Overview
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A few supercell thunderstorms developed ahead of a warm front advancing into the forecast area, where they produced gusty winds, heavy rain, and hail up to 3 inches in diameter. Storms initially developed as more discrete supercells early in the evening, with the storm that went through Burlington being one of the more intense storms. Rainfall amounts reached 2 inches or more in some areas, as the anomalously moist environment favored excessive rainfall that can lead to flash flooding. Luckily, we have not received any flash flood reports, but the La Moine River near Colmar has raised to Minor Flood stage due to the recent rains. |
 Large Hail 4 Miles South of LaHarpe (sent to Jesse Risley from viewer) |
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1139 AM CDT SAT JUL 10 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0806 PM HAIL 3 SSW BLANDINSVILLE 40.52N 90.89W
07/09/2021 E1.00 INCH MCDONOUGH IL PUBLIC
REPORT FROM MPING: QUARTER (1.00 IN.).
0806 PM HAIL 4 E FOUNTAIN GREEN 40.49N 90.89W
07/09/2021 E1.00 INCH MCDONOUGH IL PUBLIC
MPING REPORT.
0734 PM TSTM WND DMG DALLAS CITY 40.64N 91.17W
07/09/2021 HANCOCK IL PUBLIC
DOWNED TREE BRANCHES.
0735 PM HAIL 3 SE DALLAS CITY 40.60N 91.12W
07/09/2021 M1.00 INCH HANCOCK IL TRAINED SPOTTER
0753 PM HAIL 2 N FOUNTAIN GREEN 40.51N 90.97W
07/09/2021 E3.00 INCH HANCOCK IL PUBLIC
BROADCAST MEDIA RELAYED A REPORT OF 3.0 INCH
HAIL 2 MILES NORTH OF FOUNTAIN GREEN. CROPS
WERE DESTROYED WITH DAMAGE TO A BUILDING.
TIME WAS ESTIMATED USING RADAR.
0806 PM HAIL 3 ENE BENTLEY 40.36N 91.05W
07/09/2021 E1.25 INCH HANCOCK IL TRAINED SPOTTER
LASTED OVER 2 MINUTES.
0816 PM HAIL 1 N PLYMOUTH 40.30N 90.92W
07/09/2021 M2.50 INCH HANCOCK IL TRAINED SPOTTER
GOLF BALL TO TENNIS BALL SIZE HAIL.
0820 PM HAIL PLYMOUTH 40.29N 90.92W
07/09/2021 M1.75 INCH HANCOCK IL TRAINED SPOTTER
QUARTER TO GOLF BALL SIZE HAIL.
0820 PM TSTM WND DMG PLYMOUTH 40.29N 90.92W
07/09/2021 HANCOCK IL TRAINED SPOTTER
BRANCHES DOWN...ESTIMATED 6 INCHES IN
DIAMETER.
0823 PM HAIL AUGUSTA 40.23N 90.95W
07/09/2021 M1.00 INCH HANCOCK IL TRAINED SPOTTER
HEAVY RAIN TOO.
0556 PM HAIL 1 W WASHINGTON 41.30N 91.70W
07/09/2021 E0.75 INCH WASHINGTON IA PUBLIC
REPORT FROM MPING: DIME (0.75 IN.).
0854 PM HAIL DONNELLSON 40.64N 91.56W
07/09/2021 E1.00 INCH LEE IA PUBLIC
0918 PM TSTM WND DMG 1 SE KEOKUK 40.40N 91.40W
07/09/2021 LEE IA TRAINED SPOTTER
CORRECTS PREVIOUS TSTM WND DMG REPORT FROM 1
SE KEOKUK. TREE DOWN NEAR 16TH ST AND TIMEA
ST. SEVERAL 6 TO 10 INCH DIAMETER BRANCHES
DOWN IN TOWN.
0700 PM HEAVY RAIN IOWA CITY MUNICIPALITY 41.63N 91.55W
07/09/2021 M1.19 INCH JOHNSON IA ASOS
1 HOUR RAINFALL TOTAL. ASOS STATION KIOW
IOWA CITY ARPT.
0730 PM HEAVY RAIN 2 SE IOWA CITY 41.64N 91.51W
07/09/2021 M1.10 INCH JOHNSON IA TRAINED SPOTTER
RAINFALL OVER THE PAST HOUR.
0513 PM HAIL 1 SW WILLIAMSBURG 41.66N 92.02W
07/09/2021 M0.70 INCH IOWA IA TRAINED SPOTTER
MODERATE RAIN AND DIME SIZED HAIL.
