Alert archive / Montana / Tornado Warnings in 2021
Tornado Warning 3, NWS Glasgow, MT
NWS Glasgow, MT issued this tornado warning at Jun 10, 2021, 7:52 PM MDT for Daniels County, Roosevelt County, Valley County, Montana. It was in force for 26 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
- Jun 10, 2021, 7:52 PM MDT (01:52 UTC)
- Expired
- Jun 10, 2021, 8:18 PM MDT
- In force
- 26 min
- Issued by
- NWS Glasgow, MT
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.0 in
Counties Daniels County, MT, Roosevelt County, MT, Valley County, MT
The radar
The Glasgow radar (KGGW), 69 km from the middle of the area, began a volume at 01:53 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 |
|---|---|---|---|
| Jun 10, 8:01 PM MDT | HAIL 1 | Lustre, MT | PEA TO QUARTER SIZED HAIL. TIME ESTIMATED FROM RADAR. STORM TOTAL RAINFALL OF 4 INCHES THROUGH FRIDAY MORNING. FROM SOCIAL MEDIA. |
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 |
|---|---|---|---|
| Jun 10, 2:30 PM MDT | Tornado Watch | SPC | 6 hr |
| Jun 10, 2:52 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 1.9 hours before the alert went out and 67 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
- 1762 J/kg
- Mixed-layer CIN
- -194 J/kg
- Mixed-layer LCL
- 1872 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 15 m²/s²
- 0-3 km storm-relative helicity
- 262 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.5
The text
As transmitted.
332
WFUS55 KGGW 110152
TORGGW
MTC019-085-105-110245-
/O.NEW.KGGW.TO.W.0003.210611T0152Z-210611T0245Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Glasgow MT
752 PM MDT Thu Jun 10 2021
The National Weather Service in Glasgow has issued a
* Tornado Warning for...
South central Daniels County in northeastern Montana...
Northwestern Roosevelt County in northeastern Montana...
East central Valley County in northeastern Montana...
* Until 845 PM MDT.
* At 752 PM MDT, a severe thunderstorm capable of producing a tornado
was located near Lustre, or 19 miles northwest of Wolf Point,
moving northeast at 25 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* This tornadic thunderstorm will remain over mainly rural areas of
south central Daniels, northwestern Roosevelt and east central
Valley Counties, including the following locations... Volt.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4827 10586 4834 10595 4870 10568 4853 10538
TIME...MOT...LOC 0152Z 215DEG 21KT 4835 10582
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
NWS Glasgow
rux1 follow-up statement
182
WWUS55 KGGW 110218
SVSGGW
Severe Weather Statement
National Weather Service Glasgow MT
818 PM MDT Thu Jun 10 2021
MTC019-085-105-110226-
/O.CAN.KGGW.TO.W.0003.000000T0000Z-210611T0245Z/
Daniels MT-Roosevelt MT-Valley MT-
818 PM MDT Thu Jun 10 2021
...THE TORNADO WARNING FOR SOUTH CENTRAL DANIELS...NORTHWESTERN
ROOSEVELT AND EAST CENTRAL VALLEY COUNTIES IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been cancelled. However hail, gusty
winds and heavy rain are still possible with this thunderstorm.
A Tornado Watch remains in effect until 900 PM MDT for northeastern
Montana.
A Severe Thunderstorm Watch remains in effect until 1000 PM MDT for
northeastern Montana.
Remember, a Severe Thunderstorm Warning still remains in effect for
Daniels County, Northwestern Roosevelt County and Northeastern
Valley County.
LAT...LON 4827 10586 4834 10595 4870 10568 4853 10538
TIME...MOT...LOC 0215Z 215DEG 21KT 4847 10570
$$
NWS Glasgow
ruxThe office that day
Everything else NWS Glasgow, MT issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 10, 6:24 PM MDT | Areal Flood Advisory | GGW | Richland, Wibaux | 2 hr |
| Jun 10, 6:40 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, Richland, Wibaux | 65 min |
| Jun 10, 6:54 PM MDT | Special Weather Statement | GGW | Garfield | 51 min |
| Jun 10, 7:22 PM MDT | Severe Thunderstorm Warning | GGW | Daniels, Roosevelt, Valley | 53 min |
| Jun 10, 7:30 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, Garfield, McCone, Prairie | 60 min |
| Jun 10, 7:42 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, Richland, Wibaux | 40 min |
| Jun 10, 7:57 PM MDT | Areal Flood Advisory | GGW | Daniels, Roosevelt, Valley | 98 min |
| Jun 10, 8:09 PM MDT | Severe Thunderstorm Warning | GGW | Daniels, Roosevelt, Sheridan, Valley | 32 min |
| Jun 10, 8:23 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, McCone, Richland | 67 min |
| Jun 10, 8:37 PM MDT | Severe Thunderstorm Warning | GGW | Daniels, Roosevelt, Valley | 33 min |
| Jun 10, 9:03 PM MDT | Severe Thunderstorm Warning | GGW | Dawson, McCone, Richland, Roosevelt | 57 min |
| Jun 10, 9:05 PM MDT | Special Weather Statement | GGW | Daniels, Roosevelt, Sheridan | 40 min |
| Jun 10, 9:15 PM MDT | Severe Thunderstorm Warning | GGW | Richland, Roosevelt | 60 min |
| Jun 10, 9:48 PM MDT | Severe Thunderstorm Warning | GGW | Daniels, Roosevelt, Sheridan | 57 min |
Nearby
Tornado Warnings in Montana, 2021Every tornado warning in 2021Tornadoes 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.