Alert archive / Wyoming / Tornado Warnings in 2005
Tornado Warning 12, NWS Cheyenne, WY
NWS Cheyenne, WY issued this tornado warning at Aug 12, 2005, 6:32 PM MDT for Converse County, Wyoming. It was in force for 31 min. 1 report 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
- Aug 12, 2005, 6:32 PM MDT (00:32 UTC)
- Expired
- Aug 12, 2005, 7:03 PM MDT
- In force
- 31 min
- Issued by
- NWS Cheyenne, WY
- Area
- Counties, with a storm outline in the text
County Converse County, WY
The radar
The Cheyenne radar (KCYS), 216 km from the middle of the area, began a volume at 00:33 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 |
|---|---|---|---|
| Aug 12, 7:05 PM MDT | TORNADO | 13 N Douglas, 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 |
|---|---|---|---|
| Aug 12, 4:05 PM MDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Riverton, WY (KRIW), launched 00:00Z, 0.5 hours before the alert went out and 235 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
- 805 J/kg
- Mixed-layer CIN
- -127 J/kg
- Mixed-layer LCL
- 2294 m above ground
- 0-6 km bulk shear
- 72 kt
- 0-1 km storm-relative helicity
- 157 m²/s²
- 0-3 km storm-relative helicity
- 226 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS55 KCYS 130032 TORCYS WYC009-130100- /O.NEW.KCYS.TO.W.0012.050813T0032Z-050813T0100Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE CHEYENNE WY 632 PM MDT FRI AUG 12 2005 THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A * TORNADO WARNING FOR... CENTRAL CONVERSE COUNTY IN EAST CENTRAL WYOMING * UNTIL 700 PM MDT * AT 623 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO 11 MILES WEST OF RED ROCK SPRING...OR ABOUT 23 MILES NORTHWEST OF DOUGLAS...MOVING EAST AT 20 MPH. * THE TORNADO IS EXPECTED TO BE NEAR... RED ROCK SPRING BY 655 PM MDT THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS. IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM MDT FRIDAY EVENING FOR SOUTHEASTERN WYOMING. LAT...LON 4313 10572 4295 10575 4282 10520 4309 10516 $$ SOWKO
2 follow-up statements
000 WWUS55 KCYS 130046 SVSCYS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 645 PM MDT FRI AUG 12 2005 WYC009-130100- /O.CON.KCYS.TO.W.0012.000000T0000Z-050813T0100Z/ CONVERSE WY- 645 PM MDT FRI AUG 12 2005 ...A TORNADO WARNING CONTINUES UNTIL 700 PM MDT FOR CENTRAL CONVERSE COUNTY... AT 636 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A TORNADO. THIS TORNADO WAS LOCATED 8 MILES WEST OF RED ROCK SPRING...OR ABOUT 18 MILES NORTHWEST OF DOUGLAS...MOVING EAST AT 20 MPH. LAW ENFORCEMENT IN DOUGLAS REPORTED SEEING A SERIES OF FUNNEL CLOUDS WHILE LOOKING NORTHWEST TOWARDS THE WARNING AREA. THE TORNADO WILL BE NEAR... RED ROCK SPRING BY 655 PM MDT THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS. IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM MDT FRIDAY EVENING FOR SOUTHEASTERN WYOMING. LAT...LON 4313 10572 4295 10575 4282 10520 4309 10516 $$ SOWKO
000 WWUS55 KCYS 130103 SVSCYS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 701 PM MDT FRI AUG 12 2005 WYC009-130111- /O.EXP.KCYS.TO.W.0012.000000T0000Z-050813T0100Z/ CONVERSE WY- 701 PM MDT FRI AUG 12 2005 ...THE TORNADO WARNING FOR CENTRAL CONVERSE COUNTY EXPIRED AT 700 PM MDT... THE TORNADO WARNING FOR CENTRAL CONVERSE COUNTY HAS EXPIRED AS OF 7 PM. A NEW TORNADO WARNING WARNING WILL BE ISSUED FOR EAST CENTRAL CONVERSE COUNTY. AS OF 7 PM NO REPORTS OF TORNADO TOUCHDOWNS HAVE BEEN RECIEVED... HOWEVER A NUMBER OF FUNNEL CLOUDS HAVE BEEN SIGHTED 5 TO 10 MILES TO THE NORTH AND NORTHEAST OF DOUGLAS SINCE 630 PM. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1100 PM MDT FRIDAY EVENING FOR SOUTHEASTERN WYOMING. LAT...LON 4313 10572 4295 10575 4282 10520 4309 10516 $$ WEILAND
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 6:57 PM MDT | Severe Thunderstorm Warning | CYS | Converse | 33 min |
| Aug 12, 7:02 PM MDT | Tornado Warning | CYS | Converse | 43 min |
Nearby
Tornado Warnings in Wyoming, 2005Every tornado warning in 2005Tornadoes in 2005
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.