Alert archive / Minnesota / Severe Thunderstorm Watches in 2018
Severe Thunderstorm Watch 272
The Storm Prediction Center issued this severe thunderstorm watch at Jul 12, 2018, 12:57 AM CDT for 8 counties in Minnesota; 5 counties in Wisconsin. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 12, 2018, 12:57 AM CDT (05:57 UTC)
- Expired
- Jul 12, 2018, 7:00 AM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 60 kt
Counties Aitkin County, MN, Carlton County, MN, Cass County, MN, Crow Wing County, MN, Itasca County, MN, Lake County, MN, Pine County, MN, Saint Louis County, MN, Bayfield County, WI, Burnett County, WI, Douglas County, WI, Sawyer County, WI, Washburn County, WI
The radar
The Duluth radar (KDLH), 40 km from the middle of the area, began a volume at 05:56 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 SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 10%
- One or more EF2 to EF5 tornadoes
- 2%
- Ten or more severe wind reports
- 40%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 20%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 60%
Warnings issued inside it
10 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 1:16 AM CDT | Severe Thunderstorm Warning | DLH | Cass, Crow Wing | 29 min |
| Jul 12, 1:27 AM CDT | Severe Thunderstorm Warning | DLH | Aitkin, Carlton, Itasca, Saint Louis | 48 min |
| Jul 12, 1:56 AM CDT | Severe Thunderstorm Warning | DLH | Aitkin, Cass, Crow Wing | 49 min |
| Jul 12, 2:19 AM CDT | Flash Flood Warning | DLH | Aitkin, Cass, Crow Wing, Itasca | 4 hr |
| Jul 12, 2:22 AM CDT | Severe Thunderstorm Warning | DLH | Saint Louis | 38 min |
| Jul 12, 2:41 AM CDT | Severe Thunderstorm Warning | DLH | Aitkin, Carlton, Cass, Crow Wing | 49 min |
| Jul 12, 3:00 AM CDT | Flash Flood Warning | DLH | Aitkin, Carlton, Cass, Crow Wing, Pine, Saint Louis | 3 hr |
| Jul 12, 4:20 AM CDT | Flash Flood Warning | DLH | Pine | 5 hr |
| Jul 12, 5:57 AM CDT | Flash Flood Warning | DLH | Aitkin, Crow Wing, Pine | 4 hr |
| Jul 12, 6:28 AM CDT | Severe Thunderstorm Warning | DLH | Pine | 13 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 11, 8:58 PM CDT | Mesoscale Discussion | SPC | Aitkin, Becker, Beltrami, Cass, Clay, Clearwater and 12 more | 2 hr |
| Jul 11, 11:42 PM CDT | Mesoscale Discussion | SPC | Aitkin, Becker, Carlton, Cass, Crow Wing, Hubbard and 10 more | 2 hr |
| Jul 12, 4:47 PM CDT | Mesoscale Discussion | SPC | Anoka, Blue Earth, Brown, Carver, Cottonwood, Dakota and 31 more | 88 min |
| Jul 12, 5:04 PM CDT | Severe Thunderstorm Watch | SPC | Anoka, Blue Earth, Brown, Carver, Chisago, Cottonwood and 30 more | 7 hr |
Nearby
Severe Thunderstorm Watches in Minnesota, 2018Severe Thunderstorm Watches in Wisconsin, 2018Every severe thunderstorm watch 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; radar from the NEXRAD Level II archive.