Alert archive / Nebraska / Severe Thunderstorm Watches in 2002
Severe Thunderstorm Watch 345
The Storm Prediction Center issued this severe thunderstorm watch at May 27, 2002, 1:45 PM MDT for 19 counties in Nebraska; 14 counties in South Dakota. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- May 27, 2002, 1:45 PM MDT (19:45 UTC)
- Expired
- May 27, 2002, 8:00 PM MDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 33 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, Logan County, NE, McPherson County, NE, Morrill County, NE, Scotts Bluff County, NE, Sheridan County, NE, Sioux County, NE, Thomas County, NE, Bennett County, SD, Custer County, SD, Fall River County, SD, Haakon County, SD, Jackson County, SD, Jones County, SD, Lawrence County, SD, Meade County, SD, Mellette County, SD, Oglala Lakota County, SD, Pennington County, SD, Stanley County, SD, Sully County, SD, Todd County, SD
The radar
The North Platte radar (KLNX), 170 km from the middle of the area, began a volume at 19:49 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
13 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 27, 4:29 PM MDT | Severe Thunderstorm Warning | UNR | Bennett | 46 min |
| May 27, 4:35 PM MDT | Severe Thunderstorm Warning | LBF | Cherry | 55 min |
| May 27, 4:48 PM MDT | Severe Thunderstorm Warning | LBF | Cherry | 57 min |
| May 27, 5:12 PM MDT | Severe Thunderstorm Warning | UNR | Todd | 48 min |
| May 27, 5:22 PM MDT | Severe Thunderstorm Warning | LBF | Garden, Grant, Sheridan | 38 min |
| May 27, 5:28 PM MDT | Severe Thunderstorm Warning | LBF | Cherry | 62 min |
| May 27, 5:49 PM MDT | Severe Thunderstorm Warning | LBF | Cherry | 41 min |
| May 27, 5:52 PM MDT | Severe Thunderstorm Warning | LBF | Keith | 38 min |
| May 27, 6:27 PM MDT | Severe Thunderstorm Warning | LBF | Arthur, McPherson | 48 min |
| May 27, 6:33 PM MDT | Severe Thunderstorm Warning | LBF | Cherry | 57 min |
| May 27, 6:37 PM MDT | Tornado Warning | LBF | Hooker | 38 min |
| May 27, 7:07 PM MDT | Severe Thunderstorm Warning | LBF | Logan, McPherson, Thomas | 23 min |
| May 27, 7:33 PM MDT | Severe Thunderstorm Warning | LBF | Blaine, Thomas | 42 min |
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 7.8 hours before the alert went out and 223 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
- 44 J/kg
- Mixed-layer CIN
- -490 J/kg
- Mixed-layer LCL
- 1682 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 63 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, 7:00 PM MDT | Tornado Watch | SPC | Adams, Butler, Clay, Fillmore, Franklin, Furnas and 11 more | 5 hr |
Nearby
Severe Thunderstorm Watches in Nebraska, 2002Severe Thunderstorm Watches in South Dakota, 2002Every severe thunderstorm watch in 2002
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.