0613 PM HAIL SWEDESBURG 41.10N 91.54W
07/09/2021 M1.75 INCH HENRY IA TRAINED SPOTTER
GOLF BALL HAIL ON 218 NEAR SWEDESBURG. HEAVY
RAIN WITH NEAR ZERO VISIBILITY.
0630 PM HAIL 4 WSW MOUNT UNION 41.03N 91.45W
07/09/2021 M0.70 INCH HENRY IA TRAINED SPOTTER
A FEW DIME SIZED HAIL STONES AND HEAVY RAIN.
TIME ESTIMATED.
0631 PM HAIL MOUNT UNION 41.06N 91.39W
07/09/2021 M1.50 INCH HENRY IA TRAINED SPOTTER
0651 PM HAIL 1 SE NEW LONDON 40.92N 91.39W
07/09/2021 M1.00 INCH HENRY IA TRAINED SPOTTER
DIME TO QUARTER SIZED HAIL.
0651 PM HAIL 1 ESE NEW LONDON 40.92N 91.40W
07/09/2021 M0.88 INCH HENRY IA TRAINED SPOTTER
NICKEL SIZED HAIL FOR ABOUT 2 MINUTES ENDING
AROUND 653 PM.
0925 PM HEAVY RAIN 1 S MOUNT PLEASANT MUNI 40.93N 91.51W
07/09/2021 M0.96 INCH HENRY IA PUBLIC
0947 AM HEAVY RAIN 1 ESE NEW LONDON 40.92N 91.40W
07/10/2021 M1.51 INCH HENRY IA TRAINED SPOTTER
24 HOUR TOTAL.
0719 PM HAIL 1 E WEST BURLINGTON 40.82N 91.16W
07/09/2021 M1.00 INCH DES MOINES IA TRAINED SPOTTER
0720 PM HAIL 2 WSW SPRING GROVE 40.73N 91.19W
07/09/2021 M1.50 INCH DES MOINES IA TRAINED SPOTTER
0722 PM HAIL 1 WSW BURLINGTON 40.80N 91.14W
07/09/2021 M1.75 INCH DES MOINES IA TRAINED SPOTTER
0724 PM HAIL 1 SSE BURLINGTON 40.80N 91.12W
07/09/2021 M1.50 INCH DES MOINES IA TRAINED SPOTTER
0728 PM HAIL 1 ESE BURLINGTON REGION 40.78N 91.12W
07/09/2021 E2.50 INCH DES MOINES IA PUBLIC
REPORT FROM MPING: TENNIS BALL (2.50 IN.).
0730 PM HAIL 1 ENE BURLINGTON REGION 40.79N 91.11W
07/09/2021 U1.50 INCH DES MOINES IA PUBLIC
REPORT FROM MPING: PING PONG BALL (1.50
IN.).
Rain Reports
Will be available after 10 AM 7/10.
24 hour precipitation reports (in Inches), for eastern Iowa, northwest and west central Illinois, and northeast Missouri. Reported between 6 AM and 9 AM, Saturday July 10, 2021. ....IOWA.... Allerton 2 S 2.27 Parnell 0.1 SSW 2.06 Beaconsfield 1 NNE 1.94 Salem 1S 1.85 Iowa City Arpt 1.80 New London 1.5 SW 1.78 NWS Johnston* 5 NNW 1.67 Burlington 0.8 SSE 1.51 Ottumwa ASOS 6 NNW 1.46 Fairfield 1.46 Burlington Arpt 1.42 Rathbun Reservoir 2 N 1.40 Oskaloosa AWOS 9 ESE 1.36 Donnellson 1.35 Centerville 0 NE 1.28 Iowa City 1.25 Washington 1.24 Washington 5.8 SW 1.13 Mason City 1 NNE 1.08 Amana 4.7 W 1.06 West Liberty 0.7 NNW 1.04 Coralville 1.3 SE 1.00 Fort Madison 0.9 NE 1.00 Mt Pleasant 1 SSW 0.99 Keokuk LD19 0.97 Wellman 4.0 E 0.95 Ames US 30 2 SSE 0.93 Newton 1 NE 0.93 Boone 1 SSW 0.87 Muscatine 2.1 N 0.77 Wapello 5.4 SE 0.72 Marengo 3.6 N 0.63 West Branch 2.0 NNW 0.58 Toledo 3 N 0.57 Muscatine 2N 0.55 Grinnell AWOS 2 SSW 0.53 Morning