Overview
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Severe thunderstorms tracked southeast from northern Iowa into eastern Iowa and northwest Illinois late Saturday afternoon and evening. Torrential rain, frequent lightning, large hail up to quarters, and damaging winds were common. The strongest winds occurred in Buchanan and Delaware counties between 8pm and 11pm Saturday night. Rainfall totals over 2 inches were also reported in Buchanan, Benton, Iowa, Delaware, Linn, Johnson, and Cedar counties in Iowa, and Carroll county in Illinois. |
 WPC Surface Loop (18z 06/09 - 06z 06/10) |
Tornado:
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Tornado - 6 SE Winthrop, IA
Track Map  
Downloadable KMZ File |
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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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Storm Reports
| Interactive Storm Report Map | SPC Storm Reports |
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PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
520 AM CDT SUN JUN 10 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0151 AM HEAVY RAIN 2 N ELY 41.90N 91.58W
06/10/2018 M4.00 INCH LINN IA TRAINED SPOTTER
OVERNIGHT STORM TOTAL.
0128 AM HEAVY RAIN 2 WSW MARION 42.02N 91.63W
06/10/2018 E3.10 INCH LINN IA TRAINED SPOTTER
0107 AM HEAVY RAIN LOWDEN 41.86N 90.92W
06/10/2018 E1.52 INCH CEDAR IA CO-OP OBSERVER
1.36 INCHES FELL IN 1 HOUR AND 15 MINUTES.
1247 AM HEAVY RAIN 1 NW WILLIAMSTOWN 41.58N 91.75W
06/10/2018 M1.00 INCH JOHNSON IA TRAINED SPOTTER
1 HOUR TOTAL.
1228 AM FLASH FLOOD 2 ENE HAZLETON 42.63N 91.86W
06/10/2018 BUCHANAN IA CO-OP OBSERVER
REPORTED MULTIPLE ROADS CLOSED IN NORTHERN
BUCHANAN COUNTY.
1219 AM HEAVY RAIN MASONVILLE 42.48N 91.59W
06/10/2018 E6.00 INCH DELAWARE IA PUBLIC
PUBLIC ESTIMATED OF 6 INCHES OF RAIN IN TWO
HOURS. RELAYED BY LOCAL BROADCAST MEDIA.
1150 PM HEAVY RAIN 4 W CEDAR RAPIDS 41.98N 91.75W
06/09/2018 M2.87 INCH LINN IA PUBLIC
UPDATED AMOUNT SINCE 9:15 PM. STILL RAINING.
1138 PM HEAVY RAIN FAIRBANK 42.64N 92.06W
06/09/2018 E4.50 INCH BUCHANAN IA PUBLIC
RELAYED BY BROADCAST MEDIA.
1118 PM HEAVY RAIN 2 ENE HAZLETON 42.63N 91.86W
06/09/2018 M3.32 INCH BUCHANAN IA CO-OP OBSERVER
7 AM TO 11 PM TOTAL. ROADS IN THE AREA WERE
WASHED OUT.
1105 PM HEAVY RAIN 1 NNW MONTICELLO 42.25N 91.20W
06/09/2018 M2.00 INCH JONES IA PUBLIC
STILL RAINING.
1046 PM TSTM WND GST TODDVILLE 42.10N 91.71W
06/09/2018 E70 MPH LINN IA PUBLIC
RELAYED BY LOCAL BROADCAST MEDIA.
1029 PM FLASH FLOOD 3 S WINTHROP GOLF COURS 42.45N 91.66W
06/09/2018 BUCHANAN IA PUBLIC
GRAVEL ROADS COVERED IN RUNNING WATER.
1017 PM TSTM WND GST CEDAR RAPIDS AIRPORT 41.88N 91.71W
06/09/2018 M46 MPH LINN IA ASOS
1015 PM HAIL CENTER POINT 42.18N 91.78W
06/09/2018 E0.25 INCH LINN IA TRAINED SPOTTER
1015 PM HAIL MANCHESTER 42.48N 91.45W
06/09/2018 M0.25 INCH DELAWARE IA EMERGENCY MNGR
1003 PM HAIL 2 W CEDAR RAPIDS 41.98N 91.71W
06/09/2018 E0.25 INCH LINN IA TRAINED SPOTTER
VIA FACEBOOK.
