Alert archive / Iowa / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 21, NWS Quad Cities, IA

March 19, 2025Henry County, Louisa County, Washington County, Iowa

NWS Quad Cities, IA issued this severe thunderstorm warning at Mar 19, 2025, 11:46 AM CDT for Henry County, Louisa County, Washington County, Iowa. It was in force for 44 min. 1 report 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 19, 2025, 11:46 AM CDT (16:46 UTC)
Expired: Mar 19, 2025, 12:30 PM CDT
In force: 44 min
Issued by: NWS Quad Cities, IA
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

Counties Henry County, IA, Louisa County, IA, Washington County, IA

The radar

The Quad Cities radar (KDVN), 75 km from the middle of the area, began a volume at 16:49 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 19, 11:54 AM CDT	TSTM WND GST 60	2 S Crawfordsville, IA	Time estimated using radar.

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

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 4.8 hours before the alert went out and 81 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1248 m above ground
0-6 km bulk shear: 66 kt
0-1 km storm-relative helicity: 380 m²/s²
0-3 km storm-relative helicity: 429 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

As transmitted.

321 
WUUS53 KDVN 191646
SVRDVN
IAC087-115-183-191730-
/O.NEW.KDVN.SV.W.0021.250319T1646Z-250319T1730Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Quad Cities IA/IL
1146 AM CDT Wed Mar 19 2025

The National Weather Service in the Quad Cities has issued a

* Severe Thunderstorm Warning for...
  Northeastern Henry County in southeastern Iowa...
  Western Louisa County in southeastern Iowa...
  Southeastern Washington County in southeastern Iowa...

* Until 1230 PM CDT.

* At 1145 AM CDT, a severe thunderstorm was located over Noble, or 11
  miles southeast of Washington, moving northeast at 35 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Sand Springs, Columbus Junction, Letts, Noble, Fredonia, Ainsworth,
  Winfield, Olds, Crawfordsville, Columbus City, Cairo, Louisa County
  Fairgrounds, Swedesburg, Wyman, Grandview, Cotter, and Wayland.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

For your protection move to an interior room on the lowest floor of a
sturdy building.

&&

LAT...LON 4136 9140 4138 9137 4134 9137 4133 9120
      4133 9119 4123 9111 4105 9157 4122 9171
TIME...MOT...LOC 1645Z 240DEG 32KT 4116 9158 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Gibbs

6 follow-up statements

385 
WWUS53 KDVN 191651
SVSDVN

Severe Weather Statement
National Weather Service Quad Cities IA/IL
1151 AM CDT Wed Mar 19 2025

IAC087-115-183-191730-
/O.CON.KDVN.SV.W.0021.000000T0000Z-250319T1730Z/
Henry IA-Louisa IA-Washington IA-
1151 AM CDT Wed Mar 19 2025

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 PM CDT
FOR NORTHEASTERN HENRY...WESTERN LOUISA AND SOUTHEASTERN WASHINGTON
COUNTIES...

At 1151 AM CDT, a severe thunderstorm was located over
Crawfordsville, or 10 miles southwest of Columbus Junction, moving
northeast at 35 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Sand Springs, Columbus Junction, Letts, Noble, Fredonia, Winfield,
Olds, Crawfordsville, Columbus City, Cairo, Louisa County
Fairgrounds, Swedesburg, Wyman, Grandview, Cotter, and Wayland.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
sturdy building.

&&

LAT...LON 4136 9140 4138 9137 4134 9137 4133 9120
      4133 9119 4123 9111 4106 9158 4111 9162
      4120 9169
TIME...MOT...LOC 1651Z 240DEG 32KT 4119 9152 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Gibbs

496 
WWUS53 KDVN 191657
SVSDVN

Severe Weather Statement
National Weather Service Quad Cities IA/IL
1157 AM CDT Wed Mar 19 2025

IAC087-115-183-191730-
/O.CON.KDVN.SV.W.0021.000000T0000Z-250319T1730Z/
Henry IA-Louisa IA-Washington IA-
1157 AM CDT Wed Mar 19 2025

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 PM CDT
FOR NORTHEASTERN HENRY...WESTERN LOUISA AND SOUTHEASTERN WASHINGTON
COUNTIES...

At 1156 AM CDT, a severe thunderstorm was located over Wyman, or near
Columbus Junction, moving northeast at 35 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Sand Springs, Columbus Junction, Letts, Cairo, Fredonia, Louisa
County Fairgrounds, Winfield, Wyman, Crawfordsville, Grandview,
Cotter, and Columbus City.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
sturdy building.

&&

LAT...LON 4136 9140 4138 9137 4134 9137 4133 9120
      4133 9119 4123 9111 4110 9147 4115 9155
      4123 9164
TIME...MOT...LOC 1656Z 240DEG 32KT 4121 9146 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Gibbs

991 
WWUS53 KDVN 191705
SVSDVN

Severe Weather Statement
National Weather Service Quad Cities IA/IL
1205 PM CDT Wed Mar 19 2025

IAC087-115-183-191730-
/O.CON.KDVN.SV.W.0021.000000T0000Z-250319T1730Z/
Henry IA-Louisa IA-Washington IA-
1205 PM CDT Wed Mar 19 2025

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 PM CDT
FOR NORTHEASTERN HENRY...WESTERN LOUISA AND EAST CENTRAL WASHINGTON
COUNTIES...

