Alert archive / Montana / Wind Chill Advisories in 2018

Wind Chill Advisory 3, NWS Billings, MT

January 14, 20185 counties in Montana

NWS Billings, MT issued this wind chill advisory at Jan 14, 2018, 2:26 AM MST for 5 counties in Montana. It took effect at Jan 15, 2018, 12:00 AM MST. It was in force for 35 hr.

The area

The counties it named.

The facts

Issued
Jan 14, 2018, 2:26 AM MST (09:26 UTC)
In effect from
Jan 15, 2018, 12:00 AM MST
Expired
Jan 16, 2018, 11:00 AM MST
In force
35 hr
Issued by
NWS Billings, MT

Counties Carter County, MT, Custer County, MT, Fallon County, MT, Powder River County, MT, Rosebud County, MT

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 9.4 hours before the alert went out and 370 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, Bismarck Municip, ND at 00:00Z on 2018-01-14Temperature 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 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Bismarck Municip, ND at 00:00Z on 2018-01-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 220 square meters per square second.19395878Sfc1 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
672 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
220 m²/s²
0-3 km storm-relative helicity
326 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

Everything else NWS Billings, MT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 14, 2:23 AM MSTWinter Weather AdvisoryBYZCarbon, Park, Rosebud24 hr
Jan 14, 1:11 PM MSTSpecial Weather StatementBYZCarter, Custer, Fallon, Powder River, Rosebud19 min
Jan 14, 1:15 PM MSTSpecial Weather StatementBYZCarter, Custer, Fallon, Powder River, Rosebud15 min
Jan 14, 1:54 PM MSTSpecial Weather StatementBYZCuster, Musselshell, Powder River, Rosebud, Treasure, Yellowstone81 min
Jan 14, 3:29 PM MSTSpecial Weather StatementBYZBig Horn, Golden Valley, Musselshell, Treasure, Yellowstone106 min

Nearby

Wind Chill Advisories in Montana, 2018Every wind chill advisory in 2018

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.