Another wind advisory issued.

The National Weather Service in Seattle has issued a wind advisory as of 3:42 PM December 28th, 2011.  Winds are expected to increase out of the south to 20-30mph tonight with gusts 40-50mph.  The winds are expected to be strongest near the water.  The advisory expires as 6AM Thursday morning.

A wind advisory is issued when sustained winds of 30-39mph or gusts of 45-57mph are likely.  Small branches may be knocked down, and localized power outages are possible.

Second power outage

We had another power outage tonight at 6:15 PM, it was for 30 seconds, so if the backup battery worked, the station should not have been effected.  However the outage on Christmas day has messed up the clock on the weather station, I will have it fixed within the hour, I'm not sure if it will correct the time stamp on previous data or not, however given it's only 1 hour difference I don't think it will cause any issues.

Wind Advisory issued for tonight/tomorrow morning.

The National Weather Service in Seattle issued a Wind Advisory at 2:55 PM this afternoon.  The advisory is in effect from 6 PM tonight, December 27th, 2011 until 4 AM tomorrow morning December 28th, 2011.  This advisory covers all of the Puget Sound Lowlands, including Shoreline, and Lake Forest Park.  Winds are expected to pick up out of the south to southeast after 6pm tonight, and peak between 10 PM and 2 AM.  Winds are expected to be sustained between 20-35mph with gusts up to 50mph.  This appears to be rivaling the Christmas day winds.

A wind advisory is issued when sustained winds of 30 - 39mph or gusts of 45 - 57mph are likely.  Winds this strong can snap small branches, cause local power outages, and knock over small, shallow rooted, unhealthy, or dead trees.

It may not hurt to secure any lose belongings or decorations in personal properties.  Stay safe!

Christmas Day storm wind gusts

Shorecrest High: 37mph
Brookside Elementary: 28mph
Central Market 37mph

Looks like the general wind speed gusts in Shoreline peaked at about 37mph, at about 11:30am.

Other reports indicate that winds in the Richmond beach area reached 50 mph.

Christmas Day Shoreline Power Outage

A strong storm front that blew through at about 11:30AM this morning caused a power outage in Shoreline, mostly north of N185th ST from Richmond Highlands through Echo Lake, North Ridge, and North City.  This effected the weather station as well.   As a result data was not collected from 1pm - 2:50pm.  Backup battery only runs for about an hour.  The power outage lasted from 11:53AM to 2:45PM.

Last week's weather data, December 10th - 16th

Last week's data:
High temperature: 47.1°F (Friday)
Low temperature: 27.0°F (Monday night/Tuesday morning)
Rainiest day: 0.26 inches (Sunday)
Total rainfall: 0.30 inches
Warmest day: 43.8°F (Friday)
Coldest day: 30.5°F (Monday)
Average temperature: 36.5°F
Humidity high: 100%
Humidity low: 46%
High pressure: 29.943 inHg (Thursday and Friday)
Low pressure: 29.441 inHg (Tuesday)
Average humidity: 96%
Average pressure: 29.657 inHg
Barometer shift: 0.502 inHg

Average daily temperature so far in December, compared to December 2010.

November 19th - 25th: Weekly highlights and full data.

November 19th - 25th:
 
Highlights:
-Cold weather for the start, heavy rain for the remainder, and most of the week.
-Rain: 5.81 inches of rainfall! 3.79 inches of rain fell from Monday at 6am through Wednesday at 6am, (in 48 hours!)
-Wind: Tuesday early morning wind gusting up to 31 MPH, Thanksgiving day we had wind gusts to 34 MPH.  Wind data from the Home Education Exchange center, formally known as North City Elementary.

The data:
High temperature: 51.8°F (Wednesday)
Low temperature: 25.2°F (Sunday)
Rainiest day: 2.78 inches (Tuesday)
Total rainfall: 5.81 inches
Warmest day: 44.3°F (Tuesday)
Coldest day: 31.6°F (Sunday)
Average temperature this week: 38.8°F

High humidity: 100%
Low humidity: 70% (Friday)
High pressure: 29.914 inHg (Friday)
Low pressure: 28.851 inHg (Wednesday)
Average pressure: 29.271 inHg
Average humidity: 97%
Barometric shift: 1.063 inHg

Average daily temperature for November 2011 so far, compared to November 2010.

