Alert archive / Nebraska / Flash Flood Warnings in 1992

Flash Flood Warning 16, NWS Omaha, NE

July 30, 1992Otoe County, Nebraska

NWS Omaha, NE issued this flash flood warning at Jul 30, 1992, 2:58 AM CDT for Otoe County, Nebraska. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Jul 30, 1992, 2:58 AM CDT (07:58 UTC)
Expired
Jul 30, 1992, 6:00 AM CDT
In force
3 hr
Issued by
NWS Omaha, NE
Area
Whole counties

County Otoe County, NE

The nearest sounding before it

Omaha, NE (KOVN), launched 00:00Z, 8.0 hours before the alert went out and 77 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 1992-07-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2191 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 1992-07-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 46 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
2191 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
729 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
46 m²/s²
0-3 km storm-relative helicity
204 m²/s²
Significant tornado parameter
1.8
Supercell composite
9.8

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 29, 9:55 PM CDT, 5 hours 3 minutes before
IAZ090-091-300400-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA NE
955 PM CDT WED JUL 29 1992

AN INTENSE THUNDERSTORM CONTINUES ACROSS EXTREME EASTERN FREMONT COUNTY
AND WESTERN PAGE COUNTY IN SOUTHWEST IOWA...50 MILES SOUTHEAST OF OMAHA.

HEAVY RAIN AND PEA SIZE HAIL HAVE BEEN REPORTED WITH THIS STORM AROUND
SHENANDOAH...BUT NO SEVERE WEATHER HAS BEEN REPORTED AS OF 945PM.

THE THUNDERSTORM WAS MOVING SOUTHEAST AT 30 MILES AN HOUR AND WILL BE
OUT OF FREMONT COUNTY BY 10 PM CDT.

A SEVERE THUNDERSTORM WARNING CONTINUES FOR EASTERN FREMONT COUNTY
UNTIL 10 PM CDT.

FOBERT
Special weather statement, Jul 29, 10:02 PM CDT, 4 hours 56 minutes before
NEZ003-004-007-008-009-300330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORFOLK NE
1002 PM CDT WED JUL 29 1992

...TORNADO WATCH FOR NORTH CENTRAL NEBRASKA UNTIL MIDNIGHT CDT...

AT 958 PM CDT RADAR INDICATED A LARGE AREA OF SHOWERS AND THUNDERSTORMS
COVERING MUCH OF NORTH CENTRAL AND EXTENDING INTO NORTHEAST NEBRASKA.
THE LEADING EDGE STRETCHED FROM 35 MILES NORTHWEST OF SIOUX CITY SOUTH
TO ABOUT 15 MILES WEST OF NORFOLK AND COLUMBUS.  MOST OF THE STORMS
CONTAINED LIGHT RAIN BUT SOME HEAVIER RAINS WERE EMBEDDED WITHIN THIS
LARGER AREA.

ALL OF THE SHOWERS AND THUNDERSTORMS WERE MOVING SOUTHEAST AT 25 MILES
AN HOUR.

THE SHOWERS AND STORMS WILL CONTINUE TO MOVE OVER THE NORTH C>ENTRAL AND
NORTHEAST PARTS OF THE STATE THROUGH THE LATE EVENING AND EARLY MORNING
HOURS.                                                       TDK
Special weather statement, Jul 29, 11:36 PM CDT, 3 hours 22 minutes before
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Special weather statement, Jul 29, 11:36 PM CDT, 3 hours 22 minutes before
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Special weather statement, Jul 30, 12:20 AM CDT, 2 hours 38 minutes before
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      <div class="status" id="status">Temporary Notice</div>
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Special weather statement, Jul 30, 12:27 AM CDT, 2 hours 31 minutes before
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<body>
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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 29, 10:20 PM CDTFlash Flood WarningOAXRichardson5 hr
Jul 29, 11:01 PM CDTSevere Thunderstorm WarningOAXNemaha29 min
Jul 30, 12:42 AM CDTFlash Flood WarningOAXJohnson, Pawnee4 hr
Jul 30, 12:49 AM CDTFlash Flood WarningOAXNemaha4 hr
Jul 30, 2:58 AM CDTFlash Flood WarningOAXRichardson3 hr
Jul 30, 5:00 AM CDTFlash Flood WarningOAXNemaha, Otoe, Richardson19 hr
Jul 29, 10:53 PM CDTSevere Thunderstorm WarningOAXMontgomery37 min

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.