Alert archive / Nebraska / Flash Flood Warnings in 1993

Flash Flood Warning 7, NWS North Platte, NE

July 8, 19934 counties in Nebraska

NWS North Platte, NE issued this flash flood warning at Jul 8, 1993, 10:42 PM CDT for 4 counties in Nebraska. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Jul 8, 1993, 10:42 PM CDT (03:42 UTC)
Expired
Jul 9, 1993, 1:45 AM CDT
In force
3 hr
Issued by
NWS North Platte, NE
Area
Whole counties

Counties Colfax County, NE, Madison County, NE, Platte County, NE, Stanton County, NE

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 3.7 hours before the alert went out and 94 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 1993-07-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3257 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Omaha, NE at 00:00Z on 1993-07-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 244 square meters per square second.19395878Sfc1 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
3257 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
692 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
244 m²/s²
0-3 km storm-relative helicity
341 m²/s²
Significant tornado parameter
6.3
Supercell composite
27.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KOFK 090342
FFWOFK
NEC037-119-141-167-090645-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORFOLK NE
1042 PM CDT THU JUL 8 1993
 
THE NATIONAL WEATHER SERVICE IN NORFOLK HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  145 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHEAST NEBRASKA
 
   ...COLFAX COUNTY...MADISON COUNTY...PLATTE COUNTY
   ...STANTON COUNTY
 
VERY HEAVY RAIN CONTINUED ACROSS MOST OF MADISON...PLATTE...STANTON AND
COLFAX COUNTIES AT 1040 PM CDT AND NUMEROUS SMALL STREAMS AND CREEKS ARE
OUT OF THEIR BANKS. THE JUNCTION OF HIGHWAY 32 AND 15 IN SOUTHEAST
STANTON COUNTY WAS BEING CLOSED DUE TO HIGH WATER. WATER WAS ACROSS OLD
HIGHWAY 91 EAST AND WEST OF HOWELLS IN NORTHERN COLFAX COUNTY. THE
INTENSE RAINFALL WILL CONTINUE FOR SEVERAL HOURS AND ALL
STREAMS...CREEKS AND RIVERS WILL CONTINUE TO RISE.
 
IF FLASH FLOODING IS OBSERVED...ACT QUICKLY.  MOVE UP TO ESCAPE
FLOOD WATERS.  DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER
BEGINS RISING.  BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER
TO RECOGNIZE THE DANGERS OF FLASH FLOODING.
 
BOWMAN
 
&

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, Jul 8, 5:17 PM CDT, 5 hours 25 minutes before
NEZ006-007-012-016-017-082330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
415 PM MDT THU JUL 8 1993

...INTENSE THUNDERSTORMS WILL SOON MOVE INTO SOUTHWEST NEBRASKA...

AT 414 PM CDT AN INTENSE THUNDERSTORM WAS ABOUT 15 MILES SOUTHWEST OF
VENANGO AND MOVING EAST AT 35 MPH.  THIS IS ABOUT 80 MILES SOUTHWEST
OF NORTH PLATTE.  THIS STORM COULD CAUSE HAIL AND STRONG WINDS AS IT
MOVES EAST ACROSS SOUTH PERKINS AND CHASE COUNTY B|ETWEEN 415 AND 615
MDT.

A TORNADO WATCH IS IN EFFECT FOR SOUTHWEST NEBRASKA.

RC
Special weather statement, Jul 8, 5:20 PM CDT, 5 hours 22 minutes before
NEZ006-007-012-016-017-082330-

SPECIAL WEATHER STATEMENT...CORRECTED FOR MDT...
NATIONAL WEATHER SERVICE NORTH PLATTE NE
415 PM MDT THU JUL 8 1993

...INTENSE THUNDERSTORMS WILL SOON MOVE INTO SOUTHWEST NEBRASKA...

AT 414 PM MDT AN INTENSE THUNDERSTORM WAS ABOUT 15 MILES SOUTHWEST OF
VENANGO AND MOVING EAST AT 35 MPH.  THIS IS ABOUT 80 MILES SOUTHWEST
OF NORTH PLATTE.  THIS STORM COULD CAUSE HAIL AND STRONG WINDS AS IT
MOVES EAST ACROSS SOUTH PERKINS AND CHASE COUNTY BETWEEN 415 AND 615
MDT.

A TORNADO WATCH IS IN EFFECT FOR SOUTHWEST NEBRASKA.

RC

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 8, 7:05 PM CDTSevere Thunderstorm WarningLBFCuster55 min
Jul 8, 7:17 PM CDTSevere Thunderstorm WarningLBFLoup28 min
Jul 8, 7:19 PM CDTSevere Thunderstorm WarningLBFFrontier26 min
Jul 8, 7:44 PM CDTSevere Thunderstorm WarningLBFLoup31 min
Jul 8, 7:58 PM CDTSevere Thunderstorm WarningLBFCuster32 min
Jul 8, 8:42 PM CDTFlash Flood WarningLBFCuming3 hr
Jul 8, 9:50 PM CDTSevere Thunderstorm WarningLBFBoone, Madison, Platte55 min
Jul 8, 10:35 PM CDTSevere Thunderstorm WarningLBFColfax55 min
Jul 8, 11:11 PM CDTFlash Flood WarningLBFCuming3 hr
Jul 8, 11:11 PM CDTFlash Flood WarningLBFBoone3 hr

Nearby

Flash Flood Warnings in Nebraska, 1993Every flash flood warning in 1993

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.