Alert archive / Wyoming / Tornado Warnings in 2014
Tornado Warning 8, NWS Cheyenne, WY
NWS Cheyenne, WY issued this tornado warning at May 31, 2014, 4:46 PM MDT for Platte County, Wyoming. It was in force for 29 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
- May 31, 2014, 4:46 PM MDT (22:46 UTC)
- Expired
- May 31, 2014, 5:15 PM MDT
- In force
- 29 min
- Issued by
- NWS Cheyenne, WY
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
County Platte County, WY
The radar
The Cheyenne radar (KCYS), 78 km from the middle of the area, began a volume at 22:46 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
Denver, CO (KDEN), launched 12:00Z, 10.8 hours before the alert went out and 264 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
- 1220 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 111 m²/s²
- 0-3 km storm-relative helicity
- 113 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
886
WFUS55 KCYS 312246
TORCYS
WYC031-312315-
/O.NEW.KCYS.TO.W.0008.140531T2246Z-140531T2315Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE CHEYENNE WY
446 PM MDT SAT MAY 31 2014
THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A
* TORNADO WARNING FOR...
SOUTH CENTRAL PLATTE COUNTY IN SOUTHEAST WYOMING...
* UNTIL 515 PM MDT
* AT 441 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
TORNADO WAS LOCATED 12 MILES SOUTHWEST OF BORDEAUX...AND MOVING
EAST AT 10 MPH.
HAZARD...TORNADO.
SOURCE...WEATHER SPOTTERS REPORTED FUNNEL CLOUD.
IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT
WITHOUT SHELTER. DAMAGE TO ROOFS...WINDOWS AND VEHICLES
WILL OCCUR.
* THIS DANGEROUS STORM WILL AFFECT MAINLY RURAL AREAS OF SOUTH
CENTRAL PLATTE 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.
MOTORISTS SHOULD NOT TAKE SHELTER UNDER HIGHWAY OVERPASSES. AS A LAST
RESORT...PARK YOUR VEHICLE AND STAY PUT.
&&
LAT...LON 4191 10488 4176 10486 4179 10514 4185 10514
TIME...MOT...LOC 2245Z 264DEG 8KT 4182 10509
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
MAZUR2 follow-up statements
235
WWUS55 KCYS 312257
SVSCYS
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE CHEYENNE WY
457 PM MDT SAT MAY 31 2014
WYC031-312315-
/O.CON.KCYS.TO.W.0008.000000T0000Z-140531T2315Z/
PLATTE WY-
457 PM MDT SAT MAY 31 2014
...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL PLATTE
COUNTY UNTIL 515 PM MDT...
AT 456 PM MDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 10 MILES SOUTHWEST OF BORDEAUX...AND MOVING EAST AT 10
MPH.
HAZARD...TORNADO AND PING PONG BALL SIZE HAIL.
SOURCE...WEATHER SPOTTERS REPORTED FUNNEL CLOUD.
IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT
WITHOUT SHELTER. DAMAGE TO ROOFS...WINDOWS AND VEHICLES
IS POSSIBLE OCCUR.
LOCATIONS IMPACTED INCLUDE...
MAINLY RURAL AREAS OF SOUTHERN PLATTE COUNTY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.
MOTORISTS SHOULD NOT TAKE SHELTER UNDER HIGHWAY OVERPASSES. AS A LAST
RESORT...PARK YOUR VEHICLE AND STAY PUT.
&&
LAT...LON 4179 10510 4186 10512 4191 10488 4180 10486
TIME...MOT...LOC 2257Z 264DEG 8KT 4182 10505
TORNADO...RADAR INDICATED
HAIL...1.50IN
$$
MAZUR492 WWUS55 KCYS 312312 SVSCYS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 512 PM MDT SAT MAY 31 2014 WYC031-312322- /O.EXP.KCYS.TO.W.0008.000000T0000Z-140531T2315Z/ PLATTE WY- 512 PM MDT SAT MAY 31 2014 ...THE TORNADO WARNING FOR SOUTH CENTRAL PLATTE COUNTY WILL EXPIRE AT 515 PM MDT... THE TORNADO THREAT HAS DIMINISHED...THEREFORE THE TORNADO WARNING HAS EXPIRED. HOWEVER...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN PLATTE AND SOUTHWESTERN GOSHEN COUNTIES. LAT...LON 4179 10510 4186 10512 4191 10488 4180 10486 TIME...MOT...LOC 2312Z 264DEG 8KT 4182 10501 $$ MAZUR
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 31, 2:43 PM MDT | Special Weather Statement | CYS | Carbon | 47 min |
| May 31, 3:11 PM MDT | Special Weather Statement | CYS | Converse | 34 min |
| May 31, 4:01 PM MDT | Special Weather Statement | CYS | Laramie | 44 min |
| May 31, 4:06 PM MDT | Special Weather Statement | CYS | 24 min | |
| May 31, 4:14 PM MDT | Special Weather Statement | CYS | Albany | 31 min |
| May 31, 4:19 PM MDT | Special Weather Statement | CYS | 56 min | |
| May 31, 4:40 PM MDT | Special Weather Statement | CYS | Laramie | 50 min |
| May 31, 5:04 PM MDT | Severe Thunderstorm Warning | CYS | Goshen, Platte | 41 min |
| May 31, 5:10 PM MDT | Special Weather Statement | CYS | Converse | 65 min |
| May 31, 5:33 PM MDT | Severe Thunderstorm Warning | CYS | Goshen | 42 min |
| May 31, 5:41 PM MDT | Severe Thunderstorm Warning | CYS | Converse, Niobrara, Platte | 49 min |
| May 31, 5:55 PM MDT | Special Weather Statement | CYS | Platte | 50 min |
Nearby
Tornado Warnings in Wyoming, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.