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| Time | Source | Type | Summary | IEM Radar |
|---|---|---|---|---|
| 2020-08-10 12:00 PM CDT | IEM Text Archive | Severe Weather Statement | Severe Weather Statement (SVSDMX) 742 WWUS53 KDMX 101700 SVSDMX Severe Weather Statement National Weather Service Des Moines IA 1200 PM CDT Mon Aug 10 2020 IAC013-075-083-171-101745- /O.CON.KDMX.SV.W.0150.000000T0000Z-200810T1745Z/ Hardin IA-Black Hawk IA-Tama IA-Grundy IA- 1200 PM CDT Mon Aug 10 2020 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 PM CDT FOR SOUTHEASTERN HARDIN...SOUTHWESTERN BLACK HAWK...NORTHERN TAMA AND GRUNDY COUNTIES... At 1159 AM CDT, a severe thunderstorm was located 7 miles east of Conrad, or 8 miles south of Grundy Center, moving east at 50 mph. HAZARD...70 mph wind gusts and quarter size hail. SOURCE...Trained weather spotters. IMPACT...Hail damage to vehicles is expected. Expect considerable tree damage. Wind damage is also likely to mobile homes, roofs, and outbuildings. Locations impacted include... Eldora, Grundy Center, Hudson, Reinbeck, Dike, Conrad, Wellsburg, Union, Steamboat Rock, Holland, New Providence, Beaman, Lincoln, Whitten, Morrison, Pine Lake State Park, Tf Clark State Park and Eldora Municipal Airport. PRECAUTIONARY/PREPAREDNESS ACTIONS... This is an EXTREMELY DANGEROUS SITUATION. This storm is producing widespread wind damage across the warned area. SEEK SHELTER NOW inside a sturdy structure and stay away from windows. && LAT...LON 4230 9230 4222 9230 4221 9274 4221 9327 4247 9314 4248 9251 4230 9229 TIME...MOT...LOC 1659Z 266DEG 43KT 4225 9272 HAIL...1.00IN WIND...70MPH $$ Cogil | IEM Time Machine · Archive PNG 2020-08-10 17:00 UTC |
| 2020-08-10 12:01 PM CDT | IEM Text Archive | Local Storm Report Text | Local Storm Report Text (LSRDMX) 687 NWUS53 KDMX 101701 LSRDMX PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE DES MOINES IA 1201 PM CDT MON AUG 10 2020 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 1158 AM TSTM WND DMG STATE CENTER 42.02N 93.17W 08/10/2020 MARSHALL IA EMERGENCY MNGR SIGNIFICANT DAMAGE IN STATE CENTER. NUMEROUS CARS BLOWN OFF US30 AND FLIPPED. && $$ FOWLE | — |
| 2020-08-10 12:04 PM CDT | IEM Text Archive | Severe Weather Statement | Severe Weather Statement (SVSDMX) 770 WWUS53 KDMX 101704 SVSDMX Severe Weather Statement National Weather Service Des Moines IA 1204 PM CDT Mon Aug 10 2020 IAC099-123-125-127-157-171-101730- /O.CON.KDMX.SV.W.0151.000000T0000Z-200810T1730Z/ Poweshiek IA-Marshall IA-Marion IA-Tama IA-Mahaska IA-Jasper IA- 1204 PM CDT Mon Aug 10 2020 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 PM CDT FOR POWESHIEK...EASTERN MARSHALL...NORTHEASTERN MARION...TAMA... MAHASKA AND EASTERN JASPER COUNTIES... At 1203 PM CDT, severe thunderstorms were located along a line extending from near Traer to near Victor to 6 miles west of Delta, moving east at 60 mph. These are very dangerous storms. HAZARD...90 mph wind gusts and quarter size hail. Some areas may have winds in excess of 100 mph! SOURCE...Trained weather spotters reporting widespread wind damage. IMPACT...You are in a life-threatening situation. Flying debris may be deadly to those caught without shelter. Mobile homes will be heavily damaged or destroyed. Homes and businesses will have substantial