Alert archive / Nebraska / Tornado Warnings in 2011
Tornado Warning 43, NWS North Platte, NE
NWS North Platte, NE issued this tornado warning at Aug 11, 2011, 7:48 PM CDT for Brown County, Cherry County, Nebraska. It was in force for 27 min. 7 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 11, 2011, 7:48 PM CDT (00:48 UTC)
- Expired
- Aug 11, 2011, 8:15 PM CDT
- In force
- 27 min
- Issued by
- NWS North Platte, NE
- Area
- Storm-based polygon
Counties Brown County, NE, Cherry County, NE
The radar
The North Platte radar (KLNX), 81 km from the middle of the area, began a volume at 00:49 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 11, 7:49 PM CDT | TORNADO | 1 W Wood Lake, NE | SPOTTER WAS SEEING DEBRIS FLYING UNDER THE FUNNEL |
| Aug 11, 8:00 PM CDT | TORNADO | 1 S Wood Lake, NE | DEBRIS IN THE AIR AND POSSIBLY BECOMING RAIN WRAPPED. |
| Aug 11, 8:05 PM CDT | TORNADO | 3 Se Wood Lake, NE | ESTIMATING TORNADO BEING A QUARTER MILE WIDE AND HAVE SEEN DAMAGE ALONG TORNADO PATH |
| Aug 11, 8:05 PM CDT | TORNADO | 5 Sse Wood Lake, NE | TORNADO DAMAGED TWO TREE GROVES A HALF MILE APART WITH SEVERAL TREES UPROOTED...NUMEROUS LARGE BRANCHES BROKEN AND ONE TREE DEBARKED...UPROOTED AND MOVED SOUTH TO A FENCE LINE. ADDITIONAL DAMAGE INCLUDED THREE 20 FOOT WINDMILLS DAMAGED AND ONE DESTROYED...TWO |
| Aug 11, 8:15 PM CDT | FUNNEL CLOUD | 3 Sw Johnstown, NE | |
| Aug 11, 8:15 PM CDT | HAIL 1.75 | 3 Sw Johnstown, NE | |
| Aug 11, 8:22 PM CDT | TORNADO | 5 N Johnstown, NE | BRIEF TOUCHDOWN |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 11, 4:38 PM CDT | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.8 hours before the alert went out and 169 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
- 2513 J/kg
- Mixed-layer CIN
- -69 J/kg
- Mixed-layer LCL
- 1288 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 97 m²/s²
- 0-3 km storm-relative helicity
- 281 m²/s²
- Significant tornado parameter
- 1.9
- Supercell composite
- 19.6
The text
As transmitted, in the capitals the NWS used until 2016.
114 WFUS53 KLBF 120048 TORLBF NEC017-031-120115- /O.NEW.KLBF.TO.W.0043.110812T0048Z-110812T0115Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE NORTH PLATTE NE 748 PM CDT THU AUG 11 2011 THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A * TORNADO WARNING FOR... NORTHWESTERN BROWN COUNTY IN NORTH CENTRAL NEBRASKA... EAST CENTRAL CHERRY COUNTY IN NORTH CENTRAL NEBRASKA... * UNTIL 815 PM CDT * AT 749 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 13 MILES NORTHWEST OF JOHNSTOWN...OR 21 MILES SOUTHEAST OF VALENTINE...AND MOVING SOUTHEAST AT 10 MPH. * LOCATIONS IMPACTED INCLUDE... JOHNSTOWN AND WOOD LAKE. 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 4262 9994 4245 10019 4265 10045 4274 10024 TIME...MOT...LOC 0049Z 320DEG 8KT 4264 10028 $$ SCHULTZ
2 follow-up statements
498 WWUS53 KLBF 120057 SVSLBF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 757 PM CDT THU AUG 11 2011 NEC017-031-120115- /O.CON.KLBF.TO.W.0043.000000T0000Z-110812T0115Z/ BROWN NE-CHERRY NE- 757 PM CDT THU AUG 11 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR EAST CENTRAL CHERRY AND NORTHWESTERN BROWN COUNTIES UNTIL 815 PM CDT... AT 757 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 11 MILES WEST OF JOHNSTOWN...OR 21 MILES WEST OF AINSWORTH...MOVING SOUTHEAST AT 15 MPH. AT 749 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO 1 MILE WEST OF WOOD LAKE. LOCATIONS IMPACTED INCLUDE... JOHNSTOWN. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. && LAT...LON 4262 9994 4245 10019 4265 10045 4274 10024 TIME...MOT...LOC 0057Z 315DEG 15KT 4260 10024 $$ SCHULTZ
