Alert archive / Oregon / Snow Advisories in 2005

Snow Advisory 5, NWS Medford, OR

November 30, 2005Klamath County, Lake County, Oregon; Siskiyou County, California

NWS Medford, OR issued this snow advisory at Nov 30, 2005, 2:30 AM PST for Klamath County, Lake County, Oregon; Siskiyou County, California. It took effect at Nov 30, 2005, 3:50 AM PST. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued: Nov 30, 2005, 2:30 AM PST (10:30 UTC)
In effect from: Nov 30, 2005, 3:50 AM PST
Expired: Nov 30, 2005, 11:30 AM PST
In force: 8 hr
Issued by: NWS Medford, OR

Counties Siskiyou County, CA, Klamath County, OR, Lake County, OR

The radar

The Medford radar (KMAX), 103 km from the middle of the area, began a volume at 10:28 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 00:00Z, 10.5 hours before the alert went out and 417 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: 1113 m above ground
0-6 km bulk shear: 69 kt
0-1 km storm-relative helicity: 131 m²/s²
0-3 km storm-relative helicity: 221 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 snow 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 snow advisory went out at Nov 29, 8:45 PM PST, 5 hours 45 minutes earlier.

Area forecast discussion, Nov 29, 8:45 PM PST, 5 hours 45 minutes before

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The office that day

Everything else NWS Medford, OR issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Nov 30, 11:16 AM PST	High Wind Warning	MFR	Coos, Curry, Douglas	27 days
Nov 30, 11:30 AM PST	Snow Advisory	MFR	Coos, Curry, Douglas, Jackson, Josephine, Klamath and 1 more	35 hr
Nov 30, 11:30 AM PST	Winter Storm Warning	MFR	Klamath, Lake	18 hr

Nearby

Snow Advisories in Oregon, 2005 Snow Advisories in California, 2005 Every snow advisory in 2005

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.