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.   All weather data unless otherwise noted is sourced from Carl's Shoreline Weather Station.
 

November 22nd 2011 wind event.

National weather service canceled the wind advisory at 12:52AM.  We still had some pretty moderate winds, and there was a couple of scattered power outages.  The Home Education Exchange weather station (North City Elementary) recorded a peak gust of 31 mph.  Winds peaked between 2:30 AM and 5:30 AM.  Now we have a heavy rain storm with flood watches and warnings in effect for the surrounding areas.

Another wind storm may blow through on Thanksgiving day.

NWS (National Weather Service) has issued a wind advisory for the greater Seattle area.

Monday November 21st, 2011 at 4:54 PM The National Weather Service in Seattle has issued a wind advisory for the area that includes Shoreline and Lake Forest Park.  The wind advisory is in effect from 7 PM this evening to 12 PM (Noon) Tuesday.

-Wind: South wind 20 to 30 MPH with gusts to 50 MPH.
-Timing: This evening through Noon Tuesday.  Winds are expected to peak from 10:00 PM tonight to 7:00 AM Tuesday morning.
-Impacts: Winds tonight through Tuesday morning could topple small trees or cause local power outages.

A wind advisory is issued when sustained winds of 30 to 39 MPH or gusts of 45 to 57 MPH are likely.  Winds this strong can snap small tree branches, topple small or shallow rooted trees and cause local power outages.

Snow in Everett.

Snowing in Everett Washington.  Accumulated amounts are spotty dustings.

Wintery Weather note.

Some hail and snow mixed in with rain tonight as a classic Puget Sound Convergence zone developed over the King/Snohomish County border.   The event continues, occasionally mixing with snow/hail and back to rain.   Temperatures are continuing to drop slowly at about the rate of -0.5°F/hour.  Currently it is 36.7°F in Shoreline.

Arctic air mass on the way this week.

Cold Arctic air has been building in Northern Canada and the Arctic for the past few weeks.  Forecast models appear to indicate now that this mass is going to head our way.   This could lead to our first significant lowland snow event for the entire Puget Sound region.   The cold air is expected to arrive on Friday November 18th, 2011.

New weather station server

The weather station got a server upgrade tonight.  About an hour and a half of false data starting at 9:45 lasting until about 11:15pm.  I had some issues with the software as I transferred it from a Windows 2000 Professional operating system to a Windows XP professional operating system.  The reason for the upgrade is due to anti-virus software no longer being supported widely for Windows 2000 Professional.

The new system is an Athlon 2400, with 2Gb of DDR2 ram with a 160Gb PATA harddrive running Windows XP Professional.  The station software is still Weather-Display however it is now the latest version of Weather-Display.  The new server should be more reliable with less reboots and down times than the old server.  It is also running an operating system that is more widely supported than the previous operating system.

Drizzle off and on.

Just noting that it drizzled most of the day without tipping the rain gauge until the evening.

Windstorm

Sunday September 25th, 2011, we had our first significant wind.  Winds peaked at about 1pm.  The Home Education Exchange (Formally known as North City Elementary) in Shoreline recorded a peak gust of 36mph.  Normal standards this is just a breezy day, however this early in the fall most trees still have all of their summer foliage which acts as wind sails.  Several power outages occurred in Shoreline and Lake Forest Park.  Scattered outages occurred else where around the Puget Sound as well.

Server outage, data loss.

At 4:45 PM pacific July 19th, 2011 the computer running the weather station software locked up and died.  I didn't notice until this evening.   No weather data was recorded between 7/19/2011@4:45pm and 7/20/2011 @ 7:40 pm.

Snow and Rain mixed in late April!

Monday, and Tuesday mornings, Gold Bar has been getting accumulating snowfalls. Wednesday (Today) we had a break in the weather, however tonight a convergence has developed with cold air moving in, causing a mix of rain and snow in Shoreline/Lake Forest Park, however it looks like the center of the convergence is at the moment occurring Between Everett and Shoreline, putting Lynnwood, Edmonds, Mountlake Terrace and Brier in the bull's eye.   We may have accumulating snowfall in the area Thursday morning.

