Alert archive / Wyoming / Tornado Warnings in 2012
Tornado Warning 6, NWS Cheyenne, WY
NWS Cheyenne, WY issued this tornado warning at Jun 7, 2012, 3:44 PM MDT for Goshen County, Platte County, Wyoming. It was in force for 46 min. 7 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
- Jun 7, 2012, 3:44 PM MDT (21:44 UTC)
- Expired
- Jun 7, 2012, 4:30 PM MDT
- In force
- 46 min
- Issued by
- NWS Cheyenne, WY
- Area
- Storm-based polygon
Counties Goshen County, WY, Platte County, WY
The radar
The Cheyenne radar (KCYS), 88 km from the middle of the area, began a volume at 21:46 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 7, 3:45 PM MDT | TSTM WND GST 75 | Bordeaux, WY | WINDS WERE SUSTAINED AT 59 MPH. |
| Jun 7, 3:45 PM MDT | HAIL 1 | 3 Ese Bordeaux, WY | |
| Jun 7, 4:00 PM MDT | HAIL 1.25 | 6 Se Bordeaux, WY | |
| Jun 7, 4:00 PM MDT | TORNADO 2 | Wheatland, WY | A TORNADO MOVED FROM WEST OF WHEATLAND TO NORTHEAST OF CHUGWATER. PRELIMINARY REPORTS INDICATE 5 HOUSES DESTROYED...TRAIN DERAILED AND ONE PERSON INJURED BY THE TORNADO. NWS CHEYENNE STORM SURVEY RATED THE TORNADO AN EF2. |
| Jun 7, 4:00 PM MDT | TORNADO | Wheatland, WY | A TORNADO MOVED FROM WEST OF WHEATLAND TO NORTHEAST OF CHUGWATER. PRELIMINARY REPORTS INDICATE 5 HOUSES DESTROYED...TRAIN DERAILED AND ONE PERSON INJURED BY THE TORNADO. |
| Jun 7, 4:19 PM MDT | TORNADO | 4 Ese I-25 Exit 65, WY | TORNADO DISSIPATED AT 419 PM. |
| Jun 7, 4:23 PM MDT | HAIL 1 | 1 Se Wheatland, WY |
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 |
|---|---|---|---|
| Jun 7, 11:46 AM MDT | Tornado Watch | SPC | 10 hr |
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 9.7 hours before the alert went out and 263 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
- 1398 J/kg
- Mixed-layer CIN
- -35 J/kg
- Mixed-layer LCL
- 671 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 42 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 1.8
The text
As transmitted, in the capitals the NWS used until 2016.
842 WFUS55 KCYS 072144 TORCYS WYC015-031-072230- /O.NEW.KCYS.TO.W.0006.120607T2144Z-120607T2230Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE CHEYENNE WY 344 PM MDT THU JUN 7 2012 THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A * TORNADO WARNING FOR... WEST CENTRAL GOSHEN COUNTY IN SOUTHEAST WYOMING... CENTRAL PLATTE COUNTY IN SOUTHEAST WYOMING... * UNTIL 430 PM MDT * AT 337 PM MDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO NEAR BORDEAUX...OR 5 MILES SOUTH OF WHEATLAND. THERE HAVE BEEN REPORTS OF STRUCTURAL DAMAGE WITH THIS TORNADO. DOPPLER RADAR SHOWED THIS TORNADO MOVING SOUTHEAST AT 20 MPH. IN ADDITION...QUARTER SIZED HAIL HAS BEEN REPORTED SIX MILES SOUTHWEST OF WHEATLAND WITH THIS STORM. THIS TORNADO WARNING REPLACES THE PREVIOUS TORNADO WARNING. * LOCATIONS IMPACTED INCLUDE... MAINLY RURAL AREAS OF EASTERN PLATTE AND EXTREME WESTERN GOSHEN COUNTIES. THIS INCLUDES INTERSTATE 25 IN WYOMING BETWEEN MILE MARKERS 57 AND 81. PRECAUTIONARY/PREPAREDNESS ACTIONS... HEAVY RAINFALL MAY OBSCURE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE TORNADO. TAKE COVER NOW. && LAT...LON 4196 10449 4171 10469 4195 10509 4211 10496 TIME...MOT...LOC 2140Z 304DEG 17KT 4197 10492 $$ FINCH
