Alert archive / Iowa / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 7, NWS Omaha, NE
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.
- 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
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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</html>Special weather statement, Mar 13, 10:03 AM CST, 3 hours 35 minutes before
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</html>Special weather statement, Mar 13, 10:04 AM CST, 3 hours 34 minutes before
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</html>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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 13, 1:02 AM CST | Severe Thunderstorm Warning | OAX | Cass, Sarpy | 43 min |
| Mar 13, 1:36 AM CST | Severe Thunderstorm Warning | OAX | Douglas | 69 min |
| Mar 13, 2:06 AM CST | Severe Thunderstorm Warning | OAX | Sarpy | 54 min |
| Mar 13, 8:45 AM CST | Severe Thunderstorm Warning | OAX | Dodge, Washington | 30 min |
| Mar 13, 4:16 PM CST | Severe Thunderstorm Warning | OAX | Sarpy | 59 min |
| Mar 13, 4:16 PM CST | Severe Thunderstorm Warning | OAX | Cass, Otoe | 59 min |
| Mar 13, 4:46 PM CST | Severe Thunderstorm Warning | OAX | Douglas, Sarpy | 44 min |
| Mar 13, 4:46 PM CST | Severe Thunderstorm Warning | OAX | Cass | 44 min |
| Mar 13, 2:24 AM CST | Severe Thunderstorm Warning | OAX | Harrison | 51 min |
| Mar 13, 10:27 AM CST | Severe Thunderstorm Warning | OAX | Harrison | 33 min |
| Mar 13, 3:55 PM CST | Severe Thunderstorm Warning | OAX | Montgomery, Page | 30 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.