Alert archive / Nebraska / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 285, NWS North Platte, NE
NWS North Platte, NE issued this severe thunderstorm warning at Aug 29, 2001, 7:45 PM CDT for Brown County, Nebraska. It was in force for 45 min. 1 report came from inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.
The facts
- Issued
- Aug 29, 2001, 7:45 PM CDT (00:45 UTC)
- Expired
- Aug 29, 2001, 8:30 PM CDT
- In force
- 45 min
- Issued by
- NWS North Platte, NE
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Brown County, NE
The radar
The North Platte radar (KLNX), 56 km from the middle of the area, began a volume at 00:49 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 29, 8:00 PM CDT | Hail 0.75 | Ainsworth, 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, 0.8 hours before the alert went out and 127 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
- 1726 J/kg
- Mixed-layer CIN
- -60 J/kg
- Mixed-layer LCL
- 2436 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 93 m²/s²
- 0-3 km storm-relative helicity
- 247 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.8
The text
As transmitted, in the capitals the NWS used until 2016.
457 WUUS53 KLBF 300046 SVRLBF NEC017-300130- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE NORTH PLATTE NE 745 PM CDT WED AUG 29 2001 THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN BROWN COUNTY IN NORTH CENTRAL NEBRASKA... * UNTIL 830 PM CDT... * AT 744 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER EXTREME SOUTH CENTRAL BROWN COUNTY...OR ABOUT 14 MILES NORTHWEST OF BREWSTER...MOVING SOUTH AT 10 MPH. * THE SEVERE THUNDERSTORM WILL BE... OVER FARM AND RANGELANDS OF EXTREME SOUTH CENTRAL BROWN COUNTY EAST OF ELSMERE 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. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM CDT WEDNESDAY EVENING FOR NORTH CENTRAL NEBRASKA. LAT...LON 4224 9990 4217 10013 4210 10017 4210 9969 $$ WERT
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 29, 7:00 PM CDT | Severe Thunderstorm Warning | LBF | Hooker, Thomas | 60 min |
| Aug 29, 7:06 PM CDT | Severe Thunderstorm Warning | LBF | Arthur, Grant | 54 min |
| Aug 29, 7:37 PM CDT | Severe Thunderstorm Warning | LBF | Blaine, Thomas | 53 min |
| Aug 29, 8:14 PM CDT | Severe Thunderstorm Warning | LBF | Hooker, Logan, McPherson, Thomas | 61 min |
| Aug 29, 8:30 PM CDT | Severe Thunderstorm Warning | LBF | Blaine | 60 min |
| Aug 29, 8:44 PM CDT | Severe Thunderstorm Warning | LBF | Lincoln, McPherson | 61 min |
| Aug 29, 9:20 PM CDT | Severe Thunderstorm Warning | LBF | Brown | 55 min |
| Aug 29, 10:02 PM CDT | Severe Thunderstorm Warning | LBF | Keith, Lincoln | 43 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 2001Every severe thunderstorm warning in 2001
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.