Alert archive / Iowa / Tornado Warnings in 2026
Tornado Warning 72, NWS Quad Cities, IA
NWS Quad Cities, IA issued this tornado warning at Aug 7, 2026, 3:59 PM CDT for Buchanan County, Iowa. It was in force for 31 min. 3 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 7, 2026, 3:59 PM CDT (20:59 UTC)
- Expired
- Aug 7, 2026, 4:30 PM CDT
- In force
- 31 min
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
- Tornado
- Observed
- Hail
- 0.75 in
County Buchanan County, IA
The radar
The Quad Cities radar (KDVN), 155 km from the middle of the area, began a volume at 21:03 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 7, 4:12 PM CDT | TORNADO | 2 Se Fairbank, IA | A well documented, large spatially, HP supercell, low-level mesocyclone produced an EF2 tornado along its 5 mile path. Most of the damage was EF1 damage to structures and trees. It is likely that this tornado had numerous short-lived vortices on the ground lea |
| Aug 7, 4:30 PM CDT | TSTM WND DMG | 4 Sse Stanley, IA | Roof of a livestock barn is halfway torn off. Time estimated from radar. |
| Aug 7, 4:30 PM CDT | TSTM WND DMG | 4 S Stanley, IA | Roof damage to livestock barns. Time estimated from radar. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this tornado warning; the first came 13 minutes after it went out.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 7, 1:40 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 9.0 hours before the alert went out and 288 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 506 J/kg
- Mixed-layer CIN
- -343 J/kg
- Mixed-layer LCL
- 1332 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 211 m²/s²
- 0-3 km storm-relative helicity
- 250 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted.
111
WFUS53 KDVN 072059
TORDVN
IAC019-072130-
/O.NEW.KDVN.TO.W.0072.260807T2059Z-260807T2130Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Quad Cities IA/IL
359 PM CDT Fri Aug 7 2026
The National Weather Service in the Quad Cities has issued a
* Tornado Warning for...
Northwestern Buchanan County in northeastern Iowa...
* Until 430 PM CDT.
* At 359 PM CDT, a confirmed tornado was located near Readlyn, or 13
miles west of Oelwein, moving southeast at 40 mph. There have been
multiple reports of brief tornadoes in southern Bremer County and
northern Black Hawk County.
HAZARD...Damaging tornado.
SOURCE...Weather spotters confirmed tornado.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* The tornado will be near...
Fairbank and Littleton around 405 PM CDT.
Hazleton, Otterville, Fontana County Park, and Fontana Park around
410 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
&&
LAT...LON 4246 9197 4255 9208 4264 9208 4264 9171
TIME...MOT...LOC 2059Z 311DEG 34KT 4265 9218
TORNADO...OBSERVED
MAX HAIL SIZE...<.75 IN
$$
Gibbs2 follow-up statements
177
WWUS53 KDVN 072103
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
403 PM CDT Fri Aug 7 2026
IAC019-072130-
/O.CON.KDVN.TO.W.0072.000000T0000Z-260807T2130Z/
Buchanan IA-
403 PM CDT Fri Aug 7 2026
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 430 PM CDT FOR
NORTHWESTERN BUCHANAN COUNTY...
At 402 PM CDT, a confirmed tornado was located near Fairbank, or 12
miles west of Oelwein, moving southeast at 40 mph.
HAZARD...Damaging tornado and ping pong ball size hail.
SOURCE...Weather spotters confirmed tornado.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This tornado will be near...
Fairbank and Littleton around 405 PM CDT.
Hazleton, Otterville, Fontana County Park, and Fontana Park around
410 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
&&
LAT...LON 4246 9197 4255 9208 4264 9208 4264 9171
TIME...MOT...LOC 2102Z 311DEG 34KT 4264 9216
TORNADO...OBSERVED
MAX HAIL SIZE...1.50 IN
$$
Gibbs602
WWUS53 KDVN 072113
SVSDVN
Severe Weather Statement
National Weather Service Quad Cities IA/IL
413 PM CDT Fri Aug 7 2026
IAC019-072130-
/O.CON.KDVN.TO.W.0072.000000T0000Z-260807T2130Z/
Buchanan IA-
413 PM CDT Fri Aug 7 2026
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 430 PM CDT FOR
NORTHWESTERN BUCHANAN COUNTY...
