Alert archive / Nebraska / Tornado Warnings in 2011
Tornado Warning 50, NWS North Platte, NE
NWS North Platte, NE issued this tornado warning at Aug 11, 2011, 10:14 PM CDT for Blaine County, Thomas County, Nebraska. It was in force for 31 min. 2 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, 10:14 PM CDT (03:14 UTC)
- Expired
- Aug 11, 2011, 10:45 PM CDT
- In force
- 31 min
- Issued by
- NWS North Platte, NE
- Area
- Storm-based polygon
Counties Blaine County, NE, Thomas County, NE
The radar
The North Platte radar (KLNX), 41 km from the middle of the area, began a volume at 03:16 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, 10:22 PM CDT | FUNNEL CLOUD | 5 Se Purdum, NE | |
| Aug 11, 10:40 PM CDT | HAIL 1.25 | 3 Ene Dunning, NE | HAIL WAS FALLING AT HIGHWAY 91...MILE MARKER 3 |
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, 3.2 hours before the alert went out and 96 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.
001 WFUS53 KLBF 120314 TORLBF NEC009-171-120345- /O.NEW.KLBF.TO.W.0050.110812T0314Z-110812T0345Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE NORTH PLATTE NE 1014 PM CDT THU AUG 11 2011 THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A * TORNADO WARNING FOR... WESTERN BLAINE COUNTY IN NORTH CENTRAL NEBRASKA... NORTHEASTERN THOMAS COUNTY IN NORTH CENTRAL NEBRASKA... * UNTIL 1045 PM CDT * AT 1014 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 6 MILES SOUTH OF PURDUM...OR 18 MILES EAST OF THEDFORD...AND MOVING SOUTHEAST AT 15 MPH. * LOCATIONS IMPACTED INCLUDE... HALSEY...DUNNING...HIGHWAY 2 MILE MARKER 230 AND HIGHWAY 91 MILE MARKER 10. 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 4182 9983 4175 10027 4204 10039 4209 10008 TIME...MOT...LOC 0315Z 335DEG 13KT 4198 10022 $$ SCHULTZ
3 follow-up statements
660 WWUS53 KLBF 120324 SVSLBF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 1024 PM CDT THU AUG 11 2011 NEC009-171-120345- /O.CON.KLBF.TO.W.0050.000000T0000Z-110812T0345Z/ BLAINE NE-THOMAS NE- 1024 PM CDT THU AUG 11 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHEASTERN THOMAS AND WESTERN BLAINE COUNTIES UNTIL 1045 PM CDT... AT 1024 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 8 MILES NORTHEAST OF HALSEY...OR 15 MILES WEST OF BREWSTER...MOVING SOUTHEAST AT 15 MPH. AT 1022 PM CDT...A FUNNEL CLOUD WAS REPORTED 5 MILES SOUTHEAST OF PURDUM BY A TRAINED WEATHER SPOTTER. LOCATIONS IMPACTED INCLUDE... HALSEY...DUNNING...HIGHWAY 2 MILE MARKER 230 AND HIGHWAY 91 MILE MARKER 10. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. && LAT...LON 4182 9983 4175 10027 4204 10039 4209 10008 TIME...MOT...LOC 0324Z 335DEG 13KT 4195 10014 $$ SCHULTZ
800
WWUS53 KLBF 120334
SVSLBF
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1034 PM CDT THU AUG 11 2011
NEC171-120343-
/O.CAN.KLBF.TO.W.0050.000000T0000Z-110812T0345Z/
THOMAS NE-
1034 PM CDT THU AUG 11 2011
...THE TORNADO WARNING FOR NORTHEASTERN THOMAS COUNTY IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THOMAS COUNTY.
LAT...LON 4182 9983 4175 10026 4176 10027 4205 10027
4209 10008
TIME...MOT...LOC 0333Z 335DEG 13KT 4188 10011
$$
NEC009-120345-
/O.CON.KLBF.TO.W.0050.000000T0000Z-110812T0345Z/
BLAINE NE-
1034 PM CDT THU AUG 11 2011
...A TORNADO WARNING REMAINS IN EFFECT FOR WESTERN BLAINE COUNTY
UNTIL 1045 PM CDT...
AT 1034 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED JUST NORTH OF DUNNING...OR 13 MILES WEST OF
BREWSTER...MOVING SOUTHEAST AT 15 MPH.
AT 1022 PM CDT...A FUNNEL CLOUD WAS REPORTED WITH THIS STORM 5 MILES
SOUTHEAST OF PURDUM.
LOCATIONS IMPACTED INCLUDE...
DUNNING AND HIGHWAY 91 MILE MARKER 10.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4182 9983 4175 10026 4176 10027 4205 10027
4209 10008
TIME...MOT...LOC 0333Z 335DEG 13KT 4188 10011
$$
SCHULTZ978
WWUS53 KLBF 120346
SVSLBF
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1046 PM CDT THU AUG 11 2011
NEC009-120356-
/O.EXP.KLBF.TO.W.0050.000000T0000Z-110812T0345Z/
BLAINE NE-
1046 PM CDT THU AUG 11 2011
...THE TORNADO WARNING FOR WESTERN BLAINE COUNTY HAS EXPIRED...
THE TORNADO THREAT HAS DIMINISHED...THEREFORE THE TORNADO WARNING HAS
EXPIRED. HOWEVER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT
FOR CENTRAL BLAINE COUNTY UNTIL 1130 PM CDT.
ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A TORNADO
WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT.
LAT...LON 4182 9983 4175 10026 4176 10027 4205 10027
4209 10008
TIME...MOT...LOC 0334Z 335DEG 13KT 4188 10011
$$
SCHULTZThe 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, 7:48 PM CDT | Tornado Warning | LBF | Brown, Cherry | 27 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, 10:29 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.