PORTLAND, Ore. (KOIN) — We’re halfway through a long holiday weekend for many, and there might be weather-related issues before the end of it.

Saturday is a dry, cloudy break.

Sunday, get ready to rock n’ roll. Here comes the snow, with lots of it in the Cascades and Blue Mountains, and the potential for lower snow in the Coast Range, making for tough driving.

Forecast snow levels:

Saturday Night ⬇️ 3,000′

Sunday snow levels: lowering to 2,000′

Monday morning: 1,000′ – 1,500′ snow on Coast Range

Weather alerts issued by the National Weather Service

UPDATE: A Winter Storm Watch has been upgraded to a Winter Storm Warning Sunday morning to Monday morning for the Oregon and Washington Cascades.

* WHAT...Heavy snow expected. Total snow accumulations of 12 to
  18 inches. Winds gusting as high as 40 mph.

* WHERE...Northern Oregon Cascades.

* WHEN...From 4 AM Sunday to 10 AM PST Monday.

* IMPACTS...Travel could be very difficult.

* ADDITIONAL DETAILS...High end amounts of up to 24 inches of snow
  possible in highest elevation areas. Reduced visibility is
  likely in areas of heaviest snow and wind.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

For the latest road conditions call 5 1 1, or visit
for Oregon: https://www.tripcheck.com
and for Washington: https://wsdot.com/travel/real-time/map

WINTER STORM WATCH IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY AFTERNOON

* WHAT…Heavy snow possible. Total snow accumulations of 7 to 12 inches above 4000 feet and 4 to 7 inches below 4000 feet. Winds could gust as high as 45 mph.

* WHERE…In Oregon, Northern Blue Mountains of Oregon. In Washington, Northwest Blue Mountains.

* WHEN…From Sunday morning through Monday afternoon.

* IMPACTS…Travel could be very difficult to impossible. The hazardous conditions could impact the morning commute.

* ADDITIONAL DETAILS…Snow will create travel issues over the passes along Interstate 84 and Highway 204. Holiday travelers need to make sure vehicles are equipped for heavy snow which includes carrying traction devices or tires, shovels, and flashlights. Travelers may also consider alternate travel plans.