476 WWUS53 KLBF 120102 SVSLBF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 802 PM CDT THU AUG 11 2011 NEC017-031-120115- /O.CON.KLBF.TO.W.0043.000000T0000Z-110812T0115Z/ BROWN NE-CHERRY NE- 802 PM CDT THU AUG 11 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR EAST CENTRAL CHERRY AND NORTHWESTERN BROWN COUNTIES UNTIL 815 PM CDT... AT 800 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO. THIS TORNADO WAS LOCATED 1 MILE SOUTH OF WOOD LAKE...OR ABOUT 18 MILES WEST OF AINSWORTH...MOVING SOUTHEAST AT 15 MPH. LOCATIONS IMPACTED INCLUDE... JOHNSTOWN. PRECAUTIONARY/PREPAREDNESS ACTIONS... TO REPEAT...A TORNADO IS ON THE GROUND. 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 4262 9994 4245 10019 4265 10045 4274 10024 TIME...MOT...LOC 0102Z 315DEG 15KT 4256 10020 $$ SCHULTZ
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 7:03 PM CDT | Severe Thunderstorm Warning | LBF | Boyd, Holt, Keya Paha, Rock | 42 min |
| Aug 11, 7:46 PM CDT | Severe Thunderstorm Warning | LBF | Boyd, Holt, Keya Paha, Rock | 44 min |
| Aug 11, 7:55 PM CDT | Severe Thunderstorm Warning | LBF | Brown, Keya Paha, Rock | 50 min |
| Aug 11, 8:02 PM CDT | Severe Thunderstorm Warning | LBF | Chase, Perkins | 28 min |
| Aug 11, 8:07 PM CDT | Tornado Warning | LBF | Brown, Cherry | 23 min |
| Aug 11, 8:21 PM CDT | Tornado Warning | LBF | Cherry | 39 min |
| Aug 11, 8:30 PM CDT | Severe Thunderstorm Warning | LBF | Chase | 45 min |
| Aug 11, 8:30 PM CDT | Tornado Warning | LBF | Brown, Cherry | 30 min |
| Aug 11, 8:40 PM CDT | Severe Thunderstorm Warning | LBF | Brown, Holt, Keya Paha, Rock | 51 min |
| Aug 11, 8:58 PM CDT | Tornado Warning | LBF | Brown | 32 min |
| Aug 11, 8:59 PM CDT | Tornado Warning | LBF | Cherry | 31 min |
| Aug 11, 9:30 PM CDT | Severe Thunderstorm Warning | LBF | Blaine, Brown, Cherry, Thomas | 45 min |
| Aug 11, 9:50 PM CDT | Tornado Warning | LBF | Blaine, Cherry, Thomas | 25 min |
| Aug 11, 10:14 PM CDT | Tornado Warning | LBF | Blaine, Thomas | 31 min |
| Aug 11, 10:29 PM CDT | Severe Thunderstorm Warning | LBF | Blaine, Custer, Loup | 46 min |
| Aug 11, 10:38 PM CDT | Severe Thunderstorm Warning | LBF | Brown, Cherry | 52 min |
| Aug 11, 10:45 PM CDT | Severe Thunderstorm Warning | LBF | Blaine, Custer | 45 min |
| Aug 11, 11:17 PM CDT | Severe Thunderstorm Warning | LBF | Custer, Garfield, Loup | 43 min |
| Aug 11, 11:25 PM CDT | Severe Thunderstorm Warning | LBF | Blaine, Brown, Cherry, Thomas | 65 min |
| Aug 12, 12:09 AM CDT | Severe Thunderstorm Warning | LBF | Blaine, Custer, Loup | 51 min |
| Aug 12, 1:00 AM CDT | Severe Thunderstorm Warning | LBF | Custer, Loup | 45 min |
| Aug 12, 1:24 AM CDT | Severe Thunderstorm Warning | LBF | Cherry, Sheridan | 66 min |
| Aug 12, 1:57 AM CDT | Severe Thunderstorm Warning | LBF | Cherry | 27 min |
| Aug 12, 2:41 AM CDT | Severe Thunderstorm Warning | LBF | Cherry | 49 min |
| Aug 12, 3:02 AM CDT | Severe Thunderstorm Warning | LBF | Cherry | 32 min |
| Aug 12, 3:57 AM CDT | Areal Flood Advisory | LBF | Brown, Cherry, Rock | 6 hr |
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.