Alert archive / Oregon / Heavy Snow Warnings in 2008

Heavy Snow Warning 2, NWS Medford, OR

January 7, 2008Curry County, Douglas County, Josephine County, Oregon; Siskiyou County, California

NWS Medford, OR issued this heavy snow warning at Jan 7, 2008, 3:58 PM PST for Curry County, Douglas County, Josephine County, Oregon; Siskiyou County, California. It took effect at Jan 7, 2008, 6:00 PM PST. It was in force for 25 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jan 7, 2008, 3:58 PM PST (23:58 UTC)
In effect from: Jan 7, 2008, 6:00 PM PST
Expired: Jan 8, 2008, 7:00 PM PST
In force: 25 hr
Issued by: NWS Medford, OR

Counties Siskiyou County, CA, Curry County, OR, Douglas County, OR, Josephine County, OR

The radar

The Medford radar (KMAX), 66 km from the middle of the area, began a volume at 00:02 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

Medford/Jackson, OR (KMFR), launched 12:00Z, 12.0 hours before the alert went out and 47 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: 694 m above ground
0-6 km bulk shear: 116 kt
0-1 km storm-relative helicity: 182 m²/s²
0-3 km storm-relative helicity: 175 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 heavy snow warning 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 heavy snow warning went out at Jan 7, 9:08 AM PST, 6 hours 50 minutes earlier.

Area forecast discussion, Jan 7, 9:08 AM PST, 6 hours 50 minutes before

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Hazardous weather outlook, Jan 7, 8:50 AM PST, 7 hours 8 minutes before

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In the hours before

Local storm report, Jan 7, 10:53 AM PST, 5 hours 5 minutes before

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Local storm report, Jan 7, 1:01 PM PST, 2 hours 57 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
Jan 6, 11:07 PM PST	High Wind Warning	MFR	Coos, Curry, Douglas	35 hr
Jan 7, 3:58 PM PST	Blizzard Warning	MFR	Douglas, Jackson, Josephine, Klamath	27 hr
Jan 7, 3:58 PM PST	Snow and Blowing Snow Advisory	MFR	Coos, Curry, Douglas, Klamath, Lake	27 hr
Jan 7, 3:58 PM PST	Snow Advisory	MFR	Coos, Curry, Douglas, Jackson, Josephine	18 hr
Jan 6, 11:07 PM PST	Wind Advisory	MFR	Siskiyou	35 hr
Jan 7, 3:58 PM PST	Winter Storm Warning	MFR	Siskiyou	24 hr

Nearby

Heavy Snow Warnings in Oregon, 2008 Heavy Snow Warnings in California, 2008 Every heavy snow warning in 2008

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.