roof and window damage. Expect extensive tree damage and power outages. Locations impacted include... Marshalltown, Oskaloosa, Pella, Grinnell, Toledo, Montezuma, Tama, Traer, Brooklyn, Dysart, New Sharon, Conrad, Meskwaki Casino, Rock Creek Lake, Gladbrook, Le Grand, Victor, Sully, Garwin and Gilman. This includes Interstate 80 between mile markers 175 and 204. PRECAUTIONARY/PREPAREDNESS ACTIONS... This is an EXTREMELY DANGEROUS SITUATION with tornado like wind speeds expected. Mobile homes and high profile vehicles are especially susceptible to winds of this magnitude and may be overturned. For your protection move to an interior room on the lowest floor of a building. These storms have the potential to cause serious injury and significant property damage. && LAT...LON 4151 9241 4123 9241 4134 9292 4172 9287 4221 9299 4224 9230 4151 9230 TIME...MOT...LOC 1703Z 269DEG 52KT 4218 9253 4170 9231 4134 9245 HAIL...1.00IN WIND...90MPH $$ Donavon | IEM Time Machine · Archive PNG 2020-08-10 17:05 UTC |
| 2020-08-10 12:07 PM CDT | IEM Text Archive | Severe Weather Statement | Severe Weather Statement (SVSDMX) 000 WWUS53 KDMX 101707 SVSDMX Severe Weather Statement National Weather Service Des Moines IA 1207 PM CDT Mon Aug 10 2020 IAC013-075-083-171-101745- /O.CON.KDMX.SV.W.0150.000000T0000Z-200810T1745Z/ Hardin IA-Black Hawk IA-Tama IA-Grundy IA- 1207 PM CDT Mon Aug 10 2020 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 PM CDT FOR EAST CENTRAL HARDIN...SOUTHWESTERN BLACK HAWK...NORTHERN TAMA AND GRUNDY COUNTIES... At 1207 PM CDT, a severe thunderstorm was located near Reinbeck, or 11 miles southeast of Grundy Center, moving east at 50 mph. HAZARD...70 mph wind gusts and quarter size hail. SOURCE...Trained weather spotters. IMPACT...Hail damage to vehicles is expected. Expect considerable tree damage. Wind damage is also likely to mobile homes, roofs, and outbuildings. Locations impacted include... Grundy Center, Hudson, Reinbeck, Dike, Conrad, Wellsburg, Holland, Beaman, Lincoln, Morrison and Tf Clark State Park. PRECAUTIONARY/PREPAREDNESS ACTIONS... This is an EXTREMELY DANGEROUS SITUATION. This storm is producing widespread wind damage across the warned area. SEEK SHELTER NOW inside a sturdy structure and stay away from windows. && LAT...LON 4230 9230 4222 9230 4221 9274 4221 9300 4247 9301 4248 9251 4230 9229 TIME...MOT...LOC 1707Z 266DEG 43KT 4225 9261 HAIL...1.00IN WIND...70MPH $$ Cogil | IEM Time Machine · Archive PNG 2020-08-10 17:05 UTC |
| 2020-08-10 12:08 PM CDT | IEM Text Archive | Local Storm Report Text | Local Storm Report Text (LSRDMX) 717 NWUS53 KDMX 101708 LSRDMX PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE DES MOINES IA 1208 PM CDT MON AUG 10 2020 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 1200 PM TSTM WND GST 3 S CHELSEA 41.88N 92.39W 08/10/2020 E90 MPH TAMA IA TRAINED SPOTTER && $$ JAZ | — |
