Alert archive / Nebraska / Tornado Watches in 2006
Tornado Watch 405
The Storm Prediction Center issued this tornado watch at May 26, 2006, 3:01 PM MDT for 13 counties in Colorado; 5 counties in Kansas; 17 counties in Nebraska. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- May 26, 2006, 3:01 PM MDT (21:01 UTC)
- Expired
- May 26, 2006, 9:00 PM MDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 35 counties
Adams County, CO, Arapahoe County, CO, Cheyenne County, CO, Elbert County, CO, Kit Carson County, CO, Lincoln County, CO, Logan County, CO, Morgan County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Weld County, CO, Yuma County, CO, Cheyenne County, KS, Greeley County, KS, Sherman County, KS, Wallace County, KS, Wichita County, KS, Arthur County, NE, Banner County, NE, Box Butte County, NE, Chase County, NE, Cheyenne County, NE, Dawes County, NE, Deuel County, NE, Dundy County, NE, Garden County, NE, Grant County, NE, Keith County, NE, Kimball County, NE, Morrill County, NE, Perkins County, NE, Scotts Bluff County, NE, Sheridan County, NE, Sioux County, NE
The radar
The Cheyenne radar (KCYS), 137 km from the middle of the area, began a volume at 21:04 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
- 30%
- One or more EF2 to EF5 tornadoes
- 5%
- Ten or more severe wind reports
- 30%
- 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
- 30%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
3 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 26, 5:52 PM MDT | Severe Thunderstorm Warning | CYS | Sioux | 15 min |
| May 26, 7:23 PM MDT | Severe Thunderstorm Warning | CYS | Box Butte, Dawes | 37 min |
| May 26, 7:52 PM MDT | Severe Thunderstorm Warning | LBF | Sheridan | 53 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, 9.0 hours before the alert went out and 217 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.
- Mixed-layer CAPE
- 11 J/kg
- Mixed-layer CIN
- -416 J/kg
- Mixed-layer LCL
- 2712 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 90 m²/s²
- 0-3 km storm-relative helicity
- 199 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 26, 2:26 PM MDT | Mesoscale Discussion | SPC | Adams, Arapahoe, Broomfield, Denver, Elbert, Larimer and 7 more | 94 min |
| May 26, 3:24 PM MDT | Mesoscale Discussion | SPC | Baca, Bent, Crowley, Kiowa, Las Animas, Otero and 2 more | 96 min |
| May 25, 6:55 PM MDT | Mesoscale Discussion | SPC | Barber, Clark, Comanche, Edwards, Finney, Ford and 12 more | 95 min |
| May 25, 7:20 PM MDT | Severe Thunderstorm Watch | SPC | Barber, Barton, Butler, Clark, Comanche, Cowley and 18 more | 7 hr |
| May 25, 9:17 PM MDT | Mesoscale Discussion | SPC | Allen, Barber, Barton, Bourbon, Butler, Chase and 31 more | 118 min |
| May 26, 1:12 AM MDT | Mesoscale Discussion | SPC | Barber, Butler, Chase, Chautauqua, Cowley, Elk and 4 more | 93 min |
| May 26, 2:16 AM MDT | Mesoscale Discussion | SPC | Cherokee, Crawford, Labette, Montgomery, Neosho, Wilson | 119 min |
| May 26, 4:31 AM MDT | Mesoscale Discussion | SPC | Clay, Cloud, Dickinson, Ellsworth, Geary, Jewell and 14 more | 2 hr |
| May 26, 4:38 PM MDT | Tornado Watch | SPC | Decatur, Ellis, Gove, Graham, Jewell, Logan and 10 more | 5 hr |
Nearby
Tornado Watches in Nebraska, 2006Tornado Watches in Colorado, 2006Tornado Watches in Kansas, 2006Every tornado watch in 2006
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.