Scattered severe thunderstorms may bring large hail and isolated damaging winds this weekend over parts of the south central U.S. Smoke from Canadian wildfires will bring air quality issues to parts of the north central U.S. this weekend. Moderate to Severe geomagnetic storm conditions will remain possible into early Monday following a strong coronal mass ejection from the sun. Read More >
Overview
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A cold front progressing across central Iowa helped produced showers and thunderstorms across much of the region this afternoon and evening. Thunderstorms became severe across southeast Iowa, west central Illinois, and northeast Missouri, and produced tornadoes, winds up to 80 MPH, hail up to golf ball size, and heavy rainfall amounts over 1 inch. Damage to trees and power lines were reported from Van Buren to Clark and Hancock counties. A damage survey team found two EF-1 tornadoes touched down north of Keosauqua in Van Buren County as storms moved through. Please see the Tornado tab below for additional details.
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 Weather Prediction Center Pressure / Fronts |
Tornado:
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Tornado #1 - 1.2 NNE Keosauqua, IA
Track Map  
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Tornado #2 - 4.9 N Keosauqua, IA
Track Map 
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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 Map | SPC Storm Reports |
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PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
916 PM CDT THU JUL 19 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0905 PM HEAVY RAIN KEOSAUQUA 40.74N 91.96W
07/19/2018 M1.10 INCH VAN BUREN IA TRAINED SPOTTER
TOTAL RAINFALL AS OF 9PM.
0834 PM HEAVY RAIN 3 W INDIAN LAKE PARK 40.64N 91.80W
07/19/2018 M2.10 INCH VAN BUREN IA TRAINED SPOTTER
STORM TOTAL SO FAR.
0818 PM HAIL 2 N KAHOKA 40.46N 91.72W
07/19/2018 E0.25 INCH CLARK MO TRAINED SPOTTER
PEA HAIL OCCURRING RIGHT NOW.
0808 PM TSTM WND DMG WYACONDA 40.39N 91.92W
07/19/2018 CLARK MO LAW ENFORCEMENT
TREE DOWN IN WYACONDA ON RTE A.
0758 PM TSTM WND GST SHANNON 42.15N 89.74W
07/19/2018 M60 MPH CARROLL IL TRAINED SPOTTER
0740 PM TSTM WND GST LANARK 42.11N 89.83W
07/19/2018 E60 MPH CARROLL IL TRAINED SPOTTER
DELAYED REPORT AND TIME ESTIMATED FROM
RADAR.
0738 PM TSTM WND DMG ALEXANDRIA 40.36N 91.46W
07/19/2018 CLARK MO LAW ENFORCEMENT
TREES DOWN.
0730 PM HAIL 1 NNW MOUNT CARROLL 42.10N 89.98W
07/19/2018 E1.00 INCH CARROLL IL TRAINED SPOTTER
0727 PM HAIL SOUTH GORIN 40.36N 92.02W
07/19/2018 M1.75 INCH SCOTLAND MO FIRE DEPT/RESCUE
REPORTED FROM GORIN FIRE DEPARTMENT.
0723 PM HAIL SOUTH GORIN 40.36N 92.02W
07/19/2018 M1.75 INCH SCOTLAND MO 911 CALL CENTER
RELAYED REPORT FROM CLARK CO., MO DISPATCH.
0719 PM HAIL KEOKUK 40.41N 91.40W
07/19/2018 M1.00 INCH LEE IA TRAINED SPOTTER
0718 PM HAIL WARSAW 40.36N 91.43W
07/19/2018 E1.00 INCH HANCOCK IL BROADCAST MEDIA
DELAYED REPORT AND TIME ESTIMATED FROM
RADAR.
0718 PM TSTM WND DMG WARSAW 40.36N 91.43W
07/19/2018 HANCOCK IL BROADCAST MEDIA
DELAYED REPORT AND TIME ESTIMATED FROM
RADAR. NUMEROUS TREES DOWN IN TOWN.
0717 PM HAIL SOUTH GORIN 40.36N 92.02W
07/19/2018 M1.00 INCH SCOTLAND MO FIRE DEPT/RESCUE
QUARTER SIZE HAIL FALLING AT THE GORIN FIRE
DEPARTMENT.
