Alert archive / Nebraska / Tornado Warnings in 2014
Tornado Warning 4, NWS Cheyenne, WY
NWS Cheyenne, WY issued this tornado warning at May 18, 2014, 7:08 PM MDT for Box Butte County, Nebraska. It was in force for 52 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
- May 18, 2014, 7:08 PM MDT (01:08 UTC)
- Expired
- May 18, 2014, 8:00 PM MDT
- In force
- 52 min
- Issued by
- NWS Cheyenne, WY
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.0 in
County Box Butte County, NE
The radar
The Cheyenne radar (KCYS), 182 km from the middle of the area, began a volume at 01:09 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 18, 7:16 PM MDT | HAIL 1 | 17 Wnw Alliance, NE | |
| May 18, 7:27 PM MDT | HAIL 0.5 | 10 Sw Hemingford, NE | |
| May 18, 7:34 PM MDT | HAIL 1 | 5 W Alliance, NE | |
| May 18, 7:45 PM MDT | HAIL 0.88 | 9 W Alliance, NE |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Rapid City, SD (KRAP), launched 00:00Z, 1.1 hours before the alert went out and 210 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
- 197 J/kg
- Mixed-layer CIN
- -316 J/kg
- Mixed-layer LCL
- 2188 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 123 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
794
WFUS55 KCYS 190108
TORCYS
NEC013-190200-
/O.NEW.KCYS.TO.W.0004.140519T0108Z-140519T0200Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CHEYENNE WY
708 PM MDT SUN MAY 18 2014
THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A
* TORNADO WARNING FOR...
SOUTHERN BOX BUTTE COUNTY IN THE PANHANDLE OF NEBRASKA...
* UNTIL 800 PM MDT
* AT 704 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
TORNADO WAS LOCATED NEAR KILPATRICK LAKE...AND MOVING NORTHEAST AT
20 MPH.
HAZARD...TORNADO AND QUARTER SIZE HAIL.
SOURCE...RADAR INDICATED ROTATION. STORM HAS A HISTORY OF PRODUCING
MULTIPLE TORNADOES.
IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE
TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREE DAMAGE IS
LIKELY.
* THIS DANGEROUS STORM WILL BE NEAR...
BEREA AROUND 750 PM MDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOTORISTS SHOULD NOT TAKE SHELTER UNDER HIGHWAY OVERPASSES. AS A LAST
RESORT...PARK YOUR VEHICLE AND STAY PUT.
TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN
CHEYENNE.
&&
LAT...LON 4232 10303 4211 10289 4203 10327 4216 10336
TIME...MOT...LOC 0108Z 236DEG 17KT 4209 10322
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
RUBIN3 follow-up statements
195
WWUS55 KCYS 190120
SVSCYS
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
720 PM MDT SUN MAY 18 2014
NEC013-190200-
/O.CON.KCYS.TO.W.0004.000000T0000Z-140519T0200Z/
BOX BUTTE NE-
720 PM MDT SUN MAY 18 2014
...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL BOX BUTTE COUNTY
UNTIL 800 PM MDT...
AT 718 PM MDT...A CONFIRMED TORNADO WAS LOCATED 8 MILES EAST OF
KILPATRICK LAKE...AND MOVING NORTHEAST AT 20 MPH.
HAZARD...DAMAGING TORNADO AND BASEBALL SIZE HAIL.
SOURCE...LAW ENFORCEMENT CONFIRMED TORNADO.
IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE
TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREE DAMAGE IS
LIKELY.
THIS TORNADIC STORM WILL BE NEAR...
BEREA AROUND 735 PM MDT.
IF YOU ARE IN BEREA...TAKE SHELTER NOW.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOTORISTS SHOULD NOT TAKE SHELTER UNDER HIGHWAY OVERPASSES. AS A LAST
RESORT...PARK YOUR VEHICLE AND STAY PUT.
