Alert archive / South Dakota / Severe Thunderstorm Watches in 2008

Severe Thunderstorm Watch 700

July 18, 200815 counties in South Dakota

The Storm Prediction Center issued this severe thunderstorm watch at Jul 18, 2008, 4:32 PM MDT for 15 counties in South Dakota. It was in force for 10 hr.

The area

The outline as issued.

The facts

Issued
Jul 18, 2008, 4:32 PM MDT (22:32 UTC)
Expired
Jul 19, 2008, 3:00 AM MDT
In force
10 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
60 kt

Counties Bennett County, SD, Corson County, SD, Custer County, SD, Dewey County, SD, Fall River County, SD, Haakon County, SD, Jackson County, SD, Jones County, SD, Meade County, SD, Mellette County, SD, Pennington County, SD, Stanley County, SD, Todd County, SD, Tripp County, SD, Ziebach County, SD

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes
20%
One or more EF2 to EF5 tornadoes
10%
Ten or more severe wind reports
40%
One or more gusts of 65 knots or more
30%
Ten or more severe hail reports
40%
One or more hailstones of 2 inches or more
50%
Six or more combined severe hail and wind reports
80%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jul 18, 5:40 PM MDTSevere Thunderstorm WarningUNRFall River65 min
Jul 18, 6:20 PM MDTSevere Thunderstorm WarningABRCorson40 min
Jul 18, 7:01 PM MDTSevere Thunderstorm WarningABRCorson29 min
Jul 18, 7:03 PM MDTSevere Thunderstorm WarningUNRZiebach57 min
Jul 18, 7:17 PM MDTSevere Thunderstorm WarningUNR58 min
Jul 18, 7:22 PM MDTSevere Thunderstorm WarningUNRButte, Harding, Meade, Perkins53 min
Jul 18, 7:28 PM MDTSevere Thunderstorm WarningABRDewey62 min
Jul 18, 7:44 PM MDTSevere Thunderstorm WarningUNRButte, Lawrence, Meade61 min
Jul 18, 7:53 PM MDTSevere Thunderstorm WarningUNRBennett79 min
Jul 18, 8:13 PM MDTSevere Thunderstorm WarningUNRMeade, Perkins62 min
Jul 18, 8:16 PM MDTSevere Thunderstorm WarningUNRButte, Meade59 min
Jul 18, 8:29 PM MDTSevere Thunderstorm WarningABRDewey61 min
Jul 18, 8:59 PM MDTSevere Thunderstorm WarningUNRMeade, Perkins, Ziebach61 min
Jul 18, 9:03 PM MDTSevere Thunderstorm WarningUNRMeade57 min
Jul 18, 9:23 PM MDTSevere Thunderstorm WarningABRDewey, Potter, Sully67 min
Jul 18, 9:31 PM MDTSevere Thunderstorm WarningUNRHaakon, Meade, Pennington, Ziebach59 min
Jul 18, 9:38 PM MDTSevere Thunderstorm WarningUNRTodd51 min
Jul 18, 9:48 PM MDTSevere Thunderstorm WarningUNRHaakon, Ziebach42 min
Jul 18, 10:05 PM MDTSevere Thunderstorm WarningABRDewey, Stanley, Sully55 min
Jul 18, 10:27 PM MDTSevere Thunderstorm WarningUNRCuster, Pennington63 min
Jul 18, 10:32 PM MDTSevere Thunderstorm WarningUNRHaakon28 min
Jul 18, 10:54 PM MDTSevere Thunderstorm WarningABRHughes, Stanley, Sully51 min
Jul 18, 11:08 PM MDTFlash Flood WarningABRDewey6 hr
Jul 18, 11:16 PM MDTSevere Thunderstorm WarningABRHughes, Stanley44 min
Jul 18, 11:41 PM MDTSevere Thunderstorm WarningABRBuffalo, Hand, Hughes, Hyde, Lyman, Stanley and 1 more64 min
Jul 19, 12:06 AM MDTSevere Thunderstorm WarningUNRLawrence, Meade54 min
Jul 19, 1:13 AM MDTSevere Thunderstorm WarningUNRHaakon, Pennington62 min
Jul 19, 1:59 AM MDTSevere Thunderstorm WarningUNRJackson, Pennington61 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
Jul 18, 1:33 PM MDTSevere Thunderstorm WatchSPCButte, Harding, Lawrence, Perkins7 hr
Jul 18, 3:32 PM MDTMesoscale DiscussionSPCButte, Harding, Lawrence88 min

Nearby

Severe Thunderstorm Watches in South Dakota, 2008Every severe thunderstorm watch in 2008

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.