During the evening hours of July 10th, a line of thunderstorms developed in eastern Iowa and moved into northwest Illinois. These storms produced isolated large hail and damaging wind gusts in Carroll, Jo Daviess, Henry, Bureau, and Rock Island Counties.
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.
During the evening hours of July 10th, a line of thunderstorms developed in eastern Iowa and moved into northwest Illinois. These storms produced isolated large hail and damaging wind gusts in Carroll, Jo Daviess, Henry, Bureau, and Rock Island Counties. These storms also produced heavy rain, mainly along and north of interstate 80. Rainfall amounts of 2 to 4.50 inches were reported that produced some flash flooding Princeton and Moline.
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 10, 5:20 PM CST, 52 minutes earlier. Its key messages:
Area Forecast Discussion National Weather Service Quad Cities IA IL 620 PM CDT Thu Jul 10 2025 .KEY MESSAGES... - Multiple rounds of showers and thunderstorms are expected this afternoon through Saturday. Severe weather is possible, there is a Marginal Risk (Level 1 of 5) for today and tonight, and a Slight Risk (Level 2 of 5) for Friday. - There is a risk of heavy rainfall with any thunderstorms, especially for areas that see multiple rounds. Flash flooding of low-lying areas and urban areas may be a concern. River flooding may also become a concern. - Seasonal temperatures and humidity levels will continue into next week. A cold front may arrive later in the week. && .SHORT TERM /THROUGH FRIDAY NIGHT/... Issued at 154 PM CDT Thu Jul 10 2025 Temperatures have quickly warmed into the 80s across most of the area early this afternoon. Most climb into the upper 80s for high temperatures. With the strong heating, cumulus is beginning to develop south of a remnant mesoscale convective vortex moving across southern Minnesota and associated outflow across eastern Iowa. This may be a focus for afternoon and evening thunderstorm development. Model guidance remains uncertain, but latest satellite trends appear to show the potential for scattered thunderstorms along and north of Interstate 80 into tonight. In addition to this, a broken line of thunderstorms is expected to move in from the west after midnight, clearing the area by sunrise on Friday. A Marginal Risk (Level 1 of 5) of severe weather is forecast through tonight with damaging winds the main hazard. An isolated tornado can not be completely ruled out. Flash flooding will also be possible with a very moist environment. Very high rainfall rates in thunderstorms will support a localized flash flood threat, especially if areas receive multiple rounds of thunderstorms. Temperatures by Friday morning should cool into the upper 60s and lower 70s. A brief lull in the thunderstorm activity may be possible behind morning thunderstorms before additional thunderstorms begin to develop by the afternoon. Strong daytime heating allow temperatures to quickly climb into the upper 80s and lower 90s. Additional thunderstorms are forecast to develop across western portions of the area and along remnant outflow along and north of Interstate 80 through the afternoon and evening. Eventually these thunderstorms will slowly move eastward as one or more lines through the region. With this activity, a Slight Risk (Level 2 of 5) of thunderstorms is possible. Damaging winds remain the primary hazard, but isolated large hail or an isolated tornado can not be ruled out. Otherwise, flash flooding remains a concern, especially for areas that received rainfall Thursday or multiple rounds on Friday. River flooding may become a concern as well. At present, total rainfall through Saturday appears to remain between 1 and 2 inches with locally higher amounts near 3 or more inches possible for areas that receive multiple rounds of thunderstorms. Once again, thunderstorms begin to weaken and exit the area by Saturday morning as temperatures cool into the upper 60s and lower 70s. && .LONG TERM /SATURDAY THROUGH THURSDAY/... Issued at 154 PM CDT Thu Jul 10 2025 With the main trough expected to push east of the area by Saturday afternoon, only isolated to widely scattered thunderstorms are forecast. Temperatures will otherwise remain seasonal. Sunday will likely remain dry with overall beautiful July weather for the region. Temperatures heat up into the 90s early next week ahead of our next weather system that should bring the return