| 2020-08-10 12:13 PM CDT | IEM Text Archive | Severe Thunderstorm Warning | Severe Thunderstorm Warning (SVRDMX) 886 WUUS53 KDMX 101713 SVRDMX IAC013-075-171-101815- /O.NEW.KDMX.SV.W.0153.200810T1713Z-200810T1815Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Des Moines IA 1213 PM CDT Mon Aug 10 2020 The National Weather Service in Des Moines has issued a * Severe Thunderstorm Warning for... Black Hawk County in northeastern Iowa... Northeastern Tama County in central Iowa... Northeastern Grundy County in central Iowa... * Until 115 PM CDT. * At 1212 PM CDT, a severe thunderstorm was located near Reinbeck, or 13 miles east of Grundy Center, moving east at 50 mph. HAZARD...70 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect considerable tree damage. Damage is likely to mobile homes, roofs, and outbuildings. * Locations impacted include... Waterloo, Cedar Falls, Evansdale, Jesup, La Porte City, Hudson, Reinbeck, Dike, Elk Run Heights, Crossroads Mall, Waterloo Municipal Airport, Uni-Dome And McLeod Center, Washburn, Dunkerton, Raymond, Gilbertville, Morrison, Tf Clark State Park and George Wyth State Park. This includes Interstate 380 between mile markers 56 and 73. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. This is an EXTREMELY DANGEROUS SITUATION. This storm has a history of producing widespread wind damage! SEEK SHELTER NOW inside a sturdy structure and stay away from windows! && LAT...LON 4230 9230 4222 9230 4221 9265 4251 9274 4260 9208 4247 9208 4247 9206 4230 9206 TIME...MOT...LOC 1712Z 266DEG 42KT 4231 9252 HAIL...<.75IN WIND...70MPH $$ Cogil | IEM Time Machine · Archive PNG 2020-08-10 17:15 UTC |
| 2020-08-10 12:16 PM CDT | IEM Text Archive | Local Storm Report Text | Local Storm Report Text (LSRDMX) 066 NWUS53 KDMX 101716 LSRDMX PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE DES MOINES IA 1216 PM CDT MON AUG 10 2020 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 1147 AM TSTM WND DMG 2 WSW UNION 42.24N 93.09W 08/10/2020 HARDIN IA TRAINED SPOTTER DAMAGE TO BARNS AND ROOFS. && $$ JAZ | — |
| 2020-08-10 12:18 PM CDT | IEM Text Archive | Local Storm Report Text | Local Storm Report Text (LSRDMX) 600 NWUS53 KDMX 101718 LSRDMX PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE DES MOINES IA 1218 PM CDT MON AUG 10 2020 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 1151 AM TSTM WND GST 2 S MARSHALLTOWN 42.01N 92.91W 08/10/2020 E95 MPH MARSHALL IA STORM CHASER ESTIMATED WINDS OF 90 TO 100 MPH. 1151 AM TSTM WND DMG 2 S MARSHALLTOWN 42.01N 92.91W 08/10/2020 MARSHALL IA STORM CHASER SEVERAL LARGE SECTIONS OF ROOFS BLOWN OFF BUILDINGS ALONG OLD HIGHWAY 30 ON SOUTH PART OF MARSHALLTOWN. && $$ | — |
| 2020-08-10 12:19 PM CDT | IEM Text Archive | Local Storm Report Text | Local Storm Report Text (LSRDMX) 900 NWUS53 KDMX 101719 LSRDMX PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE DES MOINES IA 1219 PM CDT MON AUG 10 2020 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST. | — |
| 2020-08-10 12:20 PM CDT | IEM Text Archive | Local Storm Report Text | Local Storm Report Text (LSRDMX) 802 NWUS53 KDMX 101720 LSRDMX PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE DES MOINES IA 1220 PM CDT MON AUG 10 2020 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 1210 PM TSTM WND DMG 3 SSW GRINNELL 41.70N 92.74W 08/10/2020 POWESHIEK IA TRAINED SPOTTER SEMI BLOWN OVER ON I-80 JUST WEST OF THE GRINNELL INTERCHANGE. && $$ JAZ | — |
| 2020-08-10 12:22 PM CDT | IEM Text Archive | Local Storm Report Text | Local Storm Report Text (LSRDMX) 997 NWUS53 KDMX 101722 LSRDMX PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE DES MOINES IA 1222 PM CDT MON AUG 10 2020 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 1219 PM TSTM WND GST 1 S GRUNDY CENTER 42.34N 92.77W 08/10/2020 E60 MPH GRUNDY IA TRAINED SPOTTER ALONG WITH PEA SIZED HAIL. && $$ JAZ | — |
