Alert archive / Nebraska / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 14, NWS North Platte, NE
NWS North Platte, NE issued this severe thunderstorm warning at May 7, 2002, 12:56 AM CDT for Custer County, Nebraska. It was in force for 49 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, 12:56 AM CDT (05:56 UTC)
- Expired
- May 7, 2002, 1:45 AM CDT
- In force
- 49 min
- Issued by
- NWS North Platte, NE
- Area
- Counties, with a storm outline in the text
County Custer County, NE
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 7, 1:00 AM CDT | Hail 1.75 | Arnold, NE | |
| May 7, 1:05 AM CDT | Hail 0.88 | Callaway, 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 00:00Z, 5.9 hours before the alert went out and 80 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
- 128 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 3296 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 47 m²/s²
- 0-3 km storm-relative helicity
- 92 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS53 KLBF 070556 SVRLBF NEC041-070645- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NORTH PLATTE NE 1256 AM CDT TUE MAY 7 2002 THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CENTRAL CUSTER COUNTY IN CENTRAL NEBRASKA... * UNTIL 145 AM CDT... * AT 1251 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THE MOST DANGEROUS PART OF A SEVERE THUNDERSTORM 4 MILES NORTHWEST OF CALLAWAY...OR ABOUT 14 MILES SOUTHEAST OF ARNOLD...MOVING NORTHEAST AT 30 MPH. * THE SEVERE THUNDERSTORM WILL BE... OVER MERNA AROUND 115 AM CDT... 7 MILES NORTHWEST OF BROKEN BOW AROUND 120 AM CDT... 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 4164 10011 4127 10016 4129 9925 4163 9926
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, 2:04 PM CDT | Severe Thunderstorm Warning | LBF | Brown, Cherry, Keya Paha | 56 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.