Alert archive / Nebraska / Flash Flood Warnings in 1992

Flash Flood Warning 7, NWS Omaha, NE

July 24, 1992Gage County, Jefferson County, Nebraska

NWS Omaha, NE issued this flash flood warning at Jul 24, 1992, 10:52 PM CDT for Gage County, Jefferson County, Nebraska. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Jul 24, 1992, 10:52 PM CDT (03:52 UTC)
Expired
Jul 25, 1992, 3:00 AM CDT
In force
4 hr
Issued by
NWS Omaha, NE
Area
Whole counties

Counties Gage County, NE, Jefferson County, NE

The nearest sounding before it

Omaha, NE (KOVN), launched 00:00Z, 3.9 hours before the alert went out and 131 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 1992-07-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 44 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 1992-07-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 154 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
44 J/kg
Mixed-layer CIN
-240 J/kg
Mixed-layer LCL
791 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
154 m²/s²
0-3 km storm-relative helicity
235 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 24, 6:15 PM CDT, 4 hours 37 minutes before
NEZ015-019-250015-

SPECIAL WEATHER STATEMENT FOR SOUTHEAST NEBRASKA
NATIONAL WEATHER SERVICE LINCOLN NE
615 PM CDT FRI JUL 24 1992

...FLASH FLOOD WARNING UNTIL 815 PM CDT FOR SOUTHERN LANCASTER AND
   JOHNSON COUNTY...
...SEVERE THUNDERSTORM WATCH UNTIL 11 PM CDT...

AT 610 PM CDT RADAR INDICATED A STRONG THUNDERSTORM ON THE SEWARD AND
LANCASTER COUNTY LINE.  THE TOWNS OF MILFORD AND PLEASANT DALE ARE IN
THE PATH OF THIS STORM.  THIS STORM IS PART OF A LINE OF THUNDERSTORMS
THAT EXTEND WEST TO THE HASTINGS AREA IN SOUTH CENTRAL NEBRASKA.

MODERATE TO HEAVY RAIN IS STILL FALLING IN SOUTHERN LANCASTER AND
JOHNSON COUNTIES ALTHOUGH THE STORMS HAVE WEAKENED SOME DURING THE LAST
HOUR.

ZELL
Special weather statement, Jul 24, 6:32 PM CDT, 4 hours 20 minutes before
NEZ010-015-020-IAZ056-080-090-091-250130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA NE
630 PM CDT FRI JUL 24 1992

...SEVERE THUNDERSTORM WATCH FOR SOUTHEAST NEBRASKA AND SOUTHWEST IOWA
    UNTIL 11 PM CDT...
...FLASH FLOOD WARNING FOR OTOE AND NEMAHA COUNTIES UNTIL 900 PM CDT...

AT 600 PM AN AREA OF THUNDERSTORMS...SOME WITH VERY HEAVY RAIN...WAS
LOCATED OVER SOUTHERN CASS...OTOE...AND NEMAHA COUNTIES.  ANOTHER AREA
OF THUNDERSTORMS WAS LOCATED OVER PAGE COUNTY IN SOUTHWEST IOWA.  THE
THUNDERSTORMS WERE MOVING TO THE SOUTHEAST AT 25 MPH.

CLOUDY SKIES WILL REMAIN OVER THE REST OF THE AREA THIS EVENING.  THERE
IS A CHANCE OF MORE THUNDERSTORMS MOVING INTO THE OMAHA AREA AFTER
9PM CDT.  SOME OF THESE STORMS MAY CONTAIN HEAVY RAIN.  TEMPERATURES
WILL REMAIN ALMOST STEADY FROM EARLY EVENING READINGS AROUND 70 AS A
WARM FRONT WILL PASS THROUGH THE AREA DURING THE NIGHT.

ANDERSON
Special weather statement, Jul 24, 7:44 PM CDT, 3 hours 8 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA NE
745 PM CDT FRI JUL 24 1992

TORNADO WATCH 678 IS NO LONGER IN EFFECT FOR THE FOLLOWING COUNTIES
IN NEBRASKA...