of rain chances by the middle of next week. Temperatures will return to near normal before a potential cold front later in the week brings cooler temperatures to the area. Below normal temperatures in the upper 70s may be possible towards the end of the week. && .AVIATION /00Z TAFS THROUGH 00Z FRIDAY/... Issued at 617 PM CDT Thu Jul 10 2025 A round of strong to severe thunderstorms will move through all of eastern Iowa and northwest Illinois TAF sites through 02Z, with coverage of rain and thunderstorms over the north 1/2 the area continuing into the overnight hours. This heavy activity will bring strong wind gusts, possibly large hail, and very heavy rain/LIFR visibility through 01z, then decrease to intermittent MVFR/IFR in rain and some thunder through the night. Another round of storms is expected to arrive during the afternoon hours Friday. Outside of storms, expect light winds and low based cumulus/stratocumulus through the day Friday. && .DVN WATCHES/WARNINGS/ADVISORIES... IA...None. IL...None. MO...None. && SHORT TERM...NWS LONG TERM...NWS AVIATION...Ervin
Hazardous Weather Outlook National Weather Service Quad Cities IA IL 151 PM CDT Thu Jul 10 2025 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-111900- 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- 151 PM CDT Thu Jul 10 2025 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...THIS AFTERNOON AND TONIGHT There is a Marginal Risk (Level 1 of 5) for severe weather this afternoon and tonight. A few strong to severe thunderstorms are expected, especially along and north of Interstate 80. Damaging winds are the primary hazard, but an isolated tornado can not be ruled out. In addition to potential severe weather, flash flooding may also be possible. Any thunderstorms will be capable of producing very heavy rainfall. There will be a threat of flash flooding, especially for areas that receive repeated rounds of thunderstorms. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY Additional rounds of thunderstorms are expected during the afternoon on Friday through the early morning on Saturday. There is a Slight Risk (Level 2 of 5) of severe thunderstorms during this time. Damaging winds will remain the main hazard with an isolated large hail and tornado threat. Flash flooding will continue to be possible across the area, especially in areas that received rainfall Thursday or multiple rounds on Friday. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed this afternoon into tonight, especially along and north of Interstate 80. Spotter activation may also be needed across the area on Friday.
Preliminary Local Storm Report
National Weather Service Quad Cities IA IL
551 PM CDT Thu Jul 10 2025
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0535 PM Hail 2 SE Iowa City 41.64N 91.51W
07/10/2025 M0.88 Inch Johnson IA Trained Spotter
&&
TJGPreliminary Local Storm Report
National Weather Service Quad Cities IA IL
559 PM CDT Thu Jul 10 2025
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0535 PM Tstm Wnd Dmg 2 SE Iowa City 41.64N 91.51W
07/10/2025 Johnson IA Trained Spotter
There was a 6-8 inch tree trunk snapped by
thunderstorm winds.
&&
TJGPreliminary Local Storm Report
National Weather Service Quad Cities IA IL
605 PM CDT Thu Jul 10 2025
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0537 PM Hail Iowa City 41.66N 91.54W
07/10/2025 M1.00 Inch Johnson IA Trained Spotter
&&
TJGSpecial Weather Statement
National Weather Service Quad Cities IA/IL
630 PM CDT Thu Jul 10 2025
IAZ042-053-054-ILZ001-002-007-110100-
Carroll IL-Jo Daviess IL-Stephenson IL-Jackson IA-Dubuque IA-
Jones IA-
630 PM CDT Thu Jul 10 2025
...A slow-moving thunderstorm will impact portions of northern
Carroll, Jo Daviess, Stephenson, central Jackson, Dubuque and
northeastern Jones Counties through 800 PM CDT...
At 629 PM CDT, trained weather spotters reported slow-moving
thunderstorms over East Dubuque, or near Dubuque, moving east at 40
mph.
HAZARD...Minor flooding.
SOURCE...Trained weather spotters.
IMPACT...Slowing or redirecting of traffic due to ponding or flowing
water. Closure of waterfront access due to flooding.
Locations impacted include...
Dubuque, Freeport, Galena, Mount Carroll, Asbury, Dyersville, Lena,
Bellevue, Cascade, Stockton, Epworth, East Dubuque, Farley, Lanark,
Warren, Peosta, Hanover, Pearl City, Elizabeth, and Shannon.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is occurring and may lead to localized flooding.
