Alert archive / Nebraska / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 9, NWS Omaha, NE

March 13, 1990Cass County, Otoe County, Nebraska

NWS Omaha, NE issued this severe thunderstorm warning at Mar 13, 1990, 4:16 PM CST for Cass County, Otoe County, Nebraska. It was in force for 59 min.

The area

The counties it named.

The facts

Issued
Mar 13, 1990, 4:16 PM CST (22:16 UTC)
Expired
Mar 13, 1990, 5:15 PM CST
In force
59 min
Issued by
NWS Omaha, NE
Area
Whole counties

Counties Cass County, NE, Otoe County, NE

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Omaha, NE (KOAX), launched 12:00Z, 10.3 hours before the alert went out and 63 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 12:00Z on 1990-03-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 1990-03-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 361 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3580 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
361 m²/s²
0-3 km storm-relative helicity
336 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KOMA 132216
SVROMA
NEC025-131-153-132315-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE OMAHA NE
416 PM CST TUE MAR 13 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 515 PM CST FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE EAST CENTRAL PART OF NEBRASKA
      CASS...SARPY...

   IN THE SOUTHEAST PART OF NEBRASKA
      NORTHERN OTOE...

AT 413 PM CST RADAR SHOWED A SEVERE THUBDERSTORM 40 MILES
SOUTHWEST OF OMAHA NEBRASKA IN NORTHERN OTOE COUNTY NEBRASKA.  THE
TOWNS OF LOUISVILLE AND WEEPING WATER NEBRASKA ARE IN THE
PATH OF THIS SEVERE STORM.  THE STORM WAS MOVING NORTHEAST AT
40 MPH.

A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA...SO REMEMBER
THESE STORMS CAN AND OCCASIONALLY DO PRODUCE A TORNADO WITH LITTLE
OR NO ADVANCE WARNING.  LISTEN FOR LATER STATEMENTS OR WARNINGS.

THIS SEVERE THUNDERSTORM CAN PRODUCE HAIL GREATER THAN 3/4 INCH IN)
DIAMETER AND DESTRUCTIVE WINDS.  STAY INDOORS AND AWAY FROM AREAS
WITH LOOSE ITEMS THAT COULD BECOME DANGEROUS FLYING DEBRIS.

BYRD

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, Mar 13, 12:01 PM CST, 4 hours 15 minutes before
NEZ010-020-131900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA NE
1155 AM CST TUE MAR 13 1990

...A TORNADO WATCH CONTINUES ACROSS MUCH OF EASTERN NEBRASKA AND WESTERN
IOWA UNTIL 6 PM CST...

AT 1150 AM CST...THUNDERSTORMS WERE MOVING THROUGH PARTS OF EAST CENTRAL
NEBRASKA AND NORTHERN KANSAS.  THESE STORMS WILL LIKELY MOVE INTO
EASTERN NEBRASKA AND SOUTHWEST IOWA EARLY THIS AFTERNOON.

PEOPLE IN EASTERN NEBRASKA AND ADJACENT SOUTHWEST IOWA SHOULD CONTINUE
TO MONITOR THE WEATER CLOSELY THIS AFTERNOON.  TAKE TIME TO PROTECT
YOUR PROPERTY NOW AND REVIEW YOUR EMERGENCY TORNADO PLAN.

LISTEN TO NOAA WEATHER RADIO OR YOUR LOCAL BROADCAST MEDIA FOR LATER
STATEMENTS AND POSSIBLE WARNINGS.

JOHNSON
Special weather statement, Mar 13, 12:58 PM CST, 3 hours 18 minutes before
NEZ010-020-131900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA NE
1255 PM CST TUE MAR 13 1990

...A TORNADO WATCH CONTINUES ACROSS MUCH OF EASTERN NEBRASKA AND WESTERN
IOWA UNTIL 6 PM CST...

AT 1245 PM CST...THUNDERSTORMS WERE APPROACHING OTEO..NEMAHA AND
RICHARDSON COUNTIES OF SOUTHEAST NEBRASKA.  THE THUNDERSTORMS EXTENDED
FROM JUST SOUTH OF LINCOLN SOUTH TO THE KANSAS BORDER AND THEY WERE
MOVING NORTHEAST AT 40 MILES AN HOUR.