Warmest day of the year, so far...

We had a high temperature of 60.6ºF today, with sunny skies and a strong breeze.

Weather station problem

My weather station's temperature, humidity, anemometer and direction sensor array is having radio interference problems lately.  Normally when it starts to cut out like it has I've replaced the batteries, however it is still having trouble.  It's possible I got a bad batch of batteries.

     On Sunday afternoon I will have the station offline for about 1 hour for battery replacement and other misc maintenance, including cleaning and rebuilding the rain gauge.

Weather Statistics from March 5th - March 18th

Wind, Rain, and Thunderstorms, oh my!

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.

-March 5^th – 11^th :

Warmest day: 46.5ºF (Wednesday the 9^th)

Coldest day: 38.5ºF (Monday the 7^th)

Rainiest day: 1.62 inches (Wednesday the 9^th)

Average temperature: 42.5ºF

High temperature: 52.7ºF (Wednesday the 9^th)

Low temperature: 32.5ºF (Monday the 7^th)

Total Rainfall: 2.46 inches

High humidity: 100%

Low humidity: 39% (Friday the 11^th)

Average humidity: 88%

High pressure: 29.619 inches (Saturday the 5^th)

Low pressure: 29.058 inches (Thursday the 10^th)

Average pressure: 29.414 inches

-March 12^th – 18^th:

Warmest day: 45.3ºF (Tuesday the 15^th)

Coldest day: 42.1ºF (Friday the 18^th)

Rainiest day: 2.28 inches (Monday the 14^th)

Average temperature: 43.6ºF

High temperature: 52.5ºF (Monday the 14^th)

Low temperature: 36.7ºF (Thursday the 17^th)

Total Rainfall: 5.84 inches!

High humidity: 100%

Low humidity: 36% (Thursday the 17^th)

Average humidity: 91%

High pressure: 29.530 inches (Tied Monday, Wednesday and Thursday, 14^th, 16^th and 17^th)

Low pressure: 29.028 inches (Sunday the 13^th)

Average pressure: 29.314 inches

Weather highlights:

-Wednesday March 9^th we had a period of heavy rainfall dump almost a half of inch of rain in 30 minutes!  We also had some breezy wind conditions, gusting to about 34mph at the Home Education Exchange center in Shoreline, also known as the old North City Elementary school.

-Thursday March 10^th we had a high wind advisory issued, later upgraded to a high wind warning for the area, with expected possible gusts to 60mph, however the highest gust I saw in the area was once again at the Home Education Exchange center in Shoreline at 42mph.

-Tuesday and Wednesday (March 15^th and 16^th respectively) we had a couple of thunderstorms roll through the area.

-We have received more rain this month, as of Tuesday the 15^th, than we normally average for the entire month of March.  So far this month we have received 9.67 inches of rain!  This is more rain than we got in January and February combined, and we still have another 2 weeks to go!

-Temperatures finally warming up a little.  We are still averaging in the lower to middle 40’s for the most part, which is more closer to normal for December and January, however we’re no longer in the 30’s mostly for average temperatures so far this month.  I’ll have more on this later when I write my seasonal report.

Weather for the coming week:

-I’m expecting more of the same, rain storms will start rolling through again at about the middle of the week, maybe sooner.  I don’t think we will get as much rain, as we have last week, but it’s not going to be dry.  Keep an eye on hill sides as the soil is still very saturated with water.

Tonight, there will be what is called a “Super Moon.”  The moon will be a full moon, and at its closest to earth that it has been since March of 1993, it will be about 14% bigger and about 30% brighter than normal.  Our cloud cover tonight may actually be forgiving enough to witness this event.  The moonrise and moonset should be spectacular if not blocked by cloud cover.  The moon will rise at 6:39 PM tonight, and it will set tomorrow morning at 6:44 AM.  The distance the Moon from the Earth is 356,642 Kilometers, or 221,607 Miles.

