Alert archive / Nebraska / Tornado Warnings in 2011
Tornado Warning 29, NWS Cheyenne, WY
NWS Cheyenne, WY issued this tornado warning at Jul 14, 2011, 4:58 PM MDT for Banner County, Scotts Bluff County, Nebraska. It was in force for 47 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
- Jul 14, 2011, 4:58 PM MDT (22:58 UTC)
- Expired
- Jul 14, 2011, 5:45 PM MDT
- In force
- 47 min
- Issued by
- NWS Cheyenne, WY
- Area
- Storm-based polygon
Counties Banner County, NE, Scotts Bluff County, NE
The radar
The Cheyenne radar (KCYS), 126 km from the middle of the area, began a volume at 23:00 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 |
|---|---|---|---|
| Jul 14, 5:10 PM MDT | TORNADO | 13 Se Gering, NE | |
| Jul 14, 5:22 PM MDT | HAIL 1 | 5 Sw Mcgrew, NE |
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 |
|---|---|---|---|
| Jul 14, 2:43 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 11.0 hours before the alert went out and 204 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
- 255 J/kg
- Mixed-layer CIN
- -304 J/kg
- Mixed-layer LCL
- 1170 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 68 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
166 WFUS55 KCYS 142258 TORCYS NEC007-157-142345- /O.NEW.KCYS.TO.W.0029.110714T2258Z-110714T2345Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE CHEYENNE WY 458 PM MDT THU JUL 14 2011 THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A * TORNADO WARNING FOR... NORTHEASTERN BANNER COUNTY IN THE PANHANDLE OF NEBRASKA... EXTREME SOUTHEASTERN SCOTTS BLUFF COUNTY IN THE PANHANDLE OF NEBRASKA... * UNTIL 545 PM MDT * AT 455 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 6 MILES SOUTHEAST OF WILDCAT HILLS STATE RECREATION AREA...OR 17 MILES SOUTH OF SCOTTSBLUFF...AND MOVING NORTHEAST AT 20 MPH. * LOCATIONS IMPACTED INCLUDE... HUBBARD GAP AND MCGREW. 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 10338 4164 10337 4156 10360 4165 10368 TIME...MOT...LOC 2258Z 224DEG 18KT 4164 10358 $$ RE
2 follow-up statements
702
WWUS55 KCYS 142322
SVSCYS
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
522 PM MDT THU JUL 14 2011
NEC007-157-142345-
/O.CON.KCYS.TO.W.0029.000000T0000Z-110714T2345Z/
BANNER NE-SCOTTS BLUFF NE-
522 PM MDT THU JUL 14 2011
...A TORNADO WARNING REMAINS IN EFFECT FOR EXTREME SOUTHEASTERN
SCOTTS BLUFF AND EXTREME NORTHEASTERN BANNER COUNTIES UNTIL 545 PM
MDT...
AT 518 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED 6 MILES NORTHWEST OF HUBBARD GAP...OR 14 MILES
SOUTHEAST OF SCOTTSBLUFF...MOVING NORTHEAST AT 15 MPH.
LOCATIONS IMPACTED INCLUDE...
MCGREW.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4168 10338 4164 10351 4170 10360 4179 10342
4182 10338 4175 10338
TIME...MOT...LOC 2322Z 222DEG 15KT 4171 10350
$$
RE022
WWUS55 KCYS 142342
SVSCYS
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
542 PM MDT THU JUL 14 2011
NEC007-157-142353-
/O.EXP.KCYS.TO.W.0029.000000T0000Z-110714T2345Z/
BANNER NE-SCOTTS BLUFF NE-
542 PM MDT THU JUL 14 2011
...THE TORNADO WARNING FOR EXTREME SOUTHEASTERN SCOTTS BLUFF AND
EXTREME NORTHEASTERN BANNER COUNTIES WILL EXPIRE AT 545 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 4168 10338 4164 10351 4170 10360 4179 10342
4182 10338 4175 10338
TIME...MOT...LOC 2343Z 222DEG 15KT 4178 10342
$$
REThe office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 10:26 PM MDT | Severe Thunderstorm Warning | CYS | Scotts Bluff, Sioux | 32 min |
| Jul 14, 4:04 AM MDT | Flash Flood Watch | CYS | Cheyenne, Kimball | 21 hr |
| Jul 14, 4:03 PM MDT | Severe Thunderstorm Warning | CYS | Banner, Kimball | 42 min |
| Jul 14, 4:35 PM MDT | Areal Flood Advisory | CYS | Banner | 4 hr |
| Jul 14, 4:44 PM MDT | Severe Thunderstorm Warning | CYS | Banner, Kimball, Scotts Bluff | 46 min |
| Jul 14, 5:29 PM MDT | Severe Thunderstorm Warning | CYS | Kimball | 46 min |
| Jul 14, 5:39 PM MDT | Severe Thunderstorm Warning | CYS | Banner, Morrill, Scotts Bluff | 40 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.