Alert archive / Nebraska / Flash Flood Warnings in 1997

Flash Flood Warning 1, NWS North Platte, NE

June 15, 1997Chase County, Perkins County, Nebraska

NWS North Platte, NE issued this flash flood warning at Jun 15, 1997, 1:04 AM MDT for Chase County, Perkins 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 15, 1997, 1:04 AM MDT (07:04 UTC)
Expired
Jun 15, 1997, 4:00 AM MDT
In force
3 hr
Issued by
NWS North Platte, NE
Area
Whole counties

Counties Chase County, NE, Perkins County, NE

The radar

The Goodland radar (KGLD), 147 km from the middle of the area, began a volume at 07:03 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

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 7.1 hours before the alert went out and 103 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-pSkew-T log-p diagram, N. Platte/Lee Bi, NE at 00:00Z on 1997-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 18 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, N. Platte/Lee Bi, NE at 00:00Z on 1997-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
18 J/kg
Mixed-layer CIN
-132 J/kg
Mixed-layer LCL
2295 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
102 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 150709 COR
FFWLBF
NEC029-111-135-151000-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING...CORRECTION
NATIONAL WEATHER SERVICE NORTH PLATTE NE
204 AM CDT (104 AM MDT) SUN JUN 15 1997

THE NATIONAL WEATHER SERVICE IN NORTH PLATTE NE HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 400 AM MDT (500 AM CDT)
FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN SOUTHWESTERN NEBRASKA

   ...CHASE COUNTY
   ...SOUTHERN LINCOLN COUNTY
   ...PERKINS COUNTY

AT 155 AM CDT...NORTH PLATTE DOPPLER RADAR INDICATED RAINFALL
AMOUNTS EXCEEDING THREE INCHES OVER PERKINS COUNTY STRETCHING INTO
SOUTHERN LINCOLN COUNTY.  THE AREA OF CONCERN IS SOUTH OF A LINE
FROM VENANGO TO JUST NORTH OF WALLACE AND DICKENS.  STORM MOVEMENT
IS TO THE EAST AT 20 MPH.

CONTINUED TRAINING OF THUNDERSTORMS CAN BE EXPECTED IN THIS AREA
THROUGH 4 AM CDT.  ADDITIONAL RAINFALL AMOUNTS OF ONE TO TWO INCHES
CAN BE EXPECTED IN THIS AREA.  PONDING OF WATER IN LOW LYING AREAS
IS LIKELY.  RAPID RISES IN SMALL STREAMS AND CREEKS ARE ALSO LIKELY.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGER OF FLOODING.

DURING THE DARKNESS OF NIGHT...FLOODED SECTIONS OF ROAD MAY NOT BE
VISIBLE TO MOTORISTS. SOME ROADWAYS MAY EVEN BE CLOSED.

MICHELS/DAUGHERTY

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 14, 7:37 PM MDTSevere Thunderstorm WarningLBFSheridan63 min
Jun 14, 8:35 PM MDTSevere Thunderstorm WarningLBFDeuel30 min
Jun 15, 1:04 AM MDTFlash Flood WarningLBFLincoln3 hr
Jun 15, 2:11 PM MDTSevere Thunderstorm WarningLBFCherry49 min
Jun 15, 3:00 PM MDTSevere Thunderstorm WarningLBFCherry60 min
Jun 15, 3:58 PM MDTSevere Thunderstorm WarningLBFCherry, Thomas47 min
Jun 15, 5:07 PM MDTSevere Thunderstorm WarningLBFBlaine33 min
Jun 15, 5:13 PM MDTSevere Thunderstorm WarningLBFCuster62 min

Nearby

Flash Flood Warnings in Nebraska, 1997Every 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.