Alert archive / Wyoming / Winter Storm Watches in 2006
Winter Storm Watch 13, NWS Cheyenne, WY
NWS Cheyenne, WY issued this winter storm watch at Dec 15, 2006, 2:35 PM MST for Crook County, Weston County, Wyoming. It took effect at Dec 16, 2006, 12:00 PM MST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Dec 15, 2006, 2:35 PM MST (21:35 UTC)
- In effect from
- Dec 16, 2006, 12:00 PM MST
- Expired
- Dec 16, 2006, 3:40 AM MST
- In force
- Issued by
- NWS Cheyenne, WY
Counties Crook County, WY, Weston County, WY
The radar
The Rapid City radar (KUDX), 139 km from the middle of the area, began a volume at 21:40 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
Bismarck Municip, ND (KBIS), launched 12:00Z, 9.6 hours before the alert went out and 414 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
- 812 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 86 m²/s²
- 0-3 km storm-relative helicity
- 220 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 Dec 15, 11:16 AM MST, 3 hours 19 minutes earlier.
Area forecast discussion, Dec 15, 11:16 AM MST, 3 hours 19 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 |
|---|---|---|---|---|
| Dec 14, 10:28 PM MST | High Wind Warning | CYS | 13 hr |
Nearby
Winter Storm Watches in Wyoming, 2006Every winter storm watch in 2006
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.