Alert archive / Oregon / Ice Storm Warnings in 2014
Ice Storm Warning 2, NWS Pendleton, OR
NWS Pendleton, OR issued this ice storm warning at Dec 4, 2014, 8:06 AM PST for Gilliam County, Sherman County, Wasco County, Oregon; Klickitat County, Washington. It was in force for 31 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 4, 2014, 8:06 AM PST (16:06 UTC)
- Expired
- Dec 5, 2014, 2:43 PM PST
- In force
- 31 hr
- Issued by
- NWS Pendleton, OR
Counties Gilliam County, OR, Sherman County, OR, Wasco County, OR, Klickitat County, WA
The radar
The Pendleton radar (KPDT), 147 km from the middle of the area, began a volume at 16:07 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, 4.1 hours before the alert went out and 381 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
- 829 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 76 m²/s²
- 0-3 km storm-relative helicity
- 205 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this ice storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Pendleton, OR wrote its last area forecast discussion before this ice storm warning went out at Dec 4, 2:38 AM PST, 5 hours 28 minutes earlier.
Area forecast discussion, Dec 4, 2:38 AM PST, 5 hours 28 minutes before
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Ice Storm Warnings in Oregon, 2014Ice Storm Warnings in Washington, 2014Every ice storm warning in 2014
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.