A Brutal Day in the Weather Center

December 29, 2009

I have a brief break before I go on-air and apologize to the masses for the 2-5 hour commutes this evening.  I’ve been constantly busy since around 2:30pm.  This blog has seen about 34,000 hits today!

I’ll give my thoughts on today’s mess tomorrow when I get a chance.  For now it’s obvious we won’t have any dramatic warming overnight.  But we do gradually transition to mild onshore flow the next 12 hours at the surface and up above.  So unless we get some sudden clearing westside metro, the only spots to refreeze will be right near the Columbia River Gorge. 

Chief Meteorologist Mark Nelsen

Snow Totals Ver 1.0

December 29, 2009

Okay…it’s that time.

Post your snow totals ONLY in the comments.  Any other discussion of weather needs to continue in the other posts.

1. Total on ground

2. Location

3. Elevation if you know it.

Let the Fun Begin!

December 29, 2009

Ahh, the good times are returning this afternoon.  Now we know the atmosphere overhead is cold enough to support snowfall here in the Valley.  Looks like everyone is going to get at least a quick burst of snowfall.  Most likely the best place for good accumulation will be the Coast Range “upslope” areas from Sheridan to Banks/Vernonia where easterly flow is running into the Coast Range.  This also gives a slightly deeper pool of cold air out there.  No reason 2-3″ can’t fall in the next few hours.

Interestingly enough, the mixing of the easterly Gorge wind may keep us from getting much in Vancouver, Portland, and Gresham.  We’ll get the evaporative cooling, but maybe just too much mixing to get temps down to 32 degrees.