Alert archive / Illinois / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 66, NWS Quad Cities, IA
NWS Quad Cities, IA issued this severe thunderstorm warning at Apr 2, 2026, 6:43 PM CDT for Bureau County, Putnam County, Illinois. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Apr 2, 2026, 6:43 PM CDT (23:43 UTC)
- Expired
- Apr 2, 2026, 7:30 PM CDT
- In force
- 47 min
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Bureau County, IL, Putnam County, IL
The radar
The Quad Cities radar (KDVN), 104 km from the middle of the area, began a volume at 23:43 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 2, 1:43 PM CDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 11.7 hours before the alert went out and 145 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
- 19 J/kg
- Mixed-layer CIN
- -278 J/kg
- Mixed-layer LCL
- 846 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 453 m²/s²
- 0-3 km storm-relative helicity
- 450 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Apr 2, 6:30 PM CDT, 13 minutes earlier.
Area forecast discussion, Apr 2, 6:30 PM CDT, 13 minutes before
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</html>Hazardous weather outlook, Apr 2, 2:47 PM CDT, 3 hours 56 minutes before
Hazardous Weather Outlook National Weather Service Quad Cities IA IL 247 PM CDT Thu Apr 2 2026 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-032000- 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- 247 PM CDT Thu Apr 2 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...THIS AFTERNOON AND TONIGHT An Enhanced risk, or level 3 of 5 risk for severe weather covers much of the Outlook area. The risk of severe storms will be between 2 and 8 pm this evening. Damaging winds and tornadoes are the primary hazards. Storms will be moving very fast, which will result in significantly less time to act. For this reason, it is important to plan now where you will shelter in the event severe weather strikes, and make sure you stay weather aware. A Wind Advisory is also in effect this afternoon for areas mainly south of a line from Mount Carroll, Illinois to Washington, Iowa where southerly winds will gust to around 45 mph. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY A Slight to Enhanced risk, or Level 2 and 3 out of 5 risk for severe weather covers much of the Outlook area on Friday. The risk for severe storms is primarily Friday evening into the early overnight hours of Saturday morning. Large hail, damaging winds and tornadoes are all possible. Storms will also bring periods of heavy rain and the potential for localized flooding. Below freezing temperatures will be possible early next week that may cause damage to sensitive vegetation. .SPOTTER INFORMATION STATEMENT... Spotter activation will be needed this afternoon into early evening, and again Friday evening. GROSS
In the hours before
Local storm report, Apr 2, 6:21 PM CDT, 22 minutes before
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</html>Local storm report, Apr 2, 6:23 PM CDT, 20 minutes before
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</html>Local storm report, Apr 2, 6:24 PM CDT, 19 minutes before
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</html>Local storm report, Apr 2, 6:31 PM CDT, 12 minutes before
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</html>Local storm report, Apr 2, 6:35 PM CDT, 8 minutes before
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</html>Local storm report, Apr 2, 6:38 PM CDT, 5 minutes before
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</html>The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 2, 2:50 AM CDT | Wind Advisory | DVN | Des Moines, Henry, Jefferson, Lee, Louisa, Muscatine and 2 more | 16 hr |
| Apr 2, 3:18 PM CDT | Tornado Warning | DVN | Jefferson, Keokuk, Washington | 42 min |
| Apr 2, 3:56 PM CDT | Tornado Warning | DVN | Johnson, Washington | 49 min |
| Apr 2, 3:59 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Iowa, Johnson, Keokuk, Linn, Washington | 61 min |
| Apr 2, 4:12 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Jefferson, Keokuk, Louisa, Washington | 63 min |
| Apr 2, 4:27 PM CDT | Tornado Warning | DVN | Cedar, Johnson, Muscatine | 48 min |
| Apr 2, 4:28 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Louisa, Scott | 62 min |
| Apr 2, 4:56 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton, Jackson, Johnson, Jones, Muscatine and 1 more | 64 min |
| Apr 2, 5:05 PM CDT | Tornado Warning | DVN | Cedar, Clinton, Scott | 25 min |
| Apr 2, 5:14 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Jackson | 46 min |
| Apr 2, 5:29 PM CDT | Tornado Warning | DVN | Clinton, Jackson | 46 min |
| Apr 2, 5:46 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Scott | 44 min |
| Apr 2, 10:03 AM CDT | River Flood Warning | DVN | Hancock, McDonough | 60 hr |
| Apr 2, 5:16 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Rock Island, Whiteside | 59 min |
| Apr 2, 5:18 PM CDT | Tornado Warning | DVN | Warren | 27 min |
| Apr 2, 6:04 PM CDT | Severe Thunderstorm Warning | DVN | Carroll, Jo Daviess, Stephenson, Whiteside | 56 min |
| Apr 2, 6:07 PM CDT | Severe Thunderstorm Warning | DVN | Carroll, Whiteside | 23 min |
| Apr 2, 6:14 PM CDT | Severe Thunderstorm Warning | DVN | Bureau, Putnam | 46 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 2026Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.