Alert archive / Minnesota / Severe Thunderstorm Watches in 2014
Severe Thunderstorm Watch 337
The Storm Prediction Center issued this severe thunderstorm watch at Jun 20, 2014, 3:18 PM CDT for 47 counties in Minnesota; 6 counties in North Dakota; Roberts County, South Dakota. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 20, 2014, 3:18 PM CDT (20:18 UTC)
- Expired
- Jun 20, 2014, 8:54 PM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 60 kt
All 54 counties
Aitkin County, MN, Anoka County, MN, Becker County, MN, Beltrami County, MN, Benton County, MN, Big Stone County, MN, Carver County, MN, Cass County, MN, Chisago County, MN, Clay County, MN, Clearwater County, MN, Crow Wing County, MN, Douglas County, MN, Grant County, MN, Hennepin County, MN, Hubbard County, MN, Isanti County, MN, Itasca County, MN, Kanabec County, MN, Kandiyohi County, MN, Kittson County, MN, Koochiching County, MN, Lake of the Woods County, MN, Mahnomen County, MN, Marshall County, MN, McLeod County, MN, Meeker County, MN, Mille Lacs County, MN, Morrison County, MN, Norman County, MN, Otter Tail County, MN, Pennington County, MN, Polk County, MN, Pope County, MN, Ramsey County, MN, Red Lake County, MN, Roseau County, MN, Sherburne County, MN, Stearns County, MN, Stevens County, MN, Swift County, MN, Todd County, MN, Traverse County, MN, Wadena County, MN, Washington County, MN, Wilkin County, MN, Wright County, MN, Cass County, ND, Grand Forks County, ND, Pembina County, ND, Richland County, ND, Traill County, ND, Walsh County, ND, Roberts County, SD
The radar
The Fargo/Grand Forks radar (KMVX), 136 km from the middle of the area, began a volume at 20:20 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
- 30%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 20%
- One or more hailstones of 2 inches or more
- 10%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
8 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 3:18 PM CDT | Tornado Warning | FGF | Clay, Wilkin | 42 min |
| Jun 20, 3:50 PM CDT | Tornado Warning | FGF | Clay, Otter Tail, Wilkin | 40 min |
| Jun 20, 4:27 PM CDT | Tornado Warning | FGF | Otter Tail | 48 min |
| Jun 20, 4:50 PM CDT | Severe Thunderstorm Warning | FGF | Roseau | 55 min |
| Jun 20, 5:10 PM CDT | Tornado Warning | FGF | Otter Tail | 50 min |
| Jun 20, 5:40 PM CDT | Severe Thunderstorm Warning | FGF | Otter Tail, Wadena | 65 min |
| Jun 20, 5:45 PM CDT | Severe Thunderstorm Warning | MPX | Todd | 60 min |
| Jun 20, 6:48 PM CDT | Severe Thunderstorm Warning | MPX | Morrison, Todd | 57 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
International Fa, MN (KINL), launched 12:00Z, 8.3 hours before the alert went out and 229 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 623 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- -54 m²/s²
- 0-3 km storm-relative helicity
- -70 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 2:52 PM CDT | Mesoscale Discussion | SPC | Aitkin, Becker, Beltrami, Cass, Clay, Clearwater and 17 more | 113 min |
| Jun 20, 6:01 PM CDT | Mesoscale Discussion | SPC | Aitkin, Becker, Beltrami, Benton, Cass, Clearwater and 13 more | 89 min |
| Jun 20, 2:20 PM CDT | Severe Thunderstorm Watch | SPC | Clay, Union | 9 hr |
| Jun 20, 5:40 PM CDT | Mesoscale Discussion | SPC | Union | 95 min |
Nearby
Severe Thunderstorm Watches in Minnesota, 2014Severe Thunderstorm Watches in North Dakota, 2014Severe Thunderstorm Watches in South Dakota, 2014Every severe thunderstorm watch in 2014
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.