Alert archive / Oregon / Winter Storm Warnings in 2010
Winter Storm Warning 25, NWS Medford, OR
NWS Medford, OR issued this winter storm warning at Dec 28, 2010, 4:45 AM PST for Klamath County, Lake County, Oregon; Modoc County, Siskiyou County, California. It took effect at Dec 28, 2010, 4:00 PM PST. It was in force for 12 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
- Dec 28, 2010, 4:45 AM PST (12:45 UTC)
- In effect from
- Dec 28, 2010, 4:00 PM PST
- Expired
- Dec 29, 2010, 4:00 AM PST
- In force
- 12 hr
- Issued by
- NWS Medford, OR
Counties Modoc County, CA, Siskiyou County, CA, Klamath County, OR, Lake County, OR
The radar
The Medford radar (KMAX), 115 km from the middle of the area, began a volume at 12:46 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, 0.8 hours before the alert went out and 390 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
- 1055 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 191 m²/s²
- 0-3 km storm-relative helicity
- 147 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 storm 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 winter storm warning went out at Dec 27, 8:59 PM PST, 7 hours 46 minutes earlier.
Area forecast discussion, Dec 27, 8:59 PM PST, 7 hours 46 minutes before
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Everything else NWS Medford, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 28, 3:15 AM PST | Small Craft Advisory for Winds | MFR | 43 hr | |
| Dec 28, 11:09 AM PST | Areal Flood Advisory | MFR | Curry | 20 hr |
| Dec 28, 2:27 PM PST | Gale Warning | MFR | 6 hr | |
| Dec 28, 4:45 AM PST | Winter Weather Advisory | MFR | Siskiyou | 34 hr |
Nearby
Winter Storm Warnings in Oregon, 2010Winter Storm Warnings in California, 2010Every winter storm warning in 2010
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.