Windstorm today

We had a windstorm blow through today, gusting to 42mph in Shoreline.  It prompted the national weather service in Seattle to issue a Wind Advisory, which was later upgraded to a High Wind Warning.  The storm peaked at about 2:30pm and slowly died down to about 5pm, then rapidly died all the way to almost calm conditions after 5pm.   Power flickered once in a while in the North Ridge and Echo Lake neighborhoods, but as far as I know, City Light did not report any outages in Shoreline.

Excessive rainfall

At about Noon today we received 0.4 inches of rain in less than 30 minutes.

Winds gusted to 34mph today as well, wind data collected from the Home Education Exchange center, (Old North City Elementary.)

Weekly Weather Feb 26th - Mar. 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: 41.8ºF (Wednesday)

Coldest day: 26.3ºF (Saturday)

Rainiest day: 0.57 inches (Sunday) – (Some may have been snow/ice melt)

For the week:

Average temperature: 36.4ºF

High temperature: 47.5ºF (Tied between Wednesday and Friday)

Low temperature: 18.5ºF (Saturday morning)

Total rainfall: 2.27 inches

High humidity: 100% (Every day)

Low humidity: 38% (Friday)

Average humidity: 93%

High pressure: 29.707 inches (Tied between Thursday and Friday)

Low pressure: 28.821 inches (Wednesday, Remember that wind storm?)

Average pressure: 29.271 inches

Weather highlights for the week:

-Saturday was below freezing with ice in places until just before midnight when the temperature rose to 32.2ºF.

-Lots of precipitation this week.

-A windstorm hit the region Wednesday however areas hardest hit was the coast and northwest interior of the State.  However worthy of noting there was a power outage effecting 3,100 Shoreline customers, caused by a fallen tree on Dayton Ave N, near Dayton Pl, as previously reported.  Closing Shorewood High School and Einstein Middle school early.  Winds in the Shorelineand Lake Forest Park area peaked at about 35-37mph, some places including Central Market not even reaching peak gusts above 30mph.  This did not meet the criteria for a Wind warning or advisory, if it wasn’t for the power outage this would have just been considered a blustery day.  Sustained winds averaged about 15-25mph.

Weather for the coming week:

-It looks like Sunday (Today) is our only break.  We will continue the train of Pacific storms throughout the rest of the week, with rain in the lowlands, and snow in the mountains.  Temperatures may start to top out near 50 degrees by the end of the week, so it’s going to seem very warm compared to the last two months.

Wednesday March 2nd Windstorm

A brief windstorm Wednesday morning from about 9am - 2pm hit the Puget Sound region.   Winds in Shoreline gusted to about 35-37mph according to the school net stations within the city.  The old North City Elementary site recorded a gust of 37mph.  Central Market's weather station didn't see anything above 30mph.

    A power outage effecting 3,100 people prompted Shorewood High and Einstein Middle School to release early.  Power outage occurred at 9:40am and was restored at about 4:30pm.


My weather station was not effected by that power outage.  It is also operated on a backup battery and can last at least an hour without power.

Weekly Weather, Feb 19th - 25th

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: 36.5ºF (Saturday) 

Coldest day: 24ºF (Friday)

Rainiest day: 0.08 inches (Monday)

Average temperature: 32.2ºF

High temperature: 44.4ºF (Monday)

Low temperature: 20.8ºF (Friday)

Total rainfall: 0.16 inches (This week’s rainfall has actually been caused by melting snow in the rain gauge.  The rest of the snow fall has actually evaporated, not melted on Thursday night and Friday due to the dry artic air that moved in.)

High humidity: 100%

Low humidity: 33% (Sunday)

Average humidity: 81%

High pressure: 29.619 inches

Low pressure: 29.205 inches

Average pressure: 29.4 inches

Weather highlights this week:

-This was a very cold week!  Notice our average temperature was below 40ºF this week.

-The only day that was not below freezing for a low temperature was Saturday.

-Thursday and Friday averaged below freezing.  Thursday barely broke the freezing mark with a high of 32.1ºF.

-Monday night we had a wintery mix, which eventually turned to snow and left a dusting on the ground.

