Alert archive / Nebraska / Tornado Warnings in 1991
Tornado Warning 7, NWS Omaha, NE
NWS Omaha, NE issued this tornado warning at Apr 26, 1991, 7:48 PM CDT for Sarpy County, Nebraska. It was in force for 27 min.
The area
The counties it named.
The facts
- Issued
- Apr 26, 1991, 7:48 PM CDT (00:48 UTC)
- Expired
- Apr 26, 1991, 8:15 PM CDT
- In force
- 27 min
- Issued by
- NWS Omaha, NE
- Area
- Whole counties
County Sarpy County, NE
The nearest sounding before it
Topeka, KS (KTOP), launched 00:00Z, 0.8 hours before the alert went out and 238 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
- NaN m above ground
- 0-6 km bulk shear
- 79 kt
- 0-1 km storm-relative helicity
- 409 m²/s²
- 0-3 km storm-relative helicity
- 485 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 17.2
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 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, Apr 26, 2:39 PM CDT, 5 hours 9 minutes before
NEZ010-015-019-020-262100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE OMAHA NE 230 PM CDT FRI APR 26 1991 ...TORNADO WATCH FOR EASTERN AND CENTRAL NEBRASKA UNTIL 8 PM CDT... A TORNADO WATCH CONTINUES IN EFFECT FOR MOST OF CENTRAL AND EASTERN NEBRASKA UNTIL 800 PM CDT THIS EVENING. AT 230 PM CDT THUNDERSTORMS WERE STRENGTHENING RAPIDLY OVER NORTHCENTRAL KANSAS AND EXTREME SOUTH CENTRAL NEBRASKA...IN THE CONCORDIA AREA AND BETWEEN HASTINGS AND BEATRICE. THEY WERE LOCATED BETWEEN 90 MILES AND 110 MILES SOUTHWEST OF OMAHA...OR 50 TO 70 MILES SOUTHWEST OF LINCOLN. THE STORMS WERE MOVING TO THE NORTH NORTHEAST AT 35 TO 40 MILES AN HOUR. LINCOLN WILL PROBABLY NOT SEE ANY STORMS UNTIL AFTER 4 PM AND OMAHA NOT UNTIL AFTER 5 PM...BUT AFTER THAT SEVERE WEATHER IS DEFINITELY A THREAT. KEEP IN TOUCH WITH RADIO/TV/AND NOAA WEATHER RADIO THROUGH THIS AFTERNOON AND EVENING FOR UPDATES ON THIS DANGEROUS WEATHER SITUATION. COSTANTINOU
Special weather statement, Apr 26, 2:47 PM CDT, 5 hours 1 minute before
NEZ003-004-007-008-009-262330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE NORFOLK NE 240 PM CDT FRI APR 26 1991 ...A TORNADO WATCH FOR NORTHEAST AND NORTHCENTRAL NEBRASKA UNTIL 8 PM CDT THIS FRIDAY EVENING... AT 240 PM CDT NORFOLK RADAR CONTINUED TO INDICATE SOME STRONG THUNDERSTORMS OVER PARTS OF NORTHCENTRAL NEBRASKA. THE STRONGEST STORM WHICH WAS LIKELY PRODUCING SMALL HAIL AND GUSTY WINDS WAS LOCATED 50 MILES EAST OF VALENTINE...OR ABOUT 5 MILES NORTHWEST OF BASSETT. OTHER STORMS WERE SCATTERED ACROSS NORTHCENTRAL NEBRASKA BUT AT THE PRESENT TIME WERE NOT STRONG. THE STORMS ARE MOVING NORTH AT 30 MPH SO PERSONS IN EASTERN KEYA PAHA COUNTY SHOULD BE ALERT IN THE NEXT 45 MI$NUTES AS THE STRONGEST STORM MOVES THAT WAY. IF YOU LIVE IN NORTHCENTRAL OR NORTHEAST NEBRASKA BE PREPARED FOR THE POSSIBILITY OF SEVERE WEATHER THROUGH THIS EVENING. KLEFFMAN
Special weather statement, Apr 26, 3:01 PM CDT, 4 hours 47 minutes before
NEZ015-262000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LINCOLN NE 300 PM CDT FRI APR 26 1991 ...TORNADO WATCH FOR SOUTHAST NEBRASKA UNTIL 8 PM... ...SEVERE THUNDERSTORM WARNING FOR JEFFERSON COUNTY UNTIL 330 PM... A LINE OF SEVERE THUNDERSTORMS STRETCHED FROM DORCHESTER-CRETE AREA SOUTHEAST TOWARDS CONCORDIA KANSAS. THESE STORMS WERE MOVING NORTHEAST AT 35 MILES AN HOUR. THE LEADING EDGE OF THESE STORMS HAD PUSHED INTO JEFFERSON COUNTY AS FAR EAST AS FAIRBURY. AT THIS SPEED THE STORMS WILL FIRST APPROACH LINCOLN BETWEEN 330 AND 4PM. THE TORNADO WATCH REMAINS IN EFFECT. STAY TUNED TO RADIO/TV OR NOAA WEATHER RADIO FOR FUTURE DEVELOPMENTS. THIS IS A DANGEROUS WEATHER SITUEATION. TZ
Special weather statement, Apr 26, 4:07 PM CDT, 3 hours 41 minutes before
NEZ015-262130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LINCOLN NE 405 PM CDT FRI APR 26 1991 ...TORNADO WATCH FOR SOUTHAST NEBRASKA UNTIL 8 PM... A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 PM CDT FOR GAGE COUNTY IN SOUTHEAST NEBRASKA. ALSO A SEVERE THUNDERSTORM WARNING IS IN EFFECT UNTIL 430 PM CDT FOR SOUTHEAST JEFFERSON COUNTY. THE SEVERE THUNDERSTORM WARNING FOR SALINE SEWARD AND BUTLER COUNTIES IS CANCELLED. THE THUNDERSTORMS IN THE ABOVE THREE COUNTIES HAVE WEAKENED OR MOVED OUT OF THE AREA WHILE THE SEVERE THUNDERSTORM THAT PRODUCED A TORNADO IN NORTHEAST KANSAS IS IN GAGE COUNTY ABOUT 10 MILES SOUTHWEST OF BEATRICE MOVING NORTHEAST AT 35 MPH. ALSO STRONG THUNDERSTORMS WERE OCCURING IN SEVERAL AREAS OF JEFFERSON COUNTY. JB
Special weather statement, Apr 26, 4:25 PM CDT, 3 hours 23 minutes before
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</html>The office that day
Everything else NWS Omaha, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 7:20 PM CDT | Severe Thunderstorm Warning | OAX | Douglas, Washington | 70 min |
| Apr 26, 7:20 PM CDT | Severe Thunderstorm Warning | OAX | Sarpy | 70 min |
| Apr 26, 7:27 PM CDT | Severe Thunderstorm Warning | OAX | Cass, Otoe | 63 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.