Alert archive / Wyoming / Snow Squall Warnings in 2024

Snow Squall Warning 18, NWS Cheyenne, WY

November 16, 2024Albany County, Carbon County, Wyoming

NWS Cheyenne, WY issued this snow squall warning at Nov 16, 2024, 11:44 AM MST for Albany County, Carbon County, Wyoming. It was in force for 31 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Nov 16, 2024, 11:44 AM MST (18:44 UTC)
Expired
Nov 16, 2024, 12:15 PM MST
In force
31 min
Issued by
NWS Cheyenne, WY
Area
Storm-based polygon

Counties Albany County, WY, Carbon County, WY

The radar

The Cheyenne radar (KCYS), 140 km from the middle of the area, began a volume at 18:44 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, 6.7 hours before the alert went out and 230 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, Riverton, WY at 12:00Z on 2024-11-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Riverton, WY at 12:00Z on 2024-11-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 43 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1037 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
43 m²/s²
0-3 km storm-relative helicity
85 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 snow squall 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 snow squall warning went out at Nov 16, 10:49 AM MST, 55 minutes earlier.

Area forecast discussion, Nov 16, 10:49 AM MST, 55 minutes before
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Hazardous weather outlook, Nov 15, 1:33 PM MST, 22 hours 11 minutes before
Hazardous Weather Outlook
National Weather Service Cheyenne WY
133 PM MST Fri Nov 15 2024

NEZ002-003-019>021-054-055-095-096-WYZ101>119-162045-
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-Central Laramie Range and Southwest Platte County-
East Platte County-Goshen County-Central Carbon County-
North Snowy Range Foothills-Southwest Carbon County-
Sierra Madre Range-Upper North Platte River Basin-Snowy Range-
Laramie Valley-South Laramie Range-South Laramie Range Foothills-
Central Laramie County-East Laramie County-
133 PM MST Fri Nov 15 2024

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...SATURDAY THROUGH THURSDAY

The probability for widespread hazardous weather is low.

.Spotter information statement...

Spotter activation will not be needed.

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 16, 1:54 AM MSTHigh Wind WatchCYSAlbany, Carbon, Laramie, Platte8 hr
Nov 16, 9:32 AM MSTHigh Wind WarningCYSAlbany, Carbon, Laramie, Platte29 hr
Nov 16, 9:48 AM MSTSnow Squall WarningCYSCarbon27 min
Nov 16, 10:14 AM MSTSnow Squall WarningCYSCarbon31 min
Nov 16, 10:44 AM MSTSnow Squall WarningCYSAlbany, Carbon31 min
Nov 16, 11:15 AM MSTSnow Squall WarningCYSAlbany, Carbon30 min
Nov 16, 1:20 PM MSTSnow Squall WarningCYSCarbon25 min
Nov 16, 1:44 PM MSTSnow Squall WarningCYSCarbon31 min
Nov 16, 2:23 PM MSTSpecial Weather StatementCYSLaramie52 min

Nearby

Snow Squall Warnings in Wyoming, 2024Every snow squall warning in 2024

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.