Alert archive / Nebraska / Flash Flood Warnings in 1993

Flash Flood Warning 3, NWS North Platte, NE

May 7, 1993Colfax County, Stanton County, Nebraska

NWS North Platte, NE issued this flash flood warning at May 7, 1993, 10:47 PM CDT for Colfax County, Stanton County, Nebraska. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
May 7, 1993, 10:47 PM CDT (03:47 UTC)
Expired
May 8, 1993, 1:45 AM CDT
In force
3 hr
Issued by
NWS North Platte, NE
Area
Whole counties

Counties Colfax County, NE, Stanton County, NE

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 3.8 hours before the alert went out and 80 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 1993-05-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1984 joules per kilogram.LCLLFCEL10008507005003002001001 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 1993-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 206 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
1984 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
835 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
206 m²/s²
0-3 km storm-relative helicity
280 m²/s²
Significant tornado parameter
2.1
Supercell composite
12.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KOFK 080347
FFWOFK
NEC037-167-080645-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
FLASH FLOOD WARNING 
NATIONAL WEATHER SERVICE NORFOLK NE
1047 PM CDT FRI MAY 7 1993

THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING 
EFFECTIVE UNTIL 145 AM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE NORTHEAST PART OF NEBRASKA
      NORTHERN COLFAX...SOUTHEAST STANTON

AT 1030 PM CDT THE EAST FORK OF MAPLE CREEK IN SOUTHEAST STANTON
AND NORTHERN COLFAX COUNTY WAS OUT ITS BANK JUST NORTH OF HOWELLS.
THIS AREA HAS RECEIVED 3 INCHES OF RAIN DURING THE LAST FEW HOURS.
OLD HIGHWAY 91 IS REPORTED TO BE UNDERWATER WITH MANY OTHER COUNTY
ALSO UNDERWATER.

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.

 A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 4 AM CDT SATURDAY

 NAME OF ISSUER

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, May 7, 5:14 PM CDT, 5 hours 33 minutes before
NEZ006-007-012-016-017-072315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
515 PM CDT FRI MAY 7 1993

...LONE THUNDERSTORM DEVELOPS OVER SOUTHWEST NEBRASKA...

AT 510 PM CDT A LONE THUNDERSTORM WAS LOCATED JUST SOUTH OF BENKELMAN
OR ABOUT 40 MILES NORTH OF GOODLAND KANSAS.  THIS THUNDERSTORM WILL
MOVE NORTHEAST AND SHOULD JUST CATCH THE COMMUNITY OF BENKELMAN BEFORE
MOVING OUT ONTO OPEN COUNTRY.  BRIEF HEAVY RAIN IS LIKELY WITH THIS
THUNDERSTORM AS IT MOVES NORTHEAST.

OTHER THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS EVENING ACROSS
SOUTHWEST AND WEST CENTRAL NEBRASKA WITH THE THUNDERSTORMS MOVING
NORTHEAST INTO A MORE MOIST UNSTABLE AIRMASS.

RESIDENTS ACROSS SOUTH`WEST AND WEST CENTRAL NEBRASKA SHOULD BE AWARE OF
RAPIDLY CHANGING WEATHER CONDITIONS WITH APPROACHING THUNDERSTORMS.

MONSON
Special weather statement, May 7, 6:46 PM CDT, 4 hours 1 minute before
NEZ006-007-012-016-017-080015-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
545 PM MDT FRI MAY 7 1993

...LONE THUNDERSTORM CONTINUES MOVING NORTH ACROSS SOUTHWEST
   NEBRASKA...

AT 535 PM MDT A STRONG THUNDERSTORM WAS LOCATED ABOUT 10 MILES
SOUTHEAST OF IMPERIAL OR ABOUT 60 MILES SOUTHWEST OF NORTH PLATTE.
THIS THUNDERSTORM HAS INTENSIFIED A LITTLE AND IS LIKELY PRODUCING
BRIEF HEAVY RAIN. THIS THUNDERSTORM WILL MOVE JUST TO THE EAST OF
IMPERIAL.

OTHER THUNDERSTORMS WHICH HAVE BEEN DEVELOPING ACROSS NORTHEAST
COLORADO WILL BE MOVING INTO SOUTHWEST NEBRASKA BY 615 PM MDT.

THESE THUNDERSTORMS HAVE BEEN MOVING NORTH AT 25 MILES AN HOUR.
RESIDENTS ACROSS SOUTHWESTV AND WEST CENTRAL NEBRASKA SHOULD BE AWARE OF
RAPIDLY CHANGING WEATHER CONDITIONS WITH THESE APPROACHING
THUNDERSTORMS.

MONSON
Special weather statement, May 7, 7:47 PM CDT, 3 hours before
NEZ006-007-012-016-017-080145-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
648 PM MDT FRI MAY 7 1993

...THUNDERSTORMS MOVING ACROSS WEST CHASE COUNTY...

AT 635 PM MDT A SMALL AREA OF THUNDERSTORMS WAS MOVING NORTHEAST ACROSS
WEST CHASE COUNTY.  THE AREA OF THUNDERSTORMS WAS ABOUT 15 MILES
NORTHWEST OF IMPERIAL TO ABOUT 5 MILES SOUTH OF IMPERIAL.  THIS WOULD
BE ABOUT 60 MILES SOUTHWEST OF NORTH PLATTE.  BRIEF HEAVY RAIN IS
POSSIBLE WITH THESE THUNDERSTORMS AS THEY MOVE NORTHEAST.

THIS AREA OF THUNDERSTORMS HAS BEEN MOVING NORTHEAST AT 30 MILES AN
HOUR.

MONSON
Special weather statement, May 7, 10:42 PM CDT, 5 minutes before
NEZ006-007-012-016-017-080645-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1042 PM CDT FRI MAY 7 1993

...STRONG THUNDERSTORMS MOVING NORTHWARD ACROSS SOUTHWEST AND WEST
   CENTRAL NEBRASKA...

AT 1045 PM CDT A 75 MILE WIDE AREA OF STRONG THUNDERSTORMS WERE MOVING
NORTHEAST ACROSS THE REGION.  THE WIDE AREA EXTENDED FROM HYANNIS AND
MULLEN IN GRANT AND HOOKER COUNTIES...WHICH ARE ABOUT 70 MILES NORTHWEST
OF NORTH PLATTE NE.  THE AREA OF THUNDERSTORMS CONTINUED SOUTHWARD THRU
NORTH PLATTE AND CONTINUED SOUTH TO KANSAS-NEBRASKA STATE LINE WHERE THE
HEAVIER THUNDERSTORMS THAT HAD PRODUCED PEA SIZE HAIL DURING THE PAST HOUR
..WERE LOCATED.

THIS AREA OF THUNDERSTORMS HAS BEEN MOVING NORTHEAST AT ABOUT 30 MILES AN
HOUR AND MAY PRODUCE BRIEF HEAVY RAINS...GUSTY WINDS AND SMALL HAIL.

RN

The office that day

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

IssuedProductOfficeCountiesLasted
May 7, 7:20 PM CDTSevere Thunderstorm WarningLBFBoone40 min
May 7, 7:26 PM CDTSevere Thunderstorm WarningLBFAntelope, Pierce49 min
May 7, 9:21 PM CDTSevere Thunderstorm WarningLBFColfax, Cuming39 min

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.