Expected

At 540 AM CDT, Doppler radar was tracking a strong thunderstorm near<br /> Salem, or near Marion, moving east at 30 mph. HAZARD...Wind gusts up to 40 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around<br /> unsecured objects. Locations impacted include...<br /> Marion, Salem, Creswell, Farmersville, Fredonia, Dycusburg, and<br /> Fryer.<br /> If outdoors, consider seeking shelter inside a building. Torrential rainfall is also occurring with this storm and may lead to<br />

Areas of locally dense fog are affecting portions of south-central<br /> Minnesota and north-central Iowa early this morning. Visibilities<br /> of 1/2 to 1/4 mile have already been observed. Improvement in<br /> visibilities is expected within a few hours after sunrise. If<br /> traveling early this morning, reduce your speed and use low-beam<br /> headlights when encountering foggy areas.

...CRITICAL FIRE WEATHER CONDITIONS FOR EASTERN COLORADO... * AFFECTED AREA...Fire Weather Zones 252 Yuma, 253 Kit Carson<br /> and 254 Cheyenne CO. * TIMING...From 11 AM this morning to 9 PM MDT this evening. * WINDS...South 20 to 30 mph with gusts up to 45 mph. * RELATIVE HUMIDITY...As low as 15 percent. * IMPACTS...Unpredictable fire behavior. Any fires that develop<br /> may rapidly grow and spread out of control.<br /> Comply with burn bans and regulations. Avoid driving on dry grass<br />

WHAT...Patchy fog with visibilities around or under a mile at<br /> times. WHERE...Portions of north central and northeast Iowa. WHEN...Until 8 AM Tuesday. IMPACTS...Drivers should be alert for reduced visibility at times.<br /> Improvements are expected within a few hours after sunrise. PREPAREDNESS AND PRECAUTIONARY ACTIONS...If driving this morning,<br /> please use low beam headlights.

Patchy dense fog has developed early this morning across portions<br /> of eastern Iowa, mainly north of Highway 30, reducing visibility<br /> to a quarter mile. The patchy dense fog will continue for the next<br /> couple of hours before improving by 8 AM. If traveling early this<br /> morning, be prepared for rapid changes in visibility over short<br /> distances. When encountering dense fog, slow down and use low-beam<br /> headlights.

At 512 AM CDT, Doppler radar was tracking a strong thunderstorm over<br /> Winger, or 42 miles south of Thief River Falls, moving northeast at<br /> 30 mph. HAZARD...Penny size hail. SOURCE...Radar indicated. IMPACT...Minor hail damage to vegetation is possible. Locations impacted include...<br /> Fosston, McIntosh, Erskine, Gonvick, Winger, Bejou, and Gully.<br /> If outdoors, consider seeking shelter inside a building.

* WHAT...Southwest winds 25 to 35 mph with gusts up to 45 mph<br /> expected. * WHERE...Arco/Mud Lake Desert and Upper Snake River Plain. * WHEN...From 10 AM this morning to 9 PM MDT this evening. * IMPACTS...Gusty winds could make driving difficult, especially for<br /> high profile vehicles. Unsecured objects may be blown around.<br /> Strong winds and rough waves on area lakes will create hazardous<br /> conditions for small craft.<br /> Winds this strong can make driving difficult, especially for high<br /> profile vehicles. Use extra caution.

* WHAT...Southwest winds 20 to 25 mph with gusts up to 35 mph<br /> expected for American Falls Reservoir. * WHERE...Lower Snake River Plain. * WHEN...From 10 AM this morning to 9 PM MDT this evening. * IMPACTS...Strong winds and rough waves on area lakes will create<br /> hazardous conditions for small craft.<br /> Boaters on area lakes should use extra caution since strong winds<br /> and rough waves can overturn small craft.

* WHAT...Heat index values up to 108 expected. * WHERE...Portions of East Arkansas, North Mississippi, Southeast<br /> Missouri, and West Tennessee. * WHEN...From 11 AM this morning to 8 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat<br /> illnesses.<br /> Drink plenty of fluids, stay in an air-conditioned room, stay out of<br /> the sun, and check up on relatives and neighbors.

* WHAT...Heat index values up to 100 to 105 expected. * WHERE...Portions of southeast Kansas and central, east central,<br /> south central, southwest, and west central Missouri. * WHEN...From noon today to 7 AM CDT Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat<br /> illnesses.<br /> Drink plenty of fluids, stay in an air-conditioned room, stay out of<br /> the sun, and check up on relatives and neighbors.