Alert archive / Iowa / Tornado Warnings in 2026

Tornado Warning 12, NWS Quad Cities, IA

April 2, 2026Carroll County, Illinois; Clinton County, Jackson County, Iowa

NWS Quad Cities, IA issued this tornado warning at Apr 2, 2026, 5:29 PM CDT for Carroll County, Illinois; Clinton County, Jackson County, Iowa. It was in force for 46 min. 11 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: Apr 2, 2026, 5:29 PM CDT (22:29 UTC)
Expired: Apr 2, 2026, 6:15 PM CDT
In force: 46 min
Issued by: NWS Quad Cities, IA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.25 in

Counties Clinton County, IA, Jackson County, IA, Carroll County, IL

The radar

The Quad Cities radar (KDVN), 48 km from the middle of the area, began a volume at 22:30 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
Apr 2, 5:37 PM CDT	HAIL 3	3 N Thomson, IL	Pictures of hail ranging in size from 3.00 to 3.25 inches. The time of the event was estimated using radar.
Apr 2, 5:37 PM CDT	HAIL 3	3 N Thomson, IL	Pictures of hail ranging in size from 3.00 to 3.25 inches. The time of the event was estimated using radar.
Apr 2, 5:37 PM CDT	HAIL 3	3 N Thomson, IL	Pictures of hail ranging in size from 3.00 to 3.25 inches. The time of the event was estimated using radar.
Apr 2, 5:38 PM CDT	HAIL 1.75	2 N Thomson, IL
Apr 2, 5:38 PM CDT	HAIL 1.75	2 N Thomson, IL
Apr 2, 5:38 PM CDT	HAIL 1.75	2 N Thomson, IL
Apr 2, 5:47 PM CDT	TSTM WND DMG	1 W Preston, IA	Several reports of damage southwest of Preston. Possible tornado. Time estimated by radar.
Apr 2, 5:57 PM CDT	TSTM WND DMG	1 Se Savanna, IL	Large tree down, other trees stripped of bark. Time estimated from radar.
Apr 2, 5:57 PM CDT	TSTM WND DMG	1 Se Savanna, IL	Large tree down, other trees stripped of bark. Time estimated from radar.
Apr 2, 5:57 PM CDT	TSTM WND DMG	1 Se Savanna, IL	Large tree down, other trees stripped of bark. Time estimated from radar.
Apr 2, 6:00 PM CDT	TORNADO	2 Ne Savanna, IL	A brief EF1 tornado developed northeast of Savanna with maximum winds near 90 mph. The tornado caused tree damage, with tree fall indicative of a convergent path, and also tossed and damaged a small shed.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

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, 10.5 hours before the alert went out and 248 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

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

Open this sounding in Storm Lab

The text

As transmitted.

295 
WFUS53 KDVN 022229
TORDVN
ILC015-IAC045-097-022315-
/O.NEW.KDVN.TO.W.0012.260402T2229Z-260402T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Quad Cities IA/IL
529 PM CDT Thu Apr 2 2026

The National Weather Service in the Quad Cities has issued a

* Tornado Warning for...
  Western Carroll County in northwestern Illinois...
  Southeastern Jackson County in east central Iowa...
  Clinton County in east central Iowa...

* Until 615 PM CDT.

* At 529 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over Welton, or 12 miles south of Maquoketa, moving
  east at 50 mph.

  HAZARD...Tornado and half dollar size hail.

  SOURCE...Radar indicated rotation.

  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 dangerous storm will be near...
  DeWitt, Delmar, Charlotte, Goose Lake, and Clinton County 
  Fairgrounds around 535 PM CDT.
  Preston, Bryant, and Elvira around 540 PM CDT.
  Clinton, Miles, Andover, Teeds Grove, and Camp Miss-Elk-Ton around 
  545 PM CDT.

Other locations in the path of this tornadic thunderstorm include
Sabula, Thomson, Bulgers Hollow, South Sabula Lake Park, Savanna and
Thomson Causeway.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 4193 9005 4193 9015 4189 9016 4179 9065
      4201 9075 4219 9038 4220 9007
TIME...MOT...LOC 2229Z 252DEG 43KT 4189 9063 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.25 IN

$$

Uttech

3 follow-up statements

351 
WWUS53 KDVN 022240
SVSDVN

Severe Weather Statement
National Weather Service Quad Cities IA/IL
540 PM CDT Thu Apr 2 2026

ILC015-IAC045-097-022315-
/O.CON.KDVN.TO.W.0012.000000T0000Z-260402T2315Z/
Carroll IL-Jackson IA-Clinton IA-
540 PM CDT Thu Apr 2 2026

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR WESTERN
CARROLL...SOUTHEASTERN JACKSON AND NORTHEASTERN CLINTON COUNTIES...

At 539 PM CDT, a confirmed tornado was located near Charlotte, or 9
miles east of Maquoketa, moving northeast at 45 mph.

