UPDATE: ‘Hit Or Miss’ Lowland Snow Coming As Soon As Tuesday Night


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UPDATE 12/27/10: On Monday, Dec. 27th, the National Weather Service released another “Special Weather Statement” alerting us to the possibility of snow this week, starting now as early as Tuesday night.

The weather wizards are speculating that there’s a chance of lowland snow beginning Tuesday, Dec. 27th and lasting into Thursday morning.

However, as most residents know, predicting the weather with accuracy is difficult, and conditions could change, so stay tuned for updates.

“…there is a chance of hit and miss lowland snow from late Tuesday night into Thursday morning,” reads the statement. “A deep upper trough will settle over western Washington bringing with it colder temperatures and some precipitation. The precipitation with this feature will be showery… making it difficult to pinpoint where… when and how much will occur until very shortly before it happens. This is especially true for areas near the Puget Sound where due to slightly warmer temperatures… the showers could be a mix of rain and snow. With high temperatures in the 30s and lows in the 20s… some of the snow that does fall will likely stick.”

Here’s the statement, posted at 4:47am Dec. 27th in its entirety:

Statement as of 4:47 AM PST on December 27, 2010

… Wintry weather is heading to western Washington this week…

A couple of winter weather events are coming this week… including the possibility of lowland snow beginning late Tuesday night.

The first winter weather event is a mountain snowfall event for tonight and Tuesday. Fairly strong westerly flow aloft and a moist air mass will create a heavy snow producing pattern for the mountains. A total of one to two feet of new snow is expected  tonight into Tuesday. A Winter Storm Warning is in effect for the  Cascades and Olympics for this event.

Then… and possibly of more interest… there is a chance of hit and miss lowland snow from late Tuesday night into Thursday morning. A deep upper trough will settle over western Washington bringing with it colder temperatures and some precipitation. The precipitation with this feature will be showery… making it difficult to pinpoint where… when and how much will occur until very shortly before it happens. This is especially true for areas near the Puget Sound where due to slightly warmer temperatures… the showers could be a mix of rain and snow. With high temperatures in the 30s and lows in the 20s… some of the snow that does fall will likely stick.

The potential for snowfall is still a few days away and the forecast could change. The precipitation currently looks more showery rather  than a widespread snowfall and showers imply a more hit or miss type of snow event. Still… lowland snow is usually a big event around  western Washington… so stay tuned to the latest forecasts and statements.

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