Alert archive / South Dakota / Severe Thunderstorm Watches in 2016

Severe Thunderstorm Watch 392

July 16, 201633 counties in Minnesota; 49 counties in South Dakota

The Storm Prediction Center issued this severe thunderstorm watch at Jul 16, 2016, 6:57 PM CDT for 33 counties in Minnesota; 49 counties in South Dakota. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued: Jul 16, 2016, 6:57 PM CDT (23:57 UTC)
Expired: Jul 17, 2016, 2:00 AM CDT
In force: 7 hr
Issued by: the Storm Prediction Center
Largest hail expected: 2 in
Strongest gust expected: 60 kt

All 82 counties

Big Stone County, MN, Blue Earth County, MN, Brown County, MN, Carver County, MN, Chippewa County, MN, Cottonwood County, MN, Faribault County, MN, Freeborn County, MN, Jackson County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Le Sueur County, MN, Lincoln County, MN, Lyon County, MN, Martin County, MN, McLeod County, MN, Meeker County, MN, Murray County, MN, Nicollet County, MN, Nobles County, MN, Pipestone County, MN, Redwood County, MN, Renville County, MN, Rice County, MN, Rock County, MN, Scott County, MN, Sibley County, MN, Steele County, MN, Swift County, MN, Traverse County, MN, Waseca County, MN, Watonwan County, MN, Yellow Medicine County, MN, Aurora County, SD, Beadle County, SD, Bon Homme County, SD, Brookings County, SD, Brown County, SD, Brule County, SD, Buffalo County, SD, Campbell County, SD, Charles Mix County, SD, Clark County, SD, Clay County, SD, Codington County, SD, Corson County, SD, Davison County, SD, Day County, SD, Deuel County, SD, Dewey County, SD, Douglas County, SD, Edmunds County, SD, Faulk County, SD, Grant County, SD, Hamlin County, SD, Hand County, SD, Hanson County, SD, Hughes County, SD, Hutchinson County, SD, Hyde County, SD, Jerauld County, SD, Jones County, SD, Kingsbury County, SD, Lake County, SD, Lincoln County, SD, Lyman County, SD, Marshall County, SD, McCook County, SD, McPherson County, SD, Miner County, SD, Minnehaha County, SD, Moody County, SD, Potter County, SD, Roberts County, SD, Sanborn County, SD, Spink County, SD, Stanley County, SD, Sully County, SD, Turner County, SD, Union County, SD, Walworth County, SD, Yankton County, SD

The radar

The Aberdeen radar (KABR), 92 km from the middle of the area, began a volume at 23:57 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: 60%
One or more gusts of 65 knots or more: 10%
Ten or more severe hail reports: 40%
One or more hailstones of 2 inches or more: 30%
Six or more combined severe hail and wind reports: 80%