Do not drive your vehicle through flooded roadways. Stay away from
flooded areas. Report any flooding to local law enforcement.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
If the heavy rain continues, a flash flood warning may be needed.
&&
LAT...LON 4264 9072 4251 9064 4250 8940 4220 8940
4220 8969 4209 8969 4216 9109 4230 9109
4230 9113 4265 9113 4265 9090 4268 9089
TIME...MOT...LOC 2329Z 277DEG 36KT 4245 9061
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...<30 MPH
GunkelPreliminary Local Storm Report
National Weather Service Quad Cities IA IL
650 PM CDT Thu Jul 10 2025
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0649 PM Rain 2 WNW Dubuque 42.52N 90.72W
07/10/2025 M1.75 Inch Dubuque IA Trained Spotter
One hour total.
&&
AESpecial Weather Statement
National Weather Service Quad Cities IA/IL
655 PM CDT Thu Jul 10 2025
IAZ054-066-ILZ001-007-009-110045-
Whiteside IL-Carroll IL-Jo Daviess IL-Clinton IA-Jackson IA-
655 PM CDT Thu Jul 10 2025
...Strong thunderstorms will impact portions of northwestern
Whiteside, south central Carroll, south central Jo Daviess, eastern
Clinton and southeastern Jackson Counties through 745 PM CDT...
At 655 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Maquoketa to near Camanche. Movement was
northeast at 25 mph.
HAZARD...Wind gusts up to 50 mph.
SOURCE...Radar indicated.
IMPACT...Strong winds could break small tree limbs and blow around
unsecured objects.
Locations impacted include...
Clinton, Maquoketa, Camanche, Fulton, Bellevue, Preston, Sabula,
Delmar, Miles, Andrew, Charlotte, Low Moor, Springbrook, Andover,
Spragueville, Green Island, Van Buren, Thomson, Goose Lake, and Teeds
Grove.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is occurring and may lead to localized flooding.
Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4230 9046 4198 9004 4176 9029 4205 9071
TIME...MOT...LOC 2355Z 218DEG 20KT 4206 9060 4183 9028
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH
McClureThe Quad Cities radar (KDVN), 59 km away, was scanning. The volume nearest the first event began at 00:10 UTC.
11 thunderstorm wind, 2 hail, 2 flash flood. Local standard time, as filed.
Dispatch reported multiple power poles and wires down, leading to portions of Route 84 being closed. Along the same route, reports of several farm irrigators being knocked over, as well as trees. Time estimated by radar.
A public report of a Center Pivot/Agricultural Field Sprinklers damaged on Speer Road.
A public report of a 70 foot repeater tower knocked down due to high winds.
Report of numerous power lines down, power poles snapped, and trees down across roads. This damage is widespread throughout the area.
Broadcast Media reported quarter sized hail lasting for about ten minutes.
Broadcast Media relayed a report of a lot of trees down throughout this area.
The Emergency Manager reported tree limbs down along with damaged corn between Sheffield and Manlius. The time of the event was estimated using radar.
A trained spotter reported 2 to 3 feet of water over the intersection of 18th avenue and 12th in Moline. Cars are stalled in the water.
Large tree snapped at base and over a fence post. The of time of the event was estimated using radar.
Emergency manager reported that a utility pole was snapped near Rt 26 and Progress Drive. Time of the event was estimated based on radar.
Media in Kewanee relayed a Henry County sheriffs office report of a tree down on County Highway 5 north of Highway 81. Tim of the event estimated using radar.
Emergency Manager reported trees down on Hwy 26 near the Chapel Hill golf course. The time of the event was estimated using radar.
A public report of street flooding via MPING.
Depue Fire reported trees and limbs down throughout town, some of which were blocking roadways. They also reported minor flooding. Time estimated using radar.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Illinois in 2025Every state in 2025This day in weather historyWarnings in Illinois, July 2025
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: 1281737, 1281747, 1281741, 1281735, 1281739, 1281736, 1281738, 1281745, 1281731, 1281744, 1281743, 1281742, 1281746, 1281734, 1281740.