0715 PM TSTM WND DMG MOOAR 40.44N 91.45W
07/19/2018 LEE IA PUBLIC
CORRECTS PREVIOUS TSTM WND DMG REPORT FROM
MOOAR. SEVERAL TREES AND LARGE TREE BRANCHES
DOWN AT KEOKUK HIGH SCHOOL. TIME ESTIMATED
BY RADAR.
0715 PM TSTM WND GST KEOKUK AIRPORT 40.46N 91.43W
07/19/2018 M56 MPH LEE IA PUBLIC
AWOS MEASURED WIND.
0715 PM TSTM WND GST SAVANNA RIVERVIEW AIRPO 42.05N 90.11W
07/19/2018 M50 MPH CARROLL IL PUBLIC
AWOS MEASURED WIND.
0712 PM HEAVY RAIN JESUP 42.48N 92.07W
07/19/2018 M1.72 INCH BUCHANAN IA TRAINED SPOTTER
STORM TOTAL.
0710 PM HAIL 3 SSE MEMPHIS 40.42N 92.14W
07/19/2018 E1.25 INCH SCOTLAND MO TRAINED SPOTTER
DELAYED REPORT AND TIME ESTIMATED FROM
RADAR.
0658 PM HAIL MEMPHIS 40.46N 92.17W
07/19/2018 M0.88 INCH SCOTLAND MO TRAINED SPOTTER
0656 PM HAIL 3 WNW MOUNT STERLING 40.64N 91.98W
07/19/2018 E0.25 INCH VAN BUREN IA TRAINED SPOTTER
PEA HAIL AND WINDS GUSTING TO 40 MPH WITH
HEAVY RAIN OCCURRING RIGHT NOW.
0654 PM HAIL ARGYLE 40.53N 91.57W
07/19/2018 E0.88 INCH LEE IA TRAINED SPOTTER
NICKEL HAIL. NOT SURE IF IT WAS LARGER OR
NOT.
0650 PM TSTM WND GST 5 N KAHOKA 40.50N 91.72W
07/19/2018 E60 MPH CLARK MO LAW ENFORCEMENT
0650 PM TSTM WND DMG 1 NW FROST ISLAND CA 40.45N 91.57W
07/19/2018 CLARK MO EMERGENCY MNGR
REPORT OF POWER LINES DOWN WITH TREE
BRANCHES IN ST. FRANCISVILLE, MO. TIME
ESTIMATED BASED ON RADAR.
0643 PM TSTM WND DMG DONNELLSON 40.64N 91.57W
07/19/2018 LEE IA TRAINED SPOTTER
DELAYED REPORT AND TIME ESTIMATED FROM
RADAR. NUMEROUS TREES AND POWER LINES DOWN
IN TOWN.
0642 PM TSTM WND GST 3 ENE CHARLIE HEATH MEM 40.59N 91.84W
07/19/2018 E60 MPH CLARK MO TRAINED SPOTTER
0639 PM TSTM WND DMG CROTON 40.59N 91.68W
07/19/2018 LEE IA TRAINED SPOTTER
DELAYED REPORT AND TIME ESTIMATED FROM
RADAR. NUMEROUS TREES DOWN.
0638 PM HAIL 1 ESE LACEY KEOSAUQUA S 40.71N 91.96W
07/19/2018 E0.75 INCH VAN BUREN IA BROADCAST MEDIA
DIME SIZED HAIL.
0634 PM TSTM WND DMG FARMINGTON 40.64N 91.74W
07/19/2018 VAN BUREN IA BROADCAST MEDIA
DELAYED REPORT AND TIME ESTIMATED FROM
RADAR. NUMEROUS LARGE OAK TREES DOWN IN
TOWN. ROOF OF BUILDING PEELED BACK.
0634 PM TSTM WND DMG 2 N ANSON 40.60N 91.77W
07/19/2018 CLARK MO BROADCAST MEDIA
DELAYED REPORT. LARGE TREE DOWN, SEVERAL
FEET IN DIAMETER, AT MISSOURI HIGHWAY 81 AND
COUNTY V.
