Moderate

Patchy fog will affect portions of North Central MT this morning. Visibility will be reduced to less than one half mile at times. Some locations that could experience fog are Cascade, Belt, Choteau and the Interstate 15 corridor from the city of Ulm to Sieben flats. Reminder, reduce driving speeds in areas of poor visibility.

* WHAT...Life threatening waves of 3 to 5 feet and dangerous currents are expected. * WHERE...Milwaukee and Racine Counties. * WHEN...Until noon CDT today. * IMPACTS...Dangerous swimming conditions are expected due to high waves and onshore winds. Stay out of the water and away from dangerous areas like piers and breakwalls. Strong structural and longshore currents are expected. Rip currents are possible.

Temperatures this afternoon into early evening will reach the upper 80s to low 90s across the area. This combined with high humidity will result in heat indices in the mid 90s up to 100 degrees in some locations. Try to limit time outdoors today during peak heating when heat illness is most likely to occur. If going outdoors, make sure to drink plenty of fluids and take breaks out of the sun.

* WHAT...Southwest winds 20 to 30 mph with gusts up to 40 mph expected. * WHERE...Municipality of Skagway. * WHEN...From 7 AM this morning to 7 PM AKDT this evening. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down. * ADDITIONAL DETAILS...Highest wind speeds expected between late morning to early afternoon. Winds this strong can make travel difficult. Use extra caution. Secure outdoor objects.

* WHAT...Heat index values up to 105. * WHERE...Portions of southeast Kansas and central, east central, south central, southwest, and west central Missouri. * WHEN...Until 8 PM CDT Friday. * 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 fitting clothing. Try to limit strenuous activities to early morning

At 209 AM MDT, Doppler radar was tracking strong thunderstorms along a line extending from Lehi to 6 miles southwest of Rocky Ridge. Movement was northeast at 55 mph. HAZARD...Wind gusts up to 50 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... Provo, Sandy, Payson, Park City, Heber City, Orem, Lehi, Draper,

* WHAT...Heat index values up to 107. * WHERE...Portions of south central and southwest Illinois and central, east central, and southeast Missouri. * WHEN...Until 8 PM CDT Friday. * 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. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time

* WHAT...Heat index values up to 106. * WHERE...Portions of north central, northeast, and south central Texas. * WHEN...Until 8 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity will increase the risk for heat-related illnesses to occur, particularly for those working or participating in outdoor activities. Take extra precautions when outside by staying hydrated, wearing lightweight and loose fitting clothing, and limiting strenuous

* WHAT...Dangerous rip currents expected. * WHERE...Coastal Palm Beach County. * WHEN...From this evening through Thursday evening. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water. Swim near a lifeguard. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help.

* WHAT...Strong north to south longshore current. * WHERE...Coastal Horry. * WHEN...From 6 AM EDT Wednesday through Wednesday evening. * IMPACTS...Longshore currents can sweep swimmers and surfers into rip currents, piers, jetties, and other hazardous areas. It may sweep swimmers off their feet, making it difficult to return to shore. Caution should be used when in or near the water. Check with lifeguards before entering the ocean for possible hazards you may be swept into.