Sun 1.7 E 0.50 Solon 0.3 ESE 0.36 Cedar Rapids Arpt 0.33 Tripoli 0 N 0.30 Ely 0.5 SE 0.28 Davenport 0.9 WNW 0.28 Davenport 2.9 W 0.27 Marshalltown 1 NW 0.27 Independence 1.2 N 0.27 Fayette 1 NW 0.25 Riverdale 0.5 N 0.25 Marshalltown ASOS 4 N 0.25 Davenport Arpt 0.24 Eldridge 0.6 S 0.24 Strawberry Point 0.23 Fairfax 4.0 NW 0.22 Le Claire 1.8 NNE 0.21 Park View 0.2 WSW 0.20 Guttenberg Dam 10 0.20 Oelwein AWOS 0.19 Mount Vernon 0.7 ENE 0.17 Calamus 2.0 NE 0.17 Elkader 6SSW 0.15 De Witt 0.15 Peosta 2.9 E 0.15 Mason City ASOS 6 W 0.14 Cedar Rapids 2.7 NE 0.12 Anamosa 3 SSW 0.12 Center Point 0.6 NNW 0.12 Central City 6.7 W 0.11 Winthrop 5.6 NNE 0.11 Camanche 1.2 W 0.10 Cedar Rapids 5.2 NNE 0.10 Rickardsville 0.2 W 0.10 Marion 1.7 NNW 0.10 Maquoketa 0.04 Pella AWOS 2 WSW 0.04 Dubuque #3 7 SW 0.04 Charlotte 1.9 WNW 0.03 Dubuque Arpt 0.03 Waterloo ASOS 5 NW 0.03 Bellevue LD12 0.02 Hampton 1 N 0.02 ....ILLINOIS.... Augusta 1.84 Stronghurst 0.4 SSW 1.38 Dallas City 3.0 SSE 1.37 La Harpe 1.28 Gladstone LD18 1.22 Prairie City 2S 0.93 Colchester 3.5 NE 0.60 Oquawka 0.5 N 0.55 Aledo 0.51 Macomb 3.8 NW 0.45 New Boston LD17 0.44 Macomb 0.44 Galesburg 0.40 Quincy ASOS 0.32 Moline 0.7 NNE 0.27 Atkinson 2.6 NNE 0.27 Geneseo 2.0 NW 0.26 Coal Valley 1.9 SE 0.25 Coal Valley 2.6 E 0.25 Quad City Arpt 0.21 Galva 2.7 NE 0.21 Kewanee 1 E 0.19 New Windsor 2.0 N 0.17 Alpha 2.3 N 0.15 Princeton 1.1 SE 0.13 Princeton 0.13 Altona 0.13 Jacksonville AWOS 0.10 Decatur Airport 0.09 Lincoln NWS 0.08 Morrison 5.9 SSW 0.07 Davis 0.5 N 0.05 Tuscola 0.05 Walnut 5.3 ENE 0.05 Peoria ASOS 0.04 Minonk 0.04 Streator 3 SE 0.03 Steward 0.02 Coleta 1.4 SSW 0.02 Freeport 2.0 NW 0.01 Mount Carroll 6.8 NNW 0.01 Joliet 0.01 Bloomington Airport 0.01 Romeoville 0.00 Ogden 0.00 Freeport 2.9 WSW 0.00 Freeport 1.7 NW 0.00 Rockford ASOS 0.00 Mundelein 0.00 Rochelle AWOS 0.00 Paw Paw 1 E 0.00 Freeport 0.00 St Anne 0.00 Winslow 4.3 ESE 0.00 ....MISSOURI.... Kirksville ASOS 3.59 Columbia 1.58 Chillicothe 2 NW 0.90 Memphis 0.61 ....WISCONSIN.... Prairie du Chien AWOS 0.03 Brodhead 1 SW 0.02 Darlington 0.00 Watertown-AWOS 0.00 La Crosse WFO 0.00 Viroqua 0.00 Madison-ASOS 0.00 Sullivan-NWS 2 SE 0.00 Whitewater 0.00 ....MINNESOTA.... Preston 0.02 Theilman 1SSW 0.00
SPC Graphics
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| 20Z Day 1 Outlook | MCD #1217 | Severe Thunderstorm Watch #358 |
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| Day 1 Prob Tornado | Day 1 Prob Hail | Day 1 Prob Wind |
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