Alert archive / North Dakota / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 108, NWS Bismarck, ND
NWS Bismarck, ND issued this severe thunderstorm warning at Jul 19, 2021, 5:28 PM CDT for McHenry County, Pierce County, North Dakota. It was in force for 62 min. 7 reports 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 19, 2021, 5:28 PM CDT (22:28 UTC)
- Expired
- Jul 19, 2021, 6:30 PM CDT
- In force
- 62 min
- Issued by
- NWS Bismarck, ND
- Area
- Storm-based polygon
- Hail
- 1.75 in
- Wind
- 60.0 mph
Counties McHenry County, ND, Pierce County, ND
The radar
The Minot AFB radar (KMBX), 65 km from the middle of the area, began a volume at 22:29 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 19, 5:45 PM CDT | HAIL 2 | 10 S Berwick, ND | RELAYED BY BROADCAST MEDIA. TIME ESTIMATED FROM RADAR. |
| Jul 19, 6:22 PM CDT | TSTM WND GST 60 | 4 Nnw George Lake, ND | |
| Jul 19, 6:30 PM CDT | TSTM WND DMG | 5 Nw George Lake, ND | 70 MPH WIND GUSTS AND PING PONG BALL SIZE HAIL CAUSED A VARIETY OF DAMAGE. WINDOW SCREENS WERE SHREDDED, SOME WINDOWS WERE BROKEN, SIDING WAS DAMAGED ON HOUSE AND CAMPER. IN ADDITION, NEARBY POTATO FIELD WAS SHREDDED, AND CORN WAS ABOUT 50 PERCENT DAMAGED. 1.7 |
| Jul 19, 6:30 PM CDT | TSTM WND DMG | 7 Ne Karlsruhe, ND | COTTONWOOD TREES BLOWN OVER. SAME INDIVIDUAL REPORTED THE GROUND WAS WHITE WITH HAIL 4 MILES EAST OF KARLSRUHE, AND ALL HIS HAY THERE WAS BLOWN WAY. REPORT WAS RELAYED TO THE NWS BY A BROADCAST MEDIA PARTNER. |
| Jul 19, 6:30 PM CDT | HAIL 1.75 | 7 Ne Karlsruhe, ND | RELAYED BY BROADCAST MEDIA PARTNER. MOST HAIL WAS SMALLER, BUT WERE A FEW GOLF BALLS. |
| Jul 19, 6:35 PM CDT | TSTM WND GST 70 | 5 Nw George Lake, ND | |
| Jul 19, 6:35 PM CDT | HAIL 1.5 | 5 Nw George Lake, ND |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 12:00Z, 10.5 hours before the alert went out and 166 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.
- Mixed-layer CAPE
- 1332 J/kg
- Mixed-layer CIN
- -233 J/kg
- Mixed-layer LCL
- 1421 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- -9 m²/s²
- 0-3 km storm-relative helicity
- 49 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted.
074
WUUS53 KBIS 192228
SVRBIS
NDC049-069-192330-
/O.NEW.KBIS.SV.W.0108.210719T2228Z-210719T2330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Bismarck ND
528 PM CDT Mon Jul 19 2021
The National Weather Service in Bismarck has issued a
* Severe Thunderstorm Warning for...
Southwestern Pierce County in north central North Dakota...
East central McHenry County in north central North Dakota...
* Until 630 PM CDT.
* At 528 PM CDT, a severe thunderstorm was located 9 miles northwest
of Balta, or 13 miles southwest of Rugby, moving southeast at 10
mph.
HAZARD...Golf 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...
Rugby, Towner, Balta, Berwick, Silva, Orrin and George Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4837 9984 4836 9985 4802 9985 4802 9983
4800 9983 4803 10018 4815 10059 4844 10058
TIME...MOT...LOC 2228Z 299DEG 8KT 4824 10022
HAIL...1.75IN
WIND...60MPH
$$
EDWARDS3 follow-up statements
973
WWUS53 KBIS 192246
SVSBIS
Severe Weather Statement
National Weather Service Bismarck ND
546 PM CDT Mon Jul 19 2021
NDC049-069-192330-
/O.CON.KBIS.SV.W.0108.000000T0000Z-210719T2330Z/
Pierce ND-McHenry ND-
546 PM CDT Mon Jul 19 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM CDT
FOR CENTRAL PIERCE AND EAST CENTRAL MCHENRY COUNTIES...
