Alert archive / Nebraska / Tornado Warnings in 1991

Tornado Warning 13, NWS Omaha, NE

May 29, 1991Dodge County, Nebraska

NWS Omaha, NE issued this tornado warning at May 29, 1991, 11:08 PM CDT for Dodge County, Nebraska. It was in force for 37 min.

The area

The counties it named.

The facts

Issued
May 29, 1991, 11:08 PM CDT (04:08 UTC)
Expired
May 29, 1991, 11:45 PM CDT
In force
37 min
Issued by
NWS Omaha, NE
Area
Whole counties

County Dodge County, NE

The nearest sounding before it

Omaha, NE (KOVN), launched 00:00Z, 4.1 hours before the alert went out and 37 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 1991-05-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 549 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 1991-05-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 43 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
549 J/kg
Mixed-layer CIN
-117 J/kg
Mixed-layer LCL
1066 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
43 m²/s²
0-3 km storm-relative helicity
142 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KOMA 300410
TOROMA
NEC053-300445-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE OMAHA NE
1108 PM CDT WED MAY 29 1991
 
THE NATIONAL WEATHER SERVICE IN OMAHA HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL 1145 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN EAST CENTRAL NEBRASKA
 
   ...NORTHWESTERN DODGE COUNTY
 
AT 1109 PM CDT RADAR INDICATED A POSSIBLE TORNADO NEAR HOWELLS NEBRASKA
OR ABOUT 55 MILES NORTHWEST OF OMAHA. THE STORM WITH THIS POSSIBLE
TORNADO WAS MOVING NORTHEAST AT 25 MPH. THE TOWN OF DODGE IS IN THE PATH
OF THIS STORM.
 
 
PERSONS IN THE WARNED AREA SHOULD TAKE SHELTER IN A BASEMENT IF
AVAILABLE.  OTHERWISE GO TO A SMALL INTERIOR ROOM ON THE LOWEST
FLOOR.  CARS AND MOBILE HOMES SHOULD BE ABANDONED.
 
IF YOU ARE CAUGHT IN THE OPEN...TRY TO HIDE IN A DEPRESSION SUCH AS
A DITCH OR CULVERT.
 
WIESE

What forecasters said that day

The local office's own words before this tornado 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 29, 7:02 PM CDT, 4 hours 6 minutes before
NEZ010-015-019-020-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA NE
658 PM CDT WED MAY 29 1991

IN NEBRASKA SEVERE THUNDERSTORM WATCH NUMBER 425 IS NO LONGER IN
EFFECT FOR THE FOLLOWING COUNTIES...

...ZONE 10...
CASS            DOUGLAS         SARPY

...ZONE 15...
LANCASTER

THE WATCH CONTINUES IN EFFECT UNTIL 900 PM CDT FOR THE FOLLOWING
COUNTIES OF SOUTHEAST NEBRASKA.

...ZONE 19...
GAGE            JEFFERSON

...ZONE 20...}
JOHNSON         NEMAHA          OTOE            PAWNEE
RICHARDSON

SOME CITIES STILL INCLUDED IN THE WATCH ARE...

BEATRICE        FAIRBURY        FALLS CITY
NEBRASKA CITY

WIESE
Special weather statement, May 29, 7:47 PM CDT, 3 hours 21 minutes before
IAZ012-300130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA NE
745 PM CDT WED MAY 29 1991

...THUNDERSTORMS INCREASING IN SOUTHWEST IOWA...

AT 745 PM CDT RADAR INDICATED THUNDERSTORMS INCREASING IN INTENSITY
IN SOUTHWEST IOWA IN A BAND ABOUT 15 MILES WIDE FROM NEAR RED OAK
IOWA TO 20 MILES SOUTH OF CLARINDA.  THIS IS ABOUT 55 MILES SOUTHEAST
OF OMAHA.

THE THUNDERSTORMS WERE MOVING NORTHEAST AT 20 MPH AND WILL BE MOVING
THROUGH THE VILLISCA AND CLARINDA AREAS THROUGH 845 PM CDT.  PERSONS
NEAR THE STORMS SHOULD BE ALERT FOR AREAS OF HEAVY RAIN AND POSSIBLE
SMALL HAIL.

WIESE
Special weather statement, May 29, 9:06 PM CDT, 2 hours 2 minutes before
IAZ012-300330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA NE
905 PM CDT WED MAY 29 1991

...SEVERE THUNDERSTORMS WARNING FOR SOUTHERN PAWNEE COUNTY TIL 10 PM...
...RAPIDLY DEVELOPING THUNDERSTORMS OVER SOUTHEAST NEBRASKA...

SHORTLY BEFORE 9PM...OMAHA RADAR SHOWED VERY STRONG THUNDERSTORMS
DEVELOPING OVER THE SOUTHEAST CORNER OF NEBRASKA.  THE STORMS WERE
IN A 20 MILE WIDE BAND EXTENDING FROM 20 MILES SOUTHWEST OF AUBURN
TO 30 MILES SOUTHWEST OF PAWNEE CITY NEBRASKA OR 65 MILES SOUTH TO
85 MILES SOUTHSOUTHWEST OF OMAHA.  THE BAND OF THUNDERSTORMS TRAILED
INTO NORTHCENTRAL KANSAS.  ALL OF THE STORMS WERE MOVING NORTHEAST
AT 25 MPH.