| 2020-08-10 12:28 PM CDT | IEM Text Archive | Severe Thunderstorm Warning | Severe Thunderstorm Warning (SVRDMX) 988 WUUS53 KDMX 101728 SVRDMX IAC123-157-171-101800- /O.NEW.KDMX.SV.W.0154.200810T1728Z-200810T1800Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Des Moines IA 1228 PM CDT Mon Aug 10 2020 The National Weather Service in Des Moines has issued a * Severe Thunderstorm Warning for... Eastern Poweshiek County in central Iowa... Eastern Tama County in central Iowa... Northeastern Mahaska County in south central Iowa... * Until 100 PM CDT. * At 1227 PM CDT, severe thunderstorms were located along a line extending from 7 miles south of Reinbeck to near Brooklyn to 6 miles northeast of Eddyville, moving east at 70 mph. HAZARD...60 mph wind gusts still possible as these storms depart. SOURCE...Trained Spotters. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Tama, Traer, Brooklyn, Dysart, Victor, Holiday Lake, Deep River, Chelsea, Clutier, Elberon, Barnes City, Rose Hill, Hartwick, Guernsey, Vining, Tf Clark State Park and Toledo Municipal Airport. This includes Interstate 80 between mile markers 195 and 204. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4151 9241 4123 9241 4124 9252 4178 9249 4224 9263 4225 9230 4151 9230 TIME...MOT...LOC 1727Z 271DEG 62KT 4222 9262 4179 9246 4122 9255 HAIL...<.75IN WIND...60MPH $$ Donavon | IEM Time Machine · Archive PNG 2020-08-10 17:30 UTC |
| 2020-08-10 12:28 PM CDT | IEM Text Archive | Severe Weather Statement | Severe Weather Statement (SVSDMX) 947 WWUS53 KDMX 101728 SVSDMX Severe Weather Statement National Weather Service Des Moines IA 1228 PM CDT Mon Aug 10 2020 IAC083-101737- /O.CAN.KDMX.SV.W.0150.000000T0000Z-200810T1745Z/ Hardin IA- 1228 PM CDT Mon Aug 10 2020 ...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL HARDIN COUNTY IS CANCELLED... The severe thunderstorm which prompted the warning has moved out of the warned area. Therefore, the warning has been cancelled. A Severe Thunderstorm Watch remains in effect until 200 PM CDT for central and northeastern Iowa. LAT...LON 4230 9230 4222 9230 4221 9265 4248 9273 4248 9251 4230 9229 TIME...MOT...LOC 1727Z 262DEG 48KT 4229 9224 $$ IAC013-075-171-101745- /O.CON.KDMX.SV.W.0150.000000T0000Z-200810T1745Z/ Black Hawk IA-Tama IA-Grundy IA- 1228 PM CDT Mon Aug 10 2020 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 PM CDT FOR SOUTHWESTERN BLACK HAWK...NORTHEASTERN TAMA AND NORTHEASTERN GRUNDY COUNTIES... At 1227 PM CDT, a severe thunderstorm was located near La Porte City, or 13 miles northwest of Vinton, moving east at 55 mph. HAZARD...70 mph wind gusts and quarter size hail. SOURCE...Trained weather spotters. IMPACT...Hail damage to vehicles is expected. Expect considerable tree damage. Wind damage is also likely to mobile homes, roofs, and outbuildings. Locations impacted include... Hudson, Reinbeck, Dike, Morrison and Tf Clark State Park. PRECAUTIONARY/PREPAREDNESS ACTIONS... This is an EXTREMELY DANGEROUS SITUATION. This storm is producing widespread wind damage across the warned area. SEEK SHELTER NOW inside a sturdy structure and stay away from windows. && LAT...LON 4230 9230 4222 9230 4221 9265 4248 9273 4248 9251 4230 9229 TIME...MOT...LOC 1727Z 262DEG 48KT 4229 9224 HAIL...1.00IN WIND...70MPH $$ Cogil | IEM Time Machine · Archive PNG 2020-08-10 17:30 UTC |