At 1205 PM CDT, a severe thunderstorm was located over Columbus City,
or over Columbus Junction, moving northeast at 35 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Sand Springs, Columbus Junction, Letts, Cairo, Fredonia, Louisa
County Fairgrounds, Winfield, Wyman, Grandview, Cotter, Columbus
City, and Crawfordsville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
sturdy building.

&&

LAT...LON 4136 9140 4138 9137 4134 9137 4133 9120
      4133 9119 4123 9111 4111 9144 4120 9150
      4125 9160
TIME...MOT...LOC 1705Z 240DEG 32KT 4125 9136 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Gibbs

533 
WWUS53 KDVN 191710
SVSDVN

Severe Weather Statement
National Weather Service Quad Cities IA/IL
1210 PM CDT Wed Mar 19 2025

IAC087-191720-
/O.CAN.KDVN.SV.W.0021.000000T0000Z-250319T1730Z/
Henry IA-
1210 PM CDT Wed Mar 19 2025

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN HENRY COUNTY IS
CANCELLED...

The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

&&

LAT...LON 4138 9137 4134 9137 4133 9119 4123 9111
      4114 9135 4116 9137 4116 9138 4128 9153
TIME...MOT...LOC 1710Z 240DEG 32KT 4127 9131 

$$

IAC115-183-191730-
/O.CON.KDVN.SV.W.0021.000000T0000Z-250319T1730Z/
Louisa IA-Washington IA-
1210 PM CDT Wed Mar 19 2025

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 PM CDT
FOR WESTERN LOUISA AND EAST CENTRAL WASHINGTON COUNTIES...

At 1210 PM CDT, a severe thunderstorm was located over Fredonia, or
over Columbus Junction, moving northeast at 35 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Sand Springs, Columbus Junction, Letts, Cairo, Fredonia, Louisa
County Fairgrounds, Grandview, Cotter, and Columbus City.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
sturdy building.

&&

LAT...LON 4138 9137 4134 9137 4133 9119 4123 9111
      4114 9135 4116 9137 4116 9138 4128 9153
TIME...MOT...LOC 1710Z 240DEG 32KT 4127 9131 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Gibbs

740 
WWUS53 KDVN 191718
SVSDVN

Severe Weather Statement
National Weather Service Quad Cities IA/IL
1218 PM CDT Wed Mar 19 2025

IAC115-183-191730-
/O.CON.KDVN.SV.W.0021.000000T0000Z-250319T1730Z/
Louisa IA-Washington IA-
1218 PM CDT Wed Mar 19 2025

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 PM CDT
FOR WESTERN LOUISA AND EAST CENTRAL WASHINGTON COUNTIES...

At 1218 PM CDT, a severe thunderstorm was located over Letts, or near
Columbus Junction, moving northeast at 45 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Sand Springs, Columbus Junction, Letts, Cairo, Fredonia, Louisa
County Fairgrounds, Grandview, Cotter, and Columbus City.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
sturdy building.

&&

LAT...LON 4138 9137 4134 9137 4133 9119 4123 9111
      4114 9135 4116 9137 4116 9138 4128 9153
TIME...MOT...LOC 1718Z 239DEG 37KT 4129 9125 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Gibbs

851 
WWUS53 KDVN 191726
SVSDVN

Severe Weather Statement
National Weather Service Quad Cities IA/IL
1226 PM CDT Wed Mar 19 2025

IAC115-183-191736-
/O.EXP.KDVN.SV.W.0021.000000T0000Z-250319T1730Z/
Louisa IA-Washington IA-
1226 PM CDT Wed Mar 19 2025

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN LOUISA AND EAST
CENTRAL WASHINGTON COUNTIES WILL EXPIRE AT 1230 PM CDT...

The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However, gusty
winds are still possible with this thunderstorm.

&&

LAT...LON 4138 9137 4134 9137 4133 9119 4123 9111
      4114 9135 4116 9137 4116 9138 4128 9153
TIME...MOT...LOC 1726Z 240DEG 32KT 4132 9119 

$$

Gibbs

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 19, 4:44 AM CDT	Severe Thunderstorm Warning	DVN	Benton, Iowa	46 min
Mar 19, 5:30 AM CDT	Severe Thunderstorm Warning	DVN	Benton, Delaware, Johnson, Jones, Linn	45 min
Mar 19, 6:09 AM CDT	Special Weather Statement	DVN	Dubuque	51 min
Mar 19, 8:26 AM CDT	Special Weather Statement	DVN	Cedar, Scott	49 min
Mar 19, 8:52 AM CDT	Special Weather Statement	DVN	Clinton	53 min
Mar 19, 8:57 AM CDT	Severe Thunderstorm Warning	DVN	Clinton	33 min
Mar 19, 11:12 AM CDT	Special Weather Statement	DVN	Jefferson	48 min
Mar 19, 11:39 AM CDT	Special Weather Statement	DVN	Henry, Louisa, Washington	51 min
Mar 19, 12:36 PM CDT	Severe Thunderstorm Warning	DVN	Louisa, Muscatine	54 min
Mar 19, 1:01 PM CDT	Severe Thunderstorm Warning	DVN	Cedar, Muscatine, Scott	33 min

Nearby

Severe Thunderstorm Warnings in Iowa, 2025 Every severe thunderstorm warning in 2025

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.