Summary: After an unusually soggy November, December’s off to a good start with well over an inch already.
Past 24 Hours High/Low/Gust/Rain…
Lincoln City: 56F/47F/27mph/0.72”
Depoe Bay: 55F/44F/34mph/0.74”
Newport Airport Conditions…
Ceiling: scattered @ 500’ & 900’, overcast @ 1,500’
Visibility: 7 miles/Wind: N 6 mph/Pressure: 29.97”
A Special Weather Statement has been issued by the National Weather Service for a decent chance of a Wintry precipitation mix down to low elevations of Southwest Washington and Northwest Oregon late tonight and Monday. As cooler and somewhat drier air spreads into the area, this sets the stage for precipitation from the next system late tonight and Monday being snow down to low elevations.
When the air is relatively cool and dry like what is expected tonight, as precipitation first begins to fall, evaporation can cause additional cooling and lower the snow level even more. Weather models are now showing indications that this will take place. Warm ground and road surfaces will cause any snow that falls to the valley floors to initially melt and have little or minor impact, but if enough snow falls or if the intensity is enough some may begin to stick. The current idea is that perhaps up to an inch is possible. The best chance of accumulating snow is from about Salem northward, but that delineation is very approximate. A mix of rain and snow is also possible near the coast, but chances of sticking snow are remote at the coast.
In the Cascades, 6 inches or more of snow are possible late tonight and Monday. In the Cascade foothills and the Coast Range, amounts could reach 1-4 inches. Travel through the Cascade and Coast Range passes will probably be difficult as roads will likely become snow covered and slick.
Forecast: So, lots of talk about low elevation snow this week, but it still looks like the Central Coast will only see a few flakes mixed in with the rain. Of course, these events are notoriously hard to predict (i.e., a couple of Winters ago when a similar situation ended up dumping 6 inches of snow in our area). Rain this morning, showers midday, rain returning late this afternoon, the mercury falling into the low-40s. Tonight, more rain, low of 40F. The steady rain becomes showers again tomorrow, high around 45F. Outlook is for drying and cooler Tuesday and Wednesday, maybe some morning frost, heavy rain and breezy Thursday, warming a bit, rain likely Friday, then showers on Saturday.
NOTE: Be sure to follow Weather or Not’s Twitter feed to keep updated on Winter’s active and rapidly changing weather; you’ll get immediate notification of any advisories, watches or warnings. Follow @chrisburnswx.
Travel: In the Coast Range this morning, there’s wet pavement, rain and 40F in the passes; heavy rain turning to showers today, high temperature 40-45F. Willamette Valley destinations are expecting rain, the thermometer falling to 40F. The Columbia River Gorge forecast calls for rain turning to showers, light west winds, high of 35F. For the Cascades, highways are snow-covered, it’s snowing hard and continuously this morning, temps near 30F, chains or traction tires required. A Winter Weather Advisory is in effect through 4:00pm this afternoon for an additional 6-10 inches of snow, the snow level is below the passes at 3,000 feet. Outlook for weekend travelers is wet roads tonight at the lower elevations, but snow in the Cascades with another 1-3 inches accumulation. * Motorists should always visit ODOT’s TripCheck before hitting the road.
Marine: NNW winds are blowing 15-20 knots gusting 25 this morning with rough seas 15 feet at 14 seconds. A Small Craft Advisory for hazardous seas is in effect through Tuesday afternoon. A Small Craft Advisory for winds is in effect through this evening. Northerly winds 15-20 knots gusting 25 today, seas 13 feet at 14 seconds. Tonight and tomorrow, W winds 15-20 knots gusting 25 and swells 12 feet at 13 seconds. Outlook is for NE wind easing to 5-15 knots on Tuesday, swells 13 feet at 12 seconds, and then southerlies 20-25 knots with seas 6-12 feet Wednesday and Thursday. * Make sure you check the latest Bar Reports before venturing offshore.
On the Beach… Rain, breezy, surf 10-12 feet (moderate).
* For a safe and enjoyable time on the Central Coast, the Oregon Parks & Recreation Department offers these Beach Safety Tips.
12/04 Sun 08:53 AM 4.00 L
12/04 Sun 02:38 PM 7.81 H
12/04 Sun 09:27 PM 0.42 L
12/05 Mon 04:26 AM 7.43 H
In Short: Rain, moderate winds, showers, then unsettled and cool.