Alert archive / North Dakota / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 131, NWS Bismarck, ND

August 22, 2021Dickey County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Aug 22, 2021, 5:13 PM CDT for Dickey County, North Dakota. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 22, 2021, 5:13 PM CDT (22:13 UTC)
Expired: Aug 22, 2021, 5:45 PM CDT
In force: 32 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

County Dickey County, ND

The radar

The Aberdeen radar (KABR), 81 km from the middle of the area, began a volume at 22:17 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Aug 22, 3:36 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 10.2 hours before the alert went out and 141 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: 1388 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 135 m²/s²
0-3 km storm-relative helicity: 261 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

846 
WUUS53 KBIS 222213
SVRBIS
NDC021-222245-
/O.NEW.KBIS.SV.W.0131.210822T2213Z-210822T2245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Bismarck ND
513 PM CDT Sun Aug 22 2021

The National Weather Service in Bismarck has issued a

* Severe Thunderstorm Warning for...
  Western Dickey County in southeastern North Dakota...

* Until 545 PM CDT.

* At 512 PM CDT, a severe thunderstorm was located 5 miles northwest
  of Forbes, or 16 miles west of Ellendale, moving northeast at 45
  mph.

  HAZARD...Ping pong ball size hail and 60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           wind damage to roofs, siding, and trees.

* This severe thunderstorm will remain over mainly rural areas of
  western Dickey County, including the following locations... Monango
  and Merricourt.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4628 9886 4628 9832 4594 9868 4594 9901
TIME...MOT...LOC 2212Z 206DEG 38KT 4599 9887 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

HAMILTON

2 follow-up statements

669 
WWUS53 KBIS 222227
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
527 PM CDT Sun Aug 22 2021

NDC021-222245-
/O.CON.KBIS.SV.W.0131.000000T0000Z-210822T2245Z/
Dickey ND-
527 PM CDT Sun Aug 22 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM CDT
FOR NORTHWESTERN DICKEY COUNTY...

At 527 PM CDT, a severe thunderstorm was located 13 miles west of
Fullerton, or 13 miles northwest of Ellendale, moving northeast at 50
mph.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Monango and Merricourt. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.

&&

LAT...LON 4628 9873 4628 9832 4605 9862 4610 9884
TIME...MOT...LOC 2227Z 209DEG 41KT 4615 9870 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

HAMILTON

963 
WWUS53 KBIS 222243
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
543 PM CDT Sun Aug 22 2021

NDC021-222253-
/O.EXP.KBIS.SV.W.0131.000000T0000Z-210822T2245Z/
Dickey ND-
543 PM CDT Sun Aug 22 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN DICKEY COUNTY
WILL EXPIRE AT 545 PM CDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

A Severe Thunderstorm Watch remains in effect until 900 PM CDT for
southeastern North Dakota.

LAT...LON 4628 9873 4628 9832 4605 9862 4610 9884
TIME...MOT...LOC 2243Z 206DEG 38KT 4628 9861 

$$

HAMILTON

The office that day

Everything else NWS Bismarck, ND issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 22, 9:40 AM CDT	Wind Advisory	BIS	Adams, Billings, Bottineau, Bowman, Burleigh, Dickey and 22 more	10 hr
Aug 22, 4:15 PM CDT	Severe Thunderstorm Warning	BIS	Foster, Pierce, Wells	60 min
Aug 22, 5:14 PM CDT	Severe Thunderstorm Warning	BIS	Foster, Wells	61 min
Aug 22, 6:01 PM CDT	Special Weather Statement	BIS	LaMoure	14 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.