Alert archive / Idaho / Snow Squall Warnings in 2022

Snow Squall Warning 2, NWS Pocatello, ID

November 9, 20227 counties in Idaho

NWS Pocatello, ID issued this snow squall warning at Nov 9, 2022, 7:28 AM MST for 7 counties in Idaho. It was in force for 62 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 9, 2022, 7:28 AM MST (14:28 UTC)
Expired
Nov 9, 2022, 8:30 AM MST
In force
62 min
Issued by
NWS Pocatello, ID
Area
Storm-based polygon
Damage threat
Significant

Counties Bannock County, ID, Bingham County, ID, Bonneville County, ID, Fremont County, ID, Jefferson County, ID, Madison County, ID, Power County, ID

The radar

The Pocatello radar (KSFX), 59 km from the middle of the area, began a volume at 14:28 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

Salt Lake City I, UT (KSLC), launched 12:00Z, 2.5 hours before the alert went out and 292 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, Salt Lake City I, UT at 12:00Z on 2022-11-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 joules per kilogram.LCLLFCEL10008507005003002001001 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, Salt Lake City I, UT at 12:00Z on 2022-11-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 110 square meters per square second.1939587897117136156Sfc1 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
3 J/kg
Mixed-layer CIN
-24 J/kg
Mixed-layer LCL
921 m above ground
0-6 km bulk shear
77 kt
0-1 km storm-relative helicity
110 m²/s²
0-3 km storm-relative helicity
89 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The office that day

Everything else NWS Pocatello, ID issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 9, 6:55 AM MSTSpecial Weather StatementPIHBingham, Power2 hr
Nov 9, 4:10 PM MSTSpecial Weather StatementPIHBingham, Bonneville, Cassia, Minidoka, Power, Teton50 min

Nearby

Snow Squall Warnings in Idaho, 2022Every snow squall 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.