2 follow-up statements
650 WWUS55 KCYS 072200 SVSCYS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 400 PM MDT THU JUN 7 2012 WYC015-031-072230- /O.CON.KCYS.TO.W.0006.000000T0000Z-120607T2230Z/ GOSHEN WY-PLATTE WY- 400 PM MDT THU JUN 7 2012 ...A TORNADO WARNING REMAINS IN EFFECT FOR EAST CENTRAL PLATTE AND WEST CENTRAL GOSHEN COUNTIES UNTIL 430 PM MDT... AT 355 PM MDT...TRAINED WEATHER SPOTTERS REPORTED A TORNADO. THERE HAVE BEEN REPORTS OF STRUCTURAL DAMAGE WITH THIS TORNADO. THIS TORNADO WAS LOCATED 6 MILES EAST OF BORDEAUX...OR 10 MILES SOUTHEAST OF WHEATLAND...MOVING SOUTHEAST AT 20 MPH. IN ADDITION...QUARTER SIZED HAIL HAS BEEN REPORTED WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... MAINLY RURAL AREAS OF EXTREME WESTERN GOSHEN AND SOUTHEASTERN PLATTE COUNTIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... TO REPEAT...A TORNADO IS ON THE GROUND. TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. HEAVY RAINFALL MAY OBSCURE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE TORNADO. TAKE COVER NOW. && LAT...LON 4191 10502 4208 10488 4196 10449 4171 10469 TIME...MOT...LOC 2157Z 304DEG 17KT 4192 10483 $$ FINCH
382 WWUS55 KCYS 072214 SVSCYS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 414 PM MDT THU JUN 7 2012 WYC015-031-072230- /O.CON.KCYS.TO.W.0006.000000T0000Z-120607T2230Z/ GOSHEN WY-PLATTE WY- 414 PM MDT THU JUN 7 2012 ...A TORNADO WARNING REMAINS IN EFFECT FOR SOUTHEASTERN PLATTE AND WEST CENTRAL GOSHEN COUNTIES UNTIL 430 PM MDT... AT 409 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR AND STORM SPOTTERS WERE TRACKING A LARGE AND EXTREMELY DANGEROUS TORNADO. THIS TORNADO WAS LOCATED 6 MILES NORTH OF CHUGWATER...OR 16 MILES SOUTHEAST OF WHEATLAND...MOVING SOUTHEAST AT 20 MPH. AT THIS TIME IT APPEARS THAT THE TORNADO WILL MOVE TO THE NORTHEAST OF CHUGWATER. IN ADDITION...QUARTER SIZED HAIL HAS BEEN REPORTED WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... MAINLY RURAL AREAS OF EXTREME WESTERN GOSHEN AND SOUTHEASTERN PLATTE COUNTIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... TO REPEAT...A LARGE...EXTREMELY DANGEROUS AND POTENTIALLY DEADLY TORNADO IS ON THE GROUND. TO PROTECT YOUR LIFE...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. HEAVY RAINFALL MAY OBSCURE THIS TORNADO. DO NOT WAIT TO SEE OR HEAR THE TORNADO. TAKE COVER NOW. && LAT...LON 4185 10491 4204 10476 4196 10449 4171 10469 TIME...MOT...LOC 2211Z 304DEG 17KT 4186 10477 $$ FINCH
