Alert archive / Nebraska / Severe Thunderstorm Watches in 2005

Severe Thunderstorm Watch 746

August 25, 200512 counties in Kansas; 26 counties in Nebraska

The Storm Prediction Center issued this severe thunderstorm watch at Aug 25, 2005, 8:30 PM CDT for 12 counties in Kansas; 26 counties in Nebraska. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Aug 25, 2005, 8:30 PM CDT (01:30 UTC)
Expired
Aug 26, 2005, 2:00 AM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 38 counties

Decatur County, KS, Gove County, KS, Graham County, KS, Logan County, KS, Norton County, KS, Phillips County, KS, Rawlins County, KS, Rooks County, KS, Sheridan County, KS, Thomas County, KS, Trego County, KS, Wallace County, KS, Blaine County, NE, Boyd County, NE, Brown County, NE, Buffalo County, NE, Custer County, NE, Dawson County, NE, Frontier County, NE, Furnas County, NE, Garfield County, NE, Gosper County, NE, Harlan County, NE, Hayes County, NE, Hitchcock County, NE, Holt County, NE, Kearney County, NE, Keya Paha County, NE, Lincoln County, NE, Logan County, NE, Loup County, NE, Phelps County, NE, Red Willow County, NE, Rock County, NE, Sherman County, NE, Thomas County, NE, Valley County, NE, Wheeler County, NE

The radar

The North Platte radar (KLNX), 82 km from the middle of the area, began a volume at 01:31 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

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

IssuedProductOfficeCountiesLasted
Aug 25, 9:10 PM CDTSevere Thunderstorm WarningGLDThomas60 min
Aug 25, 10:00 PM CDTSevere Thunderstorm WarningGLDRed Willow60 min
Aug 25, 10:30 PM CDTSevere Thunderstorm WarningGLDDecatur45 min
Aug 25, 11:08 PM CDTSevere Thunderstorm WarningGIDDawson41 min
Aug 25, 11:08 PM CDTSevere Thunderstorm WarningLBFLoup, Rock37 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

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 1.5 hours before the alert went out and 36 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, N. Platte/Lee Bi, NE at 00:00Z on 2005-08-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2370 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, N. Platte/Lee Bi, NE at 00:00Z on 2005-08-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 89 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
2370 J/kg
Mixed-layer CIN
-145 J/kg
Mixed-layer LCL
1149 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
89 m²/s²
0-3 km storm-relative helicity
130 m²/s²
Significant tornado parameter
0.2
Supercell composite
3.2

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 25, 7:37 PM CDTMesoscale DiscussionSPCCheyenne, Decatur, Logan, Rawlins, Sheridan, Sherman and 2 more83 min
Aug 25, 11:28 PM CDTMesoscale DiscussionSPCDecatur, Ellis, Gove, Graham, Logan, Norton and 8 more92 min
Aug 26, 2:18 PM CDTMesoscale DiscussionSPCAllen, Anderson, Bourbon, Butler, Chase, Chautauqua and 14 more2 hr
Aug 26, 4:40 PM CDTSevere Thunderstorm WatchSPCChautauqua, Cherokee, Crawford, Elk, Greenwood, Labette and 4 more6 hr
Aug 25, 8:06 PM CDTMesoscale DiscussionSPCAntelope, Boyd, Brown, Holt, Keya Paha, Knox and 1 more54 min

Nearby

Severe Thunderstorm Watches in Nebraska, 2005Severe Thunderstorm Watches in Kansas, 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.