Alert archive / Iowa / Tornado Warnings in 2026

Tornado Warning 2, NWS Quad Cities, IA

March 10, 2026Henry County, Jefferson County, Iowa

NWS Quad Cities, IA issued this tornado warning at Mar 10, 2026, 6:38 PM CDT for Henry County, Jefferson County, Iowa. It was in force for 20 min. 2 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: Mar 10, 2026, 6:38 PM CDT (23:38 UTC)
Expired: Mar 10, 2026, 6:58 PM CDT
In force: 20 min
Issued by: NWS Quad Cities, IA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.75 in

Counties Henry County, IA, Jefferson County, IA

The radar

The Quad Cities radar (KDVN), 119 km from the middle of the area, began a volume at 23:42 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
Mar 10, 6:40 PM CDT	HAIL 1	1 Ene Fairfield Municip, IA	Lasted from 640 to 650 PM. Covered the deck. No wind.
Mar 10, 6:45 PM CDT	HAIL 1	1 Sw Perlee, IA	Up to quarter size hail. Time of the event was estimated using radar.

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
Mar 10, 3:57 PM CDT	Tornado Watch	SPC	10 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 11.6 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.

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: 551 J/kg
Mixed-layer CIN: -175 J/kg
Mixed-layer LCL: 971 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 101 m²/s²
0-3 km storm-relative helicity: 75 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

601 
WFUS53 KDVN 102338
TORDVN
IAC087-101-110045-
/O.NEW.KDVN.TO.W.0002.260310T2338Z-260311T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Quad Cities IA/IL
638 PM CDT Tue Mar 10 2026

The National Weather Service in the Quad Cities has issued a

* Tornado Warning for...
  Henry County in southeastern Iowa...
  Jefferson County in southeastern Iowa...

* Until 745 PM CDT.

* At 637 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over Jefferson County Fairgrounds, or over Fairfield,
  moving east at 40 mph.

  HAZARD...Tornado and golf ball 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...
  Fairfield, Lockridge, Salina, Perlee, Germanville, and Beckwith 
  around 645 PM CDT.
  Glasgow, Merrimac, and Mac Coon Access around 650 PM CDT.
  Wayland, Rome, and Trenton around 655 PM CDT.

Other locations in the path of this tornadic thunderstorm include
Swedesburg, Olds, Winfield and Mount Union.

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.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4109 9217 4116 9155 4116 9137 4090 9137
      4092 9217
TIME...MOT...LOC 2337Z 251DEG 36KT 4100 9201 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.75 IN

$$

Gibbs

2 follow-up statements

907 
WWUS53 KDVN 102348
SVSDVN

Severe Weather Statement
National Weather Service Quad Cities IA/IL
648 PM CDT Tue Mar 10 2026

IAC087-101-110045-
/O.CON.KDVN.TO.W.0002.000000T0000Z-260311T0045Z/
Henry IA-Jefferson IA-
648 PM CDT Tue Mar 10 2026

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR HENRY AND
JEFFERSON COUNTIES...

At 648 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Beckwith, or near Fairfield, moving east at 40 mph.

HAZARD...Tornado and golf ball 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...
  Wayland, Lockridge, Rome, Merrimac, Germanville, Trenton, and Mac 
  Coon Access around 655 PM CDT.

Other locations in the path of this tornadic thunderstorm include
Swedesburg, Olds, Winfield and Mount Union.

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.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4103 9210 4110 9201 4116 9155 4116 9137
      4090 9137 4092 9210
TIME...MOT...LOC 2348Z 251DEG 36KT 4104 9187 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.75 IN

$$

Gibbs

584 
WWUS53 KDVN 102358
SVSDVN

Severe Weather Statement
National Weather Service Quad Cities IA/IL
658 PM CDT Tue Mar 10 2026

IAC087-101-110008-
/O.CAN.KDVN.TO.W.0002.000000T0000Z-260311T0045Z/
Henry IA-Jefferson IA-
658 PM CDT Tue Mar 10 2026

...THE TORNADO WARNING FOR HENRY AND JEFFERSON COUNTIES IS
CANCELLED...

The tornado threat has diminished and the Tornado Warning has been
cancelled. However, large hail and damaging winds remain likely and a
Severe Thunderstorm Warning remains in effect for the area.

A Tornado Watch remains in effect until 1100 PM CDT for southeastern
Iowa.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
the Quad Cities.

&&

LAT...LON 4103 9210 4110 9201 4116 9155 4116 9137
      4090 9137 4092 9210
TIME...MOT...LOC 2357Z 251DEG 36KT 4107 9174 

$$

Gibbs

The office that day

Everything else NWS Quad Cities, IA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 10, 10:00 AM CDT	Dense Fog Advisory	DVN	Henry, Jefferson, Keokuk, Washington	3 hr
Mar 10, 5:54 PM CDT	Severe Thunderstorm Warning	DVN	Des Moines, Louisa	51 min
Mar 10, 6:01 PM CDT	Severe Thunderstorm Warning	DVN	Des Moines	44 min
Mar 10, 6:11 PM CDT	Severe Thunderstorm Warning	DVN	Jefferson, Van Buren	64 min
Mar 10, 6:40 PM CDT	Severe Thunderstorm Warning	DVN	Delaware, Dubuque, Jones	50 min
Mar 10, 6:42 PM CDT	Severe Thunderstorm Warning	DVN	Clinton, Scott	33 min
Mar 10, 6:45 PM CDT	Severe Thunderstorm Warning	DVN	Des Moines, Louisa	44 min
Mar 10, 6:57 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Johnson, Muscatine, Scott, Washington	48 min
Mar 10, 6:58 PM CDT	Severe Thunderstorm Warning	DVN	Henry, Washington	45 min
Mar 10, 6:59 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Johnson, Jones, Linn	26 min

Nearby

Tornado Warnings in Iowa, 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.