1001 PM HEAVY RAIN 1 E INDEPENDENCE 42.47N 91.88W
06/09/2018 M3.04 INCH BUCHANAN IA PUBLIC
0950 PM TSTM WND GST WINTHROP 42.47N 91.73W
06/09/2018 M60 MPH BUCHANAN IA TRAINED SPOTTER
0948 PM FLASH FLOOD INDEPENDENCE 42.48N 91.89W
06/09/2018 BUCHANAN IA EMERGENCY MNGR
FLOODING IN LOW LYING AREAS AND ROAD
CLOSURES TAKING PLACE ON THE EAST SIDE OF
INDEPENDENCE.
0934 PM HAIL 2 NE NORWAY 41.93N 91.88W
06/09/2018 E0.50 INCH BENTON IA PUBLIC
0924 PM HAIL 1 ENE NORWAY 41.91N 91.91W
06/09/2018 M1.00 INCH BENTON IA PUBLIC
RELAYED BY BENTON COUNTY EM.
0920 PM TSTM WND GST 5 E SHELLSBURG 42.10N 91.85W
06/09/2018 E70 MPH BENTON IA PUBLIC
ESTIMATED WIND GUST OF 70 MPH AND QUARTER
HAIL,.
0920 PM TSTM WND DMG 2 S WINTHROP 42.44N 91.73W
06/09/2018 BUCHANAN IA PUBLIC
ROOF BLOWN OFF OF A HOME. RELAYED BY THE EM.
TIME ESTIMATED FROM RADAR.
0918 PM HAIL 1 NE INDEPENDENCE 42.48N 91.87W
06/09/2018 E1.00 INCH BUCHANAN IA TRAINED SPOTTER
0902 PM HAIL 1 ESE INDEPENDENCE 42.47N 91.87W
06/09/2018 E1.00 INCH BUCHANAN IA PUBLIC
0849 PM HAIL 1 E INDEPENDENCE 42.47N 91.88W
06/09/2018 E0.88 INCH BUCHANAN IA PUBLIC
MOSTLY PENNY OR SMALLER SIZED WITH SOME
NICKEL SIZED STONES.
0412 PM HEAVY RAIN 1 ESE NORA 42.45N 89.94W
06/09/2018 M1.70 INCH JO DAVIESS IL TRAINED SPOTTER
Rain Reports
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| Figure 1: Local 24-hr Rainfall |
Figure 2: Multiple-Radar/ Multiple-Sensor Estimated Rainfall Ending 8 am 06/10/18 |
Figure 3: Regional 24-hr Rainfall |
24 hour precipitation reports (in Inches), for eastern Iowa, northwest and west central Illinois, and northeast Missouri. Reported between Midnight and 9 AM, Sunday June 10, 2018. ....IOWA.... Quasqueton 0.5 W 4.09 Tripoli 0 N 3.70 Cresco 1 NE 3.37 Iowa City Arpt 3.32 Stanley 3.32 Cedar Rapids 2.7 NE 2.97 Cedar Rapids Arpt 5 SW 2.77 Mason City 1 NNE 2.72 Swisher 0.4 NNE 2.47 Cascade 2.19 Mason City ASOS 6 W 2.17 Vinton 2.17 Marion 1.7 NNW 2.04 Waterloo ASOS 5 NW 2.02 Center Point 0.6 NNW 1.98 Bellevue 0.3 SSW 1.95 Coggon 1.89 Peosta 2.9 E 1.75 Bellevue LD12 1.64 Guttenberg Dam 10 1.60 Dubuque #3 7 SW 1.51 Anamosa 3 SSW 1.46 Davenport 0.9 WNW 1.43 Dubuque Arpt 7 SW 1.39 Lowden 1.38 Davenport 0.9 SSW 1.37 Amana 4.7 W 1.33 Strawberry Point 1.26 Davenport Arpt 5 N 1.21 Calamus 2.0 NE 1.19 Central City 6.7 W 1.08 Dubuque LD11 1.07 Muscatine 2N 1.02 Maquoketa 4W 1.02 De Witt 0.96 Eldridge 0.7 SSW 0.96 Solon 0.3 ESE 0.92 Camanche 1.2 W 0.90 Belle Plaine 0.90 Bettendorf 2.2 SE 0.84 Park View 0.2 WSW 0.81 Lost Nation 0.3 S 0.77 