Alert archive / Nebraska / Severe Thunderstorm Watches in 2007
Severe Thunderstorm Watch 694
The Storm Prediction Center issued this severe thunderstorm watch at Sep 29, 2007, 5:04 PM MDT for 7 counties in Colorado; 13 counties in Kansas; 24 counties in Nebraska. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Sep 29, 2007, 5:04 PM MDT (23:04 UTC)
- Expired
- Sep 29, 2007, 11:45 PM MDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 44 counties
Baca County, CO, Bent County, CO, Cheyenne County, CO, Kiowa County, CO, Kit Carson County, CO, Prowers County, CO, Yuma County, CO, Cheyenne County, KS, Decatur County, KS, Greeley County, KS, Hamilton County, KS, Kearny County, KS, Logan County, KS, Morton County, KS, Rawlins County, KS, Sherman County, KS, Stanton County, KS, Thomas County, KS, Wallace County, KS, Wichita County, KS, Arthur County, NE, Blaine County, NE, Brown County, NE, Chase County, NE, Cherry County, NE, Custer 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, Keya Paha County, NE, Lincoln County, NE, Logan County, NE, Loup County, NE, McPherson County, NE, Perkins County, NE, Red Willow County, NE, Rock County, NE, Thomas County, NE
The radar
The Goodland radar (KGLD), 14 km from the middle of the area, began a volume at 23:06 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
- 20%
- One or more EF2 to EF5 tornadoes
- 5%
- Ten or more severe wind reports
- 40%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 50%
- One or more hailstones of 2 inches or more
- 20%
- Six or more combined severe hail and wind reports
- 90%
Warnings issued inside it
40 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 29, 5:19 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne | 56 min |
| Sep 29, 5:30 PM MDT | Severe Thunderstorm Warning | LBF | Cherry, Sheridan | 45 min |
| Sep 29, 5:38 PM MDT | Severe Thunderstorm Warning | GLD | Sherman, Wallace | 35 min |
| Sep 29, 5:44 PM MDT | Severe Thunderstorm Warning | PUB | Bent, Crowley, Kiowa, Otero | 61 min |
| Sep 29, 5:50 PM MDT | Severe Thunderstorm Warning | LBF | Hayes, Lincoln | 40 min |
| Sep 29, 6:05 PM MDT | Severe Thunderstorm Warning | LBF | Cherry | 40 min |
| Sep 29, 6:21 PM MDT | Severe Thunderstorm Warning | LBF | Garden, Grant | 24 min |
| Sep 29, 6:26 PM MDT | Severe Thunderstorm Warning | LBF | Lincoln, Logan | 49 min |
| Sep 29, 6:31 PM MDT | Severe Thunderstorm Warning | LBF | Cherry | 29 min |
| Sep 29, 6:34 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne, Kit Carson | 56 min |
| Sep 29, 6:38 PM MDT | Severe Thunderstorm Warning | LBF | Cherry | 52 min |
| Sep 29, 6:42 PM MDT | Severe Thunderstorm Warning | PUB | Bent | 58 min |
| Sep 29, 6:49 PM MDT | Severe Thunderstorm Warning | LBF | Cherry, Sheridan | 41 min |
| Sep 29, 7:04 PM MDT | Severe Thunderstorm Warning | PUB | Baca | 56 min |
| Sep 29, 7:07 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne | 33 min |
| Sep 29, 7:24 PM MDT | Severe Thunderstorm Warning | GLD | Kit Carson, Yuma | 66 min |
| Sep 29, 7:28 PM MDT | Severe Thunderstorm Warning | LBF | Arthur, Grant, Hooker | 47 min |
