Seattle? Or Buffalo?

SEATTLE - For the third night in a row, The Northwest woke up to some bitterly cold temperatures by our usual winter standards. Morning lows were in the teens and low 20s again -- actually a few degrees colder than Friday night and on par with Thursday night's. See the chart at the bottom to see how cold it's been this past week. And to top it off, snow is creeping back into the forecast again for early next week.

We've also got a new wrinkle Sunday morning: freezing fog. The snow on the ground is adding just enough moisture to make fog, and of course, with it so far below freezing in the morning, that moisture will freeze to anything.

So icy roads will continue to be a concern through the day, especially in areas where it's foggy. That fog will burn off by later this morning, leaving a partly sunny day. But highs will once again struggle to get to 32.

Another cold night again expected Sunday night, but with some high clouds around, that should keep temperatures a couple of degrees warmer. But it'll be hard to notice as we're still looking at the upper teens to mid 20s.

Monday should be a little sunnier and a tad warmer -- just some high clouds filtering out the sun at times. Afternoon temperatures should finally make it above freezing, but not by much -- perhaps mid 30s.

We also have air stagnation advisories in effect through this period because of the cold air not moving much and trapping pollutants near the surface.

The big change in the weather forecast comes for late Monday night and into Tuesday morning. Forecasting models had been showing a system splitting and falling apart off our coast by then, leaving nothing behind by the time it got here. But now latest forecasts are thinking that system will now hold together fairly well, bringing another round of moisture to the area.

It looks like it could be just rain, but with temperatures still locked in the neighborhood of freezing, and a light east wind helping to dry out the lower levels, conditions are close enough that we'll have to watch for another round of snow and/or sleet/freezing rain for the Tuesday morning commute. Snow levels will generally be around 500-700 feet by then, but with dry air in place, any kind of oomph to a shower might drag the snow level down to the surface. So depending on shower intensity and elevation, we could have a mix of winter weather around the area. We'll keep an eye on it and know more Monday. Highs will be in the mid 30s.

Once this system passes Tuesday night, we're back to dry and cool, but shouldn't be as cold as we are now. Highs Wednesday-Friday should finally claw their way back to the low 40s with lows in the mid 20s to low 30s. Our next chance of rain is Saturday evening, and by then, it should be rain.

Morning Low Temperatures Over The Past 3 Days:

	Friday Jan. 12	Saturday Jan. 13	Sunday Jan 14
Arlington	10	12	N/A
Bellingham	11	15	11
Olympia	12	13	16
Shelton	13	18	26
Tacoma	14	15	16
Friday Harbor	15	29	19
Bremerton	16	19	28
Redmond	17	18	N/A
Vancouver, WA	17	20	17
Seattle (Boeing Field)	17	20	20
Forks	17	29	24
Mount Vernon	18	22	19
Oak Harbor	18	23	20
North Bend	19	21	22
Seattle (Sea-Tac)	19	21	20
Gig Harbor	19	23	24
Kelso	19	19	18
Everett	19	22	19
Renton	20	22	20
Port Angeles	21	22	26
Bellevue	21	21	21
Seattle (Sand Point):	23	25	22