Alert archive / Nebraska / Tornado Warnings in 2011
Tornado Warning 42, NWS North Platte, NE
NWS North Platte, NE issued this tornado warning at Aug 10, 2011, 6:21 PM MDT for Cherry County, Nebraska. It was in force for 24 min. 4 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 10, 2011, 6:21 PM MDT (00:21 UTC)
- Expired
- Aug 10, 2011, 6:45 PM MDT
- In force
- 24 min
- Issued by
- NWS North Platte, NE
- Area
- Storm-based polygon
County Cherry County, NE
The radar
The North Platte radar (KLNX), 86 km from the middle of the area, began a volume at 00:22 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 10, 6:30 PM MDT | HAIL 1 | 22 S Cody, NE | |
| Aug 10, 6:40 PM MDT | FUNNEL CLOUD | 20 Wsw Merritt Reservoi, NE | |
| Aug 10, 6:40 PM MDT | HAIL 1.75 | 20 Wsw Merritt Reservoi, NE | |
| Aug 10, 6:40 PM MDT | HAIL 1.75 | 27 S Cody, NE | REPORTED SEEING A ROTATING WALL CLOUD JUST TO THE NORTH OF THE LOCATION. |
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 10, 4:03 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.4 hours before the alert went out and 164 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
- 765 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 1073 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 95 m²/s²
- 0-3 km storm-relative helicity
- 271 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 11.0
The text
As transmitted, in the capitals the NWS used until 2016.
386 WFUS53 KLBF 110021 TORLBF NEC031-110045- /O.NEW.KLBF.TO.W.0042.110811T0021Z-110811T0045Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE NORTH PLATTE NE 621 PM MDT WED AUG 10 2011 THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A * TORNADO WARNING FOR... CENTRAL CHERRY COUNTY IN NORTH CENTRAL NEBRASKA... * UNTIL 645 PM MDT * AT 617 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 5 MILES SOUTHWEST OF SCHOOLHOUSE LAKE...OR 43 MILES WEST OF VALENTINE...AND MOVING SOUTH AT 20 MPH. * THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF CENTRAL CHERRY COUNTY. 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 4238 10118 4237 10149 4271 10146 4271 10122 TIME...MOT...LOC 0021Z 359DEG 16KT 4262 10134 $$ POWER
2 follow-up statements
702 WWUS53 KLBF 110037 SVSLBF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 637 PM MDT WED AUG 10 2011 NEC031-110045- /O.CON.KLBF.TO.W.0042.000000T0000Z-110811T0045Z/ CHERRY NE- 637 PM MDT WED AUG 10 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL CHERRY COUNTY UNTIL 645 PM MDT... AT 631 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 9 MILES SOUTHWEST OF SCHOOLHOUSE LAKE...OR 28 MILES SOUTH OF CODY OR 37 MILES NORTHEAST OF WHITMAN...MOVING SOUTH AT 20 MPH. THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF CENTRAL CHERRY COUNTY. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. && LAT...LON 4238 10118 4237 10149 4271 10146 4271 10122 TIME...MOT...LOC 0035Z 359DEG 16KT 4256 10134 $$ POWER
923 WWUS53 KLBF 110044 SVSLBF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE NORTH PLATTE NE 644 PM MDT WED AUG 10 2011 NEC031-110054- /O.EXP.KLBF.TO.W.0042.000000T0000Z-110811T0045Z/ CHERRY NE- 644 PM MDT WED AUG 10 2011 ...THE TORNADO WARNING FOR CENTRAL CHERRY COUNTY WILL EXPIRE AT 645 PM MDT... THE TORNADO THREAT HAS DIMINISHED...THEREFORE THE TORNADO WARNING HAS EXPIRED. HOWEVER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR THE AREA. LAT...LON 4238 10118 4237 10149 4271 10146 4271 10122 TIME...MOT...LOC 0044Z 359DEG 16KT 4252 10134 $$ POWER
The office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 10, 6:55 PM MDT | Severe Thunderstorm Warning | LBF | Cherry | 50 min |
| Aug 10, 7:44 PM MDT | Severe Thunderstorm Warning | LBF | Cherry, Hooker | 46 min |
| Aug 10, 8:29 PM MDT | Severe Thunderstorm Warning | LBF | Hooker, McPherson | 46 min |
| Aug 10, 8:42 PM MDT | Areal Flood Advisory | LBF | Hooker | 3 hr |
| Aug 10, 9:15 PM MDT | Severe Thunderstorm Warning | LBF | McPherson | 30 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.