IF YOU LIVE IN OTOE...NEMAHA OR RICHARDSON COUNTIES YOU SHOULD PREPARE
FOR STRONG WINDS...DANGEROUS LIGHTNING AND POSSIBLY HAIL.  THE STORMS
SHOULD MOVE INTO THIS AREA BY 120 PM.

PEOPLE IN EASTERN NEBRASKA AND ADJACENT SOUTHWEST IOWA SHOULD CONTINUE
TO MONITOR THE WEATER CLOSELY THIS AFTERNOON.  TAKE TIME TO PROTECT YOU
PROPERTY NOW AND REVIEW YOU EMGERGANCY TORNADO PLAN.
^
JOHNSON
Special weather statement, Mar 13, 12:59 PM CST, 3 hours 17 minutes before
NEZ010-020-131900-

SPECIAL WEATHER STATEMENT  ...CORRECTION...
NATIONAL WEATHER SERVICE OMAHA NE
1255 PM CST TUE MAR 13 1990

...A TORNADO WATCH CONTINUES ACROSS MUCH OF EASTERN NEBRASKA AND WESTERN
IOWA UNTIL 6 PM CST...

AT 1245 PM CST...THUNDERSTORMS WERE APPROACHING OTEO..NEMAHA AND
RICHARDSON COUNTIES OF SOUTHEAST NEBRASKA.  THE THUNDERSTORMS EXTENDED
FROM JUST SOUTH OF LINCOLN SOUTH TO THE KANSAS BORDER AND THEY WERE
MOVING NORTHEAST AT 40 MILES AN HOUR.

IF YOU LIVE IN OTOE...NEMAHA OR RICHARDSON COUNTIES YOU SHOULD PREPARE
FOR STRONG WINDS...DANGEROUS LIGHTNING AND POSSIBLY HAIL.  THE STORMS
SHOULD MOVE INTO THIS AREA BY 120 PM.

PEOPLE IN EASTERN NEBRASKA AND ADJACENT SOUTHWEST IOWA SHOULD CONTINUE
TO MONITOR THE WEATER CLOSELY THIS AFTERNOON.  TAKE TIME TO PROTECT YOU
PROPERTY NOW AND REVIEW YOU EMERGENCY TORNADO PLAN.
^
JOHNSON
Special weather statement, Mar 13, 2:16 PM CST, 2 hours before
NEZ001-005-011-132100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA NE
110 PM MST TUE MAR 13 1990

...A WINTER STORM WARNING IS IN EFFECT FOR THE WESTERN HALF OF THE
   NEBRASKA THROUGH TONIGHT...
...A WINTER STORM WATCH REMAINS IN EFFECT FOR THE EASTERN HALF OF THE
PANHANDLE...TONIGHT...

AN INTENSE STORM SYSTEM IS PRODUCING SNOW IN THE PANHANDLE OF
NEBRASKA.  AS OF 1PM MST SNOW AMOUNTS INCLUDED 5 INCHES AT
MORRILL AND 3 INCHES AT MITCHELL.  SATELLITE IMAGES INDICATE MORE
SNOW IS LIKELY THIS AFTERNOON AND TONIGHT.   SOME SNOW ACCUMULATIONS
UP TO TEN INCHES ARE POSSIBLE ALONG THE WYOMING BORDER BEFORE THE SNOW
TAPERS OFF LATER TONIGHT.

IF YOU ARE PLANNING TO TRAVEL IN THE PANHANDLE THIS AFTERNOON OR
TONIGHT BE PREPARED FOR WINTER DRIVING CONDITIONS.

GAVERS/WATTERS
Special weather statement, Mar 13, 2:20 PM CST, 1 hour 56 minutes before
NEZ010-020-131900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA NE
215 PM CST TUE MAR 13 1990

...THUNDERSTORMS ARE MOVING ACROSS OMAHA/COUNCIL BLUFFS...

