A strong storm moved through Dubuque county, with heavy rain, and small hail ranging from pea to penny size on the 22nd of September, 2025.
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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 strong storm moved through Dubuque county, with heavy rain, and small hail ranging from pea to penny size on the 22nd of September, 2025.
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 Sep 22, 5:26 PM CST, 2 hours 39 minutes earlier. Its key messages:
Area Forecast Discussion National Weather Service Quad Cities IA IL 626 PM CDT Mon Sep 22 2025 .KEY MESSAGES... - Strong to severe storms are possible late this afternoon into this evening west of a Cedar Rapids to Freeport line. - Off and on chances of showers and a few thunderstorms continue through Thursday before precipitation chances shifts to the east Friday into the upcoming weekend. && .SHORT TERM /THROUGH TONIGHT/... Issued at 212 PM CDT Mon Sep 22 2025 Morning clouds and fog helped to create an effective warm front across the area today draping from Cedar Rapids northeastward to Dubuque. Temperatures north of this boundary are hovering in the mid 70s while to the south they have warmed into the lower 80s. Dewpoints across the area are in the 60s. Farther to the northwest, a cold front stretches from southeast Minnesota into northwest Iowa before turning west along the South Dakota and Nebraska. Storms are starting to develop in southwest Wisconsin and far northeast Iowa. There is mixed layer CAPE across the area of 1500 to 2000 J/KG and 0 to 6 km shear around 20 knots. Storms have developed in southwest Wisconsin, southeast Minnesota, and far northeast Iowa. This is ahead of convective development in the CAMS which had it delayed until this evening. For this reason, have decided to spread 20 percent chance of precipitation south to Highway 30 or along and south of a Cedar Rapids to Clinton to Sterling/Rock Falls line. After 7 PM this evening, increase chances and slowly spread them south through 06 UTC before storms are expected to dissipate. A Marginal or level 1 out of 5 Risk of severe thunderstorms is in effect this evening northwest of a Cedar Rapids to Freeport line. There is a small Slight Risk for Buchanan County. Any severe storms this afternoon into this evening will be isolated with damaging winds and large hail the main threats. These storms will be slow moving. An elongated trough at 500 MB stretches from the Canadian Maritimes southwest into northern Michigan then west southwestward into Wyoming and Utah. There are two vorticity centers in this trough, the first over northern Michigan and Wisconsin and a second over western Wyoming. Chances for showers and thunderstorms tonight will be associated with the northern energy and deep convergence along the cold front that is forecast to move southeastward and be bear the Mississippi River at 12 UTC Tuesday. The second is forecast to become stretched out and bring chances for showers and storms to the area along and south of a Fairfield to Galesburg line and bring a chance for showers and storms to the area mainly south of Interstate 80. Any rainfall amounts will be light so no relief for the dryness since the beginning of August. && .LONG TERM /TUESDAY THROUGH MONDAY/... Issued at 212 PM CDT Mon Sep 22 2025 The long-term period remains active to start, but a pattern shift by the end of the work week will bring quiet and more pleasant conditions to the area. Wednesday and Thursday: the aforementioned upper trough will slowly pivot across the central CONUS, making slow progress eastward, so we will continue to see a few more of these embedded shortwaves sweeping through the area. Low to medium chances (20-40%) of showers and isolated storms will continue to linger over the area, most likely across our southeast. A slight cooldown is expected these days, with highs lowering to the lower 70s area-wide. Friday into the upcoming weekend: big changes come during this time frame as upper-level ridging over the western CONUS develops and kicks out the persistent trough to the east. The result will be dry conditions for our region with temperatures increasing to slightly above normal (upper 70s to lower 80s), so for those that have outdoor plans this weekend, weather is looking quite pleasant! In fact, the global models and LREF cluster analysis indicate a rex block developing over the western US, which could persist into the early part of next week. For us, that would mean a period of dry conditions continuing beyond the weekend into early next week. && .AVIATION /00Z TAFS THROUGH 00Z TUESDAY/... Issued at 615 PM CDT Mon Sep 22 2025 Scattered showers and storms are possible near DBQ and CID tonight with low confidence on areal coverage (20-40%) with the activity drifting in from the northwest. Even lower confidence the showers/storms reach areas south of I-80 so did not mention in the MLI or BRL TAFs. Patchy shallow MVFR fog is possible late tonight (area-wide) and a period of IFR ceilings are possible at DBQ Tuesday AM. && .DVN WATCHES/WARNINGS/ADVISORIES... IA...None. IL...None. MO...None. && SHORT TERM...Cousins LONG TERM...Cousins/Schultz AVIATION...Uttech
Hazardous Weather Outlook National Weather Service Quad Cities IA IL 308 PM CDT Mon Sep 22 2025 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-232015- 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- 308 PM CDT Mon Sep 22 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 Chances of thunderstorms will increase late this afternoon into the evening, lasting into early Tuesday morning. The Storm Prediction Center continues to have a Marginal Risk (level 1 of 5) of severe weather tonight for locations along and north of a line from Millersburg, IA to Freeport, IL. There is a Slight Risk (level 2 out of 5) for Buchanan County. Damaging winds winds and hail are the main threats. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY Isolated thunderstorms will be possible Tuesday through Thursday. .SPOTTER INFORMATION STATEMENT... Spotter activation is possible this evening. Rainfall reports of an inch or more will be appreciated. Cousins
Special Weather Statement
National Weather Service Quad Cities IA/IL
812 PM CDT Mon Sep 22 2025
IAZ041-042-230200-
Delaware IA-Dubuque IA-
812 PM CDT Mon Sep 22 2025
...Strong thunderstorms will impact portions of northeastern Delaware
and northwestern Dubuque Counties through 900 PM CDT...