HAZARD...Damaging tornado and half dollar size hail.

SOURCE...Radar 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...
  Preston, Miles, Spragueville, Green Island, Van Buren, Goose Lake, 
  Bryant, and Reeceville around 545 PM CDT.

Other locations in the path of this tornadic thunderstorm include
Teeds Grove, Savanna, Sabula, Mississippi Palisades State Park and
South Sabula Lake Park.

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.

Motorists should not take shelter under highway overpasses. If you
cannot safely drive away from the tornado, as a last resort, either
park your vehicle and stay put, or abandon your vehicle and lie down
in a low lying area and protect yourself from flying debris.

&&

LAT...LON 4193 9005 4193 9015 4189 9016 4183 9046
      4207 9063 4219 9038 4220 9007
TIME...MOT...LOC 2239Z 231DEG 38KT 4202 9049 

TORNADO...OBSERVED
MAX HAIL SIZE...1.25 IN

$$

Uttech

073 
WWUS53 KDVN 022252
SVSDVN

Severe Weather Statement
National Weather Service Quad Cities IA/IL
552 PM CDT Thu Apr 2 2026

ILC015-IAC045-097-022315-
/O.CON.KDVN.TO.W.0012.000000T0000Z-260402T2315Z/
Carroll IL-Jackson IA-Clinton IA-
552 PM CDT Thu Apr 2 2026

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR WESTERN
CARROLL...SOUTHEASTERN JACKSON AND NORTHEASTERN CLINTON COUNTIES...

At 552 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Reeceville, or 17 miles west of Mount Carroll,
moving northeast at 45 mph.

HAZARD...Tornado and quarter size hail.

SOURCE...Radar indicated rotation.

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 dangerous storm will be near...
  Savanna, Sabula, Mississippi Palisades State Park, and South 
  Sabula Lake Park around 600 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

Motorists should not take shelter under highway overpasses. If you
cannot safely drive away from the tornado, as a last resort, either
park your vehicle and stay put, or abandon your vehicle and lie down
in a low lying area and protect yourself from flying debris.

&&

LAT...LON 4193 9005 4193 9015 4197 9036 4212 9053
      4219 9038 4220 9007
TIME...MOT...LOC 2252Z 234DEG 37KT 4210 9032 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN

$$

Uttech

105 
WWUS53 KDVN 022307
SVSDVN

Severe Weather Statement
National Weather Service Quad Cities IA/IL
607 PM CDT Thu Apr 2 2026

ILC015-IAC045-097-022315-
/O.CON.KDVN.TO.W.0012.000000T0000Z-260402T2315Z/
Carroll IL-Jackson IA-Clinton IA-
607 PM CDT Thu Apr 2 2026

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR WESTERN
CARROLL...SOUTHEASTERN JACKSON AND NORTHEASTERN CLINTON COUNTIES...

At 607 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Savanna, or near Mount Carroll, moving northeast at
45 mph.

HAZARD...Tornado and quarter size hail.

SOURCE...Radar indicated rotation.

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 tornadic thunderstorm will remain over mainly rural areas of
western Carroll, southeastern Jackson and northeastern Clinton
Counties, including the following locations... Mississippi Palisades
State Park, Teeds Grove, Thomson, Thomson Causeway, South Sabula Lake
Park, and Camp Miss-Elk-Ton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

Motorists should not take shelter under highway overpasses. If you
cannot safely drive away from the tornado, as a last resort, either
park your vehicle and stay put, or abandon your vehicle and lie down
in a low lying area and protect yourself from flying debris.

&&

LAT...LON 4193 9005 4193 9015 4196 9033 4211 9026
      4219 9023 4220 9007
TIME...MOT...LOC 2307Z 242DEG 39KT 4209 9011 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN

$$

Uttech

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	Bureau, Hancock, Henderson, Henry, McDonough, Mercer and 4 more	16 hr
Apr 2, 10:03 AM CDT	River Flood Warning	DVN	Hancock, McDonough	60 hr
Apr 2, 4:28 PM CDT	Severe Thunderstorm Warning	DVN	Hancock, Henderson, Henry, Mercer, Rock Island, Warren	62 min
Apr 2, 5:14 PM CDT	Severe Thunderstorm Warning	DVN	Carroll	46 min
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, 5:46 PM CDT	Severe Thunderstorm Warning	DVN	Henry, Rock Island, Whiteside	44 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 Considerable damage threat	DVN	Carroll, Whiteside	23 min
Apr 2, 6:14 PM CDT	Severe Thunderstorm Warning	DVN	Bureau, Putnam	46 min
Apr 2, 6:43 PM CDT	Severe Thunderstorm Warning	DVN	Bureau, Putnam	47 min
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 Tornado observed	DVN	Cedar, Johnson, Muscatine	48 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

Nearby

Tornado Warnings in Iowa, 2026 Tornado Warnings in Illinois, 2026 Every tornado warning in 2026 Tornadoes 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.