Alert archive / North Dakota / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 154, NWS Bismarck, ND
NWS Bismarck, ND issued this severe thunderstorm warning at Aug 30, 2021, 3:48 PM CDT for McLean County, North Dakota. It was in force for 42 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 30, 2021, 3:48 PM CDT (20:48 UTC)
- Expired
- Aug 30, 2021, 4:30 PM CDT
- In force
- 42 min
- Issued by
- NWS Bismarck, ND
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
County McLean County, ND
The radar
The Minot AFB radar (KMBX), 93 km from the middle of the area, began a volume at 20:50 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 30, 4:00 PM CDT | HAIL 1.25 | 5 Nnw Emmet, ND | REPORT FROM AUGUST 30 STORM. MULTIPLE VEHICLES WERE HAIL DAMAGED. CANOLA CROP NEARBY WAS SEVERELY DAMAGED. |
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 30, 1:38 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 12:00Z, 8.8 hours before the alert went out and 121 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
- 8 J/kg
- Mixed-layer CIN
- -262 J/kg
- Mixed-layer LCL
- 1949 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 93 m²/s²
- 0-3 km storm-relative helicity
- 131 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
567
WUUS53 KBIS 302048
SVRBIS
NDC055-302130-
/O.NEW.KBIS.SV.W.0154.210830T2048Z-210830T2130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Bismarck ND
348 PM CDT Mon Aug 30 2021
The National Weather Service in Bismarck has issued a
* Severe Thunderstorm Warning for...
North central McLean County in south central North Dakota...
* Until 430 PM CDT.
* At 348 PM CDT, a severe thunderstorm was located 8 miles east of
Roseglen, or 12 miles northwest of Garrison, moving east at 25 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...
Garrison and Max.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4765 10177 4779 10171 4784 10122 4753 10128
TIME...MOT...LOC 2048Z 270DEG 23KT 4772 10166
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
TELKEN3 follow-up statements
725
WWUS53 KBIS 302105
SVSBIS
Severe Weather Statement
National Weather Service Bismarck ND
405 PM CDT Mon Aug 30 2021
NDC055-302130-
/O.CON.KBIS.SV.W.0154.000000T0000Z-210830T2130Z/
McLean ND-
405 PM CDT Mon Aug 30 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CDT
FOR NORTH CENTRAL MCLEAN COUNTY...
At 405 PM CDT, a severe thunderstorm was located 5 miles northwest of
Garrison, moving east at 25 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Garrison, Fort Stevenson State Park and Emmet.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4765 10177 4774 10173 4779 10123 4753 10128
TIME...MOT...LOC 2105Z 270DEG 23KT 4772 10149
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
TELKEN229 WWUS53 KBIS 302115 SVSBIS Severe Weather Statement National Weather Service Bismarck ND 415 PM CDT Mon Aug 30 2021 NDC055-302130- /O.CON.KBIS.SV.W.0154.000000T0000Z-210830T2130Z/ McLean ND- 415 PM CDT Mon Aug 30 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CDT FOR NORTH CENTRAL MCLEAN COUNTY... At 415 PM CDT, a severe thunderstorm was located near Garrison, moving east at 25 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. Locations impacted include... Garrison, Fort Stevenson State Park and Emmet. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4764 10171 4773 10162 4775 10124 4753 10128 TIME...MOT...LOC 2115Z 270DEG 23KT 4772 10140 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...<50 MPH $$ TELKEN
106
WWUS53 KBIS 302125
SVSBIS
Severe Weather Statement
National Weather Service Bismarck ND
425 PM CDT Mon Aug 30 2021
NDC055-302135-
/O.EXP.KBIS.SV.W.0154.000000T0000Z-210830T2130Z/
McLean ND-
425 PM CDT Mon Aug 30 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL MCLEAN COUNTY
WILL EXPIRE AT 430 PM CDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However small hail
is still possible with this thunderstorm.
A Severe Thunderstorm Watch remains in effect until 700 PM CDT for
south central North Dakota.
LAT...LON 4764 10171 4773 10162 4775 10124 4753 10128
TIME...MOT...LOC 2125Z 270DEG 23KT 4772 10130
$$
TELKENThe office that day
Everything else NWS Bismarck, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 30, 10:51 AM CDT | Special Weather Statement | BIS | Oliver | 24 min |
| Aug 30, 10:54 AM CDT | Severe Thunderstorm Warning | BIS | Oliver | 36 min |
| Aug 30, 11:28 AM CDT | Severe Thunderstorm Warning | BIS | Oliver | 47 min |
| Aug 30, 11:33 AM CDT | Areal Flood Advisory | BIS | Oliver | 3 hr |
| Aug 30, 11:46 AM CDT | Flash Flood Warning | BIS | Oliver | 3 hr |
| Aug 30, 12:13 PM CDT | Severe Thunderstorm Warning | BIS | Morton, Oliver | 47 min |
| Aug 30, 12:58 PM CDT | Severe Thunderstorm Warning | BIS | Morton, Oliver | 47 min |
| Aug 30, 1:02 PM CDT | Severe Thunderstorm Warning | BIS | Mercer, Oliver | 43 min |
| Aug 30, 1:42 PM CDT | Severe Thunderstorm Warning | BIS | Morton, Oliver | 63 min |
| Aug 30, 1:44 PM CDT | Severe Thunderstorm Warning | BIS | Mercer, Oliver | 61 min |
| Aug 30, 2:17 PM CDT | Severe Thunderstorm Warning | BIS | Morton | 58 min |
| Aug 30, 3:15 PM CDT | Severe Thunderstorm Warning | BIS | Morton | 60 min |
| Aug 30, 4:16 PM CDT | Severe Thunderstorm Warning | BIS | Morton | 59 min |
| Aug 30, 4:32 PM CDT | Severe Thunderstorm Warning | BIS | Hettinger | 58 min |
| Aug 30, 4:43 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton | 47 min |
| Aug 30, 4:46 PM CDT | Areal Flood Advisory | BIS | Morton | 3 hr |
| Aug 30, 5:00 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton | 60 min |
| Aug 30, 5:28 PM CDT | Severe Thunderstorm Warning | BIS | Mercer, Oliver | 47 min |
| Aug 30, 5:29 PM CDT | Severe Thunderstorm Warning | BIS | Adams, Hettinger | 61 min |
| Aug 30, 5:43 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer | 47 min |
| Aug 30, 5:54 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton | 38 min |
| Aug 30, 6:02 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton, Sioux | 58 min |
| Aug 30, 6:30 PM CDT | Severe Thunderstorm Warning | BIS | Adams | 60 min |
| Aug 30, 6:49 PM CDT | Severe Thunderstorm Warning | BIS | Emmons, Grant, Morton, Sioux | 35 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.