Overview
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Multiple rounds of thunderstorms tracked across the area early Sunday, bringing very heavy rain, frequent lightning, and some localized gusty winds. Rainfall rates over 2"/hr on top of saturated ground caused flash flooding with water over roadways and creeks overflowing. Late afternoon and evening storms brought more heavy rain and three brief tornadoes in Lee county in Iowa and Clark county in Missouri. No damage was reported or seen with these tornadoes. |
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| Heavy Rain Summary | St. Francisville, MO Tornado Infographic | Kahoka, MO Tornado Infographic |
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Public Information Statement |
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| Summitville, IA Tornado Infographic |
Tornadoes
Select a tornado from the table to zoom into the track and view more information. The default table view is limited to 8 tracks, but can be scrolled by a mouse wheel or dynamically expanded. Additionally, the table can fill the entire window by clicking the small circular expanding arrow icon at the very top right of the table and returned to its original size by clicking the button again. The side information panel that opens over the map can be closed using the "X" on the upper right corner of the pop-up. Zoom into the map and click damage points to see detailed information and pictures from the surveys.
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NOTE: times shown below are local to your device's time zone. |
The Enhanced Fujita (EF) Scale classifies tornadoes into the following categories:
| EF0 Weak 65-85 mph |
EF1 Moderate 86-110 mph |
EF2 Significant 111-135 mph |
EF3 Severe 136-165 mph |
EF4 Extreme 166-200 mph |
EF5 Catastrophic 200+ mph |
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| Tornadoes that fail to impact any ratable damage indicators on the EF-Scale are rated EF-Unknown (EF-U) | |||||
Rain Reports
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| 48-hr Rainfall Ending 8/10 | 48-hr Coop / CoCoRaHS Reports |
Dubuque, IA Record Rainfall - Aug 10th |
...Highest 48-hr Rainfall Reports... Observations are collected from a variety of sources with varying equipment and exposures. We thank all volunteer weather observers for their dedication. Not all data listed are considered official. Location Amount Time/Date Provider New Era 6.25 in 0747 PM 08/10 Trained Spotter Dubuque 7 SSW 5.45 in 0600 AM 08/11 COOP 3 SSW Sweetland Center 5.00 in 1126 AM 08/10 Public Muscatine 1.4 N 4.60 in 0700 AM 08/11 COCORAHS Muscatine 3.0 NE 4.53 in 0800 AM 08/11 COCORAHS 2 N Muscatine 4.39 in 0700 AM 08/11 COOP Walcott 4.30 in 1109 AM 08/10 NWS Employee Dundee 4.30 in 1235 PM 08/10 Emergency Mngr Galena 0.8 WSW 4.15 in 0700 AM 08/11 COCORAHS Peosta 2.9 E 4.12 in 0700 AM 08/11 COCORAHS Lowden 4.11 in 0700 AM 08/11 CO-OP Observer 3 ENE Lamont 4.00 in 1235 PM 08/10 Emergency Mngr 1 NW Dubuque 3.80 in 1205 PM 08/10 Trained Spotter 1 SE Hiawatha 3.75 in 0827 PM 08/10 Trained Spotter 2 SW Saint Donatus 3.74 in 1130 AM 08/10 Trained Spotter Illinois City 6.7 SW 3.62 in 0700 AM 08/11 COCORAHS Wheatland 3.39 in 0950 AM 08/11 CWOP 1 SSW Muscatine Airport 3.25 in 0720 AM 08/11 Trained Spotter Monticello 3.23 in 0600 AM 08/11 COOP Cedar Rapids 5.8 N 3.23 in 0700 AM 08/11 COCORAHS 1 NE Dundee 3.16 in 0700 AM 08/11 COCORAHS 1 W Galena 3.00 in 1147 AM 08/10 Trained Spotter Winthrop 5.6 NNE 2.99 in 0900 AM 08/11 COCORAHS Marion 2.97 in 0700 AM 08/11 COCORAHS 2 NNW Marion 2.95 in 0413 PM 08/10 Trained Spotter Quasqueton 2.90 in 0945 AM 08/11 CWOP Dubuque 1.0 SE 2.89 in 0645 AM 08/11 COCORAHS East Dubuque 1.7 SE 2.87 in 0700 AM 08/11 COCORAHS Marion 1.6 WNW 2.85 in 0700 AM 08/11 COCORAHS Marion 2.85 in 0800 AM 08/11 COCORAHS Marion 1.7 NNW 2.80 in 0615 AM 08/11 COCORAHS Dubuque 1.4 WNW 2.80 in 0700 AM 08/11 COCORAHS 1 SSE Edmore 2.75 in 0845 PM 08/10 Trained Spotter 3 NNE Cedar Rapids 2.74 in 0410 AM 08/11 Trained Spotter Charlotte 1.9 WNW 2.72 in 0700 AM 08/11 COCORAHS Hiawatha 2.70 in 1147 AM 08/10 Trained Spotter 3 NNE Cedar Rapids 2.68 in 1050 AM 08/10 Trained Spotter North Liberty 0.7 SSW 2.68 in 0800 AM 08/11 COCORAHS 3 NW Ely 2.60 in 0304 PM 08/10 Emergency Mngr Asbury 0.4 SW 2.59 in 0700 AM 08/11 COCORAHS Davenport 2.55 in 0945 AM 08/11 CWOP 3 S Coggon 2.52 in 1022 PM 08/10 Trained Spotter Manchester 2.50 in 0700 AM 08/11 COOP Central City 6.7 W 2.42 in 0700 AM 08/11 COCORAHS Holy Cross 1.8 E 2.41 in 0700 AM 08/11 COCORAHS North Liberty 1.0 ENE 2.39 in 0700 AM 08/11 COCORAHS Vinton 3.6 SE 2.37 in 0700 AM 08/11 COCORAHS 1 NW Davenport 2.34 in 0720 PM 08/10 Trained Spotter 3.9 S Dewitt 2.27 in 0930 AM 08/11 HADS Urbana 2.26 in 0945 AM 08/11 CWOP Amana 2.25 in 0950 AM 08/11 CWOP Davenport Arpt 2.18 in 0859 AM 08/11 ASOS 1 WNW Dubuque 2.16 in 0723 AM 08/11 Cocorahs Independence 2.16 in 0930 AM 08/11 CWOP Central City 2.14 in 0945 AM 08/11 CWOP Hanover 0.2 NW 2.12 in 0700 AM 08/11 COCORAHS Winthrop 2.12 in 0945 AM 08/11 CWOP Eldridge 0.7 SSW 2.06 in 0800 AM 08/11 COCORAHS 2 ENE Hazleton 2.01 in 0100 PM 08/10 CO-OP Observer Hopkinton 5.4 WSW 2.01 in 0700 AM 08/11 COCORAHS Depue 2.00 in 0307 PM 08/10 Public Stockton 5.9 WNW 2.00 in 0700 AM 08/11 COCORAHS Macnhester 2.00 in 0945 AM 08/11 CWOP
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