The winter storm will arrive in the state tomorrow

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GRAND JUNCTION, Colorado (KKCO) – Active Alerts:

  • Wind Advisory is active for Mesa, Delta, Garfield and Grand counties until midnight.
  • The winter weather advisory remains active from midnight tonight until midnight Monday. It will include areas of Mesa, Delta, Montrose and Ouray counties.
  • The winter storm warning is active overnight until 6 a.m. Monday. It will include areas of Mesa, Delta, Garfield and Gunnison counties.

Our winter weather alerts include areas in the highlands and mountains from 8,500 feet and above. However, snowfall can still accumulate below this elevation, giving way to slippery roads. Roads that may have the potential for snow cover may include our mountain passes, such as Highway 550 in San Juan and along the I-70 corridor near Vail. So if you have to travel tomorrow, drive slowly and be prepared for any pull or chain laws on any road.

It’s the calm before the storm. Today we started with lots of sun and little cloud cover and sat in dry conditions. In the evening, cloud cover began to appear over the western slope. Temperatures remained in the lower 70s at Grand Junction and Delta and in the upper 60s for Montrose and Cortez.

There will be a good chance that scattered showers will start to arrive on the western slope. Temperatures will remain warm enough for precipitation, but in higher elevations such as San Juan, there is a slight chance of mixed precipitation to light snowfall. Temperatures will drop to the mid 40’s tonight for Grand Junction and Montrose.

Tomorrow the main snow gun arrives and areas at higher altitudes may already start to receive some of this snowfall in the morning. As the colder air slowly begins to settle, there will be scattered and widespread snow and rain showers to mix in the precipitation during the morning hours. As the day progresses and the air continues to cool, we will begin to see more of a transition to snowfall. For our valleys, we will continue to receive widespread scattered showers to mix up the precipitation.

When the evening hours arrive, this will become the peak of the winter storm, where most of the heaviest snowfall will occur in the high elevations and highlands. For our valleys, this will be the best time for the scattered showers to start turning into a wintry mix.

Snow accumulation will vary depending on location. Upper county areas can receive snowfall amounts of around seven to nine inches. Other places like Aspen and Vail can approach the ten to the one foot mark. In our mountains, it is possible that the snowfall exceeds the margin of the foot.

However, for our valleys, since the snowfall will be minimal, the amounts of rain will explain this measure. Areas like Grand Junction can receive up to an inch of precipitation. Places like Delta and Montrose will stay lower around the half inch mark. Locations that receive rain before snow accumulation will extend approximately one-half to three-quarters of an inch.

Meteorologist Chris Guevara

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