A cold front produced late afternoon thunderstorms with a couple of brief Tornadoes spotted just before sunset.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS DVN wrote it up.
A cold front produced late afternoon thunderstorms with a couple of brief Tornadoes spotted just before sunset.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Quad Cities, IA wrote its last area forecast discussion before the first event at Jul 17, 5:31 PM CST, 1 hour 47 minutes earlier.
Area Forecast Discussion National Weather Service Quad Cities IA IL 631 PM CDT SUN JUL 17 2016 ...AVIATION UPDATE... .SYNOPSIS... Issued at 330 PM CDT Sun Jul 17 2016 The latest SFC analysis was indicating a cool front extending from north of the MN arrowhead, southwestward acrs far NW IA and into the west central plains. A pre-frontal trof was noted ahead of this feature acrs central IA, and lingering outflow boundary from this morning's convective system was wavering along the IA/MO border into central IL. Aloft, a vort max/upper wave was noted rolling east- northeast acrs northeastern KS. && .SHORT TERM...(This Evening and Tonight) ISSUED AT 330 PM CDT Sun Jul 17 2016 Tonight...Lingering convective debris was continuing to put a damper on storm activity acrs the CWA this afternoon, but recovering low level southerly flow is already evident with some recharge in the southern CWA ongoing. This factor along with the approaching wave out of KS and expected re-invigoration of southwesterly LLJ, expect more thunderstorm development on and to the north of debris boundaries acrs the southern CWA this evening and into the overnight. Will have to watch the convective activity currently acrs southeastern Neb and far NW MO as it pushes eastward for increasing development by mid evening and later as it moves into the south half of the DVN CWA. Thus highest coverage tonight expected along and south of I80, with secondary elevated showers and some storms to the north of I80 to maybe the highway 30 corridor. Several of the latest CAM runs keep areas north of Hwy 30 dry, and just sporadic showers/storms along and just north of I80 overnight. Withe the shear still expected, lingering severe storm chance tonight south of I80 for large hail and damaging wind bursts. Slightly elevated high THTA-E feed into the southern CWA with juiced PWATs over 2 inches also continues to support a heavy rain threat and localized flash flooding potential where the storms occur and possibly train along the boundary/boundaries. Will adjust POP coverage accordingly with the latest thinking. Low temps generally in the upper 60s to around 70. .LONG TERM...(Monday through next Sunday) ISSUED AT 330 PM CDT Sun Jul 17 2016 Monday and Tuesday...Some lingering showers possible in the south Mon morning in the vcnty of the boundary, but MCS generation parameters look to come together Mon evening and night acrs the MO RVR Valley and eastward into central IA. Potential of some of this propagating eastward into the western CWA or more later Mon night into Tue morning. Will play it rather conservatively for now with high temps both Mon and Tues with expected convective/cloud debris spilling in from the west. Latest 12z run medium range models start to amplify the upper ridge and building heat dome up the plains and MO RVR Valley by Tue night, but still some chance fro nocturnal storm clusters to form on it's nose and spill down acrs portions of the local area/especially the north half late Tue night into wed morning. Wednesday through Friday...Wed still some chance for ridge riding storm clusters to impact portions of the fcst area, with a transition into the eastern flank of the upper ridge and building heat dome by Thu. Although we may be free temporarily of much of any storm chances for the end of