At 544 PM CDT, severe thunderstorms were located along a line
extending from 11 miles north of Esmond to 8 miles west of Balta to 4
miles southwest of Denbigh, moving southeast at 10 mph.
HAZARD...Golf ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles. Expect wind
damage to roofs, siding, and trees.
Locations impacted include...
Rugby, Towner, Balta, Berwick, Silva, Orrin and George Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4837 9984 4836 9985 4802 9985 4802 9983
4800 9983 4803 10018 4815 10059 4844 10058
TIME...MOT...LOC 2244Z 313DEG 8KT 4820 9979 4818 10021 4827 10066
HAIL...1.75IN
WIND...60MPH
$$
EDWARDS264
WWUS53 KBIS 192258
SVSBIS
Severe Weather Statement
National Weather Service Bismarck ND
558 PM CDT Mon Jul 19 2021
NDC049-069-192330-
/O.CON.KBIS.SV.W.0108.000000T0000Z-210719T2330Z/
Pierce ND-McHenry ND-
558 PM CDT Mon Jul 19 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM CDT
FOR CENTRAL PIERCE AND EAST CENTRAL MCHENRY COUNTIES...
At 557 PM CDT, severe thunderstorms were located along a line
extending from 7 miles north of Esmond to 10 miles west of Balta to 4
miles southwest of Denbigh, moving southeast at 10 mph.
HAZARD...Two inch 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...
Towner, Balta, Orrin, Silva and George Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4802 9985 4802 9983 4800 9983 4803 10018
4815 10059 4839 10058 4832 9985
TIME...MOT...LOC 2257Z 312DEG 7KT 4814 9982 4815 10025 4826 10063
HAIL...2.00IN
WIND...60MPH
$$
EDWARDS553
WWUS53 KBIS 192309
SVSBIS
Severe Weather Statement
National Weather Service Bismarck ND
609 PM CDT Mon Jul 19 2021
NDC049-069-192330-
/O.CON.KBIS.SV.W.0108.000000T0000Z-210719T2330Z/
Pierce ND-McHenry ND-
609 PM CDT Mon Jul 19 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM CDT
FOR WEST CENTRAL PIERCE AND EAST CENTRAL MCHENRY COUNTIES...
At 608 PM CDT, a severe thunderstorm was located 10 miles east of
Karlsruhe, or 24 miles southwest of Rugby, moving south at 10 mph.
This is a very dangerous storm.
HAZARD...Baseball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...People and animals outdoors will be severely injured.
Expect shattered windows, extensive damage to roofs,
siding, and vehicles.
Locations impacted include...
Orrin and George Lake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
This is a dangerous storm. Prepare immediately for large destructive
hail capable of producing significant damage. People outside should
move to a shelter, inside a strong building and away from windows.
&&
LAT...LON 4830 10058 4821 10008 4803 10013 4803 10018
4815 10059
TIME...MOT...LOC 2308Z 016DEG 9KT 4815 10041
HAIL...2.75IN
WIND...60MPH
$$
EDWARDSThe office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 4:23 AM CDT | Heat Advisory | BIS | Billings, Burleigh, Divide, Dunn, Golden Valley, McHenry and 8 more | 17 hr |
| Jul 19, 9:03 AM CDT | Special Weather Statement | BIS | Rolette | 42 min |
| Jul 19, 6:26 PM CDT | Severe Thunderstorm Warning | BIS | McHenry | 64 min |
| Jul 19, 6:44 PM CDT | Severe Thunderstorm Warning | BIS | Rolette | 36 min |
Nearby
Severe Thunderstorm Warnings in North Dakota, 2021Every 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.