Johnson County Hail Map & Storm Reports

“Tree limbs downed on wires. Time estimated using radar. (DVN)”

SPC verified report · Oxford

“At 1142 AM CDT, trained weather spotters reported strong thunderstorms along a line extending from near Montpelier to near Fruitland to near Riverside. Movement was southeast at 45 mph. Hazard: Wind gusts up to 50 mph. Impact: Strong winds could break small tree limbs and blow around unsecured objects. Locations impacted include...”

NWS severe weather mention · Johnson County

“At 1037 AM CDT, Doppler radar was tracking strong thunderstorms along a line extending from Stone City to near Blairstown. Movement was southeast at 35 mph. Hazard: Wind gusts up to 50 mph. Impact: Strong winds could break small tree limbs and blow around unsecured objects. Locations impacted include...”

NWS severe weather mention · Johnson County

“At 707 PM CDT, Doppler radar was tracking strong thunderstorms along a line extending from near Hills to near Hayesville. Movement was east at 20 mph. Hazard: Wind gusts up to 50 mph and minor flooding. Impact: Strong winds could break small tree limbs and blow around unsecured objects. Slowing or redirecting of traffic due to ponding or flowing water.”

NWS severe weather mention · Johnson County

“At 653 PM CDT, Doppler radar was tracking strong thunderstorms along a line extending from near Andrew to Rochester. Movement was east at 30 mph. Hazard: Winds in excess of 40 mph, minor flooding and penny size hail. Impact: Gusty winds could cause minor tree limb damage and blow around unsecured objects. Minor damage to outdoor objects is possible.”

NWS severe weather mention · Johnson County

“Tree fell and damaged fence on Washington Ave. (DVN)”

SPC verified report · 1 NNW North Liberty

“At 1250 PM CDT, Doppler radar was tracking strong thunderstorms along a line extending from near Williamsburg to Hayesville. Movement was east at 35 mph. Hazard: Winds in excess of 40 mph and penny size hail. Impact: Gusty winds could cause minor tree limb damage and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include...”

NWS severe weather mention · Johnson County

“Wind gust measured by house anemometer and 1 inch tree limbs down. Time estimated by radar. (DVN)”

SPC verified report · 2 SE Iowa City

“Tree with 4 to 6 inch diameter trunk snapped at the base. (DVN)”

SPC verified report · 1 ESE Iowa City

“Strong south to southeast winds may develop on the northern and western edge of a cluster of showers and thunderstorms tracking across southeast Iowa into west-central Illinois. Winds could gust between 40 to 50 mph at times through the mid to late morning. Unsecured outdoor objects may be blown around and the strongest gusts could bring down tree branches.”

NWS severe weather mention · Johnson County

“Gusty winds are expected over the next couple hours flowing out of the backside of a cluster of showers and thunderstorms. Southeast wind gusts could briefly reach the 40 to 50 MPH range as these winds move through. The winds will then subside after the Midnight hour. Unsecured outdoor objects may be blown around and smaller tree branches may break.”

NWS severe weather mention · Johnson County

“At 455 PM CDT, Doppler radar was tracking thunderstorms along a line extending from near Iowa City to near Olds. Movement was east at 40 mph. Hazard: Wind gusts of 50 to 55 mph. Impact: Strong winds could break tree limbs, knock down weak trees and blow around unsecured objects. Blowing dust is possible near agricultural fields. Locations impacted include...”

NWS severe weather mention · Johnson County

“Gusty winds are expected late this morning into the early afternoon as an area of rain and embedded thunderstorms continues to shift eastward through portions of eastern Iowa and northwest Illinois. Winds will increase on the western edge of the shield of precipitation with gusts between 40 to 50 mph possible out of an east to southeasterly direction.”

NWS severe weather mention · Johnson County

“At 513 PM CDT, Doppler radar was tracking strong thunderstorms along a line extending from near Winthrop to near Conroy. Movement was northeast at 45 mph. Hazard: Wind gusts up to 50 mph and penny size hail. Impact: Strong winds could break small tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include...”

NWS severe weather mention · Johnson County

“At 905 PM CDT, Doppler radar was tracking a strong thunderstorm over Richmond, or 9 miles north of Washington, moving northeast at 45 mph. Hazard: Wind gusts up to 50 mph. Impact: Strong winds could break small tree limbs and blow around unsecured objects. Locations impacted include...”

