Alert archive / Nebraska / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 15, NWS North Platte, NE
NWS North Platte, NE issued this severe thunderstorm warning at May 7, 2002, 2:04 PM CDT for Brown County, Cherry County, Keya Paha County, Nebraska. It was in force for 56 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
- May 7, 2002, 2:04 PM CDT (19:04 UTC)
- Expired
- May 7, 2002, 3:00 PM CDT
- In force
- 56 min
- Issued by
- NWS North Platte, NE
- Area
- Counties, with a storm outline in the text
Counties Brown County, NE, Cherry County, NE, Keya Paha County, NE
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 7, 2:30 PM CDT | Hail 0.75 | Wood Lake, NE | |
| May 7, 2:40 PM CDT | Hail 0.88 | Springview, 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, 7.1 hours before the alert went out and 196 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
- 4 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 482 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 386 m²/s²
- 0-3 km storm-relative helicity
- 565 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KLBF 071904 SVRLBF NEC017-031-103-072000- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NORTH PLATTE NE 204 PM CDT TUE MAY 7 2002 THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WESTERN KEYA PAHA COUNTY IN NORTH CENTRAL NEBRASKA... NORTHWESTERN BROWN COUNTY IN NORTH CENTRAL NEBRASKA... EAST CENTRAL CHERRY COUNTY IN NORTH CENTRAL NEBRASKA... * UNTIL 300 PM CDT... * AT 200 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE MOST DANGEROUS PART OF A SEVERE THUNDERSTORM 8 MILES WEST OF WOOD LAKE...OR ABOUT 17 MILES SOUTHEAST OF VALENTINE...MOVING NORTHEAST AT 40 MPH. * THE SEVERE THUNDERSTORM WILL BE... OVER FARM AND RANGELANDS OF EXTREME NORTHWESTERN BROWN COUNTY OVER FARM AND RANGELANDS OF EXTREME NORTHEASTERN CHERRY COUNTY OVER FARM AND RANGELANDS OF WEST CENTRAL KEYA PAHA COUNTY OVER FARM AND RANGELANDS OF NORTHWESTERN KEYA PAHA COUNTY OVER FARM AND RANGELANDS OF EXTREME NORTH CENTRAL KEYA PAHA 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. REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY FOR RELAY TO THE NATIONAL WEATHER SERVICE. LAT...LON 4269 10052 4256 10036 4308 9948 4328 9973
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 11:33 PM CDT | Severe Thunderstorm Warning | LBF | Lincoln | 42 min |
| May 6, 11:39 PM CDT | Severe Thunderstorm Warning | LBF | Hayes | 36 min |
| May 7, 12:02 AM CDT | Severe Thunderstorm Warning | LBF | Lincoln | 43 min |
| May 7, 12:18 AM CDT | Severe Thunderstorm Warning | LBF | Custer | 42 min |
| May 7, 12:46 AM CDT | Severe Thunderstorm Warning | LBF | Lincoln | 44 min |
| May 7, 12:56 AM CDT | Severe Thunderstorm Warning | LBF | Custer | 49 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.