0630 PM TSTM WND GST 3 ENE CHARLIE HEATH MEM 40.59N 91.84W
07/19/2018 E50 MPH CLARK MO TRAINED SPOTTER
VISIBILITY 1/8 MILE IN HEAVY RAIN.
0630 PM TSTM WND DMG 3 W INDIAN LAKE PARK 40.64N 91.81W
07/19/2018 VAN BUREN IA TRAINED SPOTTER
DELAYED REPORT AND TIME ESTIMATED FROM
RADAR. THREE OUTBUILDINGS DOWN ON PROPERTY.
0609 PM TSTM WND DMG 1 NW KEOSAUQUA AIRPORT 40.75N 91.96W
07/19/2018 VAN BUREN IA EMERGENCY MNGR
DELAYED REPORT AND TIME ESTIMATED FROM
RADAR. CONSIDERABLE DAMAGE TO BUILDINGS AT
THE FAIRGROUNDS. GAS PUMPS BLOWN OVER AND A
BUILDING DAMAGED AT A COUNTY FACILITY NEXT
TO THE FAIRGROUNDS.
0510 PM TSTM WND GST 6 NW HEDRICK 41.23N 92.39W
07/19/2018 E70 MPH KEOKUK IA LAW ENFORCEMENT
AT LEAST 70 MPH.
0445 PM HAIL WYOMING 42.06N 91.00W
07/19/2018 E0.75 INCH JONES IA TRAINED SPOTTER
STONES UP TO PENNIES, WINDS TO 40 MPH.
0410 PM HAIL 3 SSW CENTER JUNCTION 42.08N 91.11W
07/19/2018 E0.88 INCH JONES IA TRAINED SPOTTER
Rain Reports
More information will be added by 10 AM Thursday, July 20th
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| Figure 1: Local 24-hr Rainfall ending 9 am 7/20 |
Figure 2: Regional Rainfall Ending 7am 7/20 |
24 hour precipitation reports (in Inches), for eastern Iowa, northwest and west central Illinois, and northeast Missouri. Reported between Midnight and 9 AM, Friday July 20, 2018. ....IOWA.... Bellevue LD12 2.50 Coggon 2.38 Anamosa 3 SSW 2.37 Mason City* 0 E 2.15 Mason City 1 NNE 2.02 Delmar 2.3 NW 1.89 Amana 4.7 W 1.88 Keosauqua 1.86 Dubuque LD11 1.85 Marengo 1.81 Peosta 2.9 E 1.78 Oskaloosa 1 NNW 1.77 Muscatine 2N 1.62 Kalona 7.3 NNW 1.61 Dubuque #3 7 SW 1.46 Ainsworth 7.4 N 1.45 Williamsburg 1.43 Monticello 1 E 1.40 Cedar Rapids 3.4 NW 1.39 Keokuk LD19 1.36 Iowa City Arpt 1.35 Waterloo ASOS 5 NW 1.35 Maquoketa 4W 1.33 Mason City ASOS 6 W 1.28 Hampton 1 N 1.27 Marion 1.7 NNW 1.24 Central City 6.7 W 1.21 Cedar Rapids 2.7 NE 1.19 Le Claire LD14 1.13 Strawberry Point 1.06 Eldridge 0.7 SSW 1.01 Iowa City 1.01 Cascade 0.98 Toledo 3 N 0.97 Tripoli 0 N 0.96 Guttenberg Dam 10 0.95 Elkader 6SSW 0.94 Le Claire 1.8 NNE 0.93 Dubuque Arpt 7 SW 0.92 North Liberty 1.0 ENE 0.89 Donnellson 0.88 Bettendorf 1.6 WSW 0.86 Park View 0.2 WSW 0.85 Lowden 0.83 Cedar Rapids Arpt 5 SW 0.79 Oskaloosa AWOS 9 ESE 0.77 Burlington 2S 0.76 Solon 0.3 ESE 0.76 Bettendorf 2.2 SE 0.75 Davenport 0.9 WNW 0.73 Fairfield 0.73 Davenport Arpt 5 N 0.70 West Point 