Alert archive / Nebraska / Tornado Watches in 2012
Tornado Watch 167
The Storm Prediction Center issued this tornado watch at Apr 14, 2012, 2:33 PM CDT for 13 counties in Nebraska. It was in force for 8 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 14, 2012, 2:33 PM CDT (19:33 UTC)
- Expired
- Apr 14, 2012, 11:00 PM CDT
- In force
- 8 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2.5 in
- Strongest gust expected
- 60 kt
Counties Blaine County, NE, Custer County, NE, Frontier County, NE, Garfield County, NE, Hayes County, NE, Holt County, NE, Hooker County, NE, Lincoln County, NE, Logan County, NE, Loup County, NE, McPherson County, NE, Thomas County, NE, Wheeler County, NE
The radar
The North Platte radar (KLNX), 69 km from the middle of the area, began a volume at 19:32 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 SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 60%
- One or more EF2 to EF5 tornadoes
- 50%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 70%
- One or more hailstones of 2 inches or more
- 60%
- Six or more combined severe hail and wind reports
- 90%
Warnings issued inside it
33 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 14, 3:46 PM CDT | Severe Thunderstorm Warning | LBF | Frontier, Lincoln | 44 min |
| Apr 14, 4:01 PM CDT | Severe Thunderstorm Warning | LBF | Lincoln, Logan, McPherson | 44 min |
| Apr 14, 4:13 PM CDT | Severe Thunderstorm Warning | LBF | Logan, Thomas | 47 min |
| Apr 14, 4:20 PM CDT | Severe Thunderstorm Warning | LBF | Lincoln, Logan, McPherson | 25 min |
| Apr 14, 4:22 PM CDT | Severe Thunderstorm Warning | LBF | Lincoln, Logan | 38 min |
| Apr 14, 4:28 PM CDT | Tornado Warning | LBF | Logan, McPherson | 32 min |
| Apr 14, 4:45 PM CDT | Severe Thunderstorm Warning | LBF | Lincoln, Logan, McPherson | 30 min |
| Apr 14, 5:00 PM CDT | Severe Thunderstorm Warning | LBF | Logan | 45 min |
| Apr 14, 5:08 PM CDT | Severe Thunderstorm Warning | LBF | Lincoln | 22 min |
| Apr 14, 5:19 PM CDT | Flash Flood Warning | LBF | Logan | 4 hr |
| Apr 14, 5:19 PM CDT | Tornado Warning | LBF | Lincoln | 26 min |
| Apr 14, 5:44 PM CDT | Tornado Warning | LBF | Lincoln | 16 min |
| Apr 14, 6:01 PM CDT | Tornado Warning | LBF | Lincoln | 29 min |
| Apr 14, 6:09 PM CDT | Severe Thunderstorm Warning | LBF | Custer | 51 min |
| Apr 14, 6:09 PM CDT | Severe Thunderstorm Warning | LBF | Lincoln | 51 min |
| Apr 14, 6:19 PM CDT | Tornado Warning | LBF | Lincoln | 41 min |
| Apr 14, 6:33 PM CDT | Severe Thunderstorm Warning | LBF | Lincoln, Logan | 27 min |
| Apr 14, 6:34 PM CDT | Tornado Warning | LBF | Blaine, Custer, Loup | 26 min |
| Apr 14, 6:41 PM CDT | Tornado Warning | LBF | Lincoln | 33 min |
| Apr 14, 6:54 PM CDT | Flash Flood Warning | LBF | Lincoln, Logan | 4 hr |
| Apr 14, 6:55 PM CDT | Severe Thunderstorm Warning | LBF | Lincoln, Logan | 65 min |
| Apr 14, 7:01 PM CDT | Tornado Warning | LBF | Blaine, Loup | 16 min |
| Apr 14, 7:05 PM CDT | Severe Thunderstorm Warning | LBF | Blaine, Custer | 40 min |
| Apr 14, 7:18 PM CDT | Severe Thunderstorm Warning | LBF | Lincoln | 42 min |
| Apr 14, 7:35 PM CDT | Severe Thunderstorm Warning | LBF | Custer, Lincoln, Logan | 40 min |
| Apr 14, 7:41 PM CDT | Tornado Warning | LBF | Blaine, Custer, Loup | 34 min |
