Alert archive / Nevada / Winter Storm Watches in 2016

Winter Storm Watch 7, NWS Las Vegas, NV

December 21, 2016Clark County, Lincoln County, Nye County, Nevada; Inyo County, California

NWS Las Vegas, NV issued this winter storm watch at Dec 21, 2016, 12:36 PM PST for Clark County, Lincoln County, Nye County, Nevada; Inyo County, California. It took effect at Dec 23, 2016, 12:00 PM PST. It was in force for .

The area

The counties it named.

The facts

Issued: Dec 21, 2016, 12:36 PM PST (20:36 UTC)
In effect from: Dec 23, 2016, 12:00 PM PST
Expired: Dec 22, 2016, 1:07 PM PST
In force
Issued by: NWS Las Vegas, NV

Counties Inyo County, CA, Clark County, NV, Lincoln County, NV, Nye County, NV

The radar

The Las Vegas radar (KESX), 182 km from the middle of the area, began a volume at 20:38 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

Reno, NV (KREV), launched 12:00Z, 8.6 hours before the alert went out and 338 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: 605 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: -66 m²/s²
0-3 km storm-relative helicity: 207 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 Las Vegas, NV wrote its last area forecast discussion before this winter storm watch went out at Dec 21, 10:00 AM PST, 2 hours 36 minutes earlier.

Area forecast discussion, Dec 21, 10:00 AM PST, 2 hours 36 minutes before

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Nearby

Winter Storm Watches in Nevada, 2016 Winter Storm Watches in California, 2016 Every winter storm watch in 2016

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.