Alert archive / Nebraska / Flash Flood Warnings in 1997

Flash Flood Warning 3, NWS North Platte, NE

June 25, 1997Frontier County, Nebraska

NWS North Platte, NE issued this flash flood warning at Jun 25, 1997, 7:30 PM CDT for Frontier County, Nebraska. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 25, 1997, 7:30 PM CDT (00:30 UTC)
Expired: Jun 25, 1997, 10:30 PM CDT
In force: 3 hr
Issued by: NWS North Platte, NE
Area: Whole counties

County Frontier County, NE

The radar

The North Platte radar (KLNX), 160 km from the middle of the area, began a volume at 00:33 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.

The nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 0.5 hours before the alert went out and 252 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: 179 J/kg
Mixed-layer CIN: -66 J/kg
Mixed-layer LCL: 2584 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 35 m²/s²
0-3 km storm-relative helicity: 175 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLBF 260031
FFWLBF
NEC063-260330-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
730 PM CDT WED JUN 25 1997

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE NE HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 1030 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN SOUTHWESTERN NEBRASKA

   ...FRONTIER COUNTY
 
AT 725 PM CDT...SPOTTERS REPORTED WATER 30 INCHES DEEP OVER HIGHWAY
83 NEAR MAYWOOD...AND FLOODING ALONG MEDICINE CREEK.  THIS HIGH
WATER WILL SPREAD SOUTHEAST IN MEDICINE CREEK AND EFFECT THE TOWNS
OF MAYWOOD...CURTIS...AND STOCKVILLE.  RESIDENTS NEAR THE CREEK
SHOULD EXPECT BE PREPARED FOR RAPIDLY RISING WATER...AND MOVE TO
HIGHER GROUND QUICKLY.

DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD! 
MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES.  DO NOT ATTEMPT TO
CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY.
NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT.
TO ESCAPE RISING WATER MOVE TO HIGHER GROUND.

&

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 25, 7:36 PM CDT	Severe Thunderstorm Warning	LBF	Frontier	64 min

Nearby

Flash Flood Warnings in Nebraska, 1997 Every flash flood warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.