NWS severe weather mention · Johnson County

“At 816 PM CDT, Doppler radar was tracking a strong thunderstorm over Harper, or 8 miles east of Sigourney, moving north at 45 mph. Hazard: Wind gusts up to 50 mph and penny size hail. Impact: Strong winds could break small tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include...”

NWS severe weather mention · Johnson County

“Corrects previous tstm wnd gst report from 2 SE Iowa City of a 60 MPH. measured a 60 knots gust on home weather station. (DVN)”

SPC verified report · 2 SE Iowa City

“Power lines downed in the area due to strong thunderstorm winds. (DVN)”

SPC verified report · 3 ESE Iowa City

“Corrects previous tstm wnd gst report of 61 MPH from Lone Tree. Measured wind gust of 71 MPH at School in town. Tree blown over onto powerlines. The time of the event w (DVN)”

SPC verified report · Lone Tree

“Strong south-southwesterly winds will continue this afternoon through the early evening hours, with occasional gusts as high as 45 mph. There are also some developing showers and a few isolated thunderstorms this afternoon that could help generate stronger wind gusts up to 50 mph. If traveling on east-to-west oriented roads, be prepared for gusty crosswinds, especially in high profile vehicles.”

NWS severe weather mention · Johnson County

“Strong south to southwest winds with sustained speeds of 20 to 30 MPH and occasional gusts up to 50 MPH will continue into the late afternoon today. If traveling on east to west roads be prepared for gusty crosswinds especially in high profile vehicles. secure all loose objects. Winds will begin to diminish late this afternoon.”

NWS severe weather mention · Johnson County

“An EF0 tornado lofted a corn crib... snapped trees... bent an auger... and partially destroyed a roof on a farm outbuilding. (DVN)”

SPC verified report · 3 SW Downey

“At 215 AM CDT, Doppler radar was tracking strong thunderstorms along a line extending from near Tipton to near West Branch to near Hills. Movement was east at 30 mph. Hazard: Nickel size hail. Impact: Minor damage to outdoor objects is possible. Locations impacted include...”

NWS severe weather mention · Johnson County

“At 129 AM CDT, Doppler radar was tracking a strong thunderstorm near Tiffin, or 9 miles west of Iowa City, moving east at 35 mph. Hazard: Wind gusts up to 50 mph and nickel size hail. Impact: Strong winds could break small tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include...”

NWS severe weather mention · Johnson County

“AFFECTED AREA...Knox, Cedar, Thurston, Antelope, Pierce, Wayne, Boone, Madison, Stanton, Cuming, Burt, Platte, Monona, Colfax, Dodge, Washington, Butler, Saunders, Douglas, Sarpy, Harrison, Shelby, Seward, Lancaster, Cass, Otoe, Pottawattamie, Saline, Mills, Montgomery, Jefferson, Gage, Fremont, Johnson, Page, Nemaha, Pawnee, and Richardson Counties. TIMING...From 9 AM to 10 PM CDT this evening.”

NWS severe weather mention · Johnson County

“The National Weather Service in Omaha/Valley has cancelled the Red Flag Warning. AFFECTED AREA...Thurston, Boone, Madison, Stanton, Cuming, Burt, Platte, Monona, Colfax, Dodge, Washington, Butler, Saunders, Douglas, Sarpy, Harrison, Shelby, Seward, Lancaster, Cass, Otoe, Pottawattamie, Saline, Mills, Montgomery, Jefferson, Gage, Fremont, Johnson, Page, Nemaha, Pawnee, and Richardson Counties.”

NWS severe weather mention · Johnson County

“WHAT...Northwest winds 25 to 30 mph with gusts up to 60 mph. WHERE...Portions of northwest and west central Illinois, east central, northeast, and southeast Iowa, and northeast Missouri. WHEN...Until 6 AM CDT early this morning. IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles.”

NWS severe weather mention · Johnson County

“WHAT...Northwest winds 25 to 35 mph with gusts of 50 to 60 mph expected. WHERE...Portions of northwest and west central Illinois, east central, northeast, and southeast Iowa, and northeast Missouri. WHEN...Until 10 AM CDT Monday. IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles.”

