Alert archive / Wyoming / Winter Storm Warnings in 2024

Winter Storm Warning 11, NWS Cheyenne, WY

March 6, 2024Albany County, Laramie County, Wyoming

NWS Cheyenne, WY issued this winter storm warning at Mar 6, 2024, 1:10 PM MST for Albany County, Laramie County, Wyoming. It took effect at Mar 7, 2024, 8:00 AM MST. It was in force for 27 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
Mar 6, 2024, 1:10 PM MST (20:10 UTC)
In effect from
Mar 7, 2024, 8:00 AM MST
Expired
Mar 8, 2024, 10:53 AM MST
In force
27 hr
Issued by
NWS Cheyenne, WY

Counties Albany County, WY, Laramie County, WY

The radar

The Cheyenne radar (KCYS), 50 km from the middle of the area, began a volume at 20:11 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

Grand Junction, CO (KGJT), launched 12:00Z, 8.2 hours before the alert went out and 382 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, Grand Junction, CO at 12:00Z on 2024-03-06Temperature 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, Grand Junction, CO at 12:00Z on 2024-03-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 28 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
1577 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
28 m²/s²
0-3 km storm-relative helicity
87 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 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 Mar 6, 10:55 AM MST, 2 hours 15 minutes earlier.

Area forecast discussion, Mar 6, 10:55 AM MST, 2 hours 15 minutes before
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Hazardous weather outlook, Mar 6, 4:24 AM MST, 8 hours 46 minutes before
Hazardous Weather Outlook
National Weather Service Cheyenne WY
424 AM MST Wed Mar 6 2024

WYZ106-116>118-071130-
Central Laramie Range and Southwest Platte County-
South Laramie Range-South Laramie Range Foothills-
Central Laramie County-
424 AM MST Wed Mar 6 2024

This hazardous weather outlook is for portions of southeast
Wyoming.

.DAY ONE...TODAY AND TONIGHT

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

Snow returns to the south Laramie Range and adjacent lower
elevations Thursday and Friday. Significant snow accumulations
are possible for the Interstate 80 Summit...adjacent eastern
foothills and central Laramie County to include the city of
Cheyenne. A Winter Storm Watch has been posted for the Summit
where 6 to 9 inches of snow could fall. Eastern foothills into
Cheyenne may see 2 to 5 inches of new snowfall. This will lead to
hazardous driving conditions Thursday evening into Friday
afternoon.

.Spotter information statement...

Spotter activation will not be needed.

WYZ101>105-107>111-113-115-119-071130-
Converse County Lower Elevations-Niobrara County-
North Laramie Range-Ferris/Seminoe/Shirley Mountains-
Shirley Basin-East Platte County-Goshen County-
Central Carbon County-North Snowy Range Foothills-
Southwest Carbon County-Upper North Platte River Basin-
Laramie Valley-East Laramie County-
424 AM MST Wed Mar 6 2024

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

.DAY ONE...TODAY AND TONIGHT

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

The probability for widespread hazardous weather is low.

.Spotter information statement...

Spotter activation will not be needed.

WYZ112-114-071130-
Sierra Madre Range-Snowy Range-
424 AM MST Wed Mar 6 2024

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

.DAY ONE...TODAY AND TONIGHT

Snow continues for the Snowy and Sierra Madre Ranges today.
Accumulations of 3 to 4 inches are possible.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

SNow returns to the Snowy Range Thursday and Friday where 6 to 10
inches of snow is possible. This will lead to hazardous winter
weather for hikers and snowmobilers.

.Spotter information statement...

Spotter activation will not be needed.

NEZ002-003-019>021-054-055-095-096-071130-
Dawes County-Box Butte County-Scotts Bluff County-Banner County-
Morrill County-Kimball County-Cheyenne County-
Northern Sioux County-Southern Sioux County-
424 AM MST Wed Mar 6 2024

This hazardous weather outlook is for portions of panhandle
Nebraska.

.DAY ONE...TODAY AND TONIGHT

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

Areas of fog are possible Thursday morning across the Nebraska
Panhandle as upslope northeast winds develop. This may lead to
hazardous travel conditions for drivers due to very low
visibility. Some freezing drizzle is possible Thursday morning
before turning over to light snow. This southern half of the
Nebraska Panhandle may see 1-2 inches of new snowfall through
Friday.

.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
Mar 6, 1:20 AM MSTWinter Storm WatchCYSAlbany, Laramie12 hr
Mar 6, 1:10 PM MSTWinter Weather AdvisoryCYSAlbany, Carbon, Laramie, Platte46 hr

Nearby

Winter Storm Warnings in Wyoming, 2024Every winter storm 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.