Pacific Northwest Weather

[TT-SEA]

The temperatures across Western Washington can be highly variable in any season.

The warm season is no exception.

It can easily go from the 60's to the 80's in just 2 days with a trough moving out and a ridge moving in.

It can also go from 90 degrees one day to the 60's the very NEXT day with a marine push.

It is totally normal to have one or two days in the 80's and even approaching 90 near the foothils during May or early June.

[TT-SEA]

An example from 2001...

Seattle went from a high of 60 degrees on the 5/19/01 to 83 degrees on 5/22/01.

It was back down to 55 degrees for a HIGH on 5/28/01 and then up to a high of 85 degrees on 5/31/01.

Then it was back down to a HIGH of 57 degrees on 6/2/01.

[TT-SEA]

Disappointed with the entire 00z run GFS.

No fun during the weekend and it once again is WAY too agressive with the jet stream and upper low by the end of next week.

Trust me... it will back off once again for next week.

Weak zonal flow. Thats it.

Partly cloudy... a few mountain showers... temperatures near normal.

When I get a handle on the pattern... I can easily pick out the bad runs of the GFS.

[andycottle]

Lastest GFS and ECMWF now showing dry and pleasntly warm weather over the weekend, while the GEM model is showing dry conditions on Saturday, with a bit precip for the South-Central sound area, while Northen areas stay precip free, but with mainly cloudy skies and somewhat cool temps.

-- Andy

PS: Just now looking at the MOS models.... Friday could be down right WARM and toasty...at least for month of May anyway. NGM has a high of 87 at Seattle while ETA shows 86 and MRF having a of 79. So depending how you look at this, it`ll sure be a nice wonderful day to be outdoors!

[AnthonyC]

Ready for a mini heatwave? Our first heatwave of the summer season is about to begin...or is currently beginning.

Thursday looks to be the warmest day...but even Friday looks to be hot as the thermal trough takes its time moving east of the cascades. Some updated forecasted highs for Thursday/Friday: Seattle-89,85F; Everett-86,82F, Tacoma-91,88F, Olympia-92,87F, Bellingham-87,81F.

Depending on when the thermal trough moves east of the cascades...either Friday morning or Friday afternoon...will bring variability to the temperatures for Friday. If the thermal trough didn't move east until the evening, Friday may be warmer than Thursday...but if it moved east Friday morning, it could be in the upper 60s all day.

Anthony

[weather girl]

I'm not big on heat lows, but it is fun to watch them track up the coast. As you know, you can easily see the temperature shifts in just a few miles. It's nothing for it to be 80 in Astoria (northern Oregon coast) and in the 50s in Newport (about 100 miles south). And I do enjoy those first few "puffs" of westerly winds in the valley as the winds begin to shift.

I think we'll hit 90 here in Salem tomorrow. But it will be up and down...I don't expect us to be up there all day like we are when this happens during the peak summer months.

[andycottle]

Good morning everyone!

Taking a good look at the latest models this morning, it would seem that the Thursday and especaily Friday/Saturday time frame could be quite warm as the GFS, GEM and ECMWF are showing 500MB heights at or just above 576DM. And 850MB temps are near 18+C. ETA MOS at Seattle is even giving some low 90 readings for Friday and Saturday, how ever, GFS MOS is much lower and shows 83 and 81 during this time. NGM model just a tad warmer....86 Friday/ 81 Saturday.

The three modles mentioned above, including the UKMET and NAM are also showing a dry weekend with high heights and rather mild, sunny weather for the month of May. So over all, and if models are correct, this weekend should be a spectaular one! So if you`ve not had use for the sun block yet, you mostly be using it this weekend. enjoy this nice weather while it lasts! Longer range outlook shows a weak, but some what cool zonal flow setting up for the first part of June with showers at times.

-- Andy

[weather girl]

Can somebody help me out? I'm having a bit of a problem. I recently read (I'm paraphrasing):

The SOI is about to reverse itself over the next few days, and what's happening now with the MJO fades east...

Even though I think we're in for some big time pattern changes, I have no idea what this means.....

[TT-SEA]

Looking very dull for the next two weeks and beyond... despite some model runs that showed otherwise.

Maybe some showers this weekend... but probably nothing too exciting.

Then its weak zonal flow for the forseeable future. Very little rain and normal temperatures.

[TT-SEA]

I guess Snow_Wizzard takes a break when there is basically nothing on the horizon but normal weather.

The ETA (NAM) still shows a chance of showers this weekend... but it looks really boring for quite a long time!!

[andrewr]

Currently 82 degrees! NWS has a high of 91 for my area tomorrow; I hate it when it gets that hot. The upstairs takes days to cool off to a bareable temperature so I guess a few restless nights are in store.

[W13]

Currently 77*F under Sunny Skies. An absoutely spectacular day!

Tommorow looks even better, with highs possibly reaching the 90*F mark in many places.

I can truly say: "I'm lovin' it!"

[andycottle]

Quite a nice day here too! Very sunny and has been like that since this morning. My current temp at 5:09pm is 75 with DP of 46 and humidity 35%. -- Andy

[andycottle]

A marine push not too likely this weekend!

Just a quick weather outlook update here...

NWS is forecasting the possiblity of a marine push over the weekend. I don`t see that happening in the models. Latest GFS is showing spectaular weather right through the weekend with 850MB temp in the 18 to 20+C range and 500MB heights anywhere from 576 to 582DM. I say that is darn nice weather! In fact, weather looks pretty nice through about the 31st. Let the good weather roll onward! -- Andy

[W13]

You mean GFS throughout the idea of showers for the weekend?! What a surprise.

This weather is great, let it live on!

[W13]

Something fishy appears to be going on with the WeatherBug station at Millenium Elementary School in Kent, which is 5 or so miles away from where I live. The temperature gauge in my backyard, in the shade shows 80*F as of 5:15PM, but WeatherBug puts at 74*F. The reading in my backyard has been constant for the entire afternoon, give or take one or two degrees. I think the temp gauge in my backyard would go with Andrew's observation of 82*F earlier this afternoon, especially since I only live around 10-12 miles from him.

Edit: It looks as if the Millenium ES station may not be the only one misreading the temperature, the station at Covington ES is reporting a current temp of 86*F after a high of 88*F.

[andrewr]

http://www.wunderground.com/weatherstat ... =KWACOVIN1 Here is another Covington weather station up at Crest Airpark and they said a high of 85 today; I got a high of 83. I guess anything is possible, but I still do believe it to run a little on the warm side.

[W13]

It is currently still 80.9 F in Ravensdale with 15% Humidty and a 29 F Dew Point - now that is pretty dry! Their high today was 82.6 F and they had a low of 36.8 F this morning. Pretty big temperature range, too.

[R-Dub]

A pleasent 67 degrees right now

5/25/05 LK Goodwin WA
Mostly Clear
7:21:23 PM CURRENT MIN/MAX
Temperature (ºF) 67.1 46.3 / 72.5
Humidity (%) 49.0
Wind (mph) WNW 2.2
Daily Rain (") 0.00
Pressure ("Hg) 30.16
Wind Chill:67.1 ºF
Monthly Rain:2.35 "
Dew Point:47.6 ºF

[TT-SEA]

I keep thinking thinking that the ETA (NAM) and the GFS are going to finally agree on the weekend.

Considering its almost Thursday!!

But there is AMAZING disagreement even in the 48-72 hour period.

If the ETA is correct... cooler and cloudier with showers.

If the GFS is correct... hot and sunny.

Totally opposite and getting farther apart with each run. One of the models is going to make a dramatic switch soon. They both cannot be right.