Alert archive / Nebraska / Severe Thunderstorm Watches in 2005

Severe Thunderstorm Watch 537

June 27, 200517 counties in Nebraska; 9 counties in South Dakota; Crook County, Niobrara County, Weston County, Wyoming

The Storm Prediction Center issued this severe thunderstorm watch at Jun 27, 2005, 2:30 PM MDT for 17 counties in Nebraska; 9 counties in South Dakota; Crook County, Niobrara County, Weston County, Wyoming. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Jun 27, 2005, 2:30 PM MDT (20:30 UTC)
Expired
Jun 27, 2005, 9:00 PM MDT
In force
7 hr
Issued by
the Storm Prediction Center
All 29 counties

Arthur County, NE, Banner County, NE, Box Butte County, NE, Cherry County, NE, Cheyenne County, NE, Dawes County, NE, Garden County, NE, Grant County, NE, Hooker County, NE, Keith County, NE, Logan County, NE, McPherson County, NE, Morrill County, NE, Scotts Bluff County, NE, Sheridan County, NE, Sioux County, NE, Thomas County, NE, Bennett County, SD, Butte County, SD, Custer County, SD, Fall River County, SD, Jackson County, SD, Lawrence County, SD, Meade County, SD, Oglala Lakota County, SD, Pennington County, SD, Crook County, WY, Niobrara County, WY, Weston County, WY

The radar

The Rapid City radar (KUDX), 77 km from the middle of the area, began a volume at 20:31 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.

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jun 27, 2:43 PM MDTSevere Thunderstorm WarningCYSScotts Bluff23 min
Jun 27, 3:29 PM MDTSevere Thunderstorm WarningCYSBanner, Scotts Bluff61 min
Jun 27, 3:44 PM MDTTornado WarningCYSBanner, Scotts Bluff46 min
Jun 27, 3:51 PM MDTSevere Thunderstorm WarningCYSSioux45 min
Jun 27, 4:29 PM MDTSevere Thunderstorm WarningCYSBanner61 min
Jun 27, 4:29 PM MDTSevere Thunderstorm WarningCYSBanner, Sioux61 min
Jun 27, 4:37 PM MDTTornado WarningCYSBanner, Morrill54 min
Jun 27, 4:37 PM MDTTornado WarningCYSBanner, Morrill53 min
Jun 27, 4:42 PM MDTSevere Thunderstorm WarningCYSDawes55 min
Jun 27, 4:43 PM MDTSevere Thunderstorm WarningLBFSheridan33 min
Jun 27, 4:54 PM MDTTornado WarningCYSCheyenne36 min
Jun 27, 5:28 PM MDTTornado WarningCYSCheyenne47 min
Jun 27, 6:15 PM MDTTornado WarningCYSCheyenne61 min
Jun 27, 6:19 PM MDTSevere Thunderstorm WarningUNRBennett56 min
Jun 27, 7:23 PM MDTSevere Thunderstorm WarningLBFCherry67 min
Jun 27, 7:56 PM MDTTornado WarningLBFCherry64 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

Rapid City, SD (KUNR), launched 12:00Z, 8.5 hours before the alert went out and 72 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, Rapid City, SD at 12:00Z on 2005-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Rapid City, SD at 12:00Z on 2005-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 42 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1597 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
42 m²/s²
0-3 km storm-relative helicity
137 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 27, 11:53 AM MDTMesoscale DiscussionSPCBurt, Butler, Cass, Colfax, Cuming, Dodge and 12 more2 hr
Jun 27, 1:00 PM MDTSevere Thunderstorm WatchSPCWashington7 hr
Jun 27, 2:08 PM MDTMesoscale DiscussionSPCBox Butte, Dawes, Garden, Grant, Morrill, Scotts Bluff and 2 more2 hr
Jun 27, 2:37 PM MDTMesoscale DiscussionSPCBurt83 min
Jun 27, 3:47 PM MDTMesoscale DiscussionSPCChase, Dundy, Frontier, Furnas, Hayes, Hitchcock and 2 more118 min
Jun 27, 5:00 PM MDTMesoscale DiscussionSPCChase, Dundy, Frontier, Furnas, Hayes, Hitchcock and 2 more90 min
Jun 26, 6:08 PM MDTMesoscale DiscussionSPCBrown, Campbell, Corson, Dewey, Edmunds, McPherson and 3 more2 hr
Jun 26, 6:12 PM MDTMesoscale DiscussionSPCButte, Harding, Lawrence, Meade, Perkins2 hr
Jun 26, 7:15 PM MDTSevere Thunderstorm WatchSPCBrown, Campbell, Corson, Day, Dewey, Edmunds and 6 more8 hr
Jun 26, 8:58 PM MDTMesoscale DiscussionSPCBrown, Campbell, Corson, Day, Dewey, Edmunds and 6 more92 min

Nearby

Severe Thunderstorm Watches in Nebraska, 2005Severe Thunderstorm Watches in South Dakota, 2005Severe Thunderstorm Watches in Wyoming, 2005Every severe thunderstorm watch in 2005

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.