Alert archive / Wyoming / High Wind Watches in 2020

High Wind Watch 6, NWS Cheyenne, WY

January 14, 2020Albany County, Laramie County, Platte County, Wyoming

NWS Cheyenne, WY issued this high wind watch at Jan 14, 2020, 1:42 PM MST for Albany County, Laramie County, Platte County, Wyoming. It took effect at Jan 14, 2020, 9:00 PM MST. It was in force for 28 min.

The area

The counties it named.

The facts

Issued: Jan 14, 2020, 1:42 PM MST (20:42 UTC)
In effect from: Jan 14, 2020, 9:00 PM MST
Expired: Jan 14, 2020, 9:28 PM MST
In force: 28 min
Issued by: NWS Cheyenne, WY

Counties Albany County, WY, Laramie County, WY, Platte County, WY

The radar

The Cheyenne radar (KCYS), 66 km from the middle of the area, began a volume at 20:39 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

Riverton, WY (KRIW), launched 12:00Z, 8.7 hours before the alert went out and 309 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1661 m above ground
0-6 km bulk shear: 79 kt
0-1 km storm-relative helicity: 324 m²/s²
0-3 km storm-relative helicity: 375 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this high wind 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 high wind watch went out at Jan 14, 10:30 AM MST, 3 hours 12 minutes earlier.

Area forecast discussion, Jan 14, 10:30 AM MST, 3 hours 12 minutes before

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Hazardous weather outlook, Jan 14, 8:59 AM MST, 4 hours 43 minutes before

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In the hours before

Local storm report, Jan 14, 1:04 PM MST, 38 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
104 PM MST TUE JAN 14 2020

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0730 AM     SNOW             3 N SARATOGA            41.50N 106.80W
01/14/2020  M0.5 INCH        CARBON             WY   CO-OP OBSERVER

            CO-OP OBSERVER STATION SFHW4 3.4 N SARATOGA.

0715 AM     SNOW             6 NE ARLINGTON          41.66N 106.13W
01/14/2020  M0.5 INCH        CARBON             WY   COCORAHS

            COCORAHS STATION WY-CR-5 ROCK RIVER 9.6 WSW.

&&

WM

The office that day

Everything else NWS Cheyenne, WY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 14, 4:11 PM MST	Snow Squall Warning	CYS	Carbon	49 min
Jan 14, 4:58 PM MST	Snow Squall Warning	CYS	Carbon	32 min

Nearby

High Wind Watches in Wyoming, 2020 Every high wind watch in 2020

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.