Alert archive / Nebraska / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 39, NWS Omaha, NE

July 1, 1994Douglas County, Washington County, Nebraska

NWS Omaha, NE issued this severe thunderstorm warning at Jul 1, 1994, 7:55 PM CDT for Douglas County, Washington County, Nebraska. It was in force for 50 min.

The area

The counties it named.

The facts

Issued
Jul 1, 1994, 7:55 PM CDT (00:55 UTC)
Expired
Jul 1, 1994, 8:45 PM CDT
In force
50 min
Issued by
NWS Omaha, NE
Area
Whole counties

Counties Douglas County, NE, Washington County, NE

The nearest sounding before it

Omaha, NE (KOAX), launched 00:00Z, 0.9 hours before the alert went out and 18 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 1994-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2003 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 1994-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 143 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
2003 J/kg
Mixed-layer CIN
-93 J/kg
Mixed-layer LCL
976 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
143 m²/s²
0-3 km storm-relative helicity
423 m²/s²
Significant tornado parameter
3.3
Supercell composite
17.4

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 severe thunderstorm 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 1, 6:18 PM CDT, 1 hour 37 minutes before
NEZ034-044-045-051>053-067-068-091-093-IAZ055-056-069-079-080-
090-091-020020-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
618 PM CDT FRI JUL 1 1994

...VERY STRONG THUNDERSTORM SOUTHWEST OF OMAHA...
...SEVERE THUNDERSTORM WATCH CONTINUES FOR MUCH OF EASTERN NEBRASKA
AND SOUTHWEST IOWA..

AT 616 PM CDT RADAR INDICATED A VERY STRONG THUNDERSTORM ABOUT 55 MILES
SOUTHWEST OF OMAHA...OR NEAR SPRAGUE.  MOVEMENT WAS SOUTHEAST AT 30 MPH.
THIS STORM MAY MOVE ACROSS SOUTHWEST CASS COUNTY THROUGH 700 PM CDT.

THE SEVERE THUNDERSTORM WARNING FOR EASTERN HARRISON...EASTERN
POTTAWATTAMIE AND SHELBY COUNTIES EXPIRED AT 615 PM CDT.

A LARGE AREA OF VERY STRONG TO SEVERE THUNDERSTORMS EXTENDED FROM
NORTHEAST NEBRASKA TO SOUTH CENTRAL NEBRASKA AND WAS MOVING TO THE
EAST SOUTHEAST.  PERSONS IN EASTERN NEBRASKA AND SOUTHWEST IOWA SHOULD
REMAIN ALERT FOR POSSIBLE WEATHER THROUGH THE EVENING HOURS.  IF A
WARNING IS ISSUED FOR YOUR AREA...MOVE TO A SAFE SHELTER IMMEDIATELY.

MILLER
Special weather statement, Jul 1, 6:19 PM CDT, 1 hour 36 minutes before
NEZ034-044-045-051>053-067-068-091-093-IAZ055-056-069-079-080-
090-091-020020-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
618 PM CDT FRI JUL 1 1994

...VERY STRONG THUNDERSTORM SOUTHWEST OF OMAHA...
...SEVERE THUNDERSTORM WATCH CONTINUES FOR MUCH OF EASTERN NEBRASKA
AND SOUTHWEST IOWA..

AT 616 PM CDT RADAR INDICATED A VERY STRONG THUNDERSTORM ABOUT 55 MILES
SOUTHWEST OF OMAHA...OR NEAR SPRAGUE.  MOVEMENT WAS SOUTHEAST AT 30 MPH.
THIS STORM MAY MOVE ACROSS SOUTHWEST CASS COUNTY THROUGH 700 PM CDT.

THE SEVERE THUNDERSTORM WARNING FOR EASTERN HARRISON...EASTERN
POTTAWATTAMIE AND SHELBY COUNTIES EXPIRED AT 615 PM CDT.

A LARGE AREA OF VERY STRONG TO SEVERE THUNDERSTORMS EXTENDED FROM
NORTHEAST NEBRASKA TO SOUTH CENTRAL NEBRASKA AND WAS MOVING TO THE
EAST SOUTHEAST.  PERSONS IN EASTERN NEBRASKA AND SOUTHWEST IOWA SHOULD
REMAIN ALERT FOR POSSIBLE WEATHER THROUGH THE EVENING HOURS.  IF A
WARNING IS ISSUED FOR YOLUR AREA...MOVE TO A SAFE SHELTER IMMEDIATELY.

