Alert archive / North Dakota / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 130, NWS Bismarck, ND

August 22, 2021Foster County, Pierce County, Wells County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Aug 22, 2021, 4:15 PM CDT for Foster County, Pierce County, Wells County, North Dakota. It was in force for 60 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: Aug 22, 2021, 4:15 PM CDT (21:15 UTC)
Expired: Aug 22, 2021, 5:15 PM CDT
In force: 60 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Tornado: Possible
Hail: 1.5 in
Wind: 60.0 mph

Counties Foster County, ND, Pierce County, ND, Wells County, ND

The radar

The Minot AFB radar (KMBX), 131 km from the middle of the area, began a volume at 21:15 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
Aug 22, 4:17 PM CDT	HAIL 1.75	Harvey, ND	PHOTO OF LARGE HAIL TAKEN BY THE PUBLIC WAS SUBMITTED BY KHND RADIO. HAIL HAD QUITE A FEW SPIKES ON IT. ONE INCH OF RAIN FELL WITH THE HAIL. TIME ESTIMATED BY RADAR.

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.

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

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 9.3 hours before the alert went out and 135 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: 1536 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 311 m²/s²
0-3 km storm-relative helicity: 445 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

528 
WUUS53 KBIS 222115
SVRBIS
NDC031-069-103-222215-
/O.NEW.KBIS.SV.W.0130.210822T2115Z-210822T2215Z/

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

The National Weather Service in Bismarck has issued a

* Severe Thunderstorm Warning for...
  Wells County in south central North Dakota...
  South central Pierce County in north central North Dakota...
  Foster County in southeastern North Dakota...

* Until 515 PM CDT.

* At 415 PM CDT, severe thunderstorms were located along a line
  extending from 8 miles southwest of Esmond to near Hurdsfield,
  moving northeast at 50 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.

* Locations impacted include...
  Fessenden.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4733 10003 4803 10006 4802 9981 4785 9981
      4785 9930 4759 9927 4759 9850 4733 9850
TIME...MOT...LOC 2115Z 236DEG 42KT 4795 9989 4743 10000 

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

$$

TELKEN

3 follow-up statements

720 
WWUS53 KBIS 222134
SVSBIS

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

NDC069-222143-
/O.CAN.KBIS.SV.W.0130.000000T0000Z-210822T2215Z/
Pierce ND-
434 PM CDT Sun Aug 22 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL PIERCE COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

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

LAT...LON 4733 9991 4765 9991 4785 9981 4785 9930
      4759 9927 4759 9850 4733 9850
TIME...MOT...LOC 2133Z 236DEG 42KT 4806 9965 4754 9977 

$$

NDC031-103-222215-
/O.CON.KBIS.SV.W.0130.000000T0000Z-210822T2215Z/
Wells ND-Foster ND-
434 PM CDT Sun Aug 22 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM CDT
FOR WELLS AND FOSTER COUNTIES...

At 433 PM CDT, severe thunderstorms were located along a line
extending from 5 miles east of Esmond to 9 miles northeast of
Hurdsfield, moving northeast at 50 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Carrington, Fessenden, Glenfield, Bordulac, Grace City, Mchenry,
Cathay, Bowdon, Sykeston, Heimdal, Bremen, Manfred, Chaseley,
Melville, Hamberg, Juanita, Wellsburg, Barlow, Emrick and Heaton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4733 9991 4765 9991 4785 9981 4785 9930
      4759 9927 4759 9850 4733 9850
TIME...MOT...LOC 2133Z 236DEG 42KT 4806 9965 4754 9977 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

TELKEN

652 
WWUS53 KBIS 222146
SVSBIS

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

NDC031-103-222215-
/O.CON.KBIS.SV.W.0130.000000T0000Z-210822T2215Z/
Wells ND-Foster ND-
446 PM CDT Sun Aug 22 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM CDT
FOR WELLS AND FOSTER COUNTIES...

At 446 PM CDT, severe thunderstorms were located along a line
extending from 10 miles south of Leeds to near Fessenden, moving
northeast at 50 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Carrington, Fessenden, Glenfield, Bordulac, Grace City, Mchenry,
Cathay, Bowdon, Sykeston, Heimdal, Bremen, Manfred, Melville,
Hamberg, Juanita, Barlow, Emrick and Heaton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4733 9976 4757 9978 4785 9975 4785 9930
      4759 9927 4759 9850 4733 9850
TIME...MOT...LOC 2146Z 236DEG 42KT 4814 9948 4762 9960 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

TELKEN

146 
WWUS53 KBIS 222204
SVSBIS

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

NDC031-103-222215-
/O.CON.KBIS.SV.W.0130.000000T0000Z-210822T2215Z/
Wells ND-Foster ND-
504 PM CDT Sun Aug 22 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM CDT
FOR EASTERN WELLS AND FOSTER COUNTIES...

At 504 PM CDT, severe thunderstorms were located along a line
extending from 9 miles east of Leeds to 11 miles west of New
Rockford, moving northeast at 50 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.

Locations impacted include...
Carrington, Fessenden, Bordulac, Grace City, Cathay, Sykeston,
Bremen, Melville, Hamberg, Emrick, Heaton and Barlow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4733 9970 4756 9968 4785 9961 4785 9930
      4759 9927 4759 9877 4733 9874
TIME...MOT...LOC 2204Z 236DEG 42KT 4824 9925 4772 9938 

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

$$

TELKEN

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, 5:13 PM CDT	Severe Thunderstorm Warning	BIS	Dickey	32 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.