Alert archive / Nevada / Winter Weather Advisories in 2012

Winter Weather Advisory 8, NWS Reno, NV

February 28, 2012Washoe County, Nevada; Modoc County, California

NWS Reno, NV issued this winter weather advisory at Feb 28, 2012, 4:36 AM PST for Washoe County, Nevada; Modoc County, California. It took effect at Feb 28, 2012, 10:00 PM PST. It was in force for 36 hr.

The area

The counties it named.

The facts

Issued: Feb 28, 2012, 4:36 AM PST (12:36 UTC)
In effect from: Feb 28, 2012, 10:00 PM PST
Expired: Mar 1, 2012, 10:00 AM PST
In force: 36 hr
Issued by: NWS Reno, NV

Counties Modoc County, CA, Washoe County, NV

The radar

The Reno radar (KRGX), 165 km from the middle of the area, began a volume at 12:33 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

Medford/Jackson, OR (KMFR), launched 12:00Z, 0.6 hours before the alert went out and 257 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: 529 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 147 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 Feb 28, 4:34 AM PST, 2 minutes earlier.

Area forecast discussion, Feb 28, 4:34 AM PST, 2 minutes before

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Hazardous weather outlook, Feb 27, 5:57 AM PST, 22 hours 39 minutes before

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In the hours before

Special weather statement, Feb 28, 4:01 AM PST, 35 minutes before

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      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 28, 3:43 AM PST	High Wind Warning	REV	Lyon, Mineral	42 hr
Feb 28, 3:43 AM PST	Wind Advisory	REV	Churchill, Douglas, Lyon, Pershing, Storey, Washoe	42 hr
Feb 28, 9:17 AM PST	Lake Wind Advisory	REV	Douglas, Washoe	13 hr

Nearby

Winter Weather Advisories in Nevada, 2012 Winter Weather Advisories in California, 2012 Every winter weather advisory in 2012

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.