7.5 NW 0.70 Burlington Arpt 2 SW 0.69 Davenport 0.9 SSW 0.65 Burlington 6.5 SSW 0.62 Ottumwa ASOS 6 NNW 0.62 Washington 0.57 Cresco 1 NE 0.52 Manchester 0.52 Mt Pleasant 1 SSW 0.50 Brighton 0.50 Marshalltown 1 NW 0.50 Grinnell 2 SW 0.40 Grinnell AWOS 2 SSW 0.35 Vinton 0.24 Sigourney 0.22 Salem 1S 0.21 Salem 3.1 ESE 0.17 New London 1.5 SW 0.10 Ames US 30 2 SSE 0.01 Pella 4 N 0.01 Bloomfield 1 NW 0.01 Perry 0 W 0.00 Beaconsfield 1 NNE 0.00 Centerville 0 NE 0.00 NWS Johnston* 5 NNW 0.00 Oelwein AWOS 0.00 Boone 1 SSW 0.00 Pella AWOS 2 WSW 0.00 Rathbun Reservoir 2 N 0.00 ....ILLINOIS.... Chadwick 2.7 WSW 3.62 Warsaw 5.8 SE 3.29 Elizabeth 2.64 Orangeville 2.8 NW 2.12 Galena 2.11 Winslow 4.3 ESE 2.02 Pearl City 0.4 SW 1.74 Shannon 0.2 S 1.68 Rockford ASOS 1.20 Quad City Arpt 3 S 1.19 Augusta 1.12 Coal Valley 1.9 SE 1.10 Roscoe 2SE 0.99 Quincy ASOS 0.96 Davis 0.5 N 0.95 Coleta 1.4 SSW 0.88 Bentley 0.85 Moline 0.7 NNE 0.83 Moline 0.9 N 0.81 Freeport 0.81 Morrison 3.2 E 0.80 Ill. City LD16 3 WNW 0.75 Freeport 2.0 NW 0.71 New Boston LD17 0.70 Milan 8.8 SSW 0.62 Moline 1.0 WNW 0.62 Macomb 3.8 NW 0.58 Rochelle 0.55 Geneseo 2.0 NW 0.48 Colchester 3.5 NE 0.48 Aledo 0.45 Kewanee 1 E 0.43 Dallas City 3.0 SSE 0.43 Alexis 1 SW 0.42 Altona 0.42 Rochelle AWOS 0.37 Havana 0.33 Gladstone LD18 0.27 Steward 0.25 Roseville 0.6 WNW 0.25 Galesburg 0.24 Mundelein 0.23 Galesburg Arpt 3 SW 0.23 Macomb 0.20 Peoria ASOS 0.16 Jacksonville AWOS 0.10 Tiskilwa 2.1 N 0.07 Windsor 0.06 Paw Paw 1 E 0.06 Romeoville 0.04 Princeton 1.1 SE 0.03 Princeton 0.03 Bloomington Airport 0.03 Mendota 2 SE 0.02 Lincoln NWS 0.02 Ottawa 4 SW 0.00 Decatur Airport 0.00 Ogden 0.00 Streator 3 SE 0.00 Joliet 0.00 Tuscola 0.00 ....MISSOURI.... Chillicothe 2 NW 1.89 Kahoka 0.6 S 1.52 Columbia 1.11 Memphis 0.54 Kirksville ASOS 0.50 ....WISCONSIN.... Beloit-College 1.01 Darlington 0.97 Prairie du Chien AWOS 0.96 Brodhead 1 SW 0.89 Madison-ASOS 0.79 Allenton-WWTP .6 NW 0.77 Viroqua 0.75 Delavan-1 W-WWTP 1 W 0.73 La Crosse WFO 0.28 Watertown-AWOS 0.11 ....MINNESOTA.... Preston 0.59
Photos
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Lumber yard building damage |
Tornado Damage ~5 N Keosauqua, IA (NWS Damage Survey) |
Destroyed historic stone barn ~5 N Keosauqua, IA (NWS Damage Survey) |
Uprooted tree in Donnellson due to straight-line winds (NWS Damage Survey) |
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