AT 205 PM CST NATIONAL WEATHER SERVICE RADAR SHOWED THUNDERSTORMS MOVING
ACROSS THE OMAHA/COUNCIL BLUFFS AREA.  THE STRONGEST THUNDERSTORMS WERE
FROM SOUTHERN SARPY COUNTY INTO SOUTHWESTERN POTTAWATTAMIE COUNTY.

THESE THUNDERSTORMS WILL LIKELY PRODUCE VERY HEAVY RAIN...SMALL HAIL AND
STRONG GUSTY WINDS AS THEY MOVE ACROSS THE OMAHA/COUNCIL BLUFFS
METROPOLITAN AREA.  THE THUNDERSTORMS WERE MOVING NORTHEAST AT 45 MPH.

A TORNADO WATCH REMAINS IN EFFECT FOR ALL OF EASTERN NEBRASKA AS WELL AS
WESTERN IOWA UNTIL 600 PM CST.  THESE THUNDERSTORMS HAVE THE POTENTIAL
TO PRODUCE SEVERE WEATHER INCLUDING TORNADOES.

PEOPLE IN EASTERN NEBRASKA AND ADJACENT SOUTHWEST IOWA SHOULD CONTINUE
TO MONITOR THE WEATHER CLOSELY THROUGH THE REST OF THE AFTERNOON.  BE
PREPARED TO TAKE SHELTER IN CASE A SEVERE WEATHER WARNING IS ISSUED.

SEELEY
Special weather statement, Mar 13, 3:03 PM CST, 1 hour 13 minutes before
NEZ010-020-IAZ009-131900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE OMAHA NE
255 PM CST TUE MAR 13 1990

...THUNDERSTORMS HAVE MOVED OUT OF THE OMAHA/COUNCIL BLUFF AREA...

NATIONAL WEATHER SERVICE RADAR SHOWED THAT THUNDERSTORMS HAVE MOVED OUT
OF THE OMAHA/COUNCIL BLUFFS AREA AND INTO WEST CENTRAL IOWA.
AT 250 PM CST THE HEAVIEST THUNDERSTORMS WERE FROM NORTHEAST HARRISON
INTO NORTHWEST SHELBY COUNTY OF IOWA...45 MILES NORTHEAST OF OMAHA.

NEW THUNDERSTORMS CONTINUE TO DEVELOP IN SOUTHEAST NEBRASKA.  STRONG
THUNDERSTORMS WERE INDICATED NEAR BEATRICE AND IN NORTHWEST
RICHARDSON COUNTY...75 MILES SOUTH OF OMAHA.  ALL OF THE THUNDERSTORMS
WERE MOVING NORTHEAST AT 45 MPH.

A TORNADO WATCH REMAINS IN EFFECT FOR ALL OF EASTERN NEBRASKA AS WELL AS
WESTERN IOWA UNTIL 600 PM CST.  THESE THUNDERSTORMS HAVE THE POTENTIAL
TO PRODUCE SEVERE WEATHER INCLUDING TORNADOES.

CONTINUE TO MONITOR THE WEATHER CLOSELY THROUGH THE REST OF THE
AFTERNOON.  LISTEN TO THE NATIONAL WEATHER SERVICE RADIO STATION OR
OTHER LOCAL TELEVISION AND RADIO STATIONS.  BE PREPARED TO TAKE SHELTER
IF A SEVERE WEATHER WARNING IS ISSUED.

SEELEY

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 13, 1:02 AM CSTSevere Thunderstorm WarningOAXCass, Sarpy43 min
Mar 13, 1:36 AM CSTSevere Thunderstorm WarningOAXDouglas69 min
Mar 13, 2:06 AM CSTSevere Thunderstorm WarningOAXSarpy54 min
Mar 13, 8:45 AM CSTSevere Thunderstorm WarningOAXDodge, Washington30 min
Mar 13, 4:16 PM CSTSevere Thunderstorm WarningOAXSarpy59 min
Mar 13, 4:46 PM CSTSevere Thunderstorm WarningOAXDouglas, Sarpy44 min
Mar 13, 4:46 PM CSTSevere Thunderstorm WarningOAXCass44 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 1990Every severe thunderstorm warning in 1990

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.