Alert archive / Minnesota / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 79, NWS Aberdeen, SD

July 25, 2021Traverse County, Minnesota

NWS Aberdeen, SD issued this severe thunderstorm warning at Jul 25, 2021, 10:04 PM CDT for Traverse County, Minnesota. It was in force for 26 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: Jul 25, 2021, 10:04 PM CDT (03:04 UTC)
Expired: Jul 25, 2021, 10:30 PM CDT
In force: 26 min
Issued by: NWS Aberdeen, SD
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

County Traverse County, MN

The radar

The Aberdeen radar (KABR), 159 km from the middle of the area, began a volume at 03:07 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
Jul 25, 10:04 PM CDT	HAIL 1	1 E Wheaton, MN	RADAR ESTIMATED TIME.

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

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 3.1 hours before the alert went out and 182 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: 1771 J/kg
Mixed-layer CIN: -59 J/kg
Mixed-layer LCL: 2015 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 114 m²/s²
0-3 km storm-relative helicity: 380 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 31.3

Open this sounding in Storm Lab

The text

As transmitted.

090 
WUUS53 KABR 260304
SVRABR
MNC155-260330-
/O.NEW.KABR.SV.W.0079.210726T0304Z-210726T0330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Aberdeen SD
1004 PM CDT Sun Jul 25 2021

The National Weather Service in Aberdeen has issued a

* Severe Thunderstorm Warning for...
  East central Traverse County in west central Minnesota...

* Until 1030 PM CDT.

* At 1004 PM CDT, a severe thunderstorm was located near Wheaton,
  moving east at 35 mph.

  HAZARD...Quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to vehicles is expected.

* This severe thunderstorm will remain over mainly rural areas of
  east central Traverse County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Aberdeen.

&&

LAT...LON 4569 9651 4585 9656 4588 9625 4568 9625
TIME...MOT...LOC 0304Z 267DEG 29KT 4577 9645 

HAIL...1.00IN
WIND...<50MPH
 
$$

Parkin

1 follow-up statement

286 
WWUS53 KABR 260328
SVSABR

Severe Weather Statement
National Weather Service Aberdeen SD
1028 PM CDT Sun Jul 25 2021

MNC155-260338-
/O.EXP.KABR.SV.W.0079.000000T0000Z-210726T0330Z/
Traverse MN-
1028 PM CDT Sun Jul 25 2021

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL TRAVERSE COUNTY
WILL EXPIRE AT 1030 PM CDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.

LAT...LON 4569 9651 4585 9656 4588 9625 4568 9625
TIME...MOT...LOC 0328Z 267DEG 29KT 4578 9623 

$$

Parkin

Nearby

Severe Thunderstorm Warnings in Minnesota, 2021 Every severe thunderstorm warning 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.