Moderate

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Cloud, Republic, Washington, Brown, Marshall, and Nemaha Counties. * WHEN...Until 10 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous. If driving, slow down, use your low beam headlights, and leave plenty of distance ahead of you.

Localized dense fog has developed this morning from Miles City to Baker, with additional development along the Yellowstone River valley in Rosebud county. While not widespread, areas where fog has developed are reporting visibilities under half a mile at times. Drivers should be prepared for variable visibility while traveling, and slow down using extra caution when fog is encountered. This includes portions of I-94 and US-12. Fog is expected to dissipate by around 10 am this morning.

At 629 AM PDT, Doppler radar was tracking a cluster of strong thunderstorms along a line extending from near Sumpter to near Pondosa. Movement was northwest at 25 mph. HAZARD...Wind gusts up to 40 mph and half inch hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Areas of blowing dust possible. Minor damage to outdoor objects is possible. Locations impacted include... North Powder, Haines, Anthony Lakes Ski Area, Mount Ruth, Thief

At 913 AM EDT, Doppler radar was tracking strong thunderstorms along a line extending from Bremen to near Argos to near Winamac. Movement was east at 45 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... Warsaw, Plymouth, Nappanee, Rochester, Winona Lake, Bremen, Winamac, Bourbon, Argos, Milford, Culver, Akron, North Webster, Pierceton,

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...In Colorado, Yuma County. In Kansas, Cheyenne KS, Decatur, Graham, Norton, and Rawlins Counties. In Nebraska, Dundy, Hitchcock, and Red Willow Counties. * WHEN...Until 9 AM MDT /10 AM CDT/ this morning. * IMPACTS...Low visibility could make driving conditions hazardous. If driving, slow down, use low beam headlights and leave plenty of distance ahead of you.

* WHAT...Visibility less than one quarter mile in dense fog. * WHERE...Portions of northwestern, south central, and southwestern South Dakota. * WHEN...Until 9 AM MDT /10 AM CDT/ this morning. * IMPACTS...Low visibility could make driving conditions hazardous. If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Portions of central, north central, northwest, and west central Minnesota and northeast and southeast North Dakota. * WHEN...Until 10 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous. If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

At 539 AM PDT, Doppler radar was tracking a strong thunderstorm over Salisbury, or 11 miles south of Baker City, moving north at 30 mph. HAZARD...Wind gusts up to 40 mph and up to half inch hail. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Areas of blowing dust possible. Minor damage to outdoor objects is possible. This strong thunderstorm will be near... Salisbury around 540 AM PDT. Baker City around 550 AM PDT. Haines around 610 AM PDT.

At 449 AM PDT, Doppler radar was tracking a cluster of strong thunderstorms along a line extending from near Cow Valley to near Ironside to near Sheep Rock. Movement was north at 20 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. Areas of blowing dust reducing visibility. Minor damage to outdoor objects is possible. Strong thunderstorms will be near...

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Jones, Lyman, and Stanley Counties. * WHEN...Until 9 AM CDT /8 AM MDT/ this morning. * IMPACTS...Low visibility could make driving conditions hazardous. If driving, slow down, use your headlights, and leave plenty of distance ahead of you.