the week, the trade off will be the heat and humidity. Progged thermal and mixing profiles by both the GFS and ECMWF still support highs in the mid to upper 90s for both Thu and Fri if we finally get under the upper ridge and remain cloud/ precip free. Heat index readings likely from 100 to near 110 degrees if sfc DPTs can make it into the mid to upper 70s. Next Saturday and Sunday...The storm track acrs the north(Dakotas to the GRT LKS) will look to try and pummel it's way southward and the area may again be susceptible to storm systems, especially at night and in the northern CWA. Still looks hot but with more clouds and some moderation not quite as hot as Thu and Fri, especially by next Sunday. ..12.. && .AVIATION...(For the 00Z TAFS through 00Z Monday Evening) ISSUED AT 612 PM CDT Sun Jul 17 2016 Thunderstorms expected again overnight, mainly along and south of the Interstate 80 corridor. Highest coverage expected in vicinity of KBRL, with lesser chances at KCID and KMLI. Storms are doubtful at KDBQ. There will be some strong wind potential near KBRL but will handle with short term amendments. && .HYDROLOGY... Issued at 330 PM CDT Sun Jul 17 2016 Heavy rain upstream will look to be routed down portions of the Cedar River especially late in the upcoming week. Current projections suggest the Cedar River may get to near flood at Conesville, near action stage at Cedar Rapids and Wapello either next Friday or next Weekend. Will assess trends over the next few days along with attenuation, as well as additional rainfall potential Mon thru Wed. && .DVN Watches/Warnings/Advisories... IA...None. IL...None. MO...None. && SYNOPSIS...12 SHORT TERM...12 LONG TERM...12 AVIATION...RP Kinney HYDROLOGY...12
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE QUAD CITIES IA IL 816 PM CDT SUN JUL 17 2016 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-190130- BUCHANAN-DELAWARE-DUBUQUE-BENTON-LINN-JONES-JACKSON-IOWA-JOHNSON- CEDAR-CLINTON-MUSCATINE-SCOTT-KEOKUK-WASHINGTON-LOUISA-JEFFERSON- HENRY IA-DES MOINES-VAN BUREN-LEE-JO DAVIESS-STEPHENSON-CARROLL- WHITESIDE-ROCK ISLAND-HENRY IL-BUREAU-PUTNAM-MERCER-HENDERSON- WARREN-HANCOCK-MCDONOUGH-SCOTLAND-CLARK- 816 PM CDT SUN JUL 17 2016 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL ILLINOIS...NORTHWEST ILLINOIS...WEST CENTRAL ILLINOIS...EAST CENTRAL IOWA...NORTHEAST IOWA...SOUTHEAST IOWA AND NORTHEAST MISSOURI. .DAY ONE...TONIGHT THUNDERSTORMS WILL CONTINUE TO DEVELOP AND AFFECT PORTIONS OF THE OUTLOOK AREA THIS EVENING INTO THE OVERNIGHT HOURS. THUNDERSTORMS WILL BE MOST LIKELY ALONG AND SOUTH OF INTERSTATE 80. THE MAIN THREATS WILL BE DAMAGING WINDS AND HEAVY RAIN...ALTHOUGH SOME HAIL IS POSSIBLE WITH THE STRONGEST STORMS. THE STORM PREDICTION CENTER HAS PLACED A SLIGHT RISK OVER THE OUTLOOK AREA ROUGHLY SOUTH OF INTERSTATE 80. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY MONDAY THROUGH WEDNESDAY...THERE IS A DAILY CHANCE OF THUNDERSTORMS. IT IS TOO EARLY TO DETERMINE ANY SEVERE THREAT WITH THESE STORMS. HOT AND HUMID WEATHER IS LIKELY MID TO LATE WEEK. HEAT INDEX VALUES ARE EXPECTED TO BE IN THE 90S TO NEAR 100 DEGREES ON WEDNESDAY...AND AT OR ABOVE 100 DEGREES THURSDAY AND FRIDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED TONIGHT...MAINLY SOUTH OF INTERSTATE 80. RP KINNEY/DLS
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
315 PM CDT SUN JUL 17 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0703 AM TORNADO 1 SW ANDREW 42.15N 90.60W
07/17/2016 JACKSON IA NWS STORM SURVEY
EF-1 TORNADO CROSSED THE SOUTHERN PARTS OF THE TOWN OF
ANDREW. A BUILDING AT THE AG COOP WAS DESTROYED AND
NUMEROUS TREES WERE SNAPPED.
0725 AM TORNADO 2 S PARK VIEW 41.66N 90.54W
07/17/2016 SCOTT IA NWS STORM SURVEY
BRIEF EF-0 TORNADO DID DAMAGE TO TREES AND CORN CROPS.
