Alert archive / Nevada / Winter Storm Watches in 2011

Winter Storm Watch 3, NWS Reno, NV

February 16, 20114 counties in Nevada

NWS Reno, NV issued this winter storm watch at Feb 16, 2011, 10:13 PM PST for 4 counties in Nevada. It took effect at Feb 17, 2011, 4:00 PM PST. It was in force for .

The area

The counties it named.

The facts

Issued
Feb 16, 2011, 10:13 PM PST (06:13 UTC)
In effect from
Feb 17, 2011, 4:00 PM PST
Expired
Feb 17, 2011, 4:12 AM PST
In force
Issued by
NWS Reno, NV

Counties Douglas County, NV, Lyon County, NV, Storey County, NV, Washoe County, NV

The radar

The Reno radar (KRGX), 27 km from the middle of the area, began a volume at 06:13 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 00:00Z, 6.2 hours before the alert went out and 307 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 00:00Z on 2011-02-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 93 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 2011-02-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 72 square meters per square second.1939587897Sfc1 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
93 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
1174 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
72 m²/s²
0-3 km storm-relative helicity
98 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 Feb 16, 9:42 PM PST, 31 minutes earlier.

Area forecast discussion, Feb 16, 9:42 PM PST, 31 minutes before
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Hazardous weather outlook, Feb 16, 5:40 AM PST, 16 hours 33 minutes before
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In the hours before

Local storm report, Feb 16, 5:57 PM PST, 4 hours 16 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Feb 16, 10:13 PM PSTWinter Storm WarningREVDouglas, Lyon, Storey, Washoe59 hr
Feb 17, 3:29 AM PSTLake Wind AdvisoryREVDouglas, Washoe7 hr
Feb 17, 4:12 AM PSTWinter Weather AdvisoryREVChurchill, Lyon, Mineral, Pershing, Washoe32 hr

Nearby

Winter Storm Watches in Nevada, 2011Every winter storm watch in 2011

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.