At 812 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Balltown to near Edgewood. Movement was
southeast at 25 mph.
HAZARD...Winds in excess of 40 mph and penny size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could cause minor tree limb damage and blow
around unsecured objects. Minor damage to outdoor objects
is possible.
Locations impacted include...
Dubuque, Asbury, Dyersville, Edgewood, New Vienna, Colesburg, Holy
Cross, Greeley, Luxemburg, Rickardsville, Sherrill, Centralia,
Sageville, Balltown, Bankston, Durango, Oneida, Graf, Bankston Park,
and Cottage Hill.
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 4264 9072 4254 9064 4251 9064 4249 9066
4245 9119 4264 9155 4265 9090 4267 9089
TIME...MOT...LOC 0112Z 310DEG 23KT 4271 9088 4263 9147
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH
UttechSpecial Weather Statement
National Weather Service Quad Cities IA/IL
856 PM CDT Mon Sep 22 2025
IAZ040-041-052-053-230245-
Linn IA-Buchanan IA-Delaware IA-Jones IA-
856 PM CDT Mon Sep 22 2025
...Strong thunderstorms will impact portions of northern Linn,
southeastern Buchanan, Delaware and northwestern Jones Counties
through 945 PM CDT...
At 856 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from Dundee to near Masonville to near Center Point.
Movement was east at 25 mph.
HAZARD...Winds in excess of 40 mph and half inch hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could cause minor tree limb damage and blow
around unsecured objects. Minor damage to outdoor objects
is possible.
Locations impacted include...
Manchester, Dyersville, Monticello, Center Point, Central City,
Edgewood, Earlville, Walker, Coggon, Hopkinton, Delhi, Colesburg,
Ryan, Greeley, Prairieburg, Dundee, Delaware, Masonville, Troy Mills,
and Oneida.
This includes Interstate 380 between mile markers 37 and 39.
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 4228 9113 4218 9137 4218 9183 4227 9183
4243 9167 4265 9160 4265 9113
TIME...MOT...LOC 0156Z 287DEG 21KT 4259 9152 4241 9157 4222 9177
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH
UttechSpecial Weather Statement
National Weather Service Quad Cities IA/IL
903 PM CDT Mon Sep 22 2025
IAZ042-054-ILZ001-230300-
Jo Daviess IL-Jackson IA-Dubuque IA-
903 PM CDT Mon Sep 22 2025
...Strong thunderstorms will impact portions of Jo Daviess,
northwestern Jackson and Dubuque Counties through 1000 PM CDT...
At 903 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Menominee to near Epworth. Movement was
southeast at 30 mph.
HAZARD...Winds in excess of 40 mph and half inch hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could cause minor tree limb damage and blow
around unsecured objects. Minor damage to outdoor objects
is possible.
Locations impacted include...
Dubuque, Galena, Asbury, Bellevue, Epworth, East Dubuque, Farley,
Peosta, Elizabeth, Woodbine, La Motte, Menominee, Council Hill, St.
Donatus, Centralia, Sageville, Bernard, Zwingle, Bankston, and
Durango.
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 4259 9069 4251 9064 4251 9031 4234 9006
4219 9073 4246 9112
TIME...MOT...LOC 0203Z 298DEG 26KT 4250 9057 4242 9095
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH
UttechThe Quad Cities radar (KDVN), 100 km away, was scanning. The volume nearest the first event began at 02:04 UTC.
1 hail. Local standard time, as filed.
Hail ranging from pea size to penny size embedded in torrential rainfall downpours was reported.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Iowa in 2025Every state in 2025This day in weather historyWarnings in Iowa, September 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: 1293861.