...ZONE 1...
BOX BUTTE       DDAWES           SHERIDAN        SIOUX

ANDERSON
Special weather statement, Jul 24, 8:10 PM CDT, 2 hours 42 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA NE
810 PM CDT FRI JUL 24 1992

SEVERE THUNDERSTORM WATCH NUMBER 677 IS NO LONGER IN EFFECT FOR THE
FOLLOWING COUNTIES IN NEBRASKA.

...ZONE 13...
DAWSON

...ZONE 17...
FRONTIER       RED WILLOW      GOSPER       FURNAS

FOBERT
Special weather statement, Jul 24, 8:25 PM CDT, 2 hours 27 minutes before
NEZ010-020-250230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA NE
824 PM CDT FRI JUL 24 1992

...FLASH FLOOD WARNING FOR NEMAHA AND OTOE COUNTIES UNTIL MIDNIGHT...
...SEVERE THUNDERSTORM WATCH FOR PARTS OF SOUTHEAST NEBRASKA UNTIL
   11 PM CDT...

AT 815 PM CDT SHOWERS AND THUNDERSTORMS CONTINUED ACROSS SOUTHEAST
NEBRASKA AND SOUTHWEST IOWA.  THESE STORMS EXTENDED FROM THE HASTINGS
AREA TO SOUTH OF LINCOLN WITH MORE SCATTERED STORMS NEAR THE OMAHA
METROPOLITAN AREA.  THE STRONGEST STORMS WERE LOCATED NEAR FAIRMONT...
OR 85 MILES SOUTHWEST OF OMAHA.  THESE STORMS WERE MOVING TO THE
NORTHEAST AT 20 MPH.

SEVERAL REPORTS OF FLOODING WERE NOTED NEAR CRETE...OR 55 MILE MILES
tSOUTHWEST OF OMAHA.

PERSONS DRIVING IN THESE AREAS SHOULD USE CAUTION AND DO NOT ATTEMPT TO
DRIVE OVER A ROAD COVERED BY WATER.

ZAPOTOCNY
Special weather statement, Jul 24, 9:02 PM CDT, 1 hour 50 minutes before
NEZ015-019-250300-

SPECIAL WEATHER STATEMENT FOR SOUTHEAST NEBRASKA
NATIONAL WEATHER SERVICE LINCOLN NE
900 PM CDT FRI JUL 24 1992

...FLASH FLOOD WARNING UNTIL 1215 AM CDT FOR SOUTHERN LANCASTER AND
   JOHNSON COUNTY...AND SALINE COUNTY...
...SEVERE THUNDERSTORM WATCH UNTIL 11 PM CDT...

AT 850 PM THUNDERSTORMS WERE IN SALINE COUNTY 5 MILES SOUTH OF
DORCHESTER.  TWO THUNDERSTORMS WERE ALSO IN CENTRAL FILLMORE AND
NORTHERN THAYER COUNTY FROM FAIRMONT SOUTH TO CARLETON.  THESE
STORMS WERE MOVING EAST AT 20 MPH.  THEY CONTAINED HEAVY RAIN
AND WILL CONTRIBUTE TO FLOODING ALREADY OCURRING IN SALINE
COUNTY...PARTICULARLY NEAR THE TOWNS OF CRETE DORCHESTER AND
WILBER.

LISTEN FOR LATER STEMENTS AND POSSIBLE WARNINGS THIS EVENING.
BYRNE

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 24, 7:55 PM CDTFlash Flood WarningOAXNemaha, Otoe4 hr
Jul 24, 8:06 PM CDTFlash Flood WarningOAXJohnson, Lancaster4 hr
Jul 24, 8:06 PM CDTFlash Flood WarningOAXSaline4 hr
Jul 24, 8:14 PM CDTSevere Thunderstorm WarningOAXSaline, Seward59 min
Jul 24, 9:08 PM CDTFlash Flood WarningOAXSaline3 hr
Jul 25, 12:11 AM CDTFlash Flood WarningOAXJohnson, Lancaster3 hr
Jul 25, 12:11 AM CDTFlash Flood WarningOAXSaline3 hr
Jul 25, 1:34 AM CDTFlash Flood WarningOAXPawnee3 hr
Jul 25, 4:28 PM CDTFlash Flood WarningOAXDodge3 hr
Jul 25, 5:33 PM CDTFlash Flood WarningOAXRichardson4 hr

Nearby

Flash Flood Warnings in Nebraska, 1992Every flash flood warning in 1992

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.