Alert archive / Nevada / Winter Weather Advisories in 2021

Winter Weather Advisory 5, NWS Reno, NV

January 25, 2021Lyon County, Mineral County, Nevada

NWS Reno, NV issued this winter weather advisory at Jan 25, 2021, 12:30 PM PST for Lyon County, Mineral County, Nevada. It took effect at Jan 27, 2021, 4:00 AM PST. It was in force for 18 hr.

The area

The counties it named.

The facts

Issued: Jan 25, 2021, 12:30 PM PST (20:30 UTC)
In effect from: Jan 27, 2021, 4:00 AM PST
Expired: Jan 27, 2021, 10:00 PM PST
In force: 18 hr
Issued by: NWS Reno, NV

Counties Lyon County, NV, Mineral County, NV

The radar

The Reno radar (KRGX), 122 km from the middle of the area, began a volume at 20:32 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

Reno, NV (KREV), launched 12:00Z, 8.5 hours before the alert went out and 103 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: 555 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 1 m²/s²
0-3 km storm-relative helicity: 12 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 weather advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Reno, NV wrote its last area forecast discussion before this winter weather advisory went out at Jan 24, 1:06 PM PST, 23 hours 24 minutes earlier.

Area forecast discussion, Jan 24, 1:06 PM PST, 23 hours 24 minutes before

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The office that day

Everything else NWS Reno, NV issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 25, 4:13 AM PST	Winter Storm Warning	REV	Douglas, Lyon, Storey, Washoe	4 days
Jan 25, 12:30 PM PST	Winter Weather Advisory	REV	Douglas, Washoe	16 hr
Jan 25, 12:33 PM PST	Wind Advisory	REV	Churchill, Lyon, Pershing, Washoe	57 hr

Nearby

Winter Weather Advisories in Nevada, 2021 Every winter weather advisory in 2021

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.