Alert archive / Iowa / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 252, NWS Sioux Falls, SD

July 22, 20224 counties in Iowa

NWS Sioux Falls, SD issued this severe thunderstorm warning at Jul 22, 2022, 2:27 AM CDT for 4 counties in Iowa. It was in force for 31 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
Jul 22, 2022, 2:27 AM CDT (07:27 UTC)
Expired
Jul 22, 2022, 2:58 AM CDT
In force
31 min
Issued by
NWS Sioux Falls, SD
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

Counties Cherokee County, IA, O'Brien County, IA, Plymouth County, IA, Sioux County, IA

The radar

The Sioux Falls radar (KFSD), 105 km from the middle of the area, began a volume at 07:28 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 22, 2:29 AM CDTHAIL 0.75Orange City, IAREPORT FROM MPING: DIME (0.75 IN.). TIME ESTIMATED VIA RADAR.
Jul 22, 2:30 AM CDTTSTM WND DMGOrange City, IATHE NORTHWESTERN CAMPUS IN ORANGE CITY HAD MULTIPLE TREE BRANCHES DOWN. SOME BRANCHES WERE ESTIMATED TO BE BETWEEN 4 - 6 INCHES IN DIAMETER.

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

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 7.5 hours before the alert went out and 178 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, Omaha, NE at 00:00Z on 2022-07-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 92 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, Omaha, NE at 00:00Z on 2022-07-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 86 square meters per square second.19395878Sfc1 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
92 J/kg
Mixed-layer CIN
-338 J/kg
Mixed-layer LCL
2429 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
86 m²/s²
0-3 km storm-relative helicity
241 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

404 
WUUS53 KFSD 220727
SVRFSD
IAC035-141-149-167-220815-
/O.NEW.KFSD.SV.W.0252.220722T0727Z-220722T0815Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Sioux Falls SD
227 AM CDT Fri Jul 22 2022

The National Weather Service in Sioux Falls has issued a

* Severe Thunderstorm Warning for...
  Western Cherokee County in northwestern Iowa...
  Southeastern Sioux County in northwestern Iowa...
  Northeastern Plymouth County in northwestern Iowa...
  Southwestern O'Brien County in northwestern Iowa...

* Until 315 AM CDT.

* At 227 AM CDT, severe thunderstorms were located along a line
  extending from Sioux Center to near Remsen, moving east at 25 mph.

  HAZARD...Quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to vehicles is expected.

* Severe thunderstorms will be near...
  Remsen around 230 AM CDT.
  Marcus around 240 AM CDT.

Other locations in the path of these severe thunderstorms include
Alton, Cleghorn, Hospers, Quimby and Granville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4309 9587 4257 9547 4257 9588 4309 9629
TIME...MOT...LOC 0727Z 267DEG 23KT 4307 9619 4279 9592 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH

$$

Rogers
2 follow-up statements
267 
WWUS53 KFSD 220746
SVSFSD

Severe Weather Statement
National Weather Service Sioux Falls SD
246 AM CDT Fri Jul 22 2022

IAC035-141-149-167-220815-
/O.CON.KFSD.SV.W.0252.000000T0000Z-220722T0815Z/
Cherokee IA-Sioux IA-Plymouth IA-O'Brien IA-
246 AM CDT Fri Jul 22 2022

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 AM CDT
FOR WESTERN CHEROKEE...SOUTHEASTERN SIOUX...NORTHEASTERN PLYMOUTH AND
SOUTHWESTERN O'BRIEN COUNTIES...

At 246 AM CDT, severe thunderstorms were located along a line
extending from near Granville to near Quimby, moving east at 40 mph.

HAZARD...Quarter size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is expected.

Locations impacted include...
  Quimby, Washta and Cleghorn.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4257 9547 4257 9573 4304 9607 4304 9583
TIME...MOT...LOC 0746Z 289DEG 36KT 4296 9590 4268 9563 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH

$$

Rogers
650 
WWUS53 KFSD 220758
SVSFSD

Severe Weather Statement
National Weather Service Sioux Falls SD
258 AM CDT Fri Jul 22 2022

IAC035-141-149-167-220808-
/O.CAN.KFSD.SV.W.0252.000000T0000Z-220722T0815Z/
Cherokee IA-Sioux IA-Plymouth IA-O'Brien IA-
258 AM CDT Fri Jul 22 2022

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN CHEROKEE...
SOUTHEASTERN SIOUX...NORTHEASTERN PLYMOUTH AND SOUTHWESTERN O'BRIEN
COUNTIES IS CANCELLED...
    
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore, the warning has
been cancelled.

LAT...LON 4257 9547 4257 9573 4304 9607 4304 9583
TIME...MOT...LOC 0756Z 267DEG 23KT 4296 9581 4268 9554 

$$

Rogers

The office that day

Everything else NWS Sioux Falls, SD issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 22, 1:29 AM CDTSevere Thunderstorm WarningFSDLyon31 min
Jul 22, 1:57 AM CDTSevere Thunderstorm WarningFSDLyon, Sioux32 min
Jul 22, 2:37 PM CDTHeat AdvisoryFSDBuena Vista, Cherokee, Clay, Ida, O'Brien, Plymouth and 2 more24 hr

Nearby

Severe Thunderstorm Warnings in Iowa, 2022Every severe thunderstorm warning in 2022

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.