At 413 PM CDT, a confirmed tornado was located over Fairbank, or 7
miles southwest of Oelwein, moving southeast at 40 mph.
HAZARD...Damaging tornado and golf ball size hail.
SOURCE...Weather spotters confirmed tornado.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This tornado will be near...
Hazleton, Stanley, Littleton, Otterville, Fontana County Park, and
Fontana Park around 420 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4246 9197 4255 9208 4264 9208 4264 9171
TIME...MOT...LOC 2113Z 304DEG 33KT 4261 9202
TORNADO...OBSERVED
MAX HAIL SIZE...1.75 IN
$$
GibbsWhat forecasters said that day
The local office's own words before this tornado warning went out, 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 this tornado warning went out at Aug 7, 2:27 PM CDT, 1 hour 32 minutes earlier. Its key messages:
- A cold front will bring scattered showers and thunderstorms (30-50% coverage) to the area late this afternoon into the evening hours. A few of these storms could be severe with the primary hazards being gusty winds and locally heavy downpours.
- An active pattern keeps rain chances on the table through the middle of next week with plenty of dry hours in between, but muggy to oppressive humidity returns.
Area forecast discussion, Aug 7, 2:27 PM CDT, 1 hour 32 minutes before
Area Forecast Discussion National Weather Service Quad Cities IA IL 227 PM CDT Fri Aug 7 2026 .KEY MESSAGES... - A cold front will bring scattered showers and thunderstorms (30-50% coverage) to the area late this afternoon into the evening hours. A few of these storms could be severe with the primary hazards being gusty winds and locally heavy downpours. - An active pattern keeps rain chances on the table through the middle of next week with plenty of dry hours in between, but muggy to oppressive humidity returns. && .SHORT TERM /THROUGH SATURDAY NIGHT/... Issued at 158 PM CDT Fri Aug 7 2026 A line of thunderstorms continues to develop across central Iowa early this afternoon. This line of storms is forecast to move south southeastward along a CAPE gradient across central and eastern Iowa this afternoon into this evening. There is a severe thunderstorm watch in effect through 10 PM for area along and west of a line from Manchester to Tipton to Wapello. Damaging winds and heavy rain are the main threats. Storms are forecast to exit the area prior to 6 UTC. Later tonight, patchy fog is possible overnight as winds becoming light with low abundant level moisture across the area. Low temperatures are expected to be in the 60s. A cold front is forecast to move across the area tonight and turn winds to the west. Winds are forecast to turn the south on Saturday with increasing moisture during the afternoon and evening hours. High temperatures on Saturday will be in the 80s across the area. Another shortwave is forecast to move across the area Saturday and bring chances of showers and thunderstorms to the area mainly after midnight. Severe thunderstorms are possible overnight. There is a Marginal (level 1 out of 5) Risk of severe thunderstorms Saturday along and west of the Mississippi River. && .LONG TERM /SUNDAY THROUGH THURSDAY/... Issued at 116 AM CDT Fri Aug 7 2026 Sunday-Monday...As the two shortwaves quickly move to the southeast, the deformation zone remain in place Sunday, but PoPs should decrease to 30-50% with the lack of upper-level dynamical support. The low pressure over the Central Plains is also expected to stall out which will be an issue heading into Sunday night as another subtle shortwave zooms across Wyoming into South Dakota and Nebraska. A second LLJ is likely to develop, spawning another round of showers and storms Sunday night into Monday. This shortwave trough will also reinvigorate the deformation zone and pull it northward. The increased southwesterly flow, low-level WAA, and moisture advection could lead to excessive heat developing, especially in our south where clearing skies are more likely. Current LREF guidance has a 20-30% chance of heat indices exceeding 100 degrees south