Alert archive / Iowa / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 7, NWS Omaha, NE

March 13, 1990Shelby County, Iowa

NWS Omaha, NE issued this severe thunderstorm warning at Mar 13, 1990, 1:38 PM CST for Shelby County, Iowa. It was in force for 20 min.

The area

The counties it named.

The facts

Issued
Mar 13, 1990, 1:38 PM CST (19:38 UTC)
Expired
Mar 13, 1990, 1:58 PM CST
In force
20 min
Issued by
NWS Omaha, NE
Area
Whole counties

County Shelby County, IA

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, 7.6 hours before the alert went out and 97 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

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, Mar 13, 9:40 AM CST, 3 hours 58 minutes before
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Special weather statement, Mar 13, 10:03 AM CST, 3 hours 35 minutes before
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Special weather statement, Mar 13, 10:04 AM CST, 3 hours 34 minutes before
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Special weather statement, Mar 13, 12:01 PM CST, 1 hour 37 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, 40 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, 39 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

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, 4:16 PM CSTSevere Thunderstorm WarningOAXCass, Otoe59 min
Mar 13, 4:46 PM CSTSevere Thunderstorm WarningOAXDouglas, Sarpy44 min
Mar 13, 4:46 PM CSTSevere Thunderstorm WarningOAXCass44 min
Mar 13, 2:24 AM CSTSevere Thunderstorm WarningOAXHarrison51 min
Mar 13, 10:27 AM CSTSevere Thunderstorm WarningOAXHarrison33 min
Mar 13, 3:55 PM CSTSevere Thunderstorm WarningOAXMontgomery, Page30 min

Nearby

Severe Thunderstorm Warnings in Iowa, 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.