| 2020-08-10 12:32 PM CDT | IEM Text Archive | Severe Weather Statement | Severe Weather Statement (SVSDMX) 902 WWUS53 KDMX 101732 SVSDMX Severe Weather Statement National Weather Service Des Moines IA 1232 PM CDT Mon Aug 10 2020 IAC135-101741- /O.CAN.KDMX.SV.W.0152.000000T0000Z-200810T1745Z/ Monroe IA- 1232 PM CDT Mon Aug 10 2020 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MONROE COUNTY IS CANCELLED... The storms which prompted the warning have moved out of the warned area. Therefore, the warning has been cancelled. A Severe Thunderstorm Watch remains in effect until 200 PM CDT for south central and southeastern Iowa. LAT...LON 4128 9249 4127 9241 4116 9241 4116 9218 4060 9218 4060 9272 TIME...MOT...LOC 1731Z 283DEG 41KT 4116 9207 4051 9258 $$ IAC007-051-123-179-101745- /O.CON.KDMX.SV.W.0152.000000T0000Z-200810T1745Z/ Davis IA-Wapello IA-Mahaska IA-Appanoose IA- 1232 PM CDT Mon Aug 10 2020 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 PM CDT FOR DAVIS...WAPELLO...SOUTHEASTERN MAHASKA AND SOUTHEASTERN APPANOOSE COUNTIES... At 1231 PM CDT, severe thunderstorms were located along a line extending from near Packwood to near Lancaster, moving east at 45 mph. HAZARD...60 mph wind gusts. SOURCE...Trained weather spotters. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Ottumwa, Bloomfield, Ottumwa Industrial Airport, Eldon, Fremont, Agency, Moulton, Pulaski, Drakesville, Kirkville, Floris, Chillicothe, Oskaloosa Municipal Airport, Lake Wapello State Park and Bloomfield Municipal Airport. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4128 9249 4127 9241 4116 9241 4116 9218 4060 9218 4060 9272 TIME...MOT...LOC 1731Z 283DEG 41KT 4116 9207 4051 9258 HAIL...<.75IN WIND...60MPH $$ Donavon | IEM Time Machine · Archive PNG 2020-08-10 17:30 UTC |
| 2020-08-10 12:35 PM CDT | IEM Text Archive | Local Storm Report Text | Local Storm Report Text (LSRDMX) 672 NWUS53 KDMX 101735 LSRDMX PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE DES MOINES IA 1235 PM CDT MON AUG 10 2020 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 1129 AM TSTM WND DMG NEWTON 41.70N 93.05W 08/10/2020 JASPER IA TRAINED SPOTTER DAMAGE REPORTED THROUGHOUT TOWN. TREE DAMAGE WITH ROADS BLOCKED. DELAYED REPORT AT 12:30 PM. RADAR ESTIMATED 11:29 AM. && $$ REV | — |
| 2020-08-10 12:37 PM CDT | IEM Text Archive | Severe Weather Statement | Severe Weather Statement (SVSDMX) 065 WWUS53 KDMX 101737 SVSDMX Severe Weather Statement National Weather Service Des Moines IA 1237 PM CDT Mon Aug 10 2020 IAC013-075-171-101815- /O.CON.KDMX.SV.W.0153.000000T0000Z-200810T1815Z/ Black Hawk IA-Tama IA-Grundy IA- 1237 PM CDT Mon Aug 10 2020 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 PM CDT FOR BLACK HAWK...NORTHEASTERN TAMA AND NORTHEASTERN GRUNDY COUNTIES... At 1237 PM CDT, a severe thunderstorm was located over La Porte City, or 13 miles southeast of Waterloo, moving east at 45 mph. HAZARD...70 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect considerable tree damage. Damage is likely to mobile homes, roofs, and outbuildings. Locations impacted include... Waterloo, Cedar Falls, Evansdale, Jesup, La Porte City, Hudson, Elk Run Heights, Crossroads Mall, Waterloo Municipal Airport, Uni-Dome And McLeod Center, Washburn, Dunkerton, Raymond, Gilbertville, Tf Clark State Park and George Wyth State Park. This includes Interstate 380 between mile markers 56 and 73. