Alert archive / Nevada / Winter Storm Watches in 2011

Winter Storm Watch 4, NWS Elko, NV

October 4, 20114 counties in Nevada

NWS Elko, NV issued this winter storm watch at Oct 4, 2011, 3:01 AM PDT for 4 counties in Nevada. It took effect at Oct 5, 2011, 11:00 AM PDT. It was in force for .

The area

The counties it named.

The facts

Issued
Oct 4, 2011, 3:01 AM PDT (10:01 UTC)
In effect from
Oct 5, 2011, 11:00 AM PDT
Expired
Oct 4, 2011, 2:30 PM PDT
In force
Issued by
NWS Elko, NV

Counties Elko County, NV, Eureka County, NV, Lander County, NV, White Pine County, NV

The radar

The Elko radar (KLRX), 103 km from the middle of the area, began a volume at 10:01 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

Salt Lake City I, UT (KSLC), launched 00:00Z, 10.0 hours before the alert went out and 345 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, Salt Lake City I, UT at 00:00Z on 2011-10-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 83 joules per kilogram.LCLLFCEL10008507005003002001001 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, Salt Lake City I, UT at 00:00Z on 2011-10-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 48 square meters per square second.193958Sfc1 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
83 J/kg
Mixed-layer CIN
-30 J/kg
Mixed-layer LCL
3046 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
48 m²/s²
0-3 km storm-relative helicity
41 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 Elko, NV wrote its last area forecast discussion before this winter storm watch went out at Oct 3, 11:55 PM PDT, 3 hours 6 minutes earlier.

Area forecast discussion, Oct 3, 11:55 PM PDT, 3 hours 6 minutes before
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Hazardous weather outlook, Oct 4, 2:41 AM PDT, 20 minutes before
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In the hours before

Special weather statement, Oct 4, 1:49 AM PDT, 1 hour 12 minutes before
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Special weather statement, Oct 4, 2:14 AM PDT, 47 minutes before
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      <div class="status" id="status">Temporary Notice</div>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

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

IssuedProductOfficeCountiesLasted
Oct 4, 1:49 AM PDTSpecial Weather StatementLKNElko26 min
Oct 4, 2:14 AM PDTSpecial Weather StatementLKNElko46 min
Oct 4, 3:05 AM PDTWind AdvisoryLKNWhite Pine40 hr
Oct 4, 2:30 PM PDTWinter Storm WarningLKNElko, Eureka, Lander, White Pine36 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.