Alert archive / Nebraska / Tornado Warnings in 1997
Tornado Warning 15, NWS North Platte, NE
NWS North Platte, NE issued this tornado warning at Jun 30, 1997, 6:05 PM CDT for Brown County, Nebraska. It was in force for 35 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jun 30, 1997, 6:05 PM CDT (23:05 UTC)
- Expired
- Jun 30, 1997, 6:40 PM CDT
- In force
- 35 min
- Issued by
- NWS North Platte, NE
- Area
- Whole counties
County Brown County, NE
The radar
The North Platte radar (KLNX), 75 km from the middle of the area, began a volume at 23:05 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 |
|---|---|---|---|
| Jun 30, 6:18 PM CDT | Hail 1.75 | Johnstown, NE | |
| Jun 30, 6:20 PM CDT | Hail 1.75 | Johnstown, 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 30, 5:00 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 11.1 hours before the alert went out and 155 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
- 1288 J/kg
- Mixed-layer CIN
- -218 J/kg
- Mixed-layer LCL
- 1066 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 75 m²/s²
- 0-3 km storm-relative helicity
- 128 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted, in the capitals the NWS used until 2016.
813 WFUS1 KLBF 302306 RRA TORLBF NEC017-302340- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE NORTH PLATTE NE 605 PM CDT MON JUN 30 1997 THE NATIONAL WEATHER SERVICE IN NORTH PLATTE NE HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 640 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTH CENTRAL NEBRASKA ...WESTERN BROWN COUNTY AT 604 PM CDT...A POSSIBLE TORNADO WAS INDICATED BY NORTH PLATTE DOPPLER RADAR 15 MILES WEST OF AINSWORTH OR 4 MILES WEST OF JOHNSTOWN MOVING EAST AT 10 MPH. THE TORNADO IS EXPECTED TO BE NEAR... JOHNSTOWN BY 620 PM CDT IF YOU ARE IN THE PATH OF THIS TORNADO TAKE SHELTER IMMEDIATELY. THE SAFEST PLACE IN A HOME OR BUSINESS IS AN INTERIOR ROOM ON THE LOWEST FLOOR POSSIBLE. AVOID WINDOWS. DAUGHERTY
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 4:35 PM CDT | Severe Thunderstorm Warning | LBF | Cherry | 50 min |
| Jun 30, 5:16 PM CDT | Severe Thunderstorm Warning | LBF | Cherry | 49 min |
| Jun 30, 5:50 PM CDT | Severe Thunderstorm Warning | LBF | Brown | 65 min |
| Jun 30, 6:16 PM CDT | Severe Thunderstorm Warning | LBF | Cherry | 64 min |
| Jun 30, 6:42 PM CDT | Tornado Warning | LBF | Brown | 33 min |
Nearby
Tornado Warnings in Nebraska, 1997Every tornado warning in 1997Tornadoes in 1997
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.