Alert archive / Wyoming / Tornado Warnings in 2018
Tornado Warning 12, NWS Cheyenne, WY
NWS Cheyenne, WY issued this tornado warning at Jun 6, 2018, 5:43 PM MDT for Albany County, Wyoming. It was in force for 32 min. 3 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 6, 2018, 5:43 PM MDT (23:43 UTC)
- Expired
- Jun 6, 2018, 6:15 PM MDT
- In force
- 32 min
- Issued by
- NWS Cheyenne, WY
- Area
- Storm-based polygon
- Tornado
- Observed
- Hail
- 1.25 in
County Albany County, WY
The radar
The Cheyenne radar (KCYS), 76 km from the middle of the area, began a volume at 23:45 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 6, 5:45 PM MDT | TORNADO | 8 N Laramie, WY | CONFIRMED TORNADO CAUSED DAMAGE TO STRUCTURES NORTH OF LARAMIE AROUND 545 PM MDT. MORE DETAILS WILL BE PROVIDED ONCE A DAMAGE SURVEY IS COMPLETED ON THURSDAY. |
| Jun 6, 6:07 PM MDT | TORNADO | 11 Nne Laramie, WY | CORRECTED RECEIVED PHOTO VIA FACEBOOK OF MAIN TORNADO WITH ADJOINING TORNADO PRESENT. |
| Jun 6, 6:07 PM MDT | TORNADO | 11 Nne Laramie, WY | RECEIVED PHOTO VIA FACEBOOK OF MAIN TORNADO WITH ADJOINING MULTIVORTEX TORNADO PRESENT. |
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 6, 4:46 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Denver, CO (KDEN), launched 12:00Z, 11.7 hours before the alert went out and 267 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
- 3735 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- -16 m²/s²
- 0-3 km storm-relative helicity
- -23 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
650
WFUS55 KCYS 062343
TORCYS
WYC001-070015-
/O.NEW.KCYS.TO.W.0012.180606T2343Z-180607T0015Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Cheyenne WY
543 PM MDT WED JUN 6 2018
The National Weather Service in Cheyenne has issued a
* Tornado Warning for...
Southeastern Albany County in southeastern Wyoming...
* Until 615 PM MDT
* At 543 PM MDT, a confirmed tornado was located 9 miles south of
Bosler, or 10 miles north of Laramie, moving southeast at 10 mph.
HAZARD...Damaging tornado and half dollar size hail.
SOURCE...Weather spotters 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.
* The tornado will be near...
Laramie and University Of Wyoming War Memorial Stadium around 615
PM MDT.
This includes Interstate 80 in Wyoming between mile markers 304 and
315.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
&&
LAT...LON 4144 10580 4156 10562 4141 10537 4123 10564
TIME...MOT...LOC 2343Z 318DEG 8KT 4145 10565
TORNADO...OBSERVED
HAIL...1.25IN
$$
**AB**1 follow-up statement
986
WWUS55 KCYS 062358
SVSCYS
Severe Weather Statement
National Weather Service Cheyenne WY
558 PM MDT WED JUN 6 2018
WYC001-070015-
/O.CON.KCYS.TO.W.0012.000000T0000Z-180607T0015Z/
Albany WY-
558 PM MDT WED JUN 6 2018
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 615 PM MDT FOR
SOUTHEASTERN ALBANY COUNTY...
At 558 PM MDT, a confirmed tornado was located 7 miles southwest of
Baldy Peak, or 9 miles north of Laramie, moving southeast at 10 mph.
HAZARD...Damaging tornado and half dollar size hail.
SOURCE...Emergency management confirmed tornado.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This tornado will be near...
Laramie around 615 PM MDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
&&
LAT...LON 4144 10580 4156 10562 4141 10537 4131 10552
TIME...MOT...LOC 2358Z 299DEG 8KT 4145 10558
TORNADO...OBSERVED
HAIL...1.25IN
$$
**AB**The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 6, 3:20 PM MDT | Special Weather Statement | CYS | 40 min | |
| Jun 6, 4:19 PM MDT | Special Weather Statement | CYS | Albany | 41 min |
| Jun 6, 4:36 PM MDT | Severe Thunderstorm Warning | CYS | Albany, Carbon | 39 min |
| Jun 6, 4:56 PM MDT | Special Weather Statement | CYS | Albany | 34 min |
| Jun 6, 5:01 PM MDT | Severe Thunderstorm Warning | CYS | Albany, Carbon | 44 min |
| Jun 6, 5:38 PM MDT | Special Weather Statement | CYS | Albany | 37 min |
Nearby
Tornado Warnings in Wyoming, 2018Every tornado warning in 2018Tornadoes in 2018
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.