Washington 0.76 North Liberty 1.0 ENE 0.71 Le Claire 1.8 NNE 0.67 Toledo 3 N 0.65 Brighton 0.57 Oelwein AWOS 0.56 Burlington Arpt 2 SW 0.53 Delmar 2.3 NW 0.48 Ainsworth 7.4 N 0.32 Fairfield 0.28 Williamsburg 0.20 Marshalltown 1 NW 0.15 Keokuk LD19 0.14 Marshalltown ASOS 4 N 0.03 Salem 1S 0.01 Burlington 6.5 SSW 0.01 Donnellson 0.00 Rathbun Reservoir 2 N 0.00 Beaconsfield 1 NNE 0.00 Oskaloosa AWOS 9 ESE 0.00 Ottumwa ASOS 6 NNW 0.00 Centerville 0 NE 0.00 NWS Johnston* 5 NNW 0.00 Albia 3 NNE 0.00 Allerton 2 S 0.00 Boone 1 SSW 0.00 Pella AWOS 2 WSW 0.00 Perry 0 W 0.00 Keosauqua 0.00 Newton 1 NE 0.00 Grinnell AWOS 2 SSW 0.00 ....ILLINOIS.... Ottawa 4 SW 2.91 Mendota 2 SE 2.78 Steward 2.16 Paw Paw 1 E 2.03 Galena 2.00 Mount Carroll 6.8 NNW 1.99 Elizabeth 1.96 Shannon 0.2 S 1.87 Streator 3 SE 1.74 Rockford ASOS 1.68 Freeport 2.0 NW 1.37 Tiskilwa 2.1 N 1.30 Bloomington Airport 1.29 Freeport 1.26 Aledo 1.20 Romeoville 1.20 St Anne 1.20 Augusta 1.19 Orangeville 2.8 NW 1.17 Morrison 3.2 E 1.15 Winslow 4.3 ESE 1.13 New Windsor 2.0 N 1.05 Quad City Arpt 3 S 1.03 Ill. City LD16 3 WNW 0.99 Princeton 1.1 SE 0.94 Davis 0.5 N 0.94 Princeton 0.94 Coal Valley 1.9 SE 0.93 Joliet 0.92 Princeton 1.5 S 0.78 Bentley 0.76 Walnut 5.3 ENE 0.76 Roscoe 2SE 0.59 Macomb 0.57 Alexis 1 SW 0.53 Mundelein 0.48 Peoria ASOS 0.39 Galesburg Arpt 3 SW 0.27 Colchester 3.5 NE 0.26 La Harpe 0.16 New Boston LD17 0.15 Decatur Airport 0.13 Jacksonville AWOS 0.08 Lincoln NWS 0.07 Nauvoo 0.7 SSE 0.00 Rochelle AWOS 0.00 Quincy Dam 21 0.00 Quincy ASOS 0.00 ....MISSOURI.... Kirksville ASOS 0.00 Chillicothe 2 NW 0.00 Memphis 0.00 Canton LD20 0.00 Columbia 0.00 ....WISCONSIN.... Steuben 4SE 3 NE 2.61 Prairie du Chien AWOS 1.93 La Crosse WFO 1.34 Monroe 1 W 1.32 Viroqua 1.10 Brodhead 1 SW 1.05 Madison-ASOS 0.99 Darlington 0.90 Beloit-College 0.73 Whitewater 0.69 Delavan-1 W-WWTP 1 W 0.65 Watertown-AWOS 0.14 ....MINNESOTA.... Preston 2.50 Theilman 1SSW 0.61
Environment
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| DVN 6/9 12z Sounding | DVN 6/10 00z Sounding | Supercell Composite Parameter 6/10 00z |
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| SBCAPE/SBCIN 6/10 00z | Effective Shear 6/10 00z | Precipitable Water 6/10 00z |
SPC Outlooks
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| Figure 1: SPC 1630z Day 1 Outlook | Figure 2: SPC 1630z Day 1 Tornado Outlook | Figure 3: SPC 1630z Day 1 Wind Outlook | Figure 4: SPC 1630z Day 1 Hail Outlook |
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