Alert archive / Nebraska / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 217, NWS North Platte, NE
NWS North Platte, NE issued this severe thunderstorm warning at Aug 26, 2002, 12:54 PM MDT for Chase County, Nebraska. It was in force for 66 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 26, 2002, 12:54 PM MDT (18:54 UTC)
- Expired
- Aug 26, 2002, 2:00 PM MDT
- In force
- 66 min
- Issued by
- NWS North Platte, NE
- Area
- Counties, with a storm outline in the text
County Chase County, NE
The radar
The Goodland radar (KGLD), 132 km from the middle of the area, began a volume at 18:54 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 was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 26, 12:57 PM MDT | Hail 1.75 | Imperial, NE | |
| Aug 26, 1:19 PM MDT | Hail 1.75 | Imperial, NE |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 6.9 hours before the alert went out and 107 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
- 1929 J/kg
- Mixed-layer CIN
- -185 J/kg
- Mixed-layer LCL
- 1191 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 122 m²/s²
- 0-3 km storm-relative helicity
- 120 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.3
The text
As transmitted, in the capitals the NWS used until 2016.
061 WUUS53 KLBF 261854 SVRLBF NEC029-262000- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NORTH PLATTE NE 1254 PM MDT MON AUG 26 2002 THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CHASE COUNTY IN SOUTHWEST NEBRASKA... * UNTIL 200 PM MDT... * AT 1251 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE MOST DANGEROUS PART OF A SEVERE THUNDERSTORM 5 MILES SOUTH OF ENDERS...OR ABOUT 12 MILES SOUTHEAST OF IMPERIAL...STATIONARY. * THE SEVERE THUNDERSTORM WILL BE... OVER FARM AND RANGELANDS OF EXTREME SOUTHEASTERN CHASE COUNTY IF YOU ARE IN THE PATH OF THIS STORM...SEEK SHELTER IN A SMALL INTERIOR ROOM AWAY FROM WINDOWS. A BASEMENT OFFERS THE BEST PROTECTION. THIS THUNDERSTORM IS CAPABLE OF PRODUCING LARGE HAIL AND DAMAGING WINDS. REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE. LAT...LON 4070 10135 4069 10204 4034 10204 4035 10135
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 26, 3:26 AM MDT | Severe Thunderstorm Warning | LBF | Keya Paha | 64 min |
| Aug 26, 3:49 AM MDT | Severe Thunderstorm Warning | LBF | Rock | 56 min |
| Aug 26, 4:14 AM MDT | Severe Thunderstorm Warning | LBF | Rock | 31 min |
| Aug 26, 4:45 AM MDT | Severe Thunderstorm Warning | LBF | Holt, Rock | 60 min |
| Aug 26, 5:07 AM MDT | Severe Thunderstorm Warning | LBF | Holt | 53 min |
| Aug 26, 6:54 AM MDT | Severe Thunderstorm Warning | LBF | Cherry | 51 min |
| Aug 26, 7:22 AM MDT | Severe Thunderstorm Warning | LBF | Blaine, Brown | 53 min |
| Aug 26, 8:05 AM MDT | Severe Thunderstorm Warning | LBF | Custer, Loup | 55 min |
| Aug 26, 8:12 AM MDT | Severe Thunderstorm Warning | LBF | Rock | 48 min |
| Aug 26, 8:24 AM MDT | Severe Thunderstorm Warning | LBF | Blaine | 36 min |
| Aug 26, 12:17 PM MDT | Severe Thunderstorm Warning | LBF | Cherry | 58 min |
| Aug 26, 12:36 PM MDT | Tornado Warning | LBF | Cherry | 39 min |
| Aug 26, 1:17 PM MDT | Tornado Warning | LBF | Cherry | 58 min |
| Aug 26, 2:16 PM MDT | Severe Thunderstorm Warning | LBF | Cherry | 59 min |
| Aug 26, 2:29 PM MDT | Severe Thunderstorm Warning | LBF | Sheridan | 61 min |
| Aug 26, 3:03 PM MDT | Tornado Warning | LBF | Sheridan | 57 min |
| Aug 26, 3:03 PM MDT | Tornado Warning | LBF | Sheridan | 57 min |
| Aug 26, 3:15 PM MDT | Severe Thunderstorm Warning | LBF | Cherry | 60 min |
| Aug 26, 3:49 PM MDT | Severe Thunderstorm Warning | LBF | Grant, Hooker, Thomas | 56 min |
| Aug 26, 4:03 PM MDT | Severe Thunderstorm Warning | LBF | Sheridan | 57 min |
| Aug 26, 4:29 PM MDT | Severe Thunderstorm Warning | LBF | Sheridan | 61 min |
| Aug 26, 4:47 PM MDT | Severe Thunderstorm Warning | LBF | Grant, Hooker, Thomas | 58 min |
| Aug 26, 4:55 PM MDT | Flash Flood Warning | LBF | Grant | 2 hr |
| Aug 26, 5:15 PM MDT | Severe Thunderstorm Warning | LBF | Garden | 60 min |
| Aug 26, 5:31 PM MDT | Severe Thunderstorm Warning | LBF | Sheridan | 44 min |
| Aug 26, 5:42 PM MDT | Severe Thunderstorm Warning | LBF | Arthur, McPherson | 63 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 2002Every severe thunderstorm warning 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.