Alert archive / Minnesota / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 146, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 12, 2017, 12:10 AM CDT for Mille Lacs County, Morrison County, Minnesota. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 12, 2017, 12:10 AM CDT (05:10 UTC)
- Expired
- Jul 12, 2017, 12:45 AM CDT
- In force
- 35 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Mille Lacs County, MN, Morrison County, MN
The radar
The Duluth radar (KDLH), 137 km from the middle of the area, began a volume at 05:14 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 11, 10:00 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 5.2 hours before the alert went out and 140 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
- 913 J/kg
- Mixed-layer CIN
- -179 J/kg
- Mixed-layer LCL
- 1279 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 86 m²/s²
- 0-3 km storm-relative helicity
- 202 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 4.0
The text
As transmitted.
271
WUUS53 KMPX 120510
SVRMPX
MNC095-097-120545-
/O.NEW.KMPX.SV.W.0146.170712T0510Z-170712T0545Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
1210 AM CDT WED JUL 12 2017
The National Weather Service in The Twin Cities has issued a
* Severe Thunderstorm Warning for...
Northern Mille Lacs County in east central Minnesota...
East central Morrison County in central Minnesota...
* Until 1245 AM CDT
* At 1210 AM CDT, a severe thunderstorm was located near Onamia, or
15 miles south of Mille Lacs Lake, moving east at 35 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.
* This severe thunderstorm will be near,
Onamia around 1220 AM CDT.
Isle and Wahkon around 1230 AM CDT.
Other locations impacted by this severe thunderstorm include Bayview,
Lake Mille Lacs and Hillman.
This includes U.S. Highway 169 between mile markers 204 and 229.
This includes Grand Casino Mille Lacs.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4624 9343 4598 9343 4598 9352 4591 9352
4595 9395 4615 9386 4616 9381 4624 9381
4625 9374
TIME...MOT...LOC 0510Z 276DEG 32KT 4609 9377
HAIL...1.00IN
WIND...60MPH
$$
BORGHOFF1 follow-up statement
694
WWUS53 KMPX 120524
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1224 AM CDT WED JUL 12 2017
MNC097-120534-
/O.CAN.KMPX.SV.W.0146.000000T0000Z-170712T0545Z/
Morrison MN-
1224 AM CDT WED JUL 12 2017
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL MORRISON COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A severe thunderstorm watch remains in effect until 400 AM CDT for
central and east central Minnesota.
LAT...LON 4624 9343 4598 9343 4598 9352 4591 9352
4593 9377 4598 9377 4599 9381 4625 9369
TIME...MOT...LOC 0524Z 282DEG 27KT 4606 9362
$$
MNC095-120545-
/O.CON.KMPX.SV.W.0146.000000T0000Z-170712T0545Z/
Mille Lacs MN-
1224 AM CDT WED JUL 12 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT
FOR NORTHERN MILLE LACS COUNTY...
At 1224 AM CDT, a severe thunderstorm was located over Onamia, or 17
miles south of Mille Lacs Lake, moving east at 30 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.
This severe storm will be near...
Wahkon around 1230 AM CDT.
Isle around 1235 AM CDT.
Other locations impacted by this severe thunderstorm include Bayview
and Lake Mille Lacs.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4624 9343 4598 9343 4598 9352 4591 9352
4593 9377 4598 9377 4599 9381 4625 9369
TIME...MOT...LOC 0524Z 282DEG 27KT 4606 9362
HAIL...1.00IN
WIND...60MPH
$$
BORGHOFFThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 11, 11:02 PM CDT | Special Weather Statement | MPX | Swift | 28 min |
| Jul 11, 11:14 PM CDT | Severe Thunderstorm Warning | MPX | Douglas | 46 min |
| Jul 11, 11:27 PM CDT | Severe Thunderstorm Warning | MPX | Pope | 33 min |
| Jul 11, 11:59 PM CDT | Severe Thunderstorm Warning | MPX | Douglas, Pope, Stearns, Todd | 46 min |
| Jul 12, 12:45 AM CDT | Severe Thunderstorm Warning | MPX | Douglas, Pope, Stearns, Todd | 21 min |
| Jul 12, 12:46 AM CDT | Severe Thunderstorm Warning | MPX | Kanabec, Mille Lacs | 44 min |
| Jul 12, 1:44 AM CDT | Severe Thunderstorm Warning | MPX | Anoka, Benton, Isanti, Mille Lacs, Sherburne | 46 min |
| Jul 12, 2:27 AM CDT | Special Weather Statement | MPX | Anoka, Ramsey, Washington | 33 min |
| Jul 12, 2:48 AM CDT | Severe Thunderstorm Warning | MPX | Dakota, Ramsey, Washington | 27 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2017Every severe thunderstorm warning in 2017
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.