Sheppton, Brandonville, Ringtown, Kelayres, Park Place, and Trenton.

At 345 PM MDT, Doppler radar was tracking a strong thunderstorm 12 miles northeast of Crestone Peak, or 44 miles west of Pueblo. This thunderstorm was nearly stationary. HAZARD...Wind gusts up to 50 mph and half inch hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include... Silver Cliff, Westcliffe, and Rosita. If outdoors, consider seeking shelter inside a building.

Water levels are expected to rise to 1 to 2 feet above the normal high tide line around Baldwin Peninsula and northern coastlines of the Kotzebue Sound, peaking in the early morning and diminishing rapidly Wednesday afternoon as the front moves through.

At 548 PM EDT/448 PM CDT/, Doppler radar was tracking strong thunderstorms along a line extending from 6 miles southwest of Abbeville to 10 miles north of Midland City to near Ozark. Movement was southeast at 15 mph. HAZARD...Wind gusts up to 40 mph and pea size hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include...

At 552 PM EDT, Doppler radar was tracking a strong thunderstorm over Forest Acres, moving south at 10 mph. HAZARD...Wind gusts 35 to 45 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Columbia, West Columbia, Cayce, Forest Acres, Dentsville, Oak Grove, St. Andrews, South Congaree, Pine Ridge, Arcadia Lakes, Hopkins, Riverbanks Zoo, SC State Farmer's Market, Woodfield, Columbia Metro

At 350 PM MDT/450 PM CDT/, Doppler radar was tracking a cluster of strong thunderstorms in northern Cheyenne County, about 8 miles south of Haigler, or 9 miles northwest of St. Francis, moving northeast at 15 mph. HAZARD...Wind gusts up to 55 mph and half inch hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. This storm will remain over mainly rural areas of northern Cheyenne,

* WHAT...Arroyo and small stream flooding caused by excessive rainfall is expected. * WHERE...Northeastern Colfax County in northeastern New Mexico... Western Union County in northeastern New Mexico... * WHEN...Until 600 PM MDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Rises in small streams and normally dry arroyos. Dangerous flows over low-water crossings. Water over roadways. Overflowing poor drainage areas. * ADDITIONAL DETAILS...

At 356 PM MDT, Doppler radar was tracking a strong thunderstorm 26 miles west of Delta, moving northeast at 30 mph. HAZARD...Wind gusts of 50 to 55 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... Hinckley, Abraham, Sugarville, and Sutherland. This includes US Route 6 between mile markers 54 and 84. If outdoors, consider seeking shelter inside a building.

At 555 PM EDT, Doppler radar was tracking a strong thunderstorm near Nanty-Glo, moving southeast at 20 mph. Other storms were nearby this storm. HAZARD...Wind gusts up to 50 mph and half inch hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include... Johnstown, Westmont, Windber, Belmont, Nanty-Glo, Portage, Geistown, Southmont, Vinco, Dale, East Conemaugh, Salix-Beauty Line Park,