Alert archive / Wyoming / Winter Storm Warnings in 2022

Winter Storm Warning 8, NWS Cheyenne, WY

May 19, 2022Albany County, Carbon County, Laramie County, Wyoming

NWS Cheyenne, WY issued this winter storm warning at May 19, 2022, 2:56 AM MDT for Albany County, Carbon County, Laramie County, Wyoming. It took effect at May 19, 2022, 9:00 PM MDT. It was in force for 24 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 19, 2022, 2:56 AM MDT (08:56 UTC)
In effect from
May 19, 2022, 9:00 PM MDT
Expired
May 20, 2022, 8:40 PM MDT
In force
24 hr
Issued by
NWS Cheyenne, WY

Counties Albany County, WY, Carbon County, WY, Laramie County, WY

The radar

The Cheyenne radar (KCYS), 93 km from the middle of the area, began a volume at 08:58 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 (KDNR), launched 00:00Z, 8.9 hours before the alert went out and 285 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-pSkew-T log-p diagram, Denver, CO at 00:00Z on 2022-05-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 139 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 00:00Z on 2022-05-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -28 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
139 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
3220 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
-28 m²/s²
0-3 km storm-relative helicity
17 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.3

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this winter storm warning 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 warning went out at May 18, 11:28 PM MDT, 3 hours 28 minutes earlier.

Area forecast discussion, May 18, 11:28 PM MDT, 3 hours 28 minutes before
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Hazardous weather outlook, May 18, 2:49 PM MDT, 12 hours 7 minutes before
Hazardous Weather Outlook
National Weather Service Cheyenne WY
249 PM MDT Wed May 18 2022

NEZ002-003-019>021-054-055-095-096-WYZ101>105-107>109-111-113-115-
118-119-192100-
Dawes County-Box Butte County-Scotts Bluff County-Banner County-
Morrill County-Kimball County-Cheyenne County-
Northern Sioux County-Southern Sioux County-
Converse County Lower Elevations-Niobrara County-
North Laramie Range-Ferris/Seminoe/Shirley Mountains-
Shirley Basin-East Platte County-Goshen County-
Central Carbon County-Southwest Carbon County-
Upper North Platte River Basin-Laramie Valley-
Central Laramie County-East Laramie County-
249 PM MDT Wed May 18 2022

This hazardous weather outlook is for portions of panhandle
Nebraska...east central Wyoming...south central Wyoming and
southeast Wyoming.

.DAY ONE...THIS AFTERNOON AND TONIGHT

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

Strong and gusty winds are expected during the day Thursday ahead
of an approaching cold front. Rain will likely transition to snow
for most places Thursday night. Accumulating snow is possible
Thursday night through early Saturday morning. Much cooler
temperatures are expected Friday and Saturday.

.Spotter information statement...

Spotter activation is not needed at this time.

WYZ106-110-116-117-192100-
Central Laramie Range and Southwest Platte County-
North Snowy Range Foothills-South Laramie Range-
South Laramie Range Foothills-
249 PM MDT Wed May 18 2022

This hazardous weather outlook is for portions of south central
Wyoming and southeast Wyoming.

.DAY ONE...THIS AFTERNOON AND TONIGHT

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

High winds are likely early Thursday morning through the afternoon
hours. Winds could gust up to 60 mph. Please refer to the High
Wind Warnings for more details. Rain will transition to snow Thursday
night. Accumulating snow is possible Thursday night through early
Saturday morning. Please refer to the Winter Storm Watches for
more details. Much cooler temperatures are expected Friday and
Saturday.

.Spotter information statement...

Spotter activation is not needed at this time.

WYZ112-114-192100-
Sierra Madre Range-Snowy Range-
249 PM MDT Wed May 18 2022

This hazardous weather outlook is for portions of south central
Wyoming.

.DAY ONE...THIS AFTERNOON AND TONIGHT

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

Strong and gusty winds are expected during the day Thursday ahead
of an approaching cold front. Accumulating snow is likely Thursday
night through early Saturday morning. Snow accumulations of 6 to
12 inches is possible. Please refer to the Winter Storm Watches
and Winter Weather Advisory for more details. Much cooler
temperatures are expected Friday and Saturday.

.Spotter information statement...

Spotter activation is not needed at this time.

The office that day

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

IssuedProductOfficeCountiesLasted
May 19, 2:56 AM MDTWinter Storm WatchCYSLaramie12 hr
May 19, 3:04 AM MDTHard Freeze WatchCYSAlbany, Carbon, Converse, Goshen, Laramie, Niobrara and 1 more23 hr

Nearby

Winter Storm Warnings in Wyoming, 2022Every winter storm warning in 2022

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.