&&
GROSSPRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
319 PM CDT SUN JUL 17 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0603 AM TORNADO 1 SW ANDREW 42.15N 90.60W
07/17/2016 JACKSON IA NWS STORM SURVEY
EF-1 TORNADO CROSSED THE SOUTHERN PARTS OF THE TOWN OF
ANDREW. A BUILDING AT THE AG COOP WAS DESTROYED AND
NUMEROUS TREES WERE SNAPPED.
0625 AM TORNADO 2 S PARK VIEW 41.66N 90.54W
07/17/2016 SCOTT IA NWS STORM SURVEY
BRIEF EF-0 TORNADO DID DAMAGE TO TREES AND CORN CROPS.
&&
GROSSPRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
324 PM CDT SUN JUL 17 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0449 AM TSTM WND DMG NW JESUP 42.48N 92.07W
07/17/2016 BUCHANAN IA BROADCAST MEDIA
GRAIN BIN DESTROYED AND BLOWN INTO ANOTHER STRUCTURE. THE
GRAIN BIN WAS EMPTY
0454 AM TSTM WND DMG NE JESUP 42.48N 92.07W
07/17/2016 BUCHANAN IA FIRE DEPT/RESCUE
GRAIN BIN DESTROYED WITH ANOTHER WITH THE SIDE PUSHED IN
BY THE WIND.
0455 AM TSTM WND DMG S VINTON 42.16N 92.03W
07/17/2016 BENTON IA EMERGENCY MNGR
ROOF BLOWN OFF A LARGE APARTMENT BUILDING AND A HOUSE
DAMAGED. TIME ESTIMATED FROM RADAR.
0455 AM TSTM WND GST 1 N INDEPENDENCE 42.49N 91.89W
07/17/2016 E75.00 MPH BUCHANAN IA TRAINED SPOTTER
ESTIMATED WINDS OF 70 TO 75 MPH BASED ON THE MOVEMENT OF
THE TREES. NO DAMAGE WAS VISIBLE AT THE TIME OF THE
REPORT.
0510 AM TSTM WND DMG 2 E PALO 42.06N 91.76W
07/17/2016 LINN IA TRAINED SPOTTER
REPORT WAS DELAYED....SPOTTER OBSERVED POWER FLAHES
AROUND 510 AND THIS MORNING THERE WERE POWER LINES DOWN
IN THE AREA WITH THE POWER OUT.
0515 AM TSTM WND GST W CEDAR RAPIDS 41.97N 91.67W
07/17/2016 M61.00 MPH LINN IA BROADCAST MEDIA
KCRG EQUIPMENT MEASUREMENT AT XAVIER HIGH SCHOOL ON THE
WEST SIDE OF CEDAR RAPIDS. TIME OF THE EVENT IS ESTIMATED
SINCE EXACT TIME IS UNKNOWN.
0525 AM TSTM WND GST 1 SSE CEDAR RAPIDS 41.95N 91.66W
07/17/2016 E55.00 MPH LINN IA TRAINED SPOTTER
50 TO 55 MPH GUSTS.
0530 AM HAIL SWISHER 41.84N 91.70W
07/17/2016 M0.25 INCH JOHNSON IA TRAINED SPOTTER
0546 AM TSTM WND DMG WALFORD 41.88N 91.84W
07/17/2016 BENTON IA TRAINED SPOTTER
MULTIPLE HOMES DAMAGE IN WALFORD WITH ONE COLLAPSED.
0602 AM TSTM WND DMG MAQUOKETA 42.07N 90.67W
07/17/2016 JACKSON IA EMERGENCY MNGR
A COUPLE OF TREES WERE UPROOTED IN TOWN. TIME OF THE
EVENT ESTIMATED USING RADAR.
0603 AM TORNADO 1 SW ANDREW 42.15N 90.60W
07/17/2016 JACKSON IA NWS STORM SURVEY
EF-1 TORNADO CROSSED THE SOUTHERN PARTS OF THE TOWN OF
ANDREW. A BUILDING AT THE AG COOP WAS DESTROYED AND
NUMEROUS TREES WERE SNAPPED.
