Alert archive / Wyoming / Winter Storm Watches in 2012
Winter Storm Watch 5, NWS Cheyenne, WY
NWS Cheyenne, WY issued this winter storm watch at Oct 4, 2012, 1:47 PM MDT for 4 counties in Wyoming. It took effect at Oct 5, 2012, 6:00 PM MDT. It was in force for .
The area
The counties it named.
The facts
- Issued
- Oct 4, 2012, 1:47 PM MDT (19:47 UTC)
- In effect from
- Oct 5, 2012, 6:00 PM MDT
- Expired
- Oct 5, 2012, 9:21 AM MDT
- In force
- Issued by
- NWS Cheyenne, WY
Counties Albany County, WY, Converse County, WY, Laramie County, WY, Platte County, WY
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 7.8 hours before the alert went out and 291 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
- 970 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 458 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this winter storm watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Cheyenne, WY wrote its last area forecast discussion before this winter storm watch went out at Oct 3, 4:21 PM MDT, 21 hours 26 minutes earlier.
Area forecast discussion, Oct 3, 4:21 PM MDT, 21 hours 26 minutes before
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</html>The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 4, 1:47 PM MDT | Winter Weather Advisory | CYS | Niobrara | 23 hr |
Nearby
Winter Storm Watches in Wyoming, 2012Every winter storm watch 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; the sounding from the Mesonet's radiosonde archive.