Alert archive / Iowa / Tornado Warnings in 2021

Tornado Warning 3, NWS La Crosse, WI

July 14, 2021Floyd County, Iowa

NWS La Crosse, WI issued this tornado warning at Jul 14, 2021, 5:33 PM CDT for Floyd County, Iowa. It was in force for 42 min. 9 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
Jul 14, 2021, 5:33 PM CDT (22:33 UTC)
Expired
Jul 14, 2021, 6:15 PM CDT
In force
42 min
Issued by
NWS La Crosse, WI
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Floyd County, IA

The radar

The La Crosse radar (KARX), 154 km from the middle of the area, began a volume at 22:36 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

TimeReportWhereRemark
Jul 14, 5:35 PM CDTTORNADO3 N Rockford, IAEF0 DAMAGE ALONG MOST OF THE PATH EXCEPT FOR ONE FARMSTEAD (HOG FARM) WITH LOW END EF1 DAMAGE NEAR END OF TORNADO PATH. APPROX MAX WIDTH 60 YARDS, MAX SPEED 90 MPH. PATH LENGTH WAS 11 MILES.
Jul 14, 5:40 PM CDTTORNADO2 S Nora Springs, IA
Jul 14, 5:51 PM CDTTORNADO1 Ese Rudd, IA
Jul 14, 5:56 PM CDTTORNADO4 Sw Floyd, IA
Jul 14, 6:03 PM CDTHAIL 0.251 W Colwell, IAAND ALSO 40 MPH WIND GUSTS
Jul 14, 6:03 PM CDTHAIL 0.251 W Colwell, IAAND ALSO 40 MPH WIND GUSTS.
Jul 14, 6:08 PM CDTTSTM WND GST 75Charles City, IAREPORTED AT TRUCK STOP IN TOWN
Jul 14, 6:08 PM CDTTSTM WND GST 75Floyd, IAREPORTED AT TRUCK STOP IN TOWN
Jul 14, 6:08 PM CDTTSTM WND GST 75Floyd, IAREPORTED AT TRUCK STOP IN TOWN.

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.

IssuedProductOfficeLasted
Jul 14, 2:35 PM CDTTornado WatchSPC8 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 10.6 hours before the alert went out and 202 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-pSkew-T log-p diagram, Minneapolis, MN at 12:00Z on 2021-07-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2820 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 2021-07-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -8 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
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
2820 J/kg
Mixed-layer CIN
-46 J/kg
Mixed-layer LCL
1084 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
-8 m²/s²
0-3 km storm-relative helicity
69 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.3

Open this sounding in Storm Lab

The text

As transmitted.

591 
WFUS53 KARX 142233
TORARX
IAC067-142315-
/O.NEW.KARX.TO.W.0003.210714T2233Z-210714T2315Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service La Crosse WI
533 PM CDT Wed Jul 14 2021

The National Weather Service in La Crosse has issued a

* Tornado Warning for...
  Floyd County in north central Iowa...

* Until 615 PM CDT.
    
* At 533 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Rockford, or 11 miles east of Mason City, moving
  east at 30 mph.

  HAZARD...Tornado.

  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...
  Rudd around 540 PM CDT.
  Floyd around 600 PM CDT.
  Charles City around 605 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Idlewilde State Park, Roseville, Howardville, County Roads B 20 And T
26, Oakwood, Carrville and Colwell County Park.

People attending the Floyd County Fairgrounds should seek safe
shelter immediately!

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 4321 9302 4321 9255 4299 9255 4299 9302
TIME...MOT...LOC 2233Z 260DEG 24KT 4310 9297 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

Baumgardt
3 follow-up statements
675 
WWUS53 KARX 142244
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
544 PM CDT Wed Jul 14 2021

IAC067-142315-
/O.CON.KARX.TO.W.0003.000000T0000Z-210714T2315Z/
Floyd IA-
544 PM CDT Wed Jul 14 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR CENTRAL
FLOYD COUNTY...
    
At 544 PM CDT, a confirmed tornado was located near Rudd, or 9 miles
west of Charles City, moving east at 35 mph.

HAZARD...Damaging tornado.

SOURCE...Weather spotters confirmed tornado 2 miles south of Nora 
         Springs.

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...
  Floyd around 555 PM CDT.
  Charles City around 600 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Colwell County Park, Bunns Woods County Park, Idlewilde State Park,
Howardville, County Roads 147 And T 34, Colwell and Midway.

People attending the Floyd County Fairgrounds should seek safe
shelter immediately!

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 4316 9302 4321 9255 4299 9255 4305 9302
TIME...MOT...LOC 2244Z 272DEG 31KT 4309 9286 

TORNADO...OBSERVED
HAIL...<.75IN

$$

Rieck
234 
WWUS53 KARX 142253
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
553 PM CDT Wed Jul 14 2021

IAC067-142315-
/O.CON.KARX.TO.W.0003.000000T0000Z-210714T2315Z/
Floyd IA-
553 PM CDT Wed Jul 14 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR
NORTHEASTERN FLOYD COUNTY...
    
At 553 PM CDT, a confirmed tornado was located near Floyd, or near
Charles City, moving east at 30 mph.

HAZARD...Damaging tornado.

SOURCE...Weather spotters confirmed tornado 1 mile east of Rudd.

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...
  Floyd around 600 PM CDT.
  Charles City around 605 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Colwell County Park, Bunns Woods County Park, Idlewilde State Park,
Howardville, County Roads 147 And T 34, Colwell and Midway.

People attending the Floyd County Fairgrounds should seek safe
shelter immediately!

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 4321 9255 4299 9255 4305 9286 4318 9287
TIME...MOT...LOC 2253Z 267DEG 26KT 4308 9281 

TORNADO...OBSERVED
HAIL...<.75IN

$$

Rieck
222 
WWUS53 KARX 142302
SVSARX

Severe Weather Statement
National Weather Service La Crosse WI
602 PM CDT Wed Jul 14 2021

IAC067-142315-
/O.CON.KARX.TO.W.0003.000000T0000Z-210714T2315Z/
Floyd IA-
602 PM CDT Wed Jul 14 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM CDT FOR
NORTHEASTERN FLOYD COUNTY...
    
At 602 PM CDT, a confirmed tornado was located over Charles City,
moving east at 35 mph.

HAZARD...Damaging tornado.

SOURCE...Weather spotters confirmed tornado north of the Floyd 
         County Fairgrounds.

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
northeastern Floyd County, including the following locations... Floyd
Crossing, Colwell County Park and Colwell.

People attending the Floyd County Fairgrounds should seek safe
shelter immediately!

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 4319 9255 4302 9255 4307 9280 4316 9281
TIME...MOT...LOC 2302Z 267DEG 30KT 4309 9270 

TORNADO...OBSERVED
HAIL...<.75IN

$$

Rieck

The office that day

Everything else NWS La Crosse, WI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 14, 5:43 AM CDTSpecial Weather StatementARXFayette62 min
Jul 14, 6:23 AM CDTSpecial Weather StatementARXFayette67 min
Jul 14, 6:55 AM CDTSpecial Weather StatementARXClayton65 min
Jul 14, 9:06 AM CDTSevere Thunderstorm WarningARXFloyd39 min
Jul 14, 6:00 PM CDTTornado WarningARXFayette45 min
Jul 14, 6:09 PM CDTTornado Warning Tornado observedARXChickasaw, Floyd52 min

Nearby

Tornado Warnings in Iowa, 2021Every tornado warning in 2021Tornadoes in 2021

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.