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. This is an EXTREMELY DANGEROUS SITUATION. SEEK SHELTER NOW inside a sturdy structure and stay away from windows. && LAT...LON 4230 9230 4222 9230 4221 9253 4253 9258 4260 9208 4247 9208 4247 9206 4230 9206 TIME...MOT...LOC 1737Z 264DEG 38KT 4234 9218 HAIL...<.75IN WIND...70MPH $$ Cogil | IEM Time Machine · Archive PNG 2020-08-10 17:35 UTC |
| 2020-08-10 12:38 PM CDT | IEM Text Archive | Local Storm Report Text | Local Storm Report Text (LSRDMX) 321 NWUS53 KDMX 101738 LSRDMX PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE DES MOINES IA 1238 PM CDT MON AUG 10 2020 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... .. | — |
| 2020-08-10 12:39 PM CDT | IEM Text Archive | Local Storm Report Text | Local Storm Report Text (LSRDMX) 975 NWUS53 KDMX 101739 LSRDMX PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE DES MOINES IA 1239 PM CDT MON AUG 10 2020 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 1056 AM TSTM WND DMG CUMMING 41.48N 93.76W 08/10/2020 WARREN IA PUBLIC POWER OUT NEAR CUMMING, IOWA. && $$ REV | — |
| 2020-08-10 12:40 PM CDT | IEM Text Archive | Severe Weather Statement | Severe Weather Statement (SVSDMX) 329 WWUS53 KDMX 101740 SVSDMX Severe Weather Statement National Weather Service Des Moines IA 1240 PM CDT Mon Aug 10 2020 IAC013-075-171-101749- /O.EXP.KDMX.SV.W.0150.000000T0000Z-200810T1745Z/ Black Hawk IA-Tama IA-Grundy IA- 1240 PM CDT Mon Aug 10 2020 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN BLACK HAWK... NORTHEASTERN TAMA AND NORTHEASTERN GRUNDY COUNTIES WILL EXPIRE AT 1245 PM CDT... The storm which prompted the warning has moved out of the area. Therefore, the warning will be allowed to expire. However, an additional Severe Thunderstorm Warning remains in effect in portions of Tama and Black Hawk Counties. A Severe Thunderstorm Watch remains in effect until 200 PM CDT for central and northeastern Iowa. LAT...LON 4230 9230 4222 9230 4221 9265 4248 9273 4248 9251 4230 9229 TIME...MOT...LOC 1739Z 262DEG 48KT 4231 9205 $$ Cogil | IEM Time Machine · Archive PNG 2020-08-10 17:40 UTC |
| 2020-08-10 12:40 PM CDT | IEM Text Archive | Local Storm Report Text | Local Storm Report Text (LSRDMX) 676 NWUS53 KDMX 101740 LSRDMX PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE DES MOINES IA 1240 PM CDT MON AUG 10 2020 | — |
| 2020-08-10 12:42 PM CDT | IEM Text Archive | Local Storm Report Text | Local Storm Report Text (LSRDMX) 488 NWUS53 KDMX 101742 LSRDMX PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE DES MOINES IA 1242 PM CDT MON AUG 10 2020 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 1048 AM TSTM WND GST ADEL 41.62N 94.03W 08/10/2020 M70 MPH DALLAS IA TRAINED SPOTTER WIND REPORTED IN CITY OF ADEL. LIMBS DOWN, OBJECTS BLOWN AROUND. && $$ REV | — |
