Alert archive / Wyoming / Snow Squall Warnings in 2020
Snow Squall Warning 1, NWS Cheyenne, WY
NWS Cheyenne, WY issued this snow squall warning at Jan 14, 2020, 4:11 PM MST for Carbon County, Wyoming. It was in force for 49 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
- Jan 14, 2020, 4:11 PM MST (23:11 UTC)
- Expired
- Jan 14, 2020, 5:00 PM MST
- In force
- 49 min
- Issued by
- NWS Cheyenne, WY
- Area
- Storm-based polygon
County Carbon County, WY
The radar
The Cheyenne radar (KCYS), 187 km from the middle of the area, began a volume at 23:13 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, 11.2 hours before the alert went out and 195 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
- 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
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 Jan 14, 3:33 PM MST, 38 minutes earlier.
Area forecast discussion, Jan 14, 3:33 PM MST, 38 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Hazardous weather outlook, Jan 14, 2:25 PM MST, 1 hour 46 minutes before
Hazardous Weather Outlook National Weather Service Cheyenne WY 225 PM MST Tue Jan 14 2020 WYZ101-103>105-107-109>115-118-119-152130- Converse County Lower Elevations-North Laramie Range- Ferris/Seminoe/Shirley Mountains-Shirley Basin-East Platte County- Central Carbon County-North Snowy Range Foothills- Southwest Carbon County-Sierra Madre Range- Upper North Platte River Basin-Snowy Range-Laramie Valley- Central Laramie County-East Laramie County- 225 PM MST Tue Jan 14 2020 This hazardous weather outlook is for portions of south central Wyoming and southeast Wyoming. .DAY ONE...THIS AFTERNOON AND TONIGHT Occasional gusty west to southwest winds are expected today and tonight with gusts of 40 to 50 mph possible. Patchy blowing and drifting snow is also possible west of the Laramie Range. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY The next Pacific storm system will impact the weather on Friday, bringing another round of strong winds and some snowfall to the area. .Spotter information statement... Spotter activation will not be needed. WYZ106-116-117-152130- Central Laramie Range and Southwest Platte County- South Laramie Range-South Laramie Range Foothills- 225 PM MST Tue Jan 14 2020 This hazardous weather outlook is for portions of southeast Wyoming. .DAY ONE...THIS AFTERNOON AND TONIGHT Another round of strong winds are possible tonight through Wednesday afternoon as another Pacific disturbance and cold front move across the area. A High Wind Watch is in effect beginning late this evening and continuing through early Wednesday afternoon for gusts around 60 mph. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY The next Pacific storm system will impact the weather on Friday, bringing another round of strong winds and some snowfall to the area. .Spotter information statement... Spotter activation will not be needed. NEZ002-003-019>021-054-055-095-096-WYZ102-108-152130- Dawes-Box Butte-Scotts Bluff-Banner-Morrill-Kimball-Cheyenne- North Sioux-South Sioux-Niobrara County-Goshen County- 225 PM MST Tue Jan 14 2020 This hazardous weather outlook is for portions of western Nebraska...east central Wyoming and southeast Wyoming. .DAY ONE...THIS AFTERNOON AND TONIGHT No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY The probability for widespread hazardous weather is low. .Spotter information statement... Spotter activation will not be needed.
In the hours before
Local storm report, Jan 14, 1:04 PM MST, 3 hours 7 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.
&&
WMSpecial weather statement, Jan 14, 2:16 PM MST, 1 hour 55 minutes before
Special Weather Statement National Weather Service Cheyenne WY 216 PM MST Tue Jan 14 2020 WYZ110-150600- North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 216 PM MST Tue Jan 14 2020 ...STRONG GUSTY WINDS EXPECTED THIS AFTERNOON WITH SNOW AND BLOWING SNOW THIS EVENING INTO TONIGHT... Winds this afternoon will occasionally gust around 50 mph ahead of the next cold front. A band of snow will then move across Carbon and Albany county after 500 PM MST late this afternoon into late this evening. Although snow accumulations will generally be between 1 to 2 inches, considerable drifting and blowing snow is expected as winds gust as high as 55 mph. Visibilities will likely drop down to one half mile at times tonight and into early Wednesday morning. Those traveling along Interstate 80 between Cheyenne and Rawlins should be prepared for locally heavy snow showers and reduced visibilities. Those traveling in light or high profile vehicles are urged to use caution as westerly winds may gust around 55 mph at times, resulting in travel difficulties.
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 14, 1:42 PM MST | High Wind Watch | CYS | Albany, Laramie, Platte | 8 hr |
| Jan 14, 4:58 PM MST | Snow Squall Warning | CYS | Carbon | 32 min |
Nearby
Snow Squall Warnings in Wyoming, 2020Every snow squall warning 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.