NWS severe weather mention · Johnson County

“WHAT...Northwest winds 30 to 40 mph with gusts up to 60 mph. WHERE...Portions of southwest Iowa and east central, northeast, and southeast Nebraska. WHEN...Until 1 AM CDT Monday. IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles.”

NWS severe weather mention · Johnson County

“WHAT...Northwest winds 35 to 45 mph with gusts up to 65 mph expected. A few isolated gusts to 70 mph are possible. WHERE...Portions of eastern Nebraska and west-central into southwest Iowa. WHEN...From 7 AM Sunday to 1 AM CDT Monday. IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages may occur. Travel will be difficult, especially for high profile vehicles.”

NWS severe weather mention · Johnson County

“WHAT...Northwest winds 35 to 45 mph with gusts up to 65 mph expected. A few gusts to 70 mph possible. WHERE...Portions of southwest and west central Iowa and east central, northeast, and southeast Nebraska. WHEN...From 7 AM Sunday to 1 AM CDT Monday. IMPACTS...Very strong winds may cause damage to trees and isolated to scattered power outages.”

NWS severe weather mention · Johnson County

“WHAT...Northwest winds 30 to 40 mph with gusts up to 60 mph possible. WHERE...Portions of southwest and west central Iowa and east central, northeast, and southeast Nebraska. WHEN...From Sunday morning through late Sunday night. IMPACTS...Damaging winds could blow down trees and power lines. Some power outages are possible. Travel could be difficult, especially for high profile vehicles.”

NWS severe weather mention · Johnson County

“WHAT...Northwest winds 30 to 40 mph with gusts up to 60 mph possible. WHERE...Portions of southwest and west central Iowa and east central, northeast, and southeast Nebraska. WHEN...From Sunday morning through late Sunday night. IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles.”

NWS severe weather mention · Johnson County

“AFFECTED AREA...Knox, Cedar, Thurston, Antelope, Pierce, Wayne, Boone, Madison, Stanton, Cuming, Burt, Platte, Monona, Colfax, Dodge, Washington, Butler, Saunders, Douglas, Sarpy, Harrison, Shelby, Seward, Lancaster, Cass, Otoe, Pottawattamie, Saline, Mills, Montgomery, Jefferson, Gage, Fremont, Johnson, Page, Nemaha, Pawnee, and Richardson Counties. TIMING...Until midnight CDT tonight.”

NWS severe weather mention · Johnson County

“WHAT...For the Wind Advisory, south winds 25 to 30 mph with gusts up to 45 mph. For the High Wind Warning, west winds 25 to 35 mph with gusts up to 60 mph expected. WHERE...Benton, Iowa, Johnson, Linn, Buchanan, and Delaware Counties. WHEN...For the Wind Advisory, until 1 AM CDT Friday. For the High Wind Warning, from 1 AM to 3 PM CDT Friday.”

NWS severe weather mention · Johnson County

“10 minutes of quarter size hail. Hail is covering the ground. (DVN)”

SPC verified report · Iowa City

“WHAT...West winds 25 to 30 mph with gusts up to 50 mph. WHERE...Portions of northwest Illinois and east central and northeast Iowa. WHEN...Until 6 PM CST this evening. IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.”

NWS severe weather mention · Johnson County

“...Critical Fire Weather Conditions Continue... AFFECTED AREA...Portions of eastern Iowa, northwest Illinois, and northeast Missouri. TIMING...Until 8 PM CST this evening. WINDS...West-southwest winds 25 to 30 mph, with gusts up to 50 mph. RELATIVE HUMIDITY...As low as 15 percent. IMPACTS...Any fire that develops will quickly spread out of control. Fire behavior is expected to be extreme.”

NWS severe weather mention · Johnson County

“...Critical Fire Weather Conditions Possible Wednesday... The National Weather Service in the Quad Cities continues a Fire Weather Watch for strong winds, low relative humidity, and plentiful dry vegetation. AFFECTED AREA...Portions of eastern Iowa and northwest Illinois TIMING...From Wednesday morning through Wednesday evening. WINDS...Southwest 20 to 30 mph with gusts up to 50 mph.”