| 2020-08-10 12:46 PM CDT | IEM Text Archive | Severe Weather Statement | Severe Weather Statement (SVSDMX) 000 WWUS53 KDMX 101746 SVSDMX Severe Weather Statement National Weather Service Des Moines IA 1246 PM CDT Mon Aug 10 2020 IAC123-157-171-101756- /O.CAN.KDMX.SV.W.0154.000000T0000Z-200810T1800Z/ Poweshiek IA-Tama IA-Mahaska IA- 1246 PM CDT Mon Aug 10 2020 ...THE SEVERE THUNDERSTORM WARNING FOR EASTERN POWESHIEK...EASTERN TAMA AND NORTHEASTERN MAHASKA COUNTIES IS CANCELLED... The storms which prompted the warning have moved out of the area. Therefore, the warning has been cancelled. A Severe Thunderstorm Watch remains in effect until 200 PM CDT for south central and central Iowa. LAT...LON 4151 9241 4123 9241 4124 9252 4178 9249 4224 9263 4225 9230 4151 9230 TIME...MOT...LOC 1744Z 271DEG 62KT 4221 9221 4178 9205 4121 9215 $$ Donavon | IEM Time Machine · Archive PNG 2020-08-10 17:45 UTC |
| 2020-08-10 12:47 PM CDT | IEM Text Archive | Severe Weather Statement | Severe Weather Statement (SVSDMX) 152 WWUS53 KDMX 101747 SVSDMX Severe Weather Statement National Weather Service Des Moines IA 1247 PM CDT Mon Aug 10 2020 IAC075-171-101757- /O.CAN.KDMX.SV.W.0153.000000T0000Z-200810T1815Z/ Tama IA-Grundy IA- 1247 PM CDT Mon Aug 10 2020 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN TAMA AND NORTHEASTERN GRUNDY COUNTIES IS CANCELLED... The severe thunderstorm which prompted the warning has moved out of the warned area. Therefore, the warning has been cancelled. A Severe Thunderstorm Watch remains in effect until 200 PM CDT for northeastern Iowa. LAT...LON 4230 9230 4250 9231 4260 9208 4247 9208 4247 9206 4230 9206 TIME...MOT...LOC 1747Z 264DEG 36KT 4235 9210 $$ IAC013-101815- /O.CON.KDMX.SV.W.0153.000000T0000Z-200810T1815Z/ Black Hawk IA- 1247 PM CDT Mon Aug 10 2020 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 PM CDT FOR SOUTHEASTERN BLACK HAWK COUNTY... At 1247 PM CDT, a severe thunderstorm was located near La Porte City, or 13 miles north of Vinton, moving east at 40 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Waterloo, Evansdale, Jesup, La Porte City, Elk Run Heights, Washburn, Dunkerton, Raymond and Gilbertville. This includes Interstate 380 between mile markers 56 and 71. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4230 9230 4250 9231 4260 9208 4247 9208 4247 9206 4230 9206 TIME...MOT...LOC 1747Z 264DEG 36KT 4235 9210 HAIL...<.75IN WIND...60MPH $$ Cogil | IEM Time Machine · Archive PNG 2020-08-10 17:45 UTC |
| 2020-08-10 12:49 PM CDT | IEM Text Archive | Local Storm Report Text | Local Storm Report Text (LSRDMX) 283 NWUS53 KDMX 101749 LSRDMX PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE DES MOINES IA 1249 PM CDT MON AUG 10 2020 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 1201 PM TSTM WND DMG 3 N TOLEDO 42.04N 92.58W 08/10/2020 TAMA | — |
| 2020-08-10 12:51 PM CDT | IEM Text Archive | Local Storm Report Text | Local Storm Report Text (LSRDMX) 649 NWUS53 KDMX 101751 LSRDMX PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE DES MOINES IA 1251 PM CDT MON AUG 10 2020 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 1140 AM TSTM WND GST 2 SSW PRAIRIE CITY 41.57N 93.26W 08/10/2020 M85 MPH JASPER IA MESONET MESONET STATION NSWI4 NEIL SMITH NWR RAWS. && $$ FOWLE | — |
| 2020-08-10 12:52 PM CDT | IEM Text Archive | Local Storm Report Text | Local Storm Report Text (LSRDMX) 926 NWUS53 KDMX 101752 LSRDMX PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE DES MOINES IA 1252 PM CDT MON AUG 10 2020 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 1143 AM TSTM WND GST 3 SW MARSHALLTOWN 42.00N 92.96W 08/10/2020 M91 MPH MARSHALL IA MESONET MESONET STATION RMTI4 MARSHALLTOWN (US 30) - IA DOT RWIS. && $$ FOWLE | — |
