Thursday, Dec. 17th – Lincoln County
Summary: It rained on and off yesterday; heavy rain and windy this morning.
Past 24 Hours High/Low/Gust/Rain…
Lincoln City: 55F/47F/30mph/1.79”
Depoe Bay: 54F/45F/40mph/2.02”
A High Wind Warning has been issued by the National Weather Service for the Central Oregon Coast, in effect from this evening through early tomorrow morning. South to southwest wind 30-40 mph with gusts up to 65 mph on beaches and headlands, 25-35 mph gusting 50-60 in coastal communities. Due to saturated soils, trees will be more prone to toppling. This could result in scattered power outages, property damage and partial or full road closures. High profile vehicles will be subject to difficult driving conditions, especially on portions of Highway 101.
The Flood Watch continues in effect through tomorrow night. Storm total rainfall will be 3-7 inches on the Central Coast and in the Coast Range, and 1-3 inches in the Willamette Valley. With saturated soils and rivers still running high from last week’s heavy rain, rivers are likely to rise sharply in response to this week’s predicted rainfall. Ponding of water on roads and creek flooding are possible as early as Thursday morning. Flooding of faster-responding rivers (including the Siuslaw and Mary’s Rivers) could begin Thursday afternoon, with slower-responding rivers reaching flood stage sometime Friday or early Saturday. Landslides and debris flows are possible during this flood event. People, structures and roads located below steep slopes, in canyons and near the mouths of canyons may be at serious risk from rapidly moving landslides. Those living in areas prone to flooding should be prepared to take action should flooding develop.
A Winter Storm Warning is in effect for the Cascades until 6:00pm this evening. Heavy snow early this morning will change over to rain for most locations by 10:00am this morning. However precipitation will be slower to change over to rain near the Columbia River Gorge and Mount Hood, especially the north and east slopes of Mount Hood where it may be late afternoon by the time precipitation changes to rain. There may be a brief period of sleet or freezing rain during the transition from snow to rain. Snow levels, starting off around 2,500 feet will be rising to 6,500 feet later this morning. However snow levels from Mount Hood northward will be slower to rise, likely not reaching 6,000 feet until later this afternoon. Accumulation of 10-14 inches, mainly Mount Hood northward and above 5,000 feet in elevation. The Cascade passes will see a quick 6-12 inches of snow before transitioning to rain later this morning. Heavy snowfall will likely create travel problems on Highways 26 and 20 with treacherous conditions expected near pass level. Snowfall rates of 1-3 inches per hour are possible, resulting in whiteout conditions at times.
A Storm Warning is in effect for Central Coast ocean waters (see Marine below).
Forecast: Rain. That single word could be the complete forecast for the entire week ahead. There’ll be various flavors of rain and showers, but not a day goes by in the extended outlook without some form of precipitation likely. Heavy rain today through tonight with another 2-4 inches and breezy as southerlies rise to 30-40 gusting 50, then to 35-45 mph gusting 55-60 this evening. Showers tomorrow with southerlies down to 25 mph or so. Outlook is for showers Saturday, another storm on Sunday, followed by additional storms with rainy and windy conditions through Wednesday. Seasonal temps with highs of 50F and lows of 40-45F are predicted.
Christmas… A slight chance of snow mixed with rain for Christmas Eve, rain showers on Christmas Day, cool with lows near 35F, highs about 45F, and the Full Yule Moon on Christmas morning.
Travel: In the Coast Range, there’s wet pavement on the highways this morning, temperatures are 40-45F in the passes; rainy and windy today, temps 45-50F. Valley destinations are expecting heavy rain and breezy conditions, the thermometer rising to 55F. The Columbia River Gorge forecast calls for snow possible early, then heavy rain, east winds gusting 25-30 mph, high of 40F. For the Cascades, there’s snow on the highways this morning with temperatures about 30F, chains or traction tires are required; a Winter Storm Warning is in effect (see above), the snow level is 5,000 feet.
Marine: S winds are blowing 25-40 knots this morning and seas are rough 12-footers at 9 seconds. Small Craft Advisories for winds and hazardous seas are in effect until this evening when they’re replaced by a Storm Warning. Southerlies 20-30 knots gusting 40 today, swells 10-11 feet at 15 seconds. Tonight, S winds 30-40 knots gusting 50 and combined seas building to 18 feet. The breeze and seas ease tomorrow as W winds 15-20 knots are expected with swells 10-12 feet. Outlook is for southerlies 20-25 knots on Saturday, 25-35 knots on Sunday, and 20-25 knots Monday; swells 15-19 feet throughout the period. Always check the latest Bar Reports before you venture offshore.
On the Beach… Rainy and breezy, surf 10-15 feet (moderate).
* For a safe and enjoyable time on the Central Coast, the Oregon Parks & Recreation Department offers these Beach Safety Tips.
12/17 Thu 10:32 AM 3.18 L
12/17 Thu 04:20 PM 7.31 H
12/17 Thu 10:41 PM 0.85 L
12/18 Fri 05:36 AM 8.38 H
In Short: Heavy rain, very windy, showers, then continued stormy.