NWS severe weather mention · Johnson County

“...EXTREME COLD WATCH REMAINS IN EFFECT FROM LATE THURSDAY NIGHT THROUGH SATURDAY MORNING... WHAT...For the High Wind Warning, northwest winds 20 to 30 mph with gusts up to 45 to 55 mph expected. For the Extreme Cold Watch, dangerously cold wind chills as low as 35 below possible. WHERE...Cedar, Iowa, Johnson, Muscatine, Keokuk, Louisa, and Washington Counties.”

NWS severe weather mention · Johnson County

“...EXTREME COLD WATCH REMAINS IN EFFECT FROM LATE THURSDAY NIGHT THROUGH SATURDAY MORNING... WHAT...For the High Wind Warning, northwest winds 20 to 30 mph with gusts up to 45 to 55 mph expected. For the Extreme Cold Watch, dangerously cold wind chills as low as 35 below possible. WHERE...Cedar, Iowa, Johnson, Muscatine, Keokuk, Louisa, and Washington Counties.”

NWS severe weather mention · Johnson County

“WHAT...Snow. Additional snow accumulations up to two inches along and north of Highway 30. Strong northwest winds gusting up to 45 to 55 mph may lead to significant blowing snow in open and rural areas, and to sudden reductions in visibility. WHERE...Portions of northwest Illinois and east central and northeast Iowa. WHEN...Until 9 AM CST Monday.”

NWS severe weather mention · Johnson County

“WHAT...Snow. Additional snow accumulations between 1 and 3 inches north of Highway 30 and an inch or less to the south. Strong northwest winds gusting up to 45 to 55 mph may lead to significant blowing snow in open and rural areas, and to sudden reductions in visibility. WHERE...Portions of northwest Illinois and east central and northeast Iowa. WHEN...Until 9 AM CST Monday.”

NWS severe weather mention · Johnson County

“WHAT...For the Dense Fog Advisory, visibility one quarter mile or less in dense fog. For the Wind Advisory, northwest winds 25 to 35 mph with gusts up to 45 to 55 mph expected. WHERE...Portions of northwest Illinois and east central and northeast Iowa. WHEN...For the Dense Fog Advisory, until noon CST Sunday. For the Wind Advisory, from 2 PM Sunday to 6 PM CST Monday.”

NWS severe weather mention · Johnson County

“WHAT...For the Dense Fog Advisory, visibility one quarter mile or less in dense fog. For the Wind Advisory, northwest winds 25 to 35 mph with gusts up to 45 to 55 mph expected. WHERE...Portions of northwest Illinois and east central and northeast Iowa. WHEN...For the Dense Fog Advisory, until noon CST Sunday. For the Wind Advisory, from 2 PM Sunday to 6 PM CST Monday.”

NWS severe weather mention · Johnson County

“At 640 AM CST, Doppler radar was tracking line of showers with strong winds along a line extending from near Traer to near Queen City. Movement was east at 45 mph. Hazard: Wind gusts up to 55 mph. Impact: Strong winds could break small tree limbs and blow around unsecured objects. Locations impacted include...”

NWS severe weather mention · Johnson County

“At 640 AM CST, Doppler radar was tracking line of heavy rain along a line extending from near Traer to near Queen City. Movement was east at 45 mph. Hazard: Wind gusts up to 55 mph. Impact: Strong winds could break small tree limbs and blow around unsecured objects. Locations impacted include...”

NWS severe weather mention · Johnson County

“At 1156 PM CDT, Doppler radar was tracking a line of thunderstorms along a line extending from Lone Tree to near Abingdon. Movement was east at 45 mph. Hazard: Winds in excess of 40 mph and half inch hail. Impact: Gusty winds could cause minor tree limb damage and blow around unsecured objects. Minor damage to outdoor objects is possible. Strong thunderstorms will be near...”

NWS severe weather mention · Johnson County

“At 1116 PM CDT, Doppler radar was tracking a line of thunderstorms extending from Lowden to near Tiffin. Movement was southeast at 20 mph. Hazard: Winds in excess of 40 mph and half inch hail. Impact: Gusty winds could cause minor tree limb damage and blow around unsecured objects. Minor damage to outdoor objects is possible. Strong thunderstorms will be near...”

NWS severe weather mention · Johnson County