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 6, 6:01 PM MDT | Special Weather Statement | CYS | Albany | 44 min |
| Jun 6, 6:17 PM MDT | Severe Thunderstorm Warning | CYS | Laramie | 58 min |
| Jun 6, 6:49 PM MDT | Special Weather Statement | CYS | Platte | 56 min |
| Jun 6, 6:51 PM MDT | Special Weather Statement | CYS | Laramie | 54 min |
| Jun 6, 7:48 PM MDT | Special Weather Statement | CYS | Goshen | 57 min |
| Jun 6, 7:52 PM MDT | Special Weather Statement | CYS | Laramie | 53 min |
| Jun 6, 8:53 PM MDT | Special Weather Statement | CYS | Laramie | 67 min |
| Jun 6, 8:54 PM MDT | Special Weather Statement | CYS | Goshen | 51 min |
| Jun 6, 10:45 PM MDT | Special Weather Statement | CYS | Laramie | 60 min |
| Jun 6, 10:48 PM MDT | Areal Flood Advisory | CYS | Goshen, Laramie | 3 hr |
| Jun 6, 11:25 PM MDT | Flash Flood Warning | CYS | Laramie | 2 hr |
| Jun 7, 9:45 AM MDT | Special Weather Statement | CYS | Laramie | 90 min |
| Jun 7, 11:07 AM MDT | Special Weather Statement | CYS | Albany | 53 min |
| Jun 7, 12:00 PM MDT | Flash Flood Watch | CYS | Goshen, Laramie | 9 hr |
| Jun 7, 12:11 PM MDT | Special Weather Statement | CYS | Converse | 64 min |
| Jun 7, 12:43 PM MDT | Special Weather Statement | CYS | Niobrara | 47 min |
| Jun 7, 2:10 PM MDT | Severe Thunderstorm Warning | CYS | Albany, Converse, Platte | 65 min |
| Jun 7, 2:30 PM MDT | Severe Thunderstorm Warning | CYS | Converse | 46 min |
| Jun 7, 2:49 PM MDT | Special Weather Statement | CYS | Laramie | 56 min |
| Jun 7, 2:51 PM MDT | Severe Thunderstorm Warning | CYS | Goshen, Platte | 54 min |
| Jun 7, 2:54 PM MDT | Tornado Warning | CYS | Platte | 51 min |
| Jun 7, 3:05 PM MDT | Severe Thunderstorm Warning | CYS | Laramie | 55 min |
| Jun 7, 3:22 PM MDT | Special Weather Statement | CYS | Laramie | 38 min |
| Jun 7, 3:58 PM MDT | Special Weather Statement | CYS | Laramie | 47 min |
| Jun 7, 4:00 PM MDT | Special Weather Statement | CYS | Laramie | 45 min |
| Jun 7, 4:15 PM MDT | Severe Thunderstorm Warning | CYS | Goshen, Laramie | 45 min |
| Jun 7, 4:22 PM MDT | Severe Thunderstorm Warning | CYS | Laramie | 38 min |
| Jun 7, 4:29 PM MDT | Tornado Warning | CYS | Laramie | 46 min |
| Jun 7, 4:29 PM MDT | Tornado Warning | CYS | Goshen, Platte | 31 min |
| Jun 7, 4:52 PM MDT | Severe Thunderstorm Warning | CYS | Goshen, Laramie, Platte | 53 min |
| Jun 7, 4:59 PM MDT | Severe Thunderstorm Warning | CYS | Laramie | 61 min |
| Jun 7, 5:16 PM MDT | Tornado Warning | CYS | Laramie | 44 min |
| Jun 7, 5:23 PM MDT | Flash Flood Warning | CYS | Laramie | 2 hr |
| Jun 7, 5:29 PM MDT | Flash Flood Warning | CYS | Laramie, Platte | 2 hr |
| Jun 7, 5:52 PM MDT | Tornado Warning | CYS | Laramie | 38 min |
| Jun 7, 5:57 PM MDT | Severe Thunderstorm Warning | CYS | Laramie | 63 min |
Nearby
Tornado Warnings in Wyoming, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.