Alert archive / Nebraska / Flash Flood Warnings in 1993

Flash Flood Warning 14, NWS North Platte, NE

August 29, 1993Cedar County, Nebraska

NWS North Platte, NE issued this flash flood warning at Aug 29, 1993, 10:00 PM CDT for Cedar County, Nebraska. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Aug 29, 1993, 10:00 PM CDT (03:00 UTC)
Expired
Aug 30, 1993, 2:00 AM CDT
In force
4 hr
Issued by
NWS North Platte, NE
Area
Whole counties

County Cedar County, NE

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 3.0 hours before the alert went out and 160 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 1993-08-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4054 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 1993-08-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 172 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
4054 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
760 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
172 m²/s²
0-3 km storm-relative helicity
263 m²/s²
Significant tornado parameter
4.0
Supercell composite
22.5

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KOFK 300301
FFWOFK
NEC011-027-119-139-179-300700-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NORFOLK NE
1000 PM CDT SUN AUG 29 1993
 
THE NATIONAL WEATHER SERVICE IN NORFOLK HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  200 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHEAST NEBRASKA
 
   ...BOONE COUNTY...CEDAR COUNTY...MADISON COUNTY...PIERCE COUNTY
   ...WAYNE COUNTY
 
RAINFALLS OF 3 TO OVER 6 INCHES HAVE FALLEN IN AN AREA FROM BOONE
COUNTY...ACROSS MADISON...PIERCE...WESTERN WAYNE AND CEDAR COUNTIES THIS
EVENING. HIGHWAY 14 IS CLOSED ACROSS BOONE COUNTY...MANY COUNTY ROADS
ARE UNDER WATER. WATER IS ACROSS HIGHWAY 121 IN MADISON COUNTY AND
HIGHWAY 20 IN CEDAR COUNTY NEAR BELDEN.
 
TORRENTIAL RAIN CONTINUES TO FALL ACROSS THIS AREA AND WILL FOR THE NEXT
SEVERAL HOURS.  THIS IS A VERY DANGEROUS FLOOD SITUATION AND ANYONE IN A
FLOOD PRONE AREA IN THESE COUNTIES SHOULD TAKE IMMEDIATE ACTION TO
PROTECT LIFE.
 
 
TO ESCAPE RISING WATER MOVE TO HIGHER GROUND..A FLASH FLOOD WARNING
MEANS THAT FLOODING IS OCCURRING OR IS IMMINENT.  MOST FLASH FLOOD
DEATHS OCCUR IN AUTOMOBILES.  DO NOT ATTEMPT TO CROSS BRIDGES...
DIPS...OR LOW SPOTS IF WATERj COVERS THE ROADWAY.  NEVER TRY TO
CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT.
 
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, Aug 29, 7:15 PM CDT, 2 hours 45 minutes before
NEZ016-017-300100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
715 PM CDT SUN AUG 29 1993

...STRONG THUNDERSTORMS WILL BE MOVING INTO SOUTHERN RED WILLOW
   COUNTY BY 725 PM CDT...

AT 710 PM CDT RADAR REVEALED AN AREA OF SCATTERED THUNDERSTORMS
ACROSS NORTH CENTRAL KANSAS WHICH WERE POISED TO ENTER SOUTHERN
RED WILLOW COUNTY.  THESE THUNDERSTORMS WERE LOCATED APPROXIMATELY
65 TO 75 MILES SOUTH OF NORTH PLATTE...OR NEAR THE KANSAS BORDER.

OTHER THUNDERSTORMS WERE OVER SOUTHERN AND EASTERN SECTIONS OF
FRONTIER COUNTY...OR FROM 40 MILES SOUTHEAST TO 45 MILES SOUTH
OF NORTH PLATTE.

PERSONS NEAR THE TOWN OF DANBURY...WHICH IS LOCATED ABOUT 66 MILES
SOUTH SOUTHEAST OF NORTH PLATTE...SHOULD PREPARE FOR THREATENING
WEATHER NOW.
>
MOVEMENT OF THE THUNDERSTORMS WAS TO THE NORTH NORTHEAST AROUND
30 MILES AN HOUR.  THE THUNDERSTORMS COULD PRODUCE LARGE HAIL...
DAMAGING WINDS...DEADLY BOLTS OF LIGHTNING AND HEAVY R&AINS.

SC
Special weather statement, Aug 29, 7:52 PM CDT, 2 hours 8 minutes before
NEZ007-017-300145-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
747 PM CDT SUN AUG 29 1993

...SCATTERED THUNDERSTORMS CONTINUED OVER PARTS OF SOUTHWEST AND
   WEST CENTRAL NEBRASKA...

