Alert archive / Nebraska / Tornado Warnings in 2011
Tornado Warning 2, NWS North Platte, NE
NWS North Platte, NE issued this tornado warning at May 9, 2011, 8:32 PM MDT for Sheridan County, Nebraska. It was in force for 28 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
- May 9, 2011, 8:32 PM MDT (02:32 UTC)
- Expired
- May 9, 2011, 9:00 PM MDT
- In force
- 28 min
- Issued by
- NWS North Platte, NE
- Area
- Storm-based polygon
County Sheridan County, NE
The radar
The Rapid City radar (KUDX), 169 km from the middle of the area, began a volume at 02:35 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 |
|---|---|---|---|
| May 9, 8:43 PM MDT | HAIL 1 | Hay Springs, NE | |
| May 9, 9:05 PM MDT | HAIL 2 | Rushville, 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 |
|---|---|---|---|
| May 9, 2:26 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Rapid City, SD (KUNR), launched 00:00Z, 2.5 hours before the alert went out and 163 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
- 231 J/kg
- Mixed-layer CIN
- -129 J/kg
- Mixed-layer LCL
- 581 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 114 m²/s²
- 0-3 km storm-relative helicity
- 247 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
178
WFUS53 KLBF 100232
TORLBF
NEC161-100300-
/O.NEW.KLBF.TO.W.0002.110510T0232Z-110510T0300Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORTH PLATTE NE
832 PM MDT MON MAY 9 2011
THE NATIONAL WEATHER SERVICE IN NORTH PLATTE HAS ISSUED A
* TORNADO WARNING FOR...
CENTRAL SHERIDAN COUNTY IN THE PANHANDLE OF NEBRASKA...
* UNTIL 900 PM MDT
* AT 827 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED 10 MILES SOUTHWEST OF INTERSECTION OF HIGHWAY 87
AND ANTELOPE ROAD...OR 12 MILES SOUTHWEST OF HAY SPRINGS...AND
MOVING NORTHEAST AT 45 MPH.
* THIS DANGEROUS STORM WILL BE NEAR...
INTERSECTION OF HIGHWAY 87 AND ANTELOPE ROAD AROUND 840 PM MDT.
WALGREN LAKE STATE RECREATION AREA...HAY SPRINGS AND INTERSECTION
OF BEAVER CREEK ROAD AND WHITE CLAY CREEK ROAD AROUND 845 PM MDT.
RUSHVILLE AROUND 855 PM MDT.
CLINTON AROUND 900 PM MDT.
OTHER LOCATIONS IMPACTED BY THIS DANGEROUS STORM INCLUDE HIGHWAY 87
MILE MARKER 60.
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 4250 10278 4270 10278 4290 10240 4272 10223
4247 10278 4249 10278
TIME...MOT...LOC 0232Z 236DEG 38KT 4258 10279
$$
POWER2 follow-up statements
326
WWUS53 KLBF 100245
SVSLBF
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
945 PM CDT MON MAY 9 2011
NEC161-100300-
/O.CON.KLBF.TO.W.0002.000000T0000Z-110510T0300Z/
SHERIDAN NE-
845 PM MDT MON MAY 9 2011
...A TORNADO WARNING REMAINS IN EFFECT FOR NORTHERN SHERIDAN COUNTY
UNTIL 900 PM MDT...
AT 840 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS
STORM WAS LOCATED NEAR INTERSECTION OF HIGHWAY 87 AND ANTELOPE
ROAD...OR NEAR HAY SPRINGS...MOVING NORTHEAST AT 45 MPH.
IN ADDITION...AT 840 PM MDT QUARTER SIZED HAIL WAS REPORTED IN HAYS
SPRINGS WITH THIS STORM.
THIS DANGEROUS STORM WILL BE NEAR...
RUSHVILLE AND CLINTON AROUND 900 PM MDT.
OTHER LOCATIONS IMPACTED BY THIS DANGEROUS STORM INCLUDE HIGHWAY 87
MILE MARKER 60.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
&&
LAT...LON 4250 10278 4270 10278 4290 10240 4272 10223
4247 10278 4249 10278
TIME...MOT...LOC 0244Z 236DEG 38KT 4265 10264
$$
POWER294
WWUS53 KLBF 100304
SVSLBF
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORTH PLATTE NE
1004 PM CDT MON MAY 9 2011
NEC161-100313-
/O.EXP.KLBF.TO.W.0002.000000T0000Z-110510T0300Z/
SHERIDAN NE-
904 PM MDT MON MAY 9 2011
...THE TORNADO WARNING FOR NORTHERN SHERIDAN COUNTY HAS EXPIRED...
THE TORNADO THREAT HAS DIMINISHED...THEREFORE THE TORNADO WARNING HAS
EXPIRED. HOWEVER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT
FOR THE AREA.
REMEMBER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR
SHERIDAN COUNTY UNTIL 930 PM MDT.
LAT...LON 4250 10278 4270 10278 4290 10240 4272 10223
4247 10278 4249 10278
TIME...MOT...LOC 0245Z 236DEG 38KT 4265 10263
$$
POWERThe office that day
Everything else NWS North Platte, NE issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 9:02 PM MDT | Severe Thunderstorm Warning | LBF | Sheridan | 28 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.