Cold Spell & Freezing Rain Threat Is Over

December 27, 2017

10am Wednesday

As expected there were no new areas of icing on metro roads this morning.

Icy roads in the hills and mainly east of I-205 of course stayed put and a new layer of ice showed up from showers/drizzle, but that was in the forecast too.  Temperatures have now risen to or above freezing just about everywhere in the metro area and will continue rising through the day (slowly).

web_metrotemps (1)

More important, all road pavement temperatures except right at Troutdale are above freezing too.

The Portland stats for our Christmas snow/ice episode:

Official Snow (measured at Portland NWS in Parkrose)  

  • 1.0″ – December 24th

Official Ice (freezing rain measured at PDX Airport by automated sensor)

  • .31″ – December 24/25th
  • .08″– December 26/27th

 

The easterly wind through the Gorge has died down to a slight breeze so we’re done with the “resupply” of cold air.

The ECMWF has hinted for a few runs that we get a southerly breeze coming up the Willamette Valley today.  Now the WRF-GFS and MM5-NAM show the same thing.  In fact the ECMWF has us jumping into the 40s this afternoon; warmer than our forecast.  I’m guessing this will probably happen except right along the Columbia River.

Enjoy the milder weather today; tomorrow late afternoon/evening we should see temperatures jump to around 50 or so on a stronger southerly breeze.

Chief Meteorologist Mark Nelsen