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
Jul 16, 6:59 PM CDT	Severe Thunderstorm Warning	ABR	Big Stone	46 min
Jul 16, 7:03 PM CDT	Severe Thunderstorm Warning	MPX	Lac qui Parle	42 min
Jul 16, 7:31 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Lac qui Parle, Renville, Yellow Medicine	59 min
Jul 16, 7:33 PM CDT	Severe Thunderstorm Warning	ABR	Big Stone	27 min
Jul 16, 7:35 PM CDT	Severe Thunderstorm Warning	ABR	Clark	40 min
Jul 16, 7:40 PM CDT	Tornado Warning	ABR	Clark, Spink	23 min
Jul 16, 8:04 PM CDT	Severe Thunderstorm Warning	MPX	Chippewa, Kandiyohi, Redwood, Renville, Yellow Medicine	71 min
Jul 16, 8:07 PM CDT	Severe Thunderstorm Warning	ABR	Clark, Codington, Hamlin	38 min
Jul 16, 8:15 PM CDT	Tornado Warning	ABR	Clark	30 min
Jul 16, 8:25 PM CDT	Severe Thunderstorm Warning	ABR	Corson	50 min
Jul 16, 8:30 PM CDT	Tornado Warning	ABR	Clark, Hamlin	30 min
Jul 16, 8:35 PM CDT	Severe Thunderstorm Warning	MPX	McLeod, Meeker, Renville, Sibley	55 min
Jul 16, 8:50 PM CDT	Severe Thunderstorm Warning	ABR	Corson, Dewey	40 min
Jul 16, 8:55 PM CDT	Severe Thunderstorm Warning	ABR	Clark, Codington, Hamlin	65 min
Jul 16, 9:03 PM CDT	Severe Thunderstorm Warning	ABR	Hughes, Hyde, Stanley, Sully	42 min
Jul 16, 9:11 PM CDT	Severe Thunderstorm Warning	ABR	Big Stone, Traverse	34 min
Jul 16, 9:12 PM CDT	Severe Thunderstorm Warning	FSD	Lyon	48 min
Jul 16, 9:12 PM CDT	Severe Thunderstorm Warning	MPX	Brown, Nicollet, Redwood	63 min
Jul 16, 9:20 PM CDT	Severe Thunderstorm Warning	FSD	Brookings, Kingsbury	40 min
Jul 16, 9:23 PM CDT	Severe Thunderstorm Warning	ABR	Deuel, Hamlin	52 min
Jul 16, 9:30 PM CDT	Severe Thunderstorm Warning	MPX	McLeod, Nicollet, Renville, Sibley	60 min
Jul 16, 9:50 PM CDT	Severe Thunderstorm Warning	ABR	Campbell, Corson, Dewey, Edmunds, Faulk, McPherson and 2 more	40 min
Jul 16, 9:50 PM CDT	Tornado Warning	FSD	Brookings, Kingsbury	40 min
Jul 16, 10:03 PM CDT	Severe Thunderstorm Warning	MPX	Brown, Redwood	57 min
Jul 16, 10:06 PM CDT	Severe Thunderstorm Warning	FSD	Cottonwood	54 min
Jul 16, 10:16 PM CDT	Severe Thunderstorm Warning	MPX	Blue Earth, Brown, Watonwan	44 min
Jul 16, 10:17 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln	43 min
Jul 16, 10:22 PM CDT	Tornado Warning	FSD	Brookings	38 min
Jul 16, 10:24 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln, Lyon, Murray	51 min
Jul 16, 10:30 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Campbell, Edmunds, Faulk, McPherson, Potter and 2 more	60 min
Jul 16, 10:34 PM CDT	Severe Thunderstorm Warning	ABR	Deuel, Hamlin	15 min
Jul 16, 10:50 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln	40 min
Jul 16, 10:58 PM CDT	Severe Thunderstorm Warning	FSD	Cottonwood, Jackson	47 min
Jul 16, 10:58 PM CDT	Severe Thunderstorm Warning	FSD	Charles Mix, Douglas, Gregory	32 min
Jul 16, 11:02 PM CDT	Severe Thunderstorm Warning	FSD	Cottonwood, Lyon, Murray	43 min
Jul 16, 11:06 PM CDT	Tornado Warning	FSD	Lincoln	24 min
Jul 16, 11:09 PM CDT	Severe Thunderstorm Warning	ABR	Brown, Edmunds, Faulk, McPherson, Spink	66 min
Jul 16, 11:13 PM CDT	Severe Thunderstorm Warning	FSD	Lincoln, Lyon, Murray	47 min
Jul 16, 11:18 PM CDT	Severe Thunderstorm Warning	FSD	Bon Homme, Charles Mix, Douglas, Hutchinson, Turner, Yankton	27 min
Jul 16, 11:31 PM CDT	Flash Flood Warning	MPX	Brown, Redwood, Watonwan	4 hr
Jul 16, 11:34 PM CDT	Severe Thunderstorm Warning	FSD	McCook, Turner	26 min
Jul 16, 11:35 PM CDT	Flash Flood Warning	FSD	Cottonwood, Jackson, Lincoln, Lyon, Murray, Pipestone	6 hr
Jul 16, 11:39 PM CDT	Severe Thunderstorm Warning	ABR	Deuel	21 min
Jul 16, 11:42 PM CDT	Severe Thunderstorm Warning	FSD	Brookings	34 min
Jul 16, 11:45 PM CDT	Severe Thunderstorm Warning	FSD	Bon Homme, Charles Mix, Clay, Hutchinson, Lincoln, Turner and 2 more	30 min
Jul 16, 11:49 PM CDT	Severe Thunderstorm Warning	FSD	Cottonwood, Jackson	41 min
Jul 16, 11:54 PM CDT	Severe Thunderstorm Warning	FSD	Cottonwood, Lincoln, Lyon, Murray, Pipestone	44 min
Jul 17, 12:00 AM CDT	Flash Flood Warning	MPX	Blue Earth, Faribault, Freeborn, Martin	5 hr
Jul 17, 12:00 AM CDT	Severe Thunderstorm Warning	FSD	Lincoln, McCook, Minnehaha, Turner	45 min
Jul 17, 12:14 AM CDT	Severe Thunderstorm Warning	FSD	Clay, Lincoln, Turner, Union, Yankton	31 min
Jul 17, 12:37 AM CDT	Severe Thunderstorm Warning	FSD	Nobles, Rock	23 min
Jul 17, 12:41 AM CDT	Severe Thunderstorm Warning	FSD	Lincoln	34 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, 12.0 hours before the alert went out and 44 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1153 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: -1 m²/s²
0-3 km storm-relative helicity: 88 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.

Issued	Product	Office	Counties	Lasted
Jul 16, 12:27 PM CDT	Mesoscale Discussion	SPC	Big Stone, Traverse, Wilkin	2 hr
Jul 16, 1:09 PM CDT	Severe Thunderstorm Watch	SPC	Big Stone, Traverse	7 hr
Jul 16, 5:09 PM CDT	Mesoscale Discussion	SPC	Big Stone, Chippewa, Cottonwood, Jackson, Lac qui Parle, Lincoln and 10 more	96 min
Jul 16, 3:18 PM CDT	Mesoscale Discussion	SPC	Brown, Campbell, Clark, Codington, Corson, Day and 11 more	87 min
Jul 16, 3:33 PM CDT	Severe Thunderstorm Watch	SPC	Bennett, Butte, Custer, Fall River, Haakon, Harding and 10 more	6 hr

Nearby

Severe Thunderstorm Watches in South Dakota, 2016 Severe Thunderstorm Watches in Minnesota, 2016 Every severe thunderstorm watch in 2016

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.