| 2020-08-10 12:53 PM CDT | IEM Text Archive | Local Storm Report Text | Local Storm Report Text (LSRDMX) 416 NWUS53 KDMX 101753 LSRDMX PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE DES MOINES IA 1253 PM CDT MON AUG 10 2020 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 1138 AM TSTM WND GST 3 S HUBBARD 42.27N 93.30W 08/10/2020 M77 MPH HARDIN IA MESONET MESONET STATION FW1669 HUBBARD. && $$ FOWLE | — |
| 2020-08-10 12:54 PM CDT | IEM Text Archive | Local Storm Report Text | Local Storm Report Text (LSRDMX) 705 NWUS53 KDMX 101754 LSRDMX PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE DES MOINES IA 1254 PM CDT MON AUG 10 2020 ..TIME... ...EVENT... ...CITY L | — |
| 2020-08-10 12:58 PM CDT | IEM Text Archive | Local Storm Report Text | Local Storm Report Text (LSRDMX) 724 NWUS53 KDMX 101758 LSRDMX PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE DES MOINES IA 1258 PM CDT MON AUG 10 2020 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... .. | — |
| 2020-08-10 01:03 PM CDT | IEM Text Archive | Severe Weather Statement | Severe Weather Statement (SVSDMX) 571 WWUS53 KDMX 101803 SVSDMX Severe Weather Statement National Weather Service Des Moines IA 103 PM CDT Mon Aug 10 2020 IAC013-101813- /O.CAN.KDMX.SV.W.0153.000000T0000Z-200810T1815Z/ Black Hawk IA- 103 PM CDT Mon Aug 10 2020 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BLACK HAWK COUNTY IS CANCELLED... The storm which prompted the warning has moved out of the area. Therefore, the warning has been cancelled. A Severe Thunderstorm Watch remains in effect until 200 PM CDT for northeastern Iowa. LAT...LON 4230 9230 4250 9231 4260 9208 4247 9208 4247 9206 4230 9206 TIME...MOT...LOC 1759Z 266DEG 42KT 4236 9185 $$ Cogil | IEM Time Machine · Archive PNG 2020-08-10 18:05 UTC |
| 2020-08-10 01:24 PM CDT | IEM Text Archive | Local Storm Report Text | Local Storm Report Text (LSRDMX) 008 NWUS53 KDMX 101824 LSRDMX PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE DES MOINES IA 124 PM CDT MON AUG 10 2020 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 1115 AM TSTM WND DMG ZEARING 42.16N 93.30W 08/10/2020 STORY IA TRAINED SPOTTER TREE AND BIN DAMAGE. TIME ESTIMATED. && $$ JAZ | — |
| 2020-08-10 01:39 PM CDT | IEM Text Archive | Local Storm Report Text | Local Storm Report Text (LSRDVN) 083 NWUS53 KDVN 101839 LSRDVN PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE QUAD CITIES IA IL 139 PM CDT MON AUG 10 2020 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 0122 PM TSTM WND GST BURLINGTON REGIONAL AIR 40.78N 91.12W 08/10/2020 M60 MPH DES MOINES IA ASOS && $$ GROSS | — |
| 2020-08-10 01:46 PM CDT | IEM Text Archive | Local Storm Report Text | Local Storm Report Text (LSRDMX) 294 NWUS53 KDMX 101846 LSRDMX PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE DES MOINES IA 146 PM CDT MON AUG 10 2020 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 1124 AM TSTM WND GST 1 WSW AMES 42.02N 93.64W 08/10/2020 E70 MPH STORY IA TRAINED SPOTTER IOWA STATE CAMPUS. 65 TO 75 MPH WINDS ESTIMATED. EXTENSIVE TREE DAMAGE THROUGHOUT AMES. NO POWER. && $$ REV | — |