PEOPLE IN AUBURN...HUMBOLDT...AND PAWNEE CI.TY SHOULD BE ON THE ALERT
FOR HEAVY DOWNPOURS...POSSIBLE HAIL...AND GUSTY WINDS THROUGH 10 PM CDT.
STAY TUNED FOR LATER STATEMENTS AND POSSIBLE WARNINGS.
KLEMM
Special weather statement, May 29, 9:38 PM CDT, 1 hour 30 minutes before
IAZ012-300330-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA NE
937 PM CDT WED MAY 29 1991

...STRONG THUNDERSTORMS CONTINUE OVER SOUTHEAST NEBRASKA...

AT 930 PM CDT...OMAHA RADAR SHOWED VERY STRONG THUNDERSTORMS OCCURRING
IN A 25 MILE WIDE BAND FROM 10 MILES NORTHWEST OF TARKIO MISSOURI
TO 15 MILES SOUTHEAST OF BEATRICE NEBRASKA...55 MILES SOUTHSOUTHEAST
TO 85 MILES SOUTHSOUTHWEST OF OMAHA.  THE THUNDERSTORMS WERE PRODUCING
VERY HEAVY RAINFALL AND POSSIBLE SMALL HAIL...AND MOVING NORTHEAST
AT 25 MPH.

PEOPLE IN THE TOWNS OF TECUMSEH...AUBURN...AND PERU SHOULD REMAIN ALERT
FOR THE LIKELIHOOD OF VERY HEAVY RAINFALL WHICH WILL QUICKLY FLOOD LOW
LYING AREAS AND SMALL STREAMS.  AVXOID ROADWAYS WITH WATER RUNNING OVER
THEM.  LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS.

KLEMM
Special weather statement, May 29, 10:14 PM CDT, 54 minutes before
IAZ012-NEZ020-300430-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA NE
1014 PM CDT WED MAY 29 1991

...STRONG THUNDERSTORMS OVER SOUTHEAST NEBRASKA AND SOUTHWEST IOWA...

SHORTLY AFTER 10PM CDT...OMAHA RADAR SHOWED A 30 MILE WIDE BAND
OF THUNDERSTORMS EXTENDING FROM 10 MILES EAST OF CLARINDA IOWA
THROUGH AUBURN TO 20 MILES SOUTHEAST OF BEATRICE.  POSSIBLE HAIL
AND STRONG GUSTY WINDS WERE OCCURING WITH THE STRONGEST STORMS IN
THE AUBURN AND PERU VICINITIES IN NEMAHA COUNTY NEBRASKA.  THE STORMS
WERE MOVING NORTHEAST AT 25 MPH.

PEOPLE IN JOHNSON AND NEMAHA COUNTIES IN NEBRASKA AND FREMONT AND PAGE
COUNTIES IN IOWA SHOULD REMAIN ALERT FOR VERY HEAVY RAIN AND POSSIBLE
SEVERE WEATHER UNTIL 11PM CDT.  HEAVY RAIN MAY QUICKLY FLOOD LOW LYING
AREAS AND CAUSE RAPID RISES ON SMALL STREAMS.  AVOID ROADS WITH WATER
FLOWING OVER THEM...AND STAY TUNED FOR FURTHER STATEMENTS AND POSSIBLE
WARNINGS.

KLEMM
Special weather statement, May 29, 10:49 PM CDT, 19 minutes before
IAZ012-NEZ010-020-300500-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA NE
1047 PM CDT WED MAY 29 1991

...STRONG THUNDERSTORMS DEVELOPING EASTCENTRAL NEBRASKA...

AT 1040 PM CDT...OMAHA RADAR SHOWED A NEW CLUSTER OF THUNDERSTORMS
DEVELOPING OVER NORTHERN LANCASTER COUNTY 15 MILES NORTH OF LINCOLN.
OR 45 MILES SOUTHWEST OF OMAHA.  THESE THUNDERSTORMS WILL BE MOVING
INTO SOUTHEAST SUANDERS COUNTY.  PEOPLE IN THE TOWNS OF WAHOO AND
ASHLAND SHOULD PREPARE FOR HEAVY RAIN...SMALL HAIL...AND GUSTY WINDS
UNTIL 1130 PM.

ANOTHER THUNDERSTORMS COMPLEX WAS OVER CENTRAL COLFAX COUNTY.  RADAR
HAS INDICATED A POSSIBLE TORNADO WITH THIS STORM.  ON THE PRESENT
COURSE...THESE STORMS MAY AFFECT NORTHWEST DODGE COUNTY SHORTLY AFTER
11PM CDT.

IN ADDITION...THE STRONG THUNDERSTORMS OVER SOUTHEAST NEBRASKA AND
SOUTHWEST IOWA HAD WEAKENED AND ARE NO LONGER EXPECTED TO BE SEVERE.

KLEMM

The office that day

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

IssuedProductOfficeCountiesLasted
May 29, 8:57 PM CDTSevere Thunderstorm WarningOAXPawnee63 min
May 29, 10:32 PM CDTTornado WarningOAXButler28 min
May 29, 10:56 PM CDTSevere Thunderstorm WarningOAXDouglas, Sarpy64 min
May 29, 10:56 PM CDTSevere Thunderstorm WarningOAXSaunders64 min
May 29, 11:31 PM CDTTornado WarningOAXButler29 min
May 29, 11:46 PM CDTTornado WarningOAXDodge29 min

Nearby

Tornado Warnings in Nebraska, 1991Every tornado warning in 1991Tornadoes in 1991

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.