Alert archive / Oregon / Winter Weather Advisories in 2021
Winter Weather Advisory 9, NWS Medford, OR
NWS Medford, OR issued this winter weather advisory at Jan 25, 2021, 5:23 AM PST for 7 counties in Oregon; Modoc County, Siskiyou County, California. It took effect at Jan 26, 2021, 10:00 AM PST. It was in force for 50 hr.
The area
The counties it named.
The facts
- Issued
- Jan 25, 2021, 5:23 AM PST (13:23 UTC)
- In effect from
- Jan 26, 2021, 10:00 AM PST
- Expired
- Jan 28, 2021, 12:00 PM PST
- In force
- 50 hr
- Issued by
- NWS Medford, OR
Counties Modoc County, CA, Siskiyou County, CA, Coos County, OR, Curry County, OR, Douglas County, OR, Jackson County, OR, Josephine County, OR, Klamath County, OR, Lake County, OR
The radar
The Medford radar (KMAX), 47 km from the middle of the area, began a volume at 13:26 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, 1.4 hours before the alert went out and 489 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
- 555 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 1 m²/s²
- 0-3 km storm-relative helicity
- 12 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 Medford, OR wrote its last area forecast discussion before this winter weather advisory went out at Jan 24, 10:32 PM PST, 6 hours 51 minutes earlier.
Area forecast discussion, Jan 24, 10:32 PM PST, 6 hours 51 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<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.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>The office that day
Everything else NWS Medford, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 24, 9:59 PM PST | Winter Weather Advisory | MFR | Coos, Curry, Douglas, Josephine | 12 hr |
| Jan 25, 2:33 AM PST | Storm Watch | MFR | 11 hr | |
| Jan 25, 5:23 AM PST | Wind Advisory | MFR | Klamath, Lake | 32 hr |
| Jan 25, 1:52 PM PST | Small Craft Advisory | MFR | 7 hr |
Nearby
Winter Weather Advisories in Oregon, 2021Winter Weather Advisories in California, 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.