Alert archive / Nebraska / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 13, NWS Omaha, NE
NWS Omaha, NE issued this severe thunderstorm warning at Apr 27, 1989, 9:00 PM CDT for Cass County, Nebraska; Mills County, Iowa. It was in force for 60 min.
The area
The counties it named.
The facts
- Issued
- Apr 27, 1989, 9:00 PM CDT (02:00 UTC)
- Expired
- Apr 27, 1989, 10:00 PM CDT
- In force
- 60 min
- Issued by
- NWS Omaha, NE
- Area
- Whole counties
Counties Mills County, IA, Cass 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 00:00Z, 2.0 hours before the alert went out and 56 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
- 17 J/kg
- Mixed-layer CIN
- -176 J/kg
- Mixed-layer LCL
- 3565 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 2 m²/s²
- 0-3 km storm-relative helicity
- 41 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, Apr 27, 5:47 PM CDT, 3 hours 13 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORFOLK NE 545 PM CDT THU APR 27 1989 STRONG THUNDERSTORMS IN NORTHEAST NEBRASKA AT 540 PM CDT VERY STRONG THUNDERSTORMS WERE DEVELOPING FROM JUST SOUTH OF NORFOLK TO NEAR LINCOLN. THE STORMS WERE MOVING NORTH AT 30 MPH AND EXTENDED FROM THE NORFOLK AREA TO AROUND COLUMBUS NEBRASKA. SMALL HAIL ALONG WITH SOME HEAVY RAIN...DANGEROUS LIGHTNING AND WIND GUST TO ABOUT 50 MPH AS BEEN REPORTED AT C OLUMBUS...NORFOLK..MONROE AND HUMPHREY DURING THE PAST 30 MINUTES. A TORNADO WATCH REMAINS IN EFFECT FOR MUCH OF EASTERN NEBRASKA UNTIL 8 PM CDT. GBX
Special weather statement, Apr 27, 5:55 PM CDT, 3 hours 5 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORFOLK NE 550 PM CDT THU APR 27 1989 STRONG THUNDERSTORMS IN NORTHEAST NEBRASKA AT 540 PM CDT VERY STRONG THUNDERSTORMS WERE DEVELOPING FROM JUST SOUTH OF NORFOLK TO NEAR LINCOLN. THE STORMS WERE MOVING NORTH AT 30 MPH. SMALL HAIL ALONG WITH SOME HEAVY RAIN...DANGEROUS LIGHTNING AND WIND GUST TO ABOUT 50 MPH AS BEEN REPORTED AT COLUMBUS...NORFOLK..MONROE AND HUMPHREY DURING THE PAST 30 MINU2TES. A TORNADO WATCH REMAINS IN EFFECT FOR MUCH OF EASTERN NEBRASKA UNTIL 8 PM CDT. GBX
Local storm report, Apr 27, 6:01 PM CDT, 2 hours 59 minutes before
LOCAL STORM REPORT NATIONAL WEATHER SERVICE LINCOLN NE 600 PM CDT THU APR 27 1989 540 PM CDT FEW WIND GUSTS TO 47 KTS/54 MPH...PEA SIZE HAIL. 535 PM CDT MILFORD 17WSW OF LNK...MARBLE SIZE HAIL. DA;VIS
Special weather statement, Apr 27, 6:38 PM CDT, 2 hours 22 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORFOLK NE 635 PM CDT THU APR 27 1989 AT 630 PM CDT INTENSE THUNDERSTORMS WERE SCATTERED ACROSS NORTHEAST NEBRASKA FROM 60 MILES NORTHWEST AND NORTH OF NORFOLK OR FROM NIOBRARA AND NEAR YANKTON... TO 40 MILES SOUTHEAST OF NORFOLK NEAR WEST POINT. THE STRONGEST STORMS WERE LOCATED ABOUT 30 MILES SOUTH OF YANKTON... MOVING NORTHEAST 35 MPH. THIS STORM COULD PRODUCE MARBLE SIZE HAIL AS IT PASSES ACROSS HARTINGTON AND WYNOT BY 645 PM CDT. THE OTHER STORMS WERE MOVING NORTHEAST AT 35 MPH AND SHOULD REACH AND SIOUX CITY BY 700 PM. ANOTHER BATCH OF THUNDERSTORMS WAS MOVING NORTH FROM WEST OF COLUMBUS SOUTH TO THE KANSAS BORDER. A TORNADO sWATCH REMAINS IN EFFECT FOR MUCH OF EASTERN NEBRASKA UNTIL 800 PM CDT. SMITH
Local storm report, Apr 27, 8:03 PM CDT, 57 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LINCOLN NE
800 PM CDT THU APR 27 1989
750 PM CDT NATIONAL WEATHER SERVICE OBSERVER REPORTED 1 INCH HAIL
DOWNTOWN LINCOLN WHILE DRIVING TO OFFICE.
DAVISThe office that day
Everything else NWS Omaha, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 27, 7:07 PM CDT | Severe Thunderstorm Warning | OAX | Cass | 38 min |
| Apr 27, 7:17 PM CDT | Severe Thunderstorm Warning | OAX | Butler, Seward | 43 min |
| Apr 27, 7:20 PM CDT | Severe Thunderstorm Warning | OAX | Douglas, Sarpy | 40 min |
| Apr 27, 7:29 PM CDT | Tornado Warning | OAX | Douglas | 31 min |
| Apr 27, 7:42 PM CDT | Severe Thunderstorm Warning | OAX | Lancaster | 48 min |
| Apr 27, 7:52 PM CDT | Severe Thunderstorm Warning | OAX | Cass, Otoe | 68 min |
| Apr 27, 8:21 PM CDT | Severe Thunderstorm Warning | OAX | Burt, Dodge, Washington | 69 min |
| Apr 27, 8:27 PM CDT | Tornado Warning | OAX | Cass, Otoe | 33 min |
| Apr 27, 8:28 PM CDT | Severe Thunderstorm Warning | OAX | Douglas, Sarpy | 62 min |
| Apr 27, 9:19 PM CDT | Flash Flood Warning | OAX | Cass | 4 hr |
| Apr 27, 9:42 PM CDT | Severe Thunderstorm Warning | OAX | Richardson | 63 min |
| Apr 27, 7:22 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Pottawattamie | 68 min |
| Apr 27, 7:57 PM CDT | Tornado Warning | OAX | Harrison | 33 min |
| Apr 27, 8:58 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie | 62 min |
| Apr 27, 9:42 PM CDT | Severe Thunderstorm Warning | OAX | Montgomery, Page | 63 min |
Nearby
Severe Thunderstorm Warnings in Nebraska, 1989Severe Thunderstorm Warnings in Iowa, 1989Every severe thunderstorm warning in 1989
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.