Alert archive / Nebraska / Flash Flood Warnings in 1990

Flash Flood Warning 7, NWS North Platte, NE

June 15, 1990Antelope County, Nebraska

NWS North Platte, NE issued this flash flood warning at Jun 15, 1990, 5:08 AM CDT for Antelope County, Nebraska. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Jun 15, 1990, 5:08 AM CDT (10:08 UTC)
Expired
Jun 15, 1990, 8:15 AM CDT
In force
3 hr
Issued by
NWS North Platte, NE
Area
Whole counties

County Antelope County, NE

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 10.1 hours before the alert went out and 170 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, Omaha, NE at 00:00Z on 1990-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Omaha, NE at 00:00Z on 1990-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 88 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3606 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
88 m²/s²
0-3 km storm-relative helicity
209 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 KOFK 151008
FFWOFK
NEC003-141-037-151315-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
FLASH FLOOD WARNING 
NATIONAL WEATHER SERVICE NORFOLK NE
508 AM CDT FRI JUN 15 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING 
EFFECTIVE UNTIL 815 AM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE NORTHEAST PART OF NEBRASKA
      ANTELOPE...PLATTE...COLFAX

THE FLASH FLOOD WARNING FOR PLATTE AND COLFAX COUNTIES HAS BEEN
EXTENDED AND A FLASH FLOOD WARNING FOR ANTELOPE COUNTY HAS BEEN
ADDED.  FLOODING IS CONTINUING ALONG SHELL CREEK IN PLATE COUNTY
WITH THE MOST SERIOUS FLOODING AT PLATTE CENTER.
RAINFALL IN EXCESS OF 3 INCHES HAS BEEN ESTIMATED OVERNIGHT IN
ANTELOPE COUNTY AND ALREADY FULL TRIBUTARIES OF MAPLE CREEK IN
COLFAX COUNTY WILL CONTINUE TO RISE.  ADDITIONAL RAIN IS ON THE WAY

A FLASH FLOOD WARNING MEANS FLOODING IS OCCURRING OR IS IMMINENT.
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.

 SMITH

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jun 15, 12:03 AM CDT, 5 hours 5 minutes before
NEZ006-016-150600-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1100 PM CDT THU JUN 14 1990

...TORNADO WATCH FOR SOUTHWEST NEBRASKA UNTIL MIDNIGHT MDT...
...SEVERE THUNDERSTORM WATCH FOR CENTRAL AND PARTS OF SOUTHWEST
NEBRASKA UNTIL 3 AM CDT FRIDAY...

AT 1050 PM MDT THUNDERSTORMS WERE LOCATED IN EASTERN LOGAN COUNTY INTO
WESTERN MCPHERSON COUNTY. THE STRONGEST THUNDERSTORM WAS LOCATED 45 MILES
NORTHWEST OF NORTH PLATTE NEBRASKA. A THUNDERSTORM HAS MOVED INTO WESTERN
DUNDY COUNTY FROM COLORADO AND IS LOCATED 20 MILES NORTHWEST OF BENKELMAN
OR 80 MILES SOUTHWEST OF NORTH PLATTE NEBRASKA.

THE THUNDERSTORMS WERE MOVING EAST AT 25 MPH.

THESE THUNDERSTORMS MAY CONTAINm BRIEF HEAVY RAIN...SMALL HAIL...
AND GUSTY WINDS.
SMALLFIELD
Special weather statement, Jun 15, 12:11 AM CDT, 4 hours 57 minutes before
NEZ006-016-150600-

SPECIAL WEATHER STATEMENT...CORRECTED ON HEADER TIME...
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1100 PM MDT THU JUN 14 1990

...TORNADO WATCH FOR SOUTHWEST NEBRASKA UNTIL MIDNIGHT MDT...
...SEVERE THUNDERSTORM WATCH FOR CENTRAL AND PARTS OF SOUTHWEST
NEBRASKA UNTIL 3 AM CDT FRIDAY...

AT 1050 PM MDT THUNDERSTORMS WERE LOCATED IN EASTERN LOGAN COUNTY INTO
WESTERN MCPHERSON COUNTY. THE STRONGEST THUNDERSTORM WAS LOCATED 45 MILES
NORTHWEST OF NORTH PLATTE NEBRASKA. A THUNDERSTORM HAS MOVED INTO WESTERN
DUNDY COUNTY FROM COLORADO AND IS LOCATED 20 MILES NORTHWEST OF BENKELMAN
OR 80 MILES SOUTHWEST OF NORTH PLATTE NEBRASKA.

THE THUNDERSTORMS WERE MOVING EAST AT 25 MPH.y

THESE THUNDERSTORMS MAY CONTAIN BRIEF HEAVY RAIN...SMALL HAIL...
AND GUSTY WINDS.
SMALLFIELD
Special weather statement, Jun 15, 1:06 AM CDT, 4 hours 2 minutes before
NEZ007-150700-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1 AM CDT FRI JUN 15 1990

...TORNADO WATCH FOR SOUTHWEST NEBRASKA HAS EXPIRED...
...SEVERE THUNDERSTORM WATCH FOR CENTRAL AND PARTS OF SOUTHWEST
NEBRASKA UNTIL 3 AM CDT FRIDAY...

AT 1 AM CDT THUNDERSTORMS WERE LOCATED IN NORTHERN CUSTER COUNTY NEBRASKA.
THE THUNDERSTORMS WERE FROM 40 TO 60 MILES NORTHEAST OF NORTH PLATTE
NEBRASKA.

THE THUNDERSTORMS WERE MOVING EAST AT 25 MPH.

THESE THUNDERSTORMS MAY CONTAIN BRIEF HEAVY RAIN...SMALL HAIL...
AND GUSTY WINDS.

SMALLFIELD

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 14, 7:29 PM CDTSevere Thunderstorm WarningLBFAntelope61 min
Jun 14, 8:12 PM CDTSevere Thunderstorm WarningLBFAntelope, Pierce48 min
Jun 14, 8:12 PM CDTSevere Thunderstorm WarningLBFCedar48 min
Jun 14, 8:57 PM CDTSevere Thunderstorm WarningLBFMadison, Wayne48 min
Jun 14, 9:44 PM CDTSevere Thunderstorm WarningLBFMadison, Stanton46 min
Jun 14, 10:24 PM CDTSevere Thunderstorm WarningLBFColfax, Madison, Platte, Stanton51 min
Jun 14, 10:48 PM CDTFlash Flood WarningLBFColfax, Platte, Stanton3 hr
Jun 14, 10:48 PM CDTFlash Flood WarningLBFMadison3 hr
Jun 14, 11:17 PM CDTSevere Thunderstorm WarningLBFAntelope28 min
Jun 15, 1:54 AM CDTFlash Flood WarningLBFColfax, Madison, Platte, Stanton3 hr
Jun 15, 5:08 AM CDTFlash Flood WarningLBFColfax, Platte3 hr
Jun 15, 6:02 PM CDTSevere Thunderstorm WarningLBFChase, Dundy58 min
Jun 15, 6:14 PM CDTSevere Thunderstorm WarningLBFKeith61 min
Jun 15, 6:26 PM CDTTornado WarningLBFPerkins34 min
Jun 15, 6:37 PM CDTTornado WarningLBFHayes38 min

Nearby

Flash Flood Warnings in Nebraska, 1990Every flash flood warning in 1990

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.