Alert archive / Nevada / Snow Advisories in 2007

Snow Advisory 1, NWS Reno, NV

January 3, 20074 counties in Nevada; Modoc County, Mono County, California

NWS Reno, NV issued this snow advisory at Jan 3, 2007, 3:40 PM PST for 4 counties in Nevada; Modoc County, Mono County, California. It took effect at Jan 3, 2007, 10:00 PM PST. It was in force for 29 hr.

The area

The counties it named.

The facts

Issued
Jan 3, 2007, 3:40 PM PST (23:40 UTC)
In effect from
Jan 3, 2007, 10:00 PM PST
Expired
Jan 5, 2007, 3:02 AM PST
In force
29 hr
Issued by
NWS Reno, NV

Counties Modoc County, CA, Mono County, CA, Douglas County, NV, Lyon County, NV, Storey County, NV, Washoe County, NV

The radar

The Reno radar (KRGX), 21 km from the middle of the area, began a volume at 23:40 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

Oakland, CA (KOAK), launched 12:00Z, 11.7 hours before the alert went out and 306 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, Oakland, CA at 12:00Z on 2007-01-03Temperature 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, Oakland, CA at 12:00Z on 2007-01-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 38 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
1098 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
38 m²/s²
0-3 km storm-relative helicity
88 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 snow 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 snow advisory went out at Jan 3, 2:45 PM PST, 55 minutes earlier.

Area forecast discussion, Jan 3, 2:45 PM PST, 55 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jan 3, 2:04 AM PSTWind AdvisoryREVDouglas, Lyon, Mineral, Storey, Washoe32 hr
Jan 3, 3:08 AM PSTWinter Storm WarningREVDouglas, Washoe37 hr

Nearby

Snow Advisories in Nevada, 2007Snow Advisories in California, 2007Every snow advisory in 2007

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.