MILLER
Special weather statement, Jul 1, 6:20 PM CDT, 1 hour 35 minutes before
NEZ034-044-045-051>053-067-068-091-093-IAZ055-056-069-079-080-
090-091-020020-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
618 PM CDT FRI JUL 1 1994

...VERY STRONG THUNDERSTORM SOUTHWEST OF OMAHA...
...SEVERE THUNDERSTORM WATCH CONTINUES FOR MUCH OF EASTERN NEBRASKA
AND SOUTHWEST IOWA..

AT 616 PM CDT RADAR INDICATED A VERY STRONG THUNDERSTORM ABOUT 55 MILES
SOUTHWEST OF OMAHA...OR NEAR SPRAGUE.  MOVEMENT WAS SOUTHEAST AT 30 MPH.
THIS STORM MAY MOVE ACROSS SOUTHWEST OTOE COUNTY THROUGH 700 PM CDT.

THE SEVERE THUNDERSTORM WARNING FOR EASTERN HARRISON...EASTERN
POTTAWATTAMIE AND SHELBY COUNTIES EXPIRED AT 615 PM CDT.

A LARGE AREA OF VERY STRONG TO SEVERE THUNDERSTORMS EXTENDED FROM
NORTHEAST NEBRASKA TO SOUTH CENTRAL NEBRASKA AND WAS MOVING TO THE
EAST SOUTHEAST.  PERSONS IN EASTERN NEBRASKA AND SOUTHWEST IOWA SHOULD
REMAIN ALERT FOR POSSIBLE WEATHER THROUGH THE EVENING HOURS.  IF A
WARNING IS ISSUED FORR YOUR AREA...MOVE TO A SAFE SHELTER IMMEDIATELY.

MILLER
Special weather statement, Jul 1, 6:55 PM CDT, 1 hour before
NEZ034-044-045-051>053-067-068-091-093-IAZ055-056-069-079-080-
090-091-020130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
655 PM CDT FRI JUL 1 1994

...MORE THUNDERSTORMS MOVING ACROSS BURT COUNTY...
...SEVERE THUNDERSTORM WATCH CONTINUES FOR MUCH OF EASTERN NEBRASKA
AND SOUTHWEST IOWA..

AT 655 PM CDT... RADAR SHOWED THUNDERSTORMS REDEVELOPING OVER BURT COUNTY.
THESE STORMS WILL MOVE ACROSS BURT COUNTY INTO WEST CENTRAL IOWA...BY
730 PM CDT.  IN ADDITION TO BRIEF HEAVY RAINS AND GUSTY WINDS TO 40 MPH
...SMALL HAIL IS POSSIBLE.

ANOTHER LARGE AREA OF THUNDERSTORMS CURRENTLY IN THE NORFOLK AREA...WILL
MOVE EAST ACROSS THIS SAME AREA LATER THIS EVENING.

BE PREPARED TO SEEK SHELTER IMMEDIATELY IF THREATENING WEATHER IS
OBSERVED...AND LISTEN TO NOAA WEATHER RADIO FOR FUTURE STATEMENTS
AND POSSIBLE WARNINGS.

ZAPOTOCNY
Local storm report, Jul 1, 7:45 PM CDT, 10 minutes before
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Local storm report, Jul 1, 7:48 PM CDT, 7 minutes before
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 1, 7:00 PM CDTSevere Thunderstorm WarningOAXGage, Lancaster45 min
Jul 1, 7:21 PM CDTSevere Thunderstorm WarningOAXDodge, Saunders69 min
Jul 1, 7:23 PM CDTSevere Thunderstorm WarningOAXGage67 min
Jul 1, 7:35 PM CDTTornado WarningOAXGage25 min
Jul 1, 7:48 PM CDTSevere Thunderstorm WarningOAXJohnson, Lancaster57 min
Jul 1, 7:48 PM CDTSevere Thunderstorm WarningOAXSaline, Seward57 min
Jul 1, 8:00 PM CDTSevere Thunderstorm WarningOAXPawnee45 min
Jul 1, 9:13 PM CDTSevere Thunderstorm WarningOAXMills, Montgomery47 min
Jul 1, 9:25 PM CDTSevere Thunderstorm WarningOAXPage50 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1994Every severe thunderstorm warning in 1994

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.