Two windstorms in a row.

Saturday February 12th we had a windstorm blow through causing scattered outages throughout the region, it was a fairly mild one, it only warranted a Wind Advisory from the national weather service.


Tonight we are having a second windstorm, with a complicated frontal system generating gusts up to 50mph.  I'll report more as the storm passes.

Weekly Weather, Jan 29th - Feb 4th

Warmest and coldest days are based on average temperature of the entire day, starting at midnight.  All other averages are based on the whole week.

Warmest day: 46.8ºF (Friday)

Coldest day: 33.5ºF (Tuesday)

Rainiest Day: 0.34 inches (Saturday)

Average temperature: 40.0ºF

Weekly high temperature: 50.7ºF (Thursday)

Weekly low temperature: 27.0ºF (Tuesday)

Total rainfall this week: 0.59 inches

Weekly high humidity: 100% (is anyone surprised yet?)

Weekly low humidity: 25% (Tuesday)

Average humidity: 71%

Weekly high pressure: 30.002 inches (Tuesday)

Weekly low pressure: 29.353 inches (Saturday)

Average pressure: 29.786 inches

Weather highlights:

-Cool and dry weather dominated this week.  Monday, Tuesday, and Wednesday started the mornings below freezing.

-Mild, cloudy and mostly dry weather on Thursday.

Upcoming week:

-I’m not expecting any major events this week.  Probably more of the same, starting with some light rain and then continued dry weather, of course this could change, especially because I base my weather guesses off of a combination of short and long range forecasts.  At the moment they’ve been rather inconsistent with each other which usually indicates that we could have a volatile forecast in the coming days.

Weekly Weather, Jan 22nd - 28th

Warmest and coldest days are based on average temperature of the entire day, starting at midnight.  Averages are based on the whole week.

Warmest day: 45.9ºF (Tied between Monday and Tuesday)

Coldest day: 41.7ºF (Thursday)

Rainiest day: 0.26 inches (Monday)

Average temperature: 44.0ºF

Highest temperature: 52.2ºF (Wednesday)

Lowest temperature: 37.0ºF (Thursday)

Total Rainfall: 0.43 inches.

Highest humidity: 100%

Lowest humidity: 81%

Average humidity: 100%

High pressure: 29.884 inches

Low pressure: 29.323 inches

Average pressure: 29.657 inches.

Weather highlights this week:

-0.26 inches of rain on Monday.

Weather for the coming week:

-Possible lowland snow on Sunday morning, or maybe late Saturday night.  Nothing wide spread.  Shoreline and Lake Forest Park may completely be missed by this event.

-Continued more dry weather, however cooler temperatures.

Weekly Weather, Jan 15th - 21st, 2011.

Warmest and coldest days are based on average temperature of the entire day, starting at midnight.  Averages are based on the whole week.

Warmest day: 52.4ºF (Sunday)

Coldest day: 36.9ºF (Wednesday)

Rainiest day: 0.59 inches (Saturday)

Average temperature: 43.8ºF

High temperature: 54.9ºF (Sunday)

Low temperature: 32.5ºF (Thursday)

Total rainfall: 1.63 inches

High humidity: 100% (Every day)

Low humidity: 73% (Wednesday)

Average humidity: 98%

High pressure: 29.943 inches (Wednesday)

Low pressure: 29.176 inches (Sunday)

Average pressure: 29.586 inches

Weather Highlights:

-Some strong breezy conditions on Sunday

-Thursday morning there was some ice pellets mixed with rain for most of the morning. 

The week ahead:

-I don’t think we’ll see anything significant this week.

Potential wet snow mixed rain tonight?

I think there is a remote chance for a possible rain and snow mixed, or snow shower tonight.  Cold air is lightly flowing down from the north due to a weak low pressure in Oregon.  When these are stronger low pressures it typically becomes a snow maker.  I'm not sure how cold the air in B.C. is right now, it may not be cold enough after last weekends march of mild moist storms through the region.  However, I think a good chance is still there.  Temperatures dropped this afternoon from 41°F down to 37°F, still dropping.

Weekly Weather, Jan 1/8 - 1/14 2011.

Warmest and coldest days are based on average temperature of the entire day, starting at midnight.  Averages are based on the whole week.

Warmest Day: 50.4ºF (Friday)

Coldest Day: 31.7ºF (Tuesday the snowy night)

Wettest Day: 1.71 inches (Mostly snow melt on Wednesday)

Rainiest Day: 0.59 inches (Thursday)

Average Temperature: 39.0ºF

High Temperature: 53.4ºF

Low Temperature: 26.4ºF

Total Rainfall: 2.48 inches

High Humidity: 100%

Low Humidity: 31%

Average Humidity: 88%

High Pressure: 29.766 inches

Low Pressure: 29.146 inches

Average Pressure: 29.5 inches.

Here’s how we are doing temperature wise compared to this month last year:

Snow event, then rapid melting

N 194th ST from Corliss Ave N.  Photo by: Carl Dinse

Time line:      
      Snow started falling right about 7:15pm Tuesday night.  Heavier snow hit at around 9pm at which point about 1 inch had accumulated.  At 1am we had 4-5 inches of snow on the ground depending on the area and elevation.  The rain started to mix in at about 2:15am Wednesday Morning but it was off and on snow and rain until about 6am.  After 6am the temperature rose sharply and all precipitation turned to 100% rain.  It also got quite breezy this morning and afternoon.


Here's the weather graph for the duration of the snow event:

Snow Melting and warmer weather is here:
       As the snow melted and temperatures warmed, even though it stopped raining at about 9am the rain gauge was measuring rain for most of the day as the snow piled in the rain gauge melted down.  Including the snow melt off, we've recorded 1.37 inches of rain so far since midnight.  More rain is on the way and it's expected to be very wet.  Land and mud slides may be a risk once again.

Overall:
Total snow accumulation at the weather station at 2am was 4.25 inches.  It begin to melt off after that time.  No freezing rain occurred in Shoreline so we only had to deal with a slushy wet mess for the morning commute hours, no ice thankfully.