Strong storms, extreme heat on the way to Des Moines

A combination of high temperatures and severe storms could make for dangerous weather conditions in parts of Iowa this week.Here’s what to know about severe weather chances in the metro.Interactive Radar | Weather AlertsSevere thunderstorm warning back for four countiesParts of four counties are now under a severe thunderstorm warning.A portion of east Polk County, northern Marion County and southwestern Jasper County are under a warning as of 1:04 p.m. through 1:45 p.m.Northeastern Warren County was added to the warning later and the warning is extended until 2 p.m.More than 12,000 without power around Des MoinesMidAmerican Energy is reporting about 12,000 without power in the Des Moines metro as of 11 a.m.You can see the updated outage map here.More severe weather could be coming soonThe first severe thunderstorm warning issued this morning has expired for most of central Iowa. But we’re not in the clear just yet.Watch the video above to see more about potential severe weather returning to the metro later today.Severe thunderstorm warning issued for more central Iowa countiesThe National Weather Service in Des Moines has added another severe thunderstorm warning. The new warning includes parts of Lucas, Poweshiek, Polk, Madison, Marion, Mahaska, Jasper, Clarke and Warren counties.Wind gusts of around 60 mph and penny-sized hail have been reported.The warning will last until 10:45 a.m.TIMELAPSE: Violent thunderstorm shakes KCCI Skycam, darkens Des Moines skies over Iowa CapitolSevere thunderstorm watch in effect for most of southern and eastern Iowa A severe thunderstorm watch is in effect for more than a dozen Iowa counties through 4 p.m. due to the ongoing storms.The following counties are under the watch:AdairAppanooseClarkeDavisDecaturJasperJeffersonKeokukLeeLucasMadisonMahaskaMarionMonroePoweshiekRinggoldUnionVan BurenWapelloWarrenWayneSevere thunderstorm warning active for Polk, Story, Dallas countiesThe National Weather Service in Des Moines issued a severe thunderstorm warning for multiple counties in central Iowa.Polk, Story, Boone and Dallas counties were all listed. Portions of Greene, Madison, Guthrie and Warren counties are also under the warning.The warning is set to expire at 10 a.m.Tuesday and Wednesday high temperatures, severe stormsTuesday and Wednesday could see feel-like temperatures of higher than 105 degrees. Both days will be weather Impact Days.There will also be a chance for strong storms Tuesday morning, Tuesday night into Wednesday morning, and Wednesday night into Thursday, according to KCCI morning meteorologist Jon Rivas. All modes of severe weather will be possible, but the main threat will be strong wind gusts. Polk County activates Extreme Temperature PlanThe Polk County Extreme Temperature Plan, which activates cooling centers and provides free access via DART bus to those centers, went into effect Monday.You can read more about the plan and what it means here.Ways to beat the heatCheck out KCCI’s list of places to go swimming in central Iowa. Or cool off with a sweet treat from this list of more than three dozen local ice cream shops. Iowa weather forecastTuesday: Mostly sunny and hot. Heat index as high as 105F. Storms possible during the day, then again later Tuesday night. High 94F. Winds SE at 5 to 10 mph. Gusts up to 15 mph.Tuesday night: Chance of a shower or storm overnight. Low 74F. Winds SSW at 5 to 10 mph.Wednesday: Mostly sunny and hot. Heat index up to 110F. Storms possible toward Wednesday evening into Wednesday night. High 97F. Winds S at 10 to 15 mph. Gusts up to 20 mph.Wednesday night: Good chance of storms overnight. Low 73F. Winds E at 5 to 10 mph.