Alert archive / Nebraska / Tornado Warnings in 2012
Tornado Warning 27, NWS North Platte, NE
NWS North Platte, NE issued this tornado warning at Aug 2, 2012, 7:04 PM MDT for Perkins County, Nebraska. It was in force for 26 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 2, 2012, 7:04 PM MDT (01:04 UTC)
- Expired
- Aug 2, 2012, 7:30 PM MDT
- In force
- 26 min
- Issued by
- NWS North Platte, NE
- Area
- Storm-based polygon
County Perkins County, NE
The radar
The Goodland radar (KGLD), 159 km from the middle of the area, began a volume at 01:07 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.
The nearest sounding before it
N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 1.1 hours before the alert went out and 123 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
- 1601 J/kg
- Mixed-layer CIN
- -46 J/kg
- Mixed-layer LCL
- 2010 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- -23 m²/s²
- 0-3 km storm-relative helicity
- 59 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.7
The text
As transmitted, in the capitals the NWS used until 2016.
281
WFUS53 KLBF 030104
TORLBF
NEC135-030130-
/O.NEW.KLBF.TO.W.0027.120803T0104Z-120803T0130Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
704 PM MDT THU AUG 2 2012
THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A
* TORNADO WARNING FOR...
SOUTHWESTERN PERKINS COUNTY IN SOUTHWEST NEBRASKA...
* UNTIL 730 PM MDT
* AT 659 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED 7 MILES NORTH OF VENANGO...OR 14 MILES SOUTH OF
BIG SPRINGS...AND MOVING SOUTHEAST AT 15 MPH.
* LOCATIONS IMPACTED INCLUDE...
VENANGO AND BRANDON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS TORNADO WARNING REPLACES THE TORNADO WARNING PREVIOUSLY ISSUED
FOR NORTHWEST PERKINS COUNTY.
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 4070 10205 4071 10206 4088 10206 4089 10204
4082 10168
TIME...MOT...LOC 0103Z 308DEG 13KT 4086 10203
$$
SPRINGER2 follow-up statements
493
WWUS53 KLBF 030113
SVSLBF
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
813 PM CDT THU AUG 2 2012
NEC135-030130-
/O.CON.KLBF.TO.W.0027.000000T0000Z-120803T0130Z/
PERKINS NE-
713 PM MDT THU AUG 2 2012
...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHWESTERN PERKINS
COUNTY UNTIL 730 PM MDT...
AT 709 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED NEAR BRANDON...OR 12 MILES WEST OF GRANT...MOVING
SOUTHEAST AT 10 MPH.
LOCATIONS IMPACTED INCLUDE...
MAINLY RURAL AREAS OF SOUTHWESTERN PERKINS COUNTY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4070 10205 4071 10206 4088 10206 4089 10204
4082 10168
TIME...MOT...LOC 0114Z 304DEG 10KT 4078 10193
$$
SPRINGER554
WWUS53 KLBF 030127
SVSLBF
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
827 PM CDT THU AUG 2 2012
NEC135-030137-
/O.EXP.KLBF.TO.W.0027.000000T0000Z-120803T0130Z/
PERKINS NE-
727 PM MDT THU AUG 2 2012
...THE TORNADO WARNING FOR SOUTHWESTERN PERKINS COUNTY WILL EXPIRE AT
830 PM CDT/730 PM MDT/...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
REMEMBER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR
PERKINS COUNTY UNTIL 8 PM MDT.
LAT...LON 4070 10205 4071 10206 4088 10206 4089 10204
4082 10168
TIME...MOT...LOC 0127Z 304DEG 10KT 4076 10189
$$
SPRINGERThe office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 6:00 PM MDT | Tornado Warning | LBF | Deuel | 30 min |
| Aug 2, 6:27 PM MDT | Severe Thunderstorm Warning | LBF | Deuel, Keith, Perkins | 30 min |
| Aug 2, 6:40 PM MDT | Tornado Warning | LBF | Deuel, Perkins | 25 min |
| Aug 2, 6:55 PM MDT | Severe Thunderstorm Warning | LBF | Perkins | 49 min |
| Aug 2, 7:30 PM MDT | Severe Thunderstorm Warning | LBF | Chase, Perkins | 45 min |
| Aug 3, 12:19 AM MDT | Severe Thunderstorm Warning | LBF | Boyd, Brown, Holt, Keya Paha, Rock | 56 min |
| Aug 3, 4:53 PM MDT | Severe Thunderstorm Warning | LBF | Boyd, Keya Paha | 67 min |
| Aug 3, 5:40 PM MDT | Severe Thunderstorm Warning | LBF | Brown, Rock | 65 min |
Nearby
Tornado Warnings in Nebraska, 2012Every tornado warning in 2012Tornadoes 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.