18zGFS/NAM as well as 00zGFS/NAM still showing a fairly decent cold front coming through for either late Sun night or early Mon morning with a deep sub 980mb low just off the off shore waters of the OR/WA coast. And appears that this deep low will stay well off shore, but still perhaps close enough that the OR/WA coast could see some breezy winds as it moves northward. After Monday, cool and showery conditions continue through mid-week under SW flow aloft as a deep trough of low pressure sends periods of showers up our way. Looks like a cool/cold upper level area of low pressure will settle over WA for late in the week with flow aloft turning more N-NWLY with both 500mb heights and surface thicknesses dropping to the lower 520`s. Though 00zGFS shows 516dm heights right over us, but take the models for what their worth. Wont say thing about lowland snow just yet as it`s still long range, but it`ll be cool and unsettled with the trough over head.
Friday, February 27, 2009
Rain at times this weekend.
18zGFS/NAM as well as 00zGFS/NAM still showing a fairly decent cold front coming through for either late Sun night or early Mon morning with a deep sub 980mb low just off the off shore waters of the OR/WA coast. And appears that this deep low will stay well off shore, but still perhaps close enough that the OR/WA coast could see some breezy winds as it moves northward. After Monday, cool and showery conditions continue through mid-week under SW flow aloft as a deep trough of low pressure sends periods of showers up our way. Looks like a cool/cold upper level area of low pressure will settle over WA for late in the week with flow aloft turning more N-NWLY with both 500mb heights and surface thicknesses dropping to the lower 520`s. Though 00zGFS shows 516dm heights right over us, but take the models for what their worth. Wont say thing about lowland snow just yet as it`s still long range, but it`ll be cool and unsettled with the trough over head.
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Hey Andy. Is it possible for you to post a 24 hour snow map for next Thursday? It's still possible for some cold air to move in here in that time period right? Thanks.
ReplyDeleteHi Brett. Hows your day going?
ReplyDeleteFrom what was seen last nights models, it appear some spotty snow could be seen, but in this mornings 12z UW-WRF and 6z/12zGFS models, the colder does the usual thing and slides well east of us and over into Montana for later this coming week. So snow could still be a possibility for later in the week, but is still a bit up in the air right now.
Here`s the link to the loop of the 24hr snow fall totals which right now shows snow confined the Cascades/Olympics.
http://www.atmos.washington.edu/~ovens/loops/wxloop.cgi?mm5d2_x_wa_snow24+///3