Alert archive / California / Winter Weather Advisories in 2021
Winter Weather Advisory 22, NWS Reno, NV
NWS Reno, NV issued this winter weather advisory at Dec 14, 2021, 1:41 PM PST for 4 counties in Nevada; 5 counties in California. It took effect at Dec 15, 2021, 1:00 PM PST. It was in force for 24 hr.
The area
The counties it named.
The facts
- Issued
- Dec 14, 2021, 1:41 PM PST (21:41 UTC)
- In effect from
- Dec 15, 2021, 1:00 PM PST
- Expired
- Dec 16, 2021, 1:00 PM PST
- In force
- 24 hr
- Issued by
- NWS Reno, NV
Counties Lassen County, CA, Modoc County, CA, Mono County, CA, Plumas County, CA, Sierra County, CA, Douglas County, NV, Lyon County, NV, Storey County, NV, Washoe County, NV
The radar
The Reno radar (KRGX), 42 km from the middle of the area, began a volume at 21:43 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, 9.7 hours before the alert went out and 151 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 797 m above ground
- 0-6 km bulk shear
- 96 kt
- 0-1 km storm-relative helicity
- 39 m²/s²
- 0-3 km storm-relative helicity
- -106 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this winter weather 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 winter weather advisory went out at Dec 14, 1:38 PM PST, 3 minutes earlier.
Area forecast discussion, Dec 14, 1:38 PM PST, 3 minutes before
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Special weather statement, Dec 14, 10:48 AM PST, 2 hours 53 minutes before
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</html>Local storm report, Dec 14, 10:55 AM PST, 2 hours 46 minutes before
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</html>Local storm report, Dec 14, 11:00 AM PST, 2 hours 41 minutes before
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<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
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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</html>The office that day
Everything else NWS Reno, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 14, 5:10 AM PST | Winter Storm Watch | REV | Douglas, Washoe | 9 hr |
| Dec 14, 1:41 PM PST | Winter Storm Warning | REV | Douglas, Washoe | 44 hr |
Nearby
Winter Weather Advisories in California, 2021Winter Weather Advisories in Nevada, 2021Every winter weather advisory in 2021
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.