Alert archive / Nebraska / Tornado Warnings in 1997

Tornado Warning 1, NWS North Platte, NE

May 6, 1997Blaine County, Brown County, Nebraska

NWS North Platte, NE issued this tornado warning at May 6, 1997, 8:13 PM CDT for Blaine County, Brown County, Nebraska. It was in force for 52 min. 1 report 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: May 6, 1997, 8:13 PM CDT (01:13 UTC)
Expired: May 6, 1997, 9:05 PM CDT
In force: 52 min
Issued by: NWS North Platte, NE
Area: Whole counties

Counties Blaine County, NE, Brown County, NE

The radar

The North Platte radar (KLNX), 57 km from the middle of the area, began a volume at 01:12 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
May 6, 8:30 PM CDT	Hail 1.25	Brewster, 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, 1.2 hours before the alert went out and 128 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 447 J/kg
Mixed-layer CIN: -94 J/kg
Mixed-layer LCL: 2513 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 64 m²/s²
0-3 km storm-relative helicity: 214 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KLBF 070114 RRA
TORLBF
NEC009-017-070200-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
813 PM CDT TUE MAY 6 1997

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE NE HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 905 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN NORTH CENTRAL NEBRASKA

   ...NORTHERN BLAINE COUNTY
   ...SOUTHERN BROWN COUNTY
 
AT 811 PM CDT...A POSSIBLE TORNADO WAS INDICATED BY NORTH PLATTE
DOPPLER RADAR 31 MILES SOUTH SOUTHWEST OF AINSWORTH OR 13 MILES
NORTH NORTHWEST OF BREWSTER MOVING EAST SOUTHEAST AT 15 MPH.

THE TORNADO IS EXPECTED TO REMAIN IN RURAL AREAS OF SOUTHERN BROWN
AND NORTHERN BLAINE COUNTIES.
 
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.


JWS

The office that day

Everything else NWS North Platte, NE issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 6, 7:03 PM CDT	Severe Thunderstorm Warning	LBF	Brown	62 min
May 6, 8:04 PM CDT	Severe Thunderstorm Warning	LBF	Blaine, Brown	61 min
May 6, 9:00 PM CDT	Severe Thunderstorm Warning	LBF	Loup	65 min
May 6, 9:43 PM CDT	Severe Thunderstorm Warning	LBF	Custer	47 min
May 6, 10:29 PM CDT	Tornado Warning	LBF	Custer	36 min

Nearby

Tornado Warnings in Nebraska, 1997 Every tornado warning in 1997 Tornadoes 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.