Alert archive / Nebraska / Severe Thunderstorm Watches in 2004
Severe Thunderstorm Watch 592
The Storm Prediction Center issued this severe thunderstorm watch at Jul 8, 2004, 2:40 PM MDT for 17 counties in Nebraska; 5 counties in South Dakota. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 8, 2004, 2:40 PM MDT (20:40 UTC)
- Expired
- Jul 8, 2004, 9:00 PM MDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 22 counties
Arthur County, NE, Banner County, NE, Box Butte County, NE, Cherry County, NE, Cheyenne County, NE, Dawes County, NE, Deuel County, NE, Garden County, NE, Grant County, NE, Hooker County, NE, Keith County, NE, Kimball County, NE, McPherson County, NE, Morrill County, NE, Scotts Bluff County, NE, Sheridan County, NE, Sioux County, NE, Bennett County, SD, Custer County, SD, Fall River County, SD, Jackson County, SD, Oglala Lakota County, SD
The radar
The North Platte radar (KLNX), 153 km from the middle of the area, began a volume at 20:44 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
18 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 8, 2:40 PM MDT | Severe Thunderstorm Warning | CYS | Sioux | 50 min |
| Jul 8, 3:29 PM MDT | Severe Thunderstorm Warning | CYS | Dawes | 31 min |
| Jul 8, 3:59 PM MDT | Tornado Warning | CYS | Dawes | 31 min |
| Jul 8, 4:07 PM MDT | Severe Thunderstorm Warning | LBF | Sheridan | 53 min |
| Jul 8, 4:59 PM MDT | Severe Thunderstorm Warning | LBF | Sheridan | 31 min |
| Jul 8, 5:10 PM MDT | Severe Thunderstorm Warning | LBF | Cherry | 65 min |
| Jul 8, 5:13 PM MDT | Tornado Warning | CYS | Morrill | 32 min |
| Jul 8, 5:36 PM MDT | Severe Thunderstorm Warning | LBF | Sheridan | 39 min |
| Jul 8, 5:42 PM MDT | Severe Thunderstorm Warning | CYS | Morrill | 33 min |
| Jul 8, 5:52 PM MDT | Severe Thunderstorm Warning | LBF | Garden | 53 min |
| Jul 8, 5:53 PM MDT | Severe Thunderstorm Warning | LBF | Grant | 52 min |
| Jul 8, 6:06 PM MDT | Severe Thunderstorm Warning | CYS | Cheyenne | 39 min |
| Jul 8, 6:12 PM MDT | Severe Thunderstorm Warning | LBF | Cherry | 63 min |
| Jul 8, 6:27 PM MDT | Severe Thunderstorm Warning | LBF | Hooker | 33 min |
| Jul 8, 6:45 PM MDT | Severe Thunderstorm Warning | LBF | Garden | 30 min |
| Jul 8, 6:51 PM MDT | Severe Thunderstorm Warning | LBF | Arthur, Keith | 54 min |
| Jul 8, 6:58 PM MDT | Severe Thunderstorm Warning | LBF | Hooker, Thomas | 32 min |
| Jul 8, 7:09 PM MDT | Severe Thunderstorm Warning | LBF | Cherry | 66 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, 8.7 hours before the alert went out and 158 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
- 251 J/kg
- Mixed-layer CIN
- -375 J/kg
- Mixed-layer LCL
- 1171 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- -92 m²/s²
- 0-3 km storm-relative helicity
- -38 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 |
|---|---|---|---|---|
| Jul 8, 2:18 PM MDT | Mesoscale Discussion | SPC | Banner, Box Butte, Cheyenne, Dawes, Kimball, Morrill and 2 more | 117 min |
| Jul 8, 5:35 PM MDT | Mesoscale Discussion | SPC | Arthur, Banner, Box Butte, Cherry, Cheyenne, Deuel and 9 more | 115 min |
| Jul 7, 7:20 PM MDT | Mesoscale Discussion | SPC | Butte, Harding, Meade, Perkins | 85 min |
| Jul 7, 8:10 PM MDT | Severe Thunderstorm Watch | SPC | Butte, Harding, Meade, Perkins | 5 hr |
| Jul 8, 12:34 AM MDT | Mesoscale Discussion | SPC | Corson | 86 min |
Nearby
Severe Thunderstorm Watches in Nebraska, 2004Severe Thunderstorm Watches in South Dakota, 2004Every severe thunderstorm watch in 2004
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.