Alert archive / Minnesota / Severe Thunderstorm Warnings in 2018
Severe Thunderstorm Warning 122, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Aug 26, 2018, 3:21 AM CDT for Benton County, Morrison County, Stearns County, Minnesota. It was in force for 39 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 26, 2018, 3:21 AM CDT (08:21 UTC)
- Expired
- Aug 26, 2018, 4:00 AM CDT
- In force
- 39 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 50.0 mph
Counties Benton County, MN, Morrison County, MN, Stearns County, MN
The radar
The Minneapolis radar (KMPX), 121 km from the middle of the area, began a volume at 08:23 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 26, 3:50 AM CDT | HAIL 1.5 | 2 Sse Gilman, MN |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 8.4 hours before the alert went out and 120 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
- 50 J/kg
- Mixed-layer CIN
- -418 J/kg
- Mixed-layer LCL
- 1061 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 58 m²/s²
- 0-3 km storm-relative helicity
- 84 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
817
WUUS53 KMPX 260821
SVRMPX
MNC009-097-145-260900-
/O.NEW.KMPX.SV.W.0122.180826T0821Z-180826T0900Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
321 AM CDT SUN AUG 26 2018
The National Weather Service in The Twin Cities has issued a
* Severe Thunderstorm Warning for...
Northern Benton County in central Minnesota...
Northeastern Stearns County in central Minnesota...
Southeastern Morrison County in central Minnesota...
* Until 400 AM CDT.
* At 320 AM CDT, severe thunderstorms were located along a line
extending from near Upsala to St Wendel, moving east at 40 mph.
HAZARD...Half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
* Locations impacted include...
Little Falls, Pierz, Royalton, Holdingford, Upsala, Bowlus, Rice,
Granite Ledge, Morrill, Buckman, Gilman and Little Rock.
This includes U.S. Highway 10 in Minnesota between mile markers 149
and 171.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.
&&
LAT...LON 4605 9418 4595 9381 4572 9377 4560 9437
4578 9463
TIME...MOT...LOC 0820Z 249DEG 37KT 4579 9453 4567 9437
HAIL...1.25IN
WIND...<50MPH
$$
JPC1 follow-up statement
534
WWUS53 KMPX 260844
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
344 AM CDT SUN AUG 26 2018
MNC145-260853-
/O.CAN.KMPX.SV.W.0122.000000T0000Z-180826T0900Z/
Stearns MN-
344 AM CDT SUN AUG 26 2018
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN STEARNS COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the severe thunderstorm warning for northeastern
Stearns county has been cancelled.
LAT...LON 4605 9418 4595 9381 4572 9377 4566 9405
4581 9428
TIME...MOT...LOC 0843Z 250DEG 39KT 4586 9420 4570 9396
$$
MNC009-097-260900-
/O.CON.KMPX.SV.W.0122.000000T0000Z-180826T0900Z/
Benton MN-Morrison MN-
344 AM CDT SUN AUG 26 2018
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 AM CDT
FOR NORTHEASTERN BENTON AND SOUTHEASTERN MORRISON COUNTIES...
At 343 AM CDT, severe thunderstorms were located along a line
extending from near Royalton to near Gilman, moving east at 45 mph.
HAZARD...Half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
Locations impacted include...
Pierz, Royalton, Granite Ledge, Morrill, Buckman, Gilman, Little
Rock, Genola, Mayhew and Rum River.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for large hail and deadly cloud to ground
lightning. Seek shelter inside a well-built structure. Stay away from
windows.
&&
LAT...LON 4605 9418 4595 9381 4572 9377 4566 9405
4581 9428
TIME...MOT...LOC 0843Z 250DEG 39KT 4586 9420 4570 9396
HAIL...1.25IN
WIND...<50MPH
$$
JPCThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 26, 1:40 AM CDT | Special Weather Statement | MPX | Douglas, Pope, Stevens | 50 min |
| Aug 26, 4:03 AM CDT | Severe Thunderstorm Warning | MPX | Benton, Chisago, Isanti, Kanabec, Mille Lacs | 57 min |
| Aug 26, 4:56 AM CDT | Special Weather Statement | MPX | Benton, Isanti, Kanabec, Mille Lacs, Sherburne | 64 min |
| Aug 26, 5:20 AM CDT | Severe Thunderstorm Warning | MPX | Isanti, Kanabec, Mille Lacs, Sherburne | 40 min |
| Aug 26, 5:47 AM CDT | Severe Thunderstorm Warning | MPX | Anoka, Chisago, Isanti | 43 min |
| Aug 26, 6:25 AM CDT | Severe Thunderstorm Warning | MPX | Anoka, Chisago, Washington | 50 min |
| Aug 26, 6:44 AM CDT | Special Weather Statement | MPX | Chisago | 31 min |
| Aug 26, 2:40 PM CDT | Special Weather Statement | MPX | Hennepin | 35 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2018Every severe thunderstorm warning in 2018
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.