0622 AM TSTM WND GST PARK VIEW 41.69N 90.54W
07/17/2016 E60.00 MPH SCOTT IA NWS EMPLOYEE
0622 AM TSTM WND DMG 4 S DEWITT 41.76N 90.55W
07/17/2016 SCOTT IA CO-OP OBSERVER
MULBERRY TREE BLOWN OVER, NUMEROUS OTHER LIMBS DOWN
0622 AM TSTM WND DMG PARK VIEW 41.69N 90.54W
07/17/2016 SCOTT IA NWS EMPLOYEE
TREE BRANCHES DOWN...SOME 2 TO 6 INCHES IN DIAMETER. TIME
ESTIMATED FROM RADAR.
0623 AM TSTM WND DMG 1 S ANDREW 42.14N 90.59W
07/17/2016 JACKSON IA LAW ENFORCEMENT
LAW ENFORCEMENT REPORTED SIGNIFICANT DAMAGE TO A BUILDING
WITH NEARBY TREES TWISTED AND SOME FARM EQUIPMENT KNOCKED
OVER.
0623 AM TSTM WND DMG DEWITT 41.82N 90.55W
07/17/2016 CLINTON IA LAW ENFORCEMENT
LAW ENFORCEMENT REPORTED SEVERAL TREES DOWN IN DEWITT.
0625 AM TORNADO 2 S PARK VIEW 41.66N 90.54W
07/17/2016 SCOTT IA NWS STORM SURVEY
BRIEF EF-0 TORNADO DID DAMAGE TO TREES AND CORN CROPS.
0625 AM TSTM WND DMG 2 ESE LONG GROVE 41.68N 90.55W
07/17/2016 SCOTT IA PUBLIC
NEAR FARM ALONG OLD 61 BETWEEN PARKVIEW AND
ELDERIGE....TOPS OF TREES TWISTED OFF AND CORN LAYING
DOWN IN NEIGHBORING FIELD WITH SOME OF THE CORN RIPPED
OUT.
0625 AM TSTM WND DMG LONG GROVE 41.69N 90.58W
07/17/2016 SCOTT IA NWS EMPLOYEE
3 INCH LIMB DOWN IN A DRIVEWAY
0625 AM TSTM WND DMG 1 SSE DAVENPORT 41.54N 90.60W
07/17/2016 SCOTT IA TRAINED SPOTTER
TREE BRACNCHES DOWN ALONG THE 2200 BLOCK OF NORTH
WASHINGTON STREET IN DAVENPORT. BRANCHES SNAPPED OFF
TREES AND PARTIALLY IN THE STREET. NO DAMAGE TO
STRUCTURES. TIME ESTIMATED USING RADAR.
0630 AM TSTM WND DMG ELDRIDGE 41.64N 90.57W
07/17/2016 SCOTT IA NWS EMPLOYEE
4 TO 6 INCH DIAMETER BRANCHES BROKEN OFF AN BLOWN 100 TO
200 YARDS. TREE WAS ALONG U.S. 61 NORTH OF LE CLAIRE ROAD
EAST OF ELDRIDGE. TIME ESTIMATED FROM RADAR.
0635 AM TSTM WND DMG 3 WSW BETTENDORF 41.55N 90.54W
07/17/2016 SCOTT IA NWS EMPLOYEE
TREE UPROOTED AND CROWN SNAPPED ALONG WITH A 6 INCH
DIAMETER BRANCHES DOWN. TIME ESTIMATED USING RADAR.
&&
GROSSPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
436 PM CDT SUN JUL 17 2016
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0625 AM TSTM WND DMG DEWITT 41.82N 90.55W
07/17/2016 CLINTON IA EMERGENCY MNGR
NUMEROUS TREES DOWN ON SE SIDE OF TOWN. SOME TREES FELL
ON ROOFS OF HOUSES.
&&
GROSSThe Quad Cities radar (KDVN), 112 km away, was scanning. The volume nearest the first event began at 01:19 UTC.
2 tornado. Local standard time, as filed.
The local fire chief reported a brief touchdown with no significant damage. The time was estimated by radar.
Local law enforcement reported a brief touchdown. Most of the time it was a funnel going up and down from the cloud base.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Illinois in 2016Every state in 2016This day in weather historyThe tornado archive for Illinois, 2016Warnings in Illinois, July 2016
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 653454, 653455.