Alert archive / North Dakota / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 120, NWS Bismarck, ND

July 23, 2021Dickey County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jul 23, 2021, 10:09 PM CDT for Dickey County, North Dakota. It was in force for 66 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: Jul 23, 2021, 10:09 PM CDT (03:09 UTC)
Expired: Jul 23, 2021, 11:15 PM CDT
In force: 66 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

County Dickey County, ND

The radar

The Aberdeen radar (KABR), 69 km from the middle of the area, began a volume at 03:08 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
Jul 23, 7:02 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 3.2 hours before the alert went out and 130 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: 3002 J/kg
Mixed-layer CIN: -46 J/kg
Mixed-layer LCL: 1613 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 53 m²/s²
0-3 km storm-relative helicity: 89 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 6.9

Open this sounding in Storm Lab

The text

As transmitted.

947 
WUUS53 KBIS 240309
SVRBIS
NDC021-240415-
/O.NEW.KBIS.SV.W.0120.210724T0309Z-210724T0415Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Bismarck ND
1009 PM CDT Fri Jul 23 2021

The National Weather Service in Bismarck has issued a

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

* Until 1115 PM CDT.

* At 1008 PM CDT, a severe thunderstorm was located 9 miles east of
  Ashley, moving east at 50 mph.

  HAZARD...60 mph wind gusts and nickel size hail.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Forbes and Ellendale.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4593 9801 4594 9901 4628 9900 4628 9801
TIME...MOT...LOC 0308Z 287DEG 43KT 4607 9919 

HAIL...0.88IN
WIND...60MPH
 
$$

Telken

2 follow-up statements

235 
WWUS53 KBIS 240401
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
1101 PM CDT Fri Jul 23 2021

NDC021-240415-
/O.CON.KBIS.SV.W.0120.000000T0000Z-210724T0415Z/
Dickey ND-
1101 PM CDT Fri Jul 23 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM CDT
FOR DICKEY COUNTY...

At 1101 PM CDT, a severe thunderstorm was located 7 miles west of
Hecla, or 13 miles southeast of Ellendale, moving east at 50 mph.

HAZARD...60 mph wind gusts and nickel size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Oakes, Ellendale, Fullerton, Forbes, Ludden, Monango, Guelph, Glover
and Merricourt.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4594 9879 4628 9879 4628 9801 4593 9801
TIME...MOT...LOC 0401Z 287DEG 43KT 4588 9831 

HAIL...0.88IN
WIND...60MPH
 
$$

Telken

906 
WWUS53 KBIS 240413
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
1113 PM CDT Fri Jul 23 2021

NDC021-240423-
/O.EXP.KBIS.SV.W.0120.000000T0000Z-210724T0415Z/
Dickey ND-
1113 PM CDT Fri Jul 23 2021

...THE SEVERE THUNDERSTORM WARNING FOR DICKEY COUNTY WILL EXPIRE AT
1115 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 small hail
and gusty winds are still possible with this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 200 AM CDT for
southeastern North Dakota.

LAT...LON 4594 9879 4628 9879 4628 9801 4593 9801
TIME...MOT...LOC 0413Z 287DEG 43KT 4585 9818 

$$

Telken

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 23, 7:26 PM CDT	Special Weather Statement	BIS	Grant	49 min
Jul 23, 7:31 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Sioux	32 min
Jul 23, 7:40 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton, Sioux	35 min
Jul 23, 8:20 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Grant, Sioux	55 min
Jul 23, 8:33 PM CDT	Special Weather Statement	BIS	Emmons	42 min
Jul 23, 9:10 PM CDT	Special Weather Statement	BIS	Emmons, Logan, McIntosh	65 min
Jul 23, 9:30 PM CDT	Severe Thunderstorm Warning	BIS	Emmons, Logan, McIntosh	60 min
Jul 23, 11:22 PM CDT	Special Weather Statement	BIS	Dickey	38 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.