| Sep 29, 7:28 PM MDT | Severe Thunderstorm Warning | LBF | Cherry | 32 min |
| Sep 29, 7:30 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne, Kit Carson | 60 min |
| Sep 29, 7:30 PM MDT | Severe Thunderstorm Warning | LBF | Cherry, Keya Paha | 45 min |
| Sep 29, 7:38 PM MDT | Severe Thunderstorm Warning | LBF | Cherry | 52 min |
| Sep 29, 7:44 PM MDT | Severe Thunderstorm Warning | PUB | Kiowa | 91 min |
| Sep 29, 8:05 PM MDT | Severe Thunderstorm Warning | GLD | Cheyenne, Rawlins, Sherman, Thomas | 55 min |
| Sep 29, 8:10 PM MDT | Tornado Warning | LBF | Keya Paha | 35 min |
| Sep 29, 8:13 PM MDT | Severe Thunderstorm Warning | LBF | Chase, Frontier, Hayes, Lincoln | 47 min |
| Sep 29, 8:15 PM MDT | Severe Thunderstorm Warning | LBF | Cherry, Hooker, Thomas | 45 min |
| Sep 29, 8:16 PM MDT | Severe Thunderstorm Warning | LBF | Arthur, Keith, Lincoln, McPherson, Perkins | 44 min |
| Sep 29, 8:32 PM MDT | Severe Thunderstorm Warning | DDC | Morton, Stanton | 43 min |
| Sep 29, 8:36 PM MDT | Severe Thunderstorm Warning | GLD | Greeley, Wallace | 35 min |
| Sep 29, 8:46 PM MDT | Severe Thunderstorm Warning | DDC | Hamilton, Stanton | 30 min |
| Sep 29, 8:52 PM MDT | Severe Thunderstorm Warning | GLD | Hitchcock, Red Willow | 28 min |
| Sep 29, 8:58 PM MDT | Severe Thunderstorm Warning | GLD | Thomas | 45 min |
| Sep 29, 8:58 PM MDT | Severe Thunderstorm Warning | LBF | Custer, Lincoln, Logan | 62 min |
| Sep 29, 9:00 PM MDT | Severe Thunderstorm Warning | LBF | Brown, Cherry, Keya Paha, Thomas | 30 min |
| Sep 29, 9:12 PM MDT | Severe Thunderstorm Warning | DDC | Grant, Kearny | 26 min |
| Sep 29, 9:19 PM MDT | Severe Thunderstorm Warning | GLD | Red Willow | 39 min |
| Sep 29, 9:24 PM MDT | Severe Thunderstorm Warning | GLD | Decatur, Sheridan | 30 min |
| Sep 29, 9:30 PM MDT | Severe Thunderstorm Warning | LBF | Brown, Cherry, Keya Paha, Rock | 30 min |
| Sep 29, 9:35 PM MDT | Severe Thunderstorm Warning | LBF | Frontier | 25 min |
| Sep 29, 9:56 PM MDT | Severe Thunderstorm Warning | LBF | Custer | 49 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
Denver, CO (KDNR), launched 12:00Z, 11.1 hours before the alert went out and 129 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2208 m above ground
- 0-6 km bulk shear
- 70 kt
- 0-1 km storm-relative helicity
- 180 m²/s²
- 0-3 km storm-relative helicity
- 212 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 |
|---|---|---|---|---|
| Sep 29, 11:34 AM MDT | Mesoscale Discussion | SPC | Eagle, Garfield, Jackson, Moffat, Rio Blanco, Routt | 86 min |
| Sep 29, 2:35 PM MDT | Mesoscale Discussion | SPC | Cheyenne, Kiowa, Kit Carson, Logan, Phillips, Sedgwick and 1 more | 55 min |
| Sep 28, 6:27 PM MDT | Mesoscale Discussion | SPC | Cheyenne, Decatur, Finney, Gove, Kearny, Lane and 9 more | 93 min |
Nearby
Severe Thunderstorm Watches in Nebraska, 2007Severe Thunderstorm Watches in Kansas, 2007Severe Thunderstorm Watches in Colorado, 2007Every severe thunderstorm watch in 2007
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.