Alert archive / Nebraska / Tornado Watches in 2008

Tornado Watch 220

April 23, 200811 counties in Colorado; 11 counties in Kansas; 23 counties in Nebraska

The Storm Prediction Center issued this tornado watch at Apr 23, 2008, 1:25 PM MDT for 11 counties in Colorado; 11 counties in Kansas; 23 counties in Nebraska. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued
Apr 23, 2008, 1:25 PM MDT (19:25 UTC)
Expired
Apr 23, 2008, 9:00 PM MDT
In force
8 hr
Issued by
the Storm Prediction Center
All 45 counties

Baca County, CO, Bent County, CO, Cheyenne County, CO, Kiowa County, CO, Kit Carson County, CO, Logan County, CO, Phillips County, CO, Prowers County, CO, Sedgwick County, CO, Washington County, CO, Yuma County, CO, Cheyenne County, KS, Decatur County, KS, Gove County, KS, Greeley County, KS, Logan County, KS, Rawlins County, KS, Sheridan County, KS, Sherman County, KS, Thomas County, KS, Wallace County, KS, Wichita County, KS, Arthur County, NE, Box Butte County, NE, Chase County, NE, Cherry County, NE, Cheyenne County, NE, Dawes County, NE, Deuel County, NE, Dundy County, NE, Frontier County, NE, Garden County, NE, Grant County, NE, Hayes County, NE, Hitchcock County, NE, Hooker County, NE, Keith County, NE, Lincoln County, NE, Logan County, NE, McPherson County, NE, Morrill County, NE, Perkins County, NE, Red Willow County, NE, Sheridan County, NE, Thomas County, NE

The radar

The North Platte radar (KLNX), 181 km from the middle of the area, began a volume at 19:27 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

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

IssuedProductOfficeCountiesLasted
Apr 23, 2:24 PM MDTSevere Thunderstorm WarningPUBBent, Kiowa, Prowers96 min
Apr 23, 3:35 PM MDTSevere Thunderstorm WarningLBFCuster, Lincoln, Logan55 min
Apr 23, 4:04 PM MDTSevere Thunderstorm WarningGLDKit Carson, Yuma17 min
Apr 23, 4:06 PM MDTSevere Thunderstorm WarningLBFFrontier, Lincoln39 min
Apr 23, 4:15 PM MDTSevere Thunderstorm WarningPUBKiowa60 min
Apr 23, 4:16 PM MDTTornado WarningGLDKit Carson59 min
Apr 23, 4:20 PM MDTTornado WarningPUBKiowa55 min
Apr 23, 4:25 PM MDTSevere Thunderstorm WarningGLDKit Carson, Yuma65 min
Apr 23, 4:27 PM MDTSevere Thunderstorm WarningGLDWichita19 min
Apr 23, 4:27 PM MDTSevere Thunderstorm WarningLBFCuster, Logan63 min
Apr 23, 4:27 PM MDTSevere Thunderstorm WarningLBFHayes, Lincoln33 min
Apr 23, 4:42 PM MDTSevere Thunderstorm WarningPUBBaca, Prowers39 min
Apr 23, 4:47 PM MDTSevere Thunderstorm WarningPUBKiowa, Prowers42 min
Apr 23, 4:49 PM MDTTornado WarningGLDKit Carson, Yuma56 min
Apr 23, 4:49 PM MDTSevere Thunderstorm WarningLBFLincoln32 min
Apr 23, 4:56 PM MDTSevere Thunderstorm WarningCYSMorrill49 min
Apr 23, 5:14 PM MDTSevere Thunderstorm WarningPUBKiowa61 min
Apr 23, 5:34 PM MDTTornado WarningCYSMorrill26 min
Apr 23, 5:47 PM MDTSevere Thunderstorm WarningLBFChase, Perkins43 min
Apr 23, 5:49 PM MDTSevere Thunderstorm WarningGLDYuma22 min
Apr 23, 5:57 PM MDTSevere Thunderstorm WarningBOUSedgwick12 min
Apr 23, 5:59 PM MDTSevere Thunderstorm WarningGLDCheyenne46 min
Apr 23, 6:01 PM MDTTornado WarningCYSMorrill29 min
Apr 23, 6:08 PM MDTSevere Thunderstorm WarningCYSBox Butte37 min
Apr 23, 6:31 PM MDTTornado WarningCYSMorrill29 min
Apr 23, 6:45 PM MDTSevere Thunderstorm WarningCYSDawes, Sioux45 min
Apr 23, 6:53 PM MDTSevere Thunderstorm WarningCYSDawes52 min
Apr 23, 7:07 PM MDTSevere Thunderstorm WarningCYSBox Butte, Morrill38 min
Apr 23, 7:32 PM MDTSevere Thunderstorm WarningCYSDawes58 min
Apr 23, 7:47 PM MDTSevere Thunderstorm WarningCYSBox Butte, Morrill28 min
Apr 23, 8:35 PM MDTSevere Thunderstorm WarningCYSDawes25 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 12:00Z, 7.4 hours before the alert went out and 144 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 12:00Z on 2008-04-23Temperature 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, N. Platte/Lee Bi, NE at 12:00Z on 2008-04-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 202 square meters per square second.193958Sfc1 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
1459 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
202 m²/s²
0-3 km storm-relative helicity
245 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
Apr 23, 12:16 PM MDTMesoscale DiscussionSPCBaca, Bent, Cheyenne, Crowley, Kiowa, Kit Carson and 10 more2 hr
Apr 23, 8:20 AM MDTMesoscale DiscussionSPCBarber, Barton, Butler, Chase, Cowley, Dickinson and 32 more85 min
Apr 23, 8:32 AM MDTSevere Thunderstorm WatchSPCBarber, Clark, Comanche, Edwards, Finney, Ford and 15 more6 hr
Apr 23, 8:50 AM MDTSevere Thunderstorm WatchSPCBarton, Butler, Chase, Chautauqua, Clay, Cloud and 38 more6 hr
Apr 23, 11:13 AM MDTMesoscale DiscussionSPCAllen, Anderson, Barton, Bourbon, Butler, Chase and 40 more92 min
Apr 23, 2:37 PM MDTMesoscale DiscussionSPCAllen, Anderson, Barber, Barton, Bourbon, Butler and 58 more53 min
Apr 23, 2:52 PM MDTSevere Thunderstorm WatchSPCFinney, Grant, Gray, Hamilton, Haskell, Kearny and 7 more4 hr
Apr 23, 3:04 PM MDTMesoscale DiscussionSPCAdams, Antelope, Blaine, Boone, Buffalo, Burt and 51 more2 hr
Apr 23, 3:34 PM MDTMesoscale DiscussionSPCAdams, Antelope, Blaine, Boone, Buffalo, Burt and 51 more116 min
Apr 23, 4:58 PM MDTTornado WatchSPCBlaine, Brown, Custer, Garfield, Holt, Keya Paha and 2 more4 hr

Nearby

Tornado Watches in Nebraska, 2008Tornado Watches in Colorado, 2008Tornado Watches in Kansas, 2008Every tornado 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.