Alert archive / North Dakota / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 101, NWS Bismarck, ND

July 16, 2021Renville County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jul 16, 2021, 5:40 AM CDT for Renville County, North Dakota. It was in force for 35 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 16, 2021, 5:40 AM CDT (10:40 UTC)
Expired: Jul 16, 2021, 6:15 AM CDT
In force: 35 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Hail: 1.25 in
Wind: 50.0 mph

County Renville County, ND

The radar

The Minot AFB radar (KMBX), 78 km from the middle of the area, began a volume at 10:44 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 nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 10.7 hours before the alert went out and 238 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: 13 J/kg
Mixed-layer CIN: -128 J/kg
Mixed-layer LCL: 2470 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 43 m²/s²
0-3 km storm-relative helicity: 121 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

996 
WUUS53 KBIS 161040
SVRBIS
NDC075-161115-
/O.NEW.KBIS.SV.W.0101.210716T1040Z-210716T1115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Bismarck ND
540 AM CDT Fri Jul 16 2021

The National Weather Service in Bismarck has issued a

* Severe Thunderstorm Warning for...
  Northwestern Renville County in north central North Dakota...

* Until 615 AM CDT.

* At 539 AM CDT, a severe thunderstorm was located 11 miles northwest
  of Greene, or 13 miles west of Mohall, moving northeast at 15 mph.

  HAZARD...Half dollar size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to vehicles is expected.

* Locations impacted include...
  Rural central Renville County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4871 10149 4868 10179 4870 10185 4872 10185
      4872 10188 4885 10197 4900 10185 4900 10153
TIME...MOT...LOC 1039Z 225DEG 11KT 4881 10181 

HAIL...1.25IN
WIND...<50MPH
 
$$

HEINERT

2 follow-up statements

881 
WWUS53 KBIS 161058
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
558 AM CDT Fri Jul 16 2021

NDC075-161115-
/O.CON.KBIS.SV.W.0101.000000T0000Z-210716T1115Z/
Renville ND-
558 AM CDT Fri Jul 16 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 AM CDT
FOR NORTHWESTERN RENVILLE COUNTY...

At 557 AM CDT, a severe thunderstorm was located 9 miles southwest of
Sherwood, or 16 miles northwest of Mohall, moving northeast at 20
mph.

HAZARD...Half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is expected.

Locations impacted include...
Mohall, Sherwood, Tolley and Loraine. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with this storm, and may lead to 
flooding of low lying areas. 

&&

LAT...LON 4871 10149 4868 10179 4870 10185 4872 10185
      4872 10188 4885 10193 4900 10185 4900 10153
TIME...MOT...LOC 1057Z 233DEG 17KT 4889 10182 

HAIL...1.25IN
WIND...<50MPH
 
$$

HEINERT

343 
WWUS53 KBIS 161113
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
613 AM CDT Fri Jul 16 2021

NDC075-161122-
/O.EXP.KBIS.SV.W.0101.000000T0000Z-210716T1115Z/
Renville ND-
613 AM CDT Fri Jul 16 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN RENVILLE COUNTY
WILL EXPIRE AT 615 AM CDT...
                
The storm which prompted the warning has weakened below severe 
limits, and no longer poses an immediate threat. Therefore, the 
warning will be allowed to expire.  However heavy rain is still 
possible with this thunderstorm.

LAT...LON 4871 10149 4868 10179 4870 10185 4872 10185
      4872 10188 4885 10193 4900 10185 4900 10153
TIME...MOT...LOC 1112Z 225DEG 11KT 4892 10177 

$$

HEINERT

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 16, 5:12 AM CDT	Special Weather Statement	BIS	Renville	33 min
Jul 16, 6:58 AM CDT	Areal Flood Advisory	BIS	Ward	2 hr
Jul 16, 7:54 AM CDT	Special Weather Statement	BIS	Ward	36 min
Jul 16, 8:30 AM CDT	Special Weather Statement	BIS	Ward	45 min
Jul 16, 9:57 AM CDT	Special Weather Statement	BIS	McLean	18 min
Jul 16, 12:16 PM CDT	Special Weather Statement	BIS	Burleigh	29 min
Jul 16, 1:01 PM CDT	Special Weather Statement	BIS	Kidder	29 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.