Alert archive / Wyoming / Tornado Warnings in 2007
Tornado Warning 3, NWS Cheyenne, WY
NWS Cheyenne, WY issued this tornado warning at May 17, 2007, 3:32 PM MDT for Platte County, Wyoming. It was in force for 28 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 17, 2007, 3:32 PM MDT (21:32 UTC)
- Expired
- May 17, 2007, 4:00 PM MDT
- In force
- 28 min
- Issued by
- NWS Cheyenne, WY
- Area
- Counties, with a storm outline in the text
County Platte County, WY
The radar
The Cheyenne radar (KCYS), 125 km from the middle of the area, began a volume at 21:33 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.
The nearest sounding before it
Rapid City, SD (KUNR), launched 12:00Z, 9.5 hours before the alert went out and 261 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
- 1061 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 254 m²/s²
- 0-3 km storm-relative helicity
- 319 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS55 KCYS 172132 TORCYS WYC031-172200- /O.NEW.KCYS.TO.W.0003.070517T2132Z-070517T2200Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE CHEYENNE WY 332 PM MDT THU MAY 17 2007 THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A * TORNADO WARNING FOR... CENTRAL PLATTE COUNTY IN SOUTHEAST WYOMING... * UNTIL 400 PM MDT * AT 329 PM MDT...LOCAL LAW ENFORCEMENT REPORTED A TORNADO 17 MILES WEST OF GUERNSEY...OR ABOUT 16 MILES NORTH OF WHEATLAND...MOVING SOUTHEAST AT 5 MPH. MOVE INTO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. ABANDON MOBILE HOMES AND VEHICLES. REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE OFFICE IN CHEYENNE AT 1-800-269-6220. LAT...LON 4238 10510 4210 10517 4210 10466 4240 10468 $$ JR
2 follow-up statements
000 WWUS55 KCYS 172145 SVSCYS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 344 PM MDT THU MAY 17 2007 WYC031-172200- /O.CON.KCYS.TO.W.0003.000000T0000Z-070517T2200Z/ PLATTE WY- 344 PM MDT THU MAY 17 2007 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 400 PM MDT FOR CENTRAL PLATTE COUNTY... AT 341 PM MDT...DOPPLER RADAR CONTINUED TO SHOW A STORM WITH A HISTORY OF PRODUCING A TORNADO. THIS STORM WAS LOCATED ABOUT 15 MILES NORTH OF WHEATLAND...MOVING SOUTHEAST AT 5 MPH. THE TORNADO WILL BE NEAR... I-25 MM 87 BY 400 PM MDT... MOVE INTO A BASEMENT OR INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. ABANDON MOBILE HOMES AND VEHICLES. REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE OFFICE IN CHEYENNE AT 1-800-269-6220. LAT...LON 4238 10510 4210 10517 4210 10466 4240 10468 $$ JR
000 WWUS55 KCYS 172200 SVSCYS SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE CHEYENNE WY 400 PM MDT THU MAY 17 2007 WYC031-172210- /O.EXP.KCYS.TO.W.0003.000000T0000Z-070517T2200Z/ PLATTE WY- 400 PM MDT THU MAY 17 2007 ...THE TORNADO WARNING FOR CENTRAL PLATTE COUNTY EXPIRES AT 400 PM MDT... THE STORM HAS DECREASED IN INTENSITY AND IS NO LONGER SEVERE. THEREFORE...THE WARNING HAS BEEN ALLOWED TO EXPIRE. REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE OFFICE IN CHEYENNE AT 1-800-269-6220. LAT...LON 4238 10510 4210 10517 4210 10466 4240 10468 $$ JR
Nearby
Tornado Warnings in Wyoming, 2007Every tornado warning in 2007Tornadoes in 2007
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.