Alert archive / California / Winter Storm Watches in 2008

Winter Storm Watch 13, NWS Reno, NV

December 23, 2008Douglas County, Washoe County, Nevada; 9 counties in California

NWS Reno, NV issued this winter storm watch at Dec 23, 2008, 4:40 AM PST for Douglas County, Washoe County, Nevada; 9 counties in California. It took effect at Dec 24, 2008, 1:00 PM PST. It was in force for .

The area

The counties it named.

The facts

Issued: Dec 23, 2008, 4:40 AM PST (12:40 UTC)
In effect from: Dec 24, 2008, 1:00 PM PST
Expired: Dec 23, 2008, 4:01 PM PST
In force
Issued by: NWS Reno, NV

Counties Alpine County, CA, El Dorado County, CA, Lassen County, CA, Modoc County, CA, Mono County, CA, Nevada County, CA, Placer County, CA, Plumas County, CA, Sierra County, CA, Douglas County, NV, Washoe County, NV

The nearest sounding before it

Medford/Jackson, OR (KMFR), launched 12:00Z, 0.7 hours before the alert went out and 380 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: 789 m above ground
0-6 km bulk shear: 105 kt
0-1 km storm-relative helicity: 84 m²/s²
0-3 km storm-relative helicity: 162 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 storm watch 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 storm watch went out at Dec 23, 4:12 AM PST, 28 minutes earlier.

Area forecast discussion, Dec 23, 4:12 AM PST, 28 minutes before

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Nearby

Winter Storm Watches in California, 2008 Winter Storm Watches in Nevada, 2008 Every winter storm watch in 2008

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.