| Apr 14, 8:07 PM CDT | Tornado Warning | LBF | Garfield, Holt, Loup, Rock | 25 min |
| Apr 14, 8:13 PM CDT | Severe Thunderstorm Warning | LBF | Custer | 47 min |
| Apr 14, 8:15 PM CDT | Severe Thunderstorm Warning | LBF | Custer | 33 min |
| Apr 14, 8:29 PM CDT | Severe Thunderstorm Warning | LBF | Garfield, Holt, Loup, Rock, Wheeler | 46 min |
| Apr 14, 8:39 PM CDT | Severe Thunderstorm Warning | LBF | Custer, Garfield, Loup | 51 min |
| Apr 14, 8:47 PM CDT | Severe Thunderstorm Warning | LBF | Keith, Lincoln, McPherson | 43 min |
| Apr 14, 9:32 PM CDT | Severe Thunderstorm Warning | LBF | Custer | 43 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 7.6 hours before the alert went out and 24 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1610 m above ground
- 0-6 km bulk shear
- 69 kt
- 0-1 km storm-relative helicity
- 192 m²/s²
- 0-3 km storm-relative helicity
- 202 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
926
WWUS20 KWNS 141929
SEL7
SPC WW 141929
NEZ000-150200-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 167
NWS STORM PREDICTION CENTER NORMAN OK
130 PM MDT SAT APR 14 2012
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
CENTRAL NEBRASKA
EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 130 PM UNTIL
800 PM MDT.
TORNADOES...HAIL TO 2.5 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 35 MILES WEST OF NORTH
PLATTE NEBRASKA TO 25 MILES SOUTHEAST OF BROKEN BOW NEBRASKA.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU7).
REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.
OTHER WATCH INFORMATION...CONTINUE...WW 165...WW 166...
DISCUSSION...THUNDERSTORMS ARE EXPECTED TO DEVELOP AND INTENSIFY
RAPIDLY IN THE NEXT COUPLE OF HOURS ACROSS PARTS OF NORTHWEST KS AND
WEST CENTRAL NEB. THIS AREA IS NEAR SURFACE TRIPLE-POINT WHERE
SUBSTANTIALLY BACKED LOW LEVEL WINDS AND STEEP LOW LEVEL LAPSE RATES
WILL PROMOTE TORNADO THREAT. SUPERCELLS CAPABLE OF LARGE HAIL AND
DAMAGING WINDS ARE ALSO EXPECTED.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
450. MEAN STORM MOTION VECTOR 22025.
...HARTSPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 14, 10:43 AM CDT | Tornado Watch | SPC | Hitchcock, Red Willow | 7 hr |
| Apr 14, 11:27 AM CDT | Mesoscale Discussion | SPC | Adams, Buffalo, Clay, Fillmore, Franklin, Furnas and 19 more | 2 hr |
| Apr 14, 12:00 PM CDT | Tornado Watch | SPC | Adams, Antelope, Boone, Buffalo, Burt, Butler and 46 more | 7 hr |
| Apr 14, 1:41 PM CDT | Mesoscale Discussion | SPC | Arthur, Custer, Dawson, Frontier, Garden, Grant and 9 more | 2 hr |
| Apr 14, 2:15 PM CDT | Mesoscale Discussion | SPC | Adams, Burt, Butler, Cass, Clay, Colfax and 22 more | 90 min |
| Apr 14, 4:47 PM CDT | Mesoscale Discussion | SPC | Cass, Douglas, Gage, Johnson, Lancaster, Nemaha and 5 more | 58 min |
| Apr 14, 5:24 PM CDT | Tornado Watch | SPC | Hitchcock, Red Willow | 9 hr |
| Apr 14, 6:27 PM CDT | Tornado Watch | SPC | Adams, Buffalo, Cass, Clay, Dawson, Fillmore and 30 more | 9 hr |
| Apr 14, 6:57 PM CDT | Mesoscale Discussion | SPC | Adams, Buffalo, Butler, Cass, Clay, Douglas and 26 more | 63 min |
Nearby
Tornado Watches in Nebraska, 2012Every tornado watch in 2012
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.