Alert archive / Idaho / Wind Advisories in 2025

Wind Advisory 18, NWS Pocatello, ID

December 18, 20258 counties in Idaho

NWS Pocatello, ID issued this wind advisory at Dec 18, 2025, 12:21 PM MST for 8 counties in Idaho. It took effect at Dec 19, 2025, 8:00 AM MST. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued: Dec 18, 2025, 12:21 PM MST (19:21 UTC)
In effect from: Dec 19, 2025, 8:00 AM MST
Expired: Dec 19, 2025, 8:00 PM MST
In force: 12 hr
Issued by: NWS Pocatello, ID

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

The radar

The Pocatello radar (KSFX), 53 km from the middle of the area, began a volume at 19:23 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, 7.4 hours before the alert went out and 311 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2446 m above ground
0-6 km bulk shear: 107 kt
0-1 km storm-relative helicity: -31 m²/s²
0-3 km storm-relative helicity: 127 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 wind advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Pocatello, ID wrote its last area forecast discussion before this wind advisory went out at Dec 18, 10:35 AM MST, 1 hour 46 minutes earlier.

Area forecast discussion, Dec 18, 10:35 AM MST, 1 hour 46 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 17, 7:37 PM MST	Winter Weather Advisory	PIH	Bear Lake, Bonneville, Caribou, Clark, Franklin, Fremont and 2 more	54 hr

Nearby

Wind Advisories in Idaho, 2025 Every wind advisory in 2025

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.