Alert archive / Minnesota / Tornado Watches in 2006

Tornado Watch 777

September 16, 200623 counties in Minnesota; 9 counties in North Dakota

The Storm Prediction Center issued this tornado watch at Sep 16, 2006, 5:29 PM CDT for 23 counties in Minnesota; 9 counties in North Dakota. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued
Sep 16, 2006, 5:29 PM CDT (22:29 UTC)
Expired
Sep 17, 2006, 1:00 AM CDT
In force
8 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
60 kt
All 32 counties

Aitkin County, MN, Becker County, MN, Beltrami County, MN, Cass County, MN, Clay County, MN, Clearwater County, MN, Crow Wing County, MN, Grant County, MN, Hubbard County, MN, Itasca County, MN, Kittson County, MN, Koochiching County, MN, Lake of the Woods County, MN, Mahnomen County, MN, Marshall County, MN, Norman County, MN, Otter Tail County, MN, Pennington County, MN, Polk County, MN, Red Lake County, MN, Roseau County, MN, Wadena County, MN, Wilkin County, MN, Cass County, ND, Grand Forks County, ND, Pembina County, ND, Ransom County, ND, Richland County, ND, Sargent County, ND, Steele County, ND, Traill County, ND, Walsh County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 99 km from the middle of the area, began a volume at 22:32 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
30%
Ten or more severe wind reports
50%
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
20%
Six or more combined severe hail and wind reports
80%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Sep 16, 7:31 PM CDTTornado WarningFGFGrant59 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.

IssuedProductOfficeCountiesLasted
Sep 15, 8:32 PM CDTMesoscale DiscussionSPCCottonwood, Jackson, Lincoln, Lyon, Murray, Nobles and 4 more58 min
Sep 16, 1:25 PM CDTMesoscale DiscussionSPCBig Stone, Lac qui Parle, Lincoln, Lyon, Murray, Nobles and 3 more3 hr
Sep 16, 1:53 PM CDTTornado WatchSPCBig Stone, Rock, Traverse8 hr
Sep 16, 3:24 PM CDTMesoscale DiscussionSPCBig Stone, Chippewa, Cottonwood, Jackson, Lac qui Parle, Lincoln and 12 more96 min
Sep 16, 5:07 PM CDTTornado Watch PDSSPCAnoka, Benton, Blue Earth, Brown, Carver, Chippewa and 43 more8 hr
Sep 16, 6:12 PM CDTMesoscale DiscussionSPCBig Stone, Chippewa, Cottonwood, Douglas, Grant, Kandiyohi and 15 more63 min
Sep 16, 3:52 PM CDTMesoscale DiscussionSPCBarnes, Benson, Cass, Cavalier, Eddy, Foster and 18 more113 min

Nearby

Tornado Watches in Minnesota, 2006Tornado Watches in North Dakota, 2006Every tornado watch in 2006

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.