THIS STORM HAS A HISTORY OF PRODUCING TORNADOES. TAKE COVER IN A
BASEMENT OR STORM SHELTER NOW!
TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN
CHEYENNE.
&&
LAT...LON 4222 10324 4232 10303 4211 10289 4205 10317
TIME...MOT...LOC 0120Z 236DEG 17KT 4213 10313
TORNADO...OBSERVED
HAIL...2.75IN
$$
RUBIN377
WWUS55 KCYS 190130
SVSCYS
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
730 PM MDT SUN MAY 18 2014
NEC013-190200-
/O.CON.KCYS.TO.W.0004.000000T0000Z-140519T0200Z/
BOX BUTTE NE-
730 PM MDT SUN MAY 18 2014
...A TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL BOX BUTTE COUNTY
UNTIL 800 PM MDT...
AT 727 PM MDT...A CONFIRMED TORNADO WAS LOCATED 5 MILES SOUTHWEST OF
BEREA...AND MOVING NORTHEAST AT 20 MPH.
HAZARD...DAMAGING TORNADO AND BASEBALL SIZE HAIL.
SOURCE...LAW ENFORCEMENT CONFIRMED TORNADO.
IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT
SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE
TO ROOFS...WINDOWS AND VEHICLES WILL OCCUR. TREE DAMAGE IS
LIKELY.
THIS TORNADIC STORM WILL BE NEAR...
BEREA AROUND 732 PM MDT.
IF YOU ARE IN BEREA...TAKE SHELTER NOW.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS STORM HAS A HISTORY OF PRODUCING TORNADOES. TAKE COVER IN A
BASEMENT OR STORM SHELTER NOW!
TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN
CHEYENNE.
&&
LAT...LON 4223 10317 4232 10303 4211 10289 4207 10309
TIME...MOT...LOC 0130Z 236DEG 17KT 4215 10304
TORNADO...OBSERVED
HAIL...2.75IN
$$
RUBIN430 WWUS55 KCYS 190142 SVSCYS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 742 PM MDT SUN MAY 18 2014 NEC013-190152- /O.CAN.KCYS.TO.W.0004.000000T0000Z-140519T0200Z/ BOX BUTTE NE- 742 PM MDT SUN MAY 18 2014 ...THE TORNADO WARNING FOR CENTRAL BOX BUTTE COUNTY IS CANCELLED... THE TORNADO THREAT HAS DIMINISHED...THEREFORE THE TORNADO WARNING HAS BEEN CANCELLED. HOWEVER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR THE AREA. A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EAST CENTRAL BOX BUTTE COUNTY UNTIL 815 PM MDT...INCLUDING ALLIANCE. LAT...LON 4223 10317 4232 10303 4211 10289 4207 10309 TIME...MOT...LOC 0142Z 236DEG 17KT 4218 10298 $$ RUBIN
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 18, 6:35 PM MDT | Tornado Warning | CYS | Box Butte, Sioux | 40 min |
| May 18, 6:38 PM MDT | Special Weather Statement | CYS | Kimball | 67 min |
| May 18, 6:44 PM MDT | Special Weather Statement | CYS | Morrill | 46 min |
| May 18, 6:54 PM MDT | Severe Thunderstorm Warning | CYS | Cheyenne, Kimball, Morrill | 66 min |
| May 18, 7:40 PM MDT | Severe Thunderstorm Warning | CYS | Box Butte | 35 min |
| May 18, 10:01 PM MDT | Special Weather Statement | CYS | Box Butte | 44 min |
| May 19, 3:16 PM MDT | Special Weather Statement | CYS | Sioux | 44 min |
| May 19, 5:16 PM MDT | Special Weather Statement | CYS | Scotts Bluff | 44 min |
| May 19, 5:51 PM MDT | Special Weather Statement | CYS | Banner | 39 min |
Nearby
Tornado Warnings in Nebraska, 2014Every tornado warning in 2014Tornadoes in 2014
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.