Alert archive / North Dakota / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 149, NWS Bismarck, ND
NWS Bismarck, ND issued this severe thunderstorm warning at Aug 30, 2021, 1:02 PM CDT for Mercer County, Oliver County, North Dakota. It was in force for 43 min. 2 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
- Aug 30, 2021, 1:02 PM CDT (18:02 UTC)
- Expired
- Aug 30, 2021, 1:45 PM CDT
- In force
- 43 min
- Issued by
- NWS Bismarck, ND
- Area
- Storm-based polygon
- Hail
- 1.5 in
- Wind
- 60.0 mph
Counties Mercer County, ND, Oliver County, ND
The radar
The Bismarck radar (KBIS), 94 km from the middle of the area, began a volume at 18:02 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, 1:30 PM CDT | HAIL 1.5 | 3 W Hazen, ND | ON HIGHWAY 200 BETWEEN BEULAH AND HAZEN. RELAYED THROUGH BROADCAST MEDIA. |
| Aug 30, 1:45 PM CDT | HAIL 1.75 | 3 Nne Beulah, ND | REPORT FROM AUGUST 30TH. HAIL DAMAGE A PICKUP TRUCK. |
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, 6.0 hours before the alert went out and 98 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.
466
WUUS53 KBIS 301802
SVRBIS
NDC057-065-301845-
/O.NEW.KBIS.SV.W.0149.210830T1802Z-210830T1845Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Bismarck ND
102 PM CDT Mon Aug 30 2021
The National Weather Service in Bismarck has issued a
* Severe Thunderstorm Warning for...
Northwestern Oliver County in south central North Dakota...
Central Mercer County in south central North Dakota...
* Until 145 PM CDT.
* At 101 PM CDT, a severe thunderstorm was located near Hazen, or 5
miles northeast of Beulah, moving southeast at 10 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.
* This severe thunderstorm will be near...
Hazen around 115 PM CDT.
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
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4731 10188 4742 10178 4732 10144 4716 10165
TIME...MOT...LOC 1801Z 302DEG 9KT 4731 10168
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
SCHILD1 follow-up statement
359
WWUS53 KBIS 301822
SVSBIS
Severe Weather Statement
National Weather Service Bismarck ND
122 PM CDT Mon Aug 30 2021
NDC057-065-301845-
/O.CON.KBIS.SV.W.0149.000000T0000Z-210830T1845Z/
Oliver ND-Mercer ND-
122 PM CDT Mon Aug 30 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 145 PM CDT
FOR NORTHWESTERN OLIVER AND CENTRAL MERCER COUNTIES...
At 122 PM CDT, a severe thunderstorm was located over Hazen, or 7
miles east of Beulah, moving southeast at 10 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Hazen.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4732 10178 4740 10170 4732 10144 4716 10165
TIME...MOT...LOC 1822Z 302DEG 9KT 4728 10161
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
SCHILDThe 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, 1:42 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, 3:48 PM CDT | Severe Thunderstorm Warning | BIS | McLean | 42 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.