Alert archive / Nebraska / Tornado Warnings in 2011
Tornado Warning 19, NWS Omaha, NE
NWS Omaha, NE issued this tornado warning at Jun 17, 2011, 6:47 PM CDT for Dodge County, Saunders County, Nebraska. It was in force for 28 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 17, 2011, 6:47 PM CDT (23:47 UTC)
- Expired
- Jun 17, 2011, 7:15 PM CDT
- In force
- 28 min
- Issued by
- NWS Omaha, NE
- Area
- Storm-based polygon
Counties Dodge County, NE, Saunders County, NE
The radar
The Omaha radar (KOAX), 26 km from the middle of the area, began a volume at 23:51 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 11.8 hours before the alert went out and 26 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
- 621 J/kg
- Mixed-layer CIN
- -297 J/kg
- Mixed-layer LCL
- 895 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 157 m²/s²
- 0-3 km storm-relative helicity
- 146 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
122 WFUS53 KOAX 172347 TOROAX NEC053-155-180015- /O.NEW.KOAX.TO.W.0019.110617T2347Z-110618T0015Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA 647 PM CDT FRI JUN 17 2011 THE NATIONAL WEATHER SERVICE IN OMAHA HAS ISSUED A * TORNADO WARNING FOR... SOUTH CENTRAL DODGE COUNTY IN EAST CENTRAL NEBRASKA... NORTH CENTRAL SAUNDERS COUNTY IN EAST CENTRAL NEBRASKA... * UNTIL 715 PM CDT * AT 641 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS WERE TRACKING A CONFIRMED TORNADO 5 MILES NORTHWEST OF CEDAR BLUFFS...OR 36 MILES WEST OF OMAHA. DOPPLER RADAR SHOWED THIS TORNADO MOVING SOUTHEAST AT 5 MPH. AT 645 PM CDT...A TORNADO WAS REPORTED WEST OF FREMONT. * LOCATIONS IMPACTED INCLUDE... MAINLY RURAL AREAS OF EXTREME NORTHERN SAUNDERS AND SOUTHERN DODGE COUNTIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. && LAT...LON 4151 9645 4140 9668 4148 9673 4157 9657 TIME...MOT...LOC 2346Z 322DEG 6KT 4146 9665 $$ FOLTZ
2 follow-up statements
023 WWUS53 KOAX 172358 SVSOAX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA 658 PM CDT FRI JUN 17 2011 NEC053-155-180015- /O.CON.KOAX.TO.W.0019.000000T0000Z-110618T0015Z/ DODGE NE-SAUNDERS NE- 658 PM CDT FRI JUN 17 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR SAUNDERS AND SOUTH CENTRAL DODGE COUNTIES UNTIL 715 PM CDT... AT 655 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR CEDAR BLUFFS...OR 35 MILES WEST OF OMAHA...MOVING SOUTHEAST AT 5 MPH. LOCATIONS IMPACTED INCLUDE... PRAGUE...CEDAR BLUFFS...WAHOO...MEAD...YUTAN...WESTON... VALPARAISO...ASHLAND...COLON...LESHARA...MALMO...ITHACA...MEMPHIS STATE RECREATION AREA...MEMPHIS AND CERESCO. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. && LAT...LON 4151 9645 4140 9668 4148 9673 4157 9657 TIME...MOT...LOC 2358Z 322DEG 6KT 4144 9663 $$ FOLTZ
947 WWUS53 KOAX 180008 SVSOAX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE OMAHA/VALLEY NEBRASKA 708 PM CDT FRI JUN 17 2011 NEC053-155-180018- /O.EXP.KOAX.TO.W.0019.000000T0000Z-110618T0015Z/ DODGE NE-SAUNDERS NE- 708 PM CDT FRI JUN 17 2011 ...THE TORNADO WARNING FOR SAUNDERS AND SOUTH CENTRAL DODGE COUNTIES WILL EXPIRE AT 715 PM CDT... THE STORM WHICH PROMPTED THE WARNING NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY. HOWEVER GUSTY WINDS AND HEAVY RAIN ARE STILL POSSIBLE WITH THIS THUNDERSTORM. LAT...LON 4151 9645 4140 9668 4148 9673 4157 9657 TIME...MOT...LOC 0008Z 322DEG 6KT 4143 9662 $$ FOLTZ
The office that day
Everything else NWS Omaha, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 16, 10:39 PM CDT | Severe Thunderstorm Warning | OAX | Johnson, Nemaha, Pawnee, Richardson | 51 min |
| Jun 17, 1:25 AM CDT | Severe Thunderstorm Warning | OAX | Cedar, Knox, Pierce | 34 min |
Nearby
Tornado Warnings in Nebraska, 2011Every tornado warning in 2011Tornadoes in 2011
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; radar from the NEXRAD Level II archive.