Alert archive / Wyoming / Wind Chill Advisories in 2019
Wind Chill Advisory 1, NWS Cheyenne, WY
NWS Cheyenne, WY issued this wind chill advisory at Jan 1, 2019, 4:50 AM MST for 5 counties in Wyoming. It took effect at Jan 1, 2019, 5:43 PM MST. It was in force for 14 hr.
The area
The counties it named.
The facts
- Issued
- Jan 1, 2019, 4:50 AM MST (11:50 UTC)
- In effect from
- Jan 1, 2019, 5:43 PM MST
- Expired
- Jan 2, 2019, 8:00 AM MST
- In force
- 14 hr
- Issued by
- NWS Cheyenne, WY
Counties Albany County, WY, Carbon County, WY, Converse County, WY, Laramie County, WY, Platte County, WY
The radar
The Cheyenne radar (KCYS), 109 km from the middle of the area, began a volume at 11:52 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
Denver, CO (KDEN), launched 00:00Z, 11.8 hours before the alert went out and 303 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
- 722 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- -48 m²/s²
- 0-3 km storm-relative helicity
- 354 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this wind chill advisory 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 wind chill advisory went out at Jan 1, 2:41 AM MST, 2 hours 9 minutes earlier.
Area forecast discussion, Jan 1, 2:41 AM MST, 2 hours 9 minutes before
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</html>Hazardous weather outlook, Dec 31, 2:00 PM MST, 14 hours 50 minutes before
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</html>Nearby
Wind Chill Advisories in Wyoming, 2019Every wind chill advisory in 2019
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.