AT 745 PM CDT RADAR SHOWED AN AREA OF SCATTERED THUNDERSTORMS OVER
PARTS OF SOUTHWEST AND WEST CENTRAL NEBRASKA.  MOST OF THE THUNDERSTORMS
HAD MOVED INTO CENTRAL NEBRASKA...BUT ONE THUNDERSTORM WITH BRIEF HEAVY
RAIN...GUSTY WINDS AND POSSIBLY SMALL HAIL WAS LOCATED JUST NORTH OF
DANBURY...OR ABOUT 60 MILES SOUTH SOUTHEAST OF NORTH PLATTE.  ANOTHER
STRONG THUNDERSTORM WAS ACROSS THE EXTREME SOUTHEAST CORNER OF CUSTER
COUNTY...ABOUT 60 MILES TO THE EAST OF NORTH PLATTE OR 10 MILES SOUTH
OF MASON CITY.

MOVEMENT WAS TO THE NORTHEAST AROUND 25 MILES AN HOUR...AND PERSONS
IN THE PATH OF THESE STORMS SHOULD PREPARE FOR HEAVY RAIN...DANGEROUS
LIGHTNING...SMALL HAIL AND GUSTY WINDS.  A DEPUTY NEAR DANBURY WAS
REPORTING NEAR ZERO VISIBILITY IN EXTREMELY HEAVY RAIN AROUND
745 PM CDT.

SC
Special weather statement, Aug 29, 8:36 PM CDT, 1 hour 24 minutes before
NEZ007-017-300235-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
833 PM CDT SUN AUG 29 1993

...SCATTERED SHOWERS AND THUNDERSTORMS CONTINUED OVER PARTS OF
   WEST CENTRAL AND SOUTHWEST NEBRASKA...

AT 830 PM CDT AN AREA OF SCATTERED SHOWERS AND THUNDERSTORMS
CONTINUED OVER PARTS OF SOUTHWEST AND WEST CENTRAL NEBRASKA.
THIS AREA WAS GENERALLY EAST OF A LINE FROM 45 MILES EAST OF
NORTH PLATTE...NEAR CALLAWAY...TO 70 MILES SOUTH SOUTHEAST OF
NORTH PLATTE.

A THUNDERSTORM CONTAINING BRIEF HEAVY RAIN AND GUSTY WINDS WAS
LOCATED 10 MILES SOUTHEAST OF INDIANOLA IN RED WILLOW COUNTY...OR
ABOUT 60 MILES SOUTH SOUTHEAST OF NORTH PLATTE.  ANOTHER THUNDERSTORM
WITH THESE SAME C
HARACTERISTICS WAS LOCATED ABOUT 12 MILES EAST OF
CALLAWAY...OR ABOUT 45 MILES EAST NORTHEAST OF NORTH PLATTE.

MOVEMENT OF THE SHOWERS AND THUNDERSTORMS WAS TO THE NORTH NORTHEAST
AROUND 25 MILES AN HOUR.

SC
Special weather statement, Aug 29, 9:23 PM CDT, 37 minutes before
NEZ006-016-017-300325-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
922 PM CDT SUN AUG 29 1993

...SCATTERED SHOWERS AND THUNDERSTORMS CONTINUED OVER PARTS OF
   SOUTHWEST NEBRASKA...AND WERE MOVING INTO PARTS OF NORTH
   CENTRAL NEBRASKA...

AT 915 PM CDT (815 PM MDT) RADAR REVEALED A SMALL BAND OF
THUNDERSTORMS MOVING INTO WESTERN GRANT COUNTY FROM THE
PANHANDLE OF NEBRASKA.  THESE THUNDERSTORMS WERE IN A 15
MILE WIDE AREA...EXTENDING ABOUT 75 MILES TO THE NORTHWEST
OF NORTH PLATTE...OR JUST WEST OF THE COMMUNITY OF ASHBY...
IN NORTHWEST GRANT COUNTY.

THESE THUNDERSTORMS WERE MOVING TO THE EAST SOUTHEAST AT 25 MILES
AN HOUR...AND HAVE THE POTENTIAL OF BRIEF HEAVY RAIN AND GUSTY
WINDS.
>
ANOTHER AREA OF SCATTERED SHOWERS AND THUNDERSTORMS CONTINUED
OVER PARTS OF SOUTHWEST NEBRASKA.  THIS AREA WAS GENERALLY
LOCATED TO THE SOUTHEAST OF A LINE FROM 60 MILES SOUTHEAST
OF NORTH PLATTE...TO 80 MILES SOUTH OF NORTH PLATTE...ALONG
THE KANSAS BORDER.

A THUNDERSTORM WITH HEAVY RAIN AND GUSTY WINDS WAS LOCATED
10 MILES EAST NORTHEAST OF INDIANOLA...OR ABOUT 55 MILES
SOUTH SOUTHEAST OF NORTH PLATTE.

THESE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AROUND b25
MILES AN HOUR.

SC

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 29, 7:30 PM CDTSevere Thunderstorm WarningLBFCedar, Madison, Pierce45 min
Aug 29, 7:30 PM CDTSevere Thunderstorm WarningLBFBoone45 min
Aug 29, 8:06 PM CDTFlash Flood WarningLBFBoone3 hr
Aug 29, 10:00 PM CDTFlash Flood WarningLBFBoone, Madison, Pierce, Wayne4 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.