Alert archive / Minnesota / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 107, NWS Twin Cities, MN
NWS Twin Cities, MN issued this severe thunderstorm warning at Jul 6, 2017, 4:34 AM CDT for 5 counties in Minnesota. It was in force for 26 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 6, 2017, 4:34 AM CDT (09:34 UTC)
- Expired
- Jul 6, 2017, 5:00 AM CDT
- In force
- 26 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Benton County, MN, Isanti County, MN, Kanabec County, MN, Mille Lacs County, MN, Morrison County, MN
The radar
The Minneapolis radar (KMPX), 129 km from the middle of the area, began a volume at 09:33 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 6, 3:26 AM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 9.6 hours before the alert went out and 129 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
- 2692 J/kg
- Mixed-layer CIN
- -41 J/kg
- Mixed-layer LCL
- 1493 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 63 m²/s²
- 0-3 km storm-relative helicity
- 136 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 4.7
The text
As transmitted.
050
WUUS53 KMPX 060934
SVRMPX
MNC009-059-065-095-097-061000-
/O.NEW.KMPX.SV.W.0107.170706T0934Z-170706T1000Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Twin Cities/Chanhassen MN
434 AM CDT THU JUL 6 2017
The National Weather Service in The Twin Cities has issued a
* Severe Thunderstorm Warning for...
Kanabec County in east central Minnesota...
Mille Lacs County in east central Minnesota...
Northwestern Isanti County in east central Minnesota...
Northeastern Benton County in central Minnesota...
Southeastern Morrison County in central Minnesota...
* Until 500 AM CDT
* At 434 AM CDT, severe thunderstorms were located along a line
extending from near Mcgrath to 8 miles southeast of Onamia to Rum
River, moving southeast at 55 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.
* Severe thunderstorms will be near,
Mora and Bock around 450 AM CDT.
Grasston and Quamba around 455 AM CDT.
Other locations impacted by these severe thunderstorms include
Grandy, Mora Airport, Morrill, Warman, Dalbo, Knife Lake, Granite
Ledge, Rum River, Stanchfield and Lewis Lake.
This includes U.S. Highway 169 between mile markers 188 and 211.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Large hail and damaging winds and continuous cloud to ground
lightning is occurring with these storms. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.
&&
LAT...LON 4615 9343 4615 9306 4598 9306 4598 9314
4565 9314 4559 9322 4582 9406 4603 9367
4625 9353 4624 9343
TIME...MOT...LOC 0934Z 293DEG 47KT 4624 9334 4599 9352 4580 9382
HAIL...1.00IN
WIND...60MPH
$$
SPD1 follow-up statement
640
WWUS53 KMPX 060959
SVSMPX
Severe Weather Statement
National Weather Service Twin Cities/Chanhassen MN
459 AM CDT THU JUL 6 2017
MNC009-059-065-095-097-061009-
/O.EXP.KMPX.SV.W.0107.000000T0000Z-170706T1000Z/
Kanabec MN-Mille Lacs MN-Isanti MN-Benton MN-Morrison MN-
459 AM CDT THU JUL 6 2017
...THE SEVERE THUNDERSTORM WARNING FOR KANABEC...MILLE LACS...
NORTHWESTERN ISANTI...NORTHEASTERN BENTON AND SOUTHEASTERN MORRISON
COUNTIES WILL EXPIRE AT 500 AM CDT...
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore the warning will
be allowed to expire. However gusty winds are still possible with
these thunderstorms.
A severe thunderstorm watch remains in effect until 1100 AM CDT for
central and east central Minnesota.
LAT...LON 4615 9343 4615 9306 4598 9306 4598 9314
4565 9314 4559 9322 4582 9406 4603 9367
4625 9353 4624 9343
TIME...MOT...LOC 0959Z 293DEG 47KT 4611 9291 4586 9309 4567 9339
$$
SPDThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 6, 1:28 AM CDT | Severe Thunderstorm Warning | MPX | Kanabec | 32 min |
| Jul 6, 1:59 AM CDT | Severe Thunderstorm Warning | MPX | Kanabec | 31 min |
| Jul 6, 2:28 AM CDT | Severe Thunderstorm Warning | MPX | Kanabec | 62 min |
| Jul 6, 2:43 AM CDT | Special Weather Statement | MPX | Douglas | 32 min |
| Jul 6, 3:20 AM CDT | Special Weather Statement | MPX | Kanabec | 3 hr |
| Jul 6, 3:27 AM CDT | Flash Flood Warning | MPX | Kanabec | 3 hr |
| Jul 6, 3:38 AM CDT | Special Weather Statement | MPX | Todd | 67 min |
| Jul 6, 3:48 AM CDT | Severe Thunderstorm Warning | MPX | Kanabec | 57 min |
| Jul 6, 4:26 AM CDT | Severe Thunderstorm Warning | MPX | Kanabec | 11 min |
| Jul 6, 4:47 AM CDT | Special Weather Statement | MPX | Benton, Sherburne, Stearns | 28 min |
| Jul 6, 5:37 AM CDT | Severe Thunderstorm Warning | MPX | Chisago | 38 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.