of Interstate 80 Monday afternoon. Regardless though, dew points are going to be in the 70s, possibly in the mid-to-upper 70s (40-60% chance per 06.12z LREF guidance), making it feel muggy to oppressive outside even with potential cloud cover. Tuesday-Thursday...Multiple shortwaves passages will keep precipitation chances around through the middle of next week, but these repeated passages should slowly push the deformation zone further south as high pressure eventually settles back in over the region. There is general consensus among the ensembles that a return to north-to-northeasterly flow in the low-levels should erode away at the high dew points and temperatures, returning to the area to seasonable conditions by the end of next week. && .AVIATION /18Z TAFS THROUGH 18Z SATURDAY/... Issued at 1240 PM CDT Fri Aug 7 2026 In the wake of fog this morning, periods of MVFR ceilings continue across the area at all TAF sites. A storm system is forecast to move across the area later this afternoon into this evening with low confidence in the exact timing and locations. Used 3 to 4 hour prob30 window at each TAF site to account for the timing of these storms. If storms do occur than MVFR ceilings are possible in storms with periods of IFR to LIFR visibilities in the strongest storms. Conditions are expected to improve to VFR behind the storm but fog is possible tonight with MVFR to IFR visibilities possible after 06 UTC with conditions improving by 14 UTC Saturday. Southerly winds today will shift to the northwest behind the front from west to east. && .DVN WATCHES/WARNINGS/ADVISORIES... IA...None. IL...None. MO...None. && SHORT TERM...Cousins LONG TERM...Delaune AVIATION...Cousins
Hazardous weather outlook, Aug 7, 6:00 AM CDT, 9 hours 59 minutes before
Hazardous Weather Outlook National Weather Service Quad Cities IA IL 600 AM CDT Fri Aug 7 2026 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-081100- 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- 600 AM CDT Fri Aug 7 2026 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...TODAY AND TONIGHT Dense fog will reduce visibility to a quarter mile or less at times across portions of eastern Iowa and northeast Missouri through the early morning commute. Scattered thunderstorms (30% to 50% chance) are possible late this afternoon into the overnight, mainly west of the Mississippi River. Isolated severe storms with hail and strong winds is possible along with locally heavy rain. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY Another round of scattered showers and thunderstorms are possible Saturday night and Sunday. A few of these storms could turn severe with gusty winds, hail and heavy downpours. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed late this afternoon and evening.
The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 2:53 AM CDT | Dense Fog Advisory | DVN | Benton, Buchanan, Cedar, Delaware, Dubuque, Iowa and 7 more | 6 hr |
| Aug 7, 3:49 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan | 56 min |
| Aug 7, 4:20 PM CDT | Tornado Warning | DVN | Buchanan | 40 min |
| Aug 7, 4:38 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan | 37 min |
| Aug 7, 4:48 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Delaware, Jones, Linn | 57 min |
| Aug 7, 5:02 PM CDT | Tornado Warning | DVN | Delaware, Jones, Linn | 43 min |
| Aug 7, 5:03 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan | 27 min |
| Aug 7, 5:10 PM CDT | Tornado Warning | DVN | Buchanan, Linn | 35 min |
| Aug 7, 5:18 PM CDT | Tornado Warning | DVN | Cedar, Jones, Linn | 57 min |
| Aug 7, 5:26 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Iowa, Johnson, Linn | 36 min |
| Aug 7, 5:57 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton | 33 min |
| Aug 7, 6:30 PM CDT | Special Weather Statement | DVN | Scott | 45 min |
| Aug 7, 6:39 PM CDT | Severe Thunderstorm Warning | DVN | Iowa | 38 min |
Nearby
Tornado Warnings in Iowa, 2026Every tornado warning in 2026Tornadoes in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.