-Wednesday and Thursday: A winter storm warning was issued for Wednesday (the second winter storm warning issued for the 2010/2011 winter season,) but the storm basically missed Shoreline and Lake Forest Park.  We had intermittent snow showers throughout the two days, each left about a trace to half an inch of snow.  Thursday had a heavy enough shower in the evening to accumulate 2 inches of snow.  So over the two days I’m calling it a total of 4 inches of snow.  The trace amounts kept melting away as the ground was not quite below freezing yet, however most of the 2 inches Thursday night actually evaporated on Friday, due to the cold and very dry air.

Weather for the coming week:

-Sunday may warm up a little bit for a melt off of the little frozen stuff we have left.

-Temperatures all week are expected to struggle making it past the 40ºF mark.  With the exception of one or two warm fronts that may pass through.   Snow levels will remain between 1000 feet and sea level, so we may have continued interesting weather this week off and on as well.  Probably another busy week for me!  Stay tuned for future weather advisory’s, watches or warnings as I suspect we may have a couple more this week.  

Light snowfall today

Shoreline had some light snowfall, generating a dusting of new snow.   Temperatures are holding just under the freezing mark as well.

Meanwhile Everett received a fresh inch of new snow and roads are really slick from Everett all the way south until you get to about the middle of Edmonds.

Feb 23 - 24th Snow event, continued cold.

Skies are clearing now and temperatures are taking their nose dive into the teens.  It is currently 26ºF as I am writing this with a temperature dropping rate of 2ºF per hour.  We got about 2 inches of snow in this evening’s final and most impressive snowfall of the last two days.  I think overall the past 2 days we received a total of 4 inches, however the first 2 inches worth was all done in several snow shower bursts with a trace to half an inch here and there, that quickly melted off on Wednesday and Thursday morning.

     Roads in the area are icing over quickly now as even the treated roads are getting too cold to stay in liquid form. 

Wintery mix of snow/sleet/rain Shoreline, Monday night.

Monday night, Feb. 21st, 2011 about 6:45pm lasting until about 9:30pm, there was a heavy band of precipitation that started as a wintery rain mix, turning to all snow and leaving a dusting on the ground, which lasted until Tuesday morning at about 6:30am.

Snowfall in Everett today

Parts of Everett got hit with a very narrow convergence zone band of snow that stuck over the area from about 7:30am until around 1:30pm, prompting a winter weather advisory to be issued from the National Weather Service of Seattle.   The snowfall total was 3 inches, most of that accumulated between 9am and 12pm.

Weekly Weather, Feb 12th - 18th

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: 46.0ºF (Saturday)

Coldest day: 36.9ºF (Thursday)

Rainiest day: 0.81 inches (Monday)

Average temperature: 40.8ºF

High temperature: 54.1ºF (Saturday)

Low temperature: 31.6ºF (Friday)

Total rainfall: 1.93 inches

High humidity: 100%

Low humidity: 31%

Average humidity: 91%

High pressure: 29.530 inches (Sunday)

Low pressure: 28.851 inches (Monday) This pressure difference between Sunday and Monday gave me a headache that day.

Average pressure: 29.171

Weather highlights for the week:

-Lowest pressure this winter yet, at 28.851 inches on Monday.

-Some wet snow/mixed snow and rain showers overnight from Wednesday into Thursday morning.

-Radiate cooling caused ice/frost to form in spots and on exposed cars on Wednesday and Thursday.

-Below freezing low temperatures on Friday morning, with ice and frost in places.

Weather for the coming week:

-Looks like more of the same, cool showery stuff, we may have a couple clear but cool or cold sunny days.

-Monday – Wednesday could be interesting.  A one-two punch weather pattern may strike.  Monday a low pressure is going to slide down the Canadian west coast, and then down the Washington state coast, sucking cold artic air down from the interior of British Columbia behind the storm.  Then Tuesday into Wednesday a second low pressure wave will slide down the west coast of North America and at this point in time the air will have been cooled by the first storm enough that we could see a significant snow event.   Various forecast models with several agencies are inconsistent, have been changing it seems every 6 hours and none of them agree with each other. This is leading me to believe that this will be an interesting week.   Check back for any updates for winter watches or warnings.