Alert archive / Minnesota / Tornado Watches in 2007

Tornado Watch 357

June 7, 200726 counties in Minnesota; 8 counties in North Dakota; 8 counties in South Dakota

The Storm Prediction Center issued this tornado watch at Jun 7, 2007, 11:11 AM CDT for 26 counties in Minnesota; 8 counties in North Dakota; 8 counties in South Dakota. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Jun 7, 2007, 11:11 AM CDT (16:11 UTC)
Expired
Jun 7, 2007, 6:00 PM CDT
In force
7 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
60 kt
All 42 counties

Aitkin County, MN, Becker County, MN, Beltrami County, MN, Big Stone County, MN, Cass County, MN, Clay County, MN, Clearwater County, MN, Crow Wing County, MN, Douglas County, MN, Grant County, MN, Hubbard County, MN, Itasca County, MN, Koochiching County, MN, Mahnomen County, MN, Morrison County, MN, Norman County, MN, Otter Tail County, MN, Pennington County, MN, Polk County, MN, Pope County, MN, Red Lake County, MN, Stevens County, MN, Todd County, MN, Traverse County, MN, Wadena County, MN, Wilkin County, MN, Barnes County, ND, Cass County, ND, Dickey County, ND, LaMoure County, ND, Ransom County, ND, Richland County, ND, Sargent County, ND, Traill County, ND, Brown County, SD, Clark County, SD, Codington County, SD, Day County, SD, Grant County, SD, Marshall County, SD, Roberts County, SD, Spink County, SD

The radar

The Fargo/Grand Forks radar (KMVX), 118 km from the middle of the area, began a volume at 16:15 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
40%
One or more EF2 to EF5 tornadoes
20%
Ten or more severe wind reports
30%
One or more gusts of 65 knots or more
20%
Ten or more severe hail reports
50%
One or more hailstones of 2 inches or more
30%
Six or more combined severe hail and wind reports
70%

Warnings issued inside it

25 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jun 7, 12:06 PM CDTSevere Thunderstorm WarningABRDay36 min
Jun 7, 12:26 PM CDTSevere Thunderstorm WarningABRDay, Marshall, Roberts64 min
Jun 7, 12:31 PM CDTSevere Thunderstorm WarningDLHKoochiching44 min
Jun 7, 12:37 PM CDTSevere Thunderstorm WarningABRRoberts8 min
Jun 7, 12:41 PM CDTSevere Thunderstorm WarningFGFRichland43 min
Jun 7, 12:46 PM CDTSevere Thunderstorm WarningABRRoberts59 min
Jun 7, 12:48 PM CDTSevere Thunderstorm WarningFGFCass46 min
Jun 7, 12:56 PM CDTTornado WarningFGFWilkin64 min
Jun 7, 1:06 PM CDTTornado WarningABRRoberts24 min
Jun 7, 1:09 PM CDTSevere Thunderstorm WarningABRCodington, Day, Grant, Roberts43 min
Jun 7, 1:14 PM CDTSevere Thunderstorm WarningFGFBeltrami28 min
Jun 7, 1:37 PM CDTSevere Thunderstorm WarningABRTraverse38 min
Jun 7, 1:38 PM CDTTornado WarningFGFOtter Tail56 min
Jun 7, 1:41 PM CDTSevere Thunderstorm WarningABRTraverse19 min
Jun 7, 1:47 PM CDTSevere Thunderstorm WarningABRRoberts34 min
Jun 7, 2:23 PM CDTSevere Thunderstorm WarningFGFBecker67 min
Jun 7, 2:51 PM CDTSevere Thunderstorm WarningFGFMahnomen54 min
Jun 7, 2:58 PM CDTSevere Thunderstorm WarningDLHKoochiching47 min
Jun 7, 3:01 PM CDTSevere Thunderstorm WarningFGFBeltrami45 min
Jun 7, 3:05 PM CDTSevere Thunderstorm WarningDLHAitkin, Saint Louis25 min
Jun 7, 3:21 PM CDTSevere Thunderstorm WarningMPXPope24 min
Jun 7, 3:25 PM CDTSevere Thunderstorm WarningDLHAitkin, Saint Louis20 min
Jun 7, 3:54 PM CDTTornado WarningDLHItasca, Koochiching36 min
Jun 7, 5:02 PM CDTSevere Thunderstorm WarningDLHItasca, Saint Louis28 min
Jun 7, 5:47 PM CDTSevere Thunderstorm WarningDLHAitkin, Carlton, Itasca, Pine, Saint Louis28 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

Aberdeen, SD (KABR), launched 12:00Z, 4.2 hours before the alert went out and 271 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.

Skew-T log-pSkew-T log-p diagram, Aberdeen, SD at 12:00Z on 2007-06-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 26 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Aberdeen, SD at 12:00Z on 2007-06-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -88 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
26 J/kg
Mixed-layer CIN
-395 J/kg
Mixed-layer LCL
842 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
-88 m²/s²
0-3 km storm-relative helicity
-101 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 6, 8:29 PM CDTMesoscale DiscussionSPCBig Stone, Clay, Grant, Lac qui Parle, Norman, Otter Tail and 5 more61 min
Jun 6, 8:49 PM CDTTornado WatchSPCBecker, Big Stone, Chippewa, Clay, Clearwater, Douglas and 16 more7 hr
Jun 6, 10:53 PM CDTMesoscale DiscussionSPCPipestone, Rock2 hr
Jun 6, 11:30 PM CDTMesoscale DiscussionSPCBecker, Big Stone, Clay, Douglas, Grant, Lac qui Parle and 8 more2 hr
Jun 7, 2:02 AM CDTMesoscale DiscussionSPCAnoka, Benton, Blue Earth, Brown, Carver, Chisago and 20 more58 min
Jun 7, 3:05 AM CDTMesoscale DiscussionSPCBig Stone, Chippewa, Lac qui Parle, Lincoln, Lyon, Murray and 7 more55 min
Jun 7, 3:36 AM CDTMesoscale DiscussionSPCBecker, Beltrami, Clay, Clearwater, Hubbard, Mahnomen and 8 more54 min
Jun 7, 9:11 AM CDTMesoscale DiscussionSPCBlue Earth, Dodge, Faribault, Fillmore, Freeborn, Goodhue and 7 more64 min
Jun 7, 10:48 AM CDTMesoscale DiscussionSPCBecker, Big Stone, Clay, Clearwater, Douglas, Grant and 9 more87 min
Jun 7, 11:34 AM CDTTornado Watch PDSSPCCarlton, Chisago, Cook, Dakota, Dodge, Fillmore and 14 more10 hr
Jun 7, 2:34 PM CDTMesoscale DiscussionSPCBecker, Beltrami, Cass, Clay, Clearwater, Grant and 10 more116 min
Jun 7, 3:38 PM CDTMesoscale DiscussionSPCHouston97 min
Jun 7, 4:11 PM CDTMesoscale DiscussionSPCBenton, Chippewa, Isanti, Kandiyohi, McLeod, Meeker and 9 more2 hr
Jun 7, 5:22 PM CDTMesoscale DiscussionSPCAitkin, Cass, Crow Wing, Itasca, Saint Louis53 min
Jun 6, 7:36 PM CDTTornado WatchSPCAurora, Beadle, Bon Homme, Brookings, Brule, Charles Mix and 17 more7 hr

Nearby

Tornado Watches in Minnesota, 2007Tornado Watches in North Dakota, 2007Tornado Watches in South Dakota, 2007Every tornado watch in 2007

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.