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patrick7032

Alaska/Western Canada obs and discussion

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Nice post. Interesting features that stick out in the PABE sounding is the strong above mountain top inversion (around 850 hpa) which probably enhanced the trapped wave mode, but probably too high to incite strong downslope winds given the height of the range. I am assuming no major downslope winds?

The other interesting feature is the model cross section which seems to be simulating a vertically propagating mode given the back tilt of the wave w/height. Do you guys have any higher res x-sections? I found the x-section tropopause uniquely flat...also neat to see how the model simulates (actually probably parameterizes) the dampening of the wave as it reaches the tropopause.

I was going to delve into vertically propagating mountain wave since one did develop later in the evening in this particular case but kept this post relatively short. You are right, no strong downslope winds developed, in fact the winds in Dillingham were even westerly off of Bristol bay in the afternoon and seemed almost decoupled from the flow aloft though this wasn't the case. I'll see if I can find a situation with our local wrf though I hear sometimes wrf can get alittle mountain wave happy.

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SXAK78 PACD 171245

RERCDB

RECORD EVENT REPORT

NATIONAL WEATHER SERVICE COLD BAY AK

445 AM AKDT WED AUG 17 2011

RECORD TEMPERATURE OF 68F WAS SET ON AUGUST 16, 2011. THE OLD RECORD

WAS 65F SET IN 1984.

$$

*** AUG 11

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A nice mid level trough will develop by early next week....if this verifies on SFC temp some areas along the western areas along the coast or in the chain may approach near record low max temps....if it verifies.

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Definitely been a warm 8 days in the Aleutian Island chain as that ridge built over us. A few obs are below along with a weather summary so far. The records are highlighted in red and near records in pink.

Cold Bay:

PACD 170053Z 18015KT 10SM FEW025 SCT140 SCT250 19/13 A2983 RMK AO2 SLP103 BCFG DSNT NW-N ALONG THE BERING SEA COAST T01940128

PACD 172253Z 17019KT 10SM FEW006 BKN016 BKN060 BKN130 17/14 A2979 RMK AO2 DZB19E25 SLP087 CIG LWR S-SW P0000 T01670144 $

King Cove:

PAVC 162356Z AUTO 11013KT 10SM CLR 18/13 A2987 RMK AO2 TSNO 58002 T01770133 10177 20144 SLP116 $

Port Heiden:

PAPH 172136Z AUTO 01006KT 10SM CLR 19/11 A2986 RMK AO1 PNO

PAPH 162356Z AUTO 34013KT 10SM CLR 18/09 A2989 RMK AO1 10180 20100 401800030 57010 PNO

False Pass:

PAKF 170101Z AUTO 18008KT 10SM OVC026 17/13 A2985 RMK AO2 SLPNO T01670133

Dutch Harbor:

PADU 172258Z 20006KT 10SM FEW008 BKN050 21/14 A2973 RMK AO2 SLP074 BP T02060144

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Definitely been a warm 8 days in the Aleutian Island chain as that ridge built over us. A few obs are below along with a weather summary so far. The records are highlighted in red and near records in pink.

Cold Bay:

PACD 170053Z 18015KT 10SM FEW025 SCT140 SCT250 19/13 A2983 RMK AO2 SLP103 BCFG DSNT NW-N ALONG THE BERING SEA COAST T01940128

PACD 172253Z 17019KT 10SM FEW006 BKN016 BKN060 BKN130 17/14 A2979 RMK AO2 DZB19E25 SLP087 CIG LWR S-SW P0000 T01670144 $

King Cove:

PAVC 162356Z AUTO 11013KT 10SM CLR 18/13 A2987 RMK AO2 TSNO 58002 T01770133 10177 20144 SLP116 $

Port Heiden:

PAPH 172136Z AUTO 01006KT 10SM CLR 19/11 A2986 RMK AO1 PNO

PAPH 162356Z AUTO 34013KT 10SM CLR 18/09 A2989 RMK AO1 10180 20100 401800030 57010 PNO

False Pass:

PAKF 170101Z AUTO 18008KT 10SM OVC026 17/13 A2985 RMK AO2 SLPNO T01670133

Dutch Harbor:

PADU 172258Z 20006KT 10SM FEW008 BKN050 21/14 A2973 RMK AO2 SLP074 BP T02060144

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Saw this on a co-workers facebook, but it looks as if Alaska is the only place in the northern hemisphere experiencing any baroclinic pain.

My link IR satellite

Gorgeous. Baroclinic bombs. I will disagree though, there is a fair bit of minor baroclinic pain going in Canada. Hudson Bay doom.

post-999-0-52572800-1313825445.gif

post-999-0-24310900-1313825459.gif

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Gorgeous. Baroclinic bombs. I will disagree though, there is a fair bit of minor baroclinic pain going in Canada. Hudson Bay doom.

Yeah, I meant to mention it in terms of areal coverage. Definitely the largest system out there

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Good evening everybody :pimp:!

I am new on american weather, and live in Whitehorse, Yukon Territory, Canada.

I have a weather website Meteowhitehorse and will try to let you posted about weather conditions in the Territory located just at the border with Alaska :wub:.

I am also working to set up a network of arctic and sub-arctic weather stations in Alaska, Canada and northern Europe.

I think that all winter lovers will appreciate :drunk:.

Sorry if my English is not perfect, I settled in Canada two years ago and I come from France.

If you visit my website and notice any mistake, if you have any idea or want to exchange links, just let me know !

Thank you,

Phil

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Good evening everybody :pimp:!

I am new on american weather, and live in Whitehorse, Yukon Territory, Canada.

I have a weather website Meteowhitehorse and will try to let you posted about weather conditions in the Territory located just at the border with Alaska :wub:.

I am also working to set up a network of arctic and sub-arctic weather stations in Alaska, Canada and northern Europe.

I think that all winter lovers will appreciate :drunk:.

Sorry if my English is not perfect, I settled in Canada two years ago and I come from France.

If you visit my website and notice any mistake, if you have any idea or want to exchange links, just let me know !

Thank you,

Phil

Welcome to the board! It's wonderful having a poster from Whitehorse.

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Thank you,

I also have a webcam and you can have links to some webcams in my area.

About the weather here, we are on the way to fall now, with our first freeze beginning of August.

It will soon by magic with all the colours from yellow, red and orange. A wonderful time which only lasts a couple of weeks.

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Thank you,I also have a <a href='http://meteowhitehorse.ca/webcammeteowhitehorse.jpg' class='bbc_url' title='External link' rel='external'>webcam</a> and you can have links to some webcams in my area.About the weather here, we are on the way to fall now, with our first freeze beginning of August.It will soon by magic with all the colours from yellow, red and orange. A wonderful time which only lasts a couple of weeks.

Welcome to the board....this section of the forum should get more active with posts in the winter. I try to keep up here at least once a week though, as do some friends of mine.

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Good morning everybody !

9.2C actually, overcast and windy.

The wind plays here an important factor, specially in winter. While Whitehorse is very close to the Pacific, our weather conditions are influenced by depressions coming from south,

We are however protected by mountain ranges, and a dry and mild wind is then blowing.

This explains why Whitehorse is not as cold as other cities located far east around 60N.

You can have some data about our climate and reports of the station.

About weather conditions in the territory, we have this morning at 5:00 between 2C in Carmacks and 10C in Watson lake.

About weather forecast, mainly cloudy, windy and 17C this afternoon.

Have a good day :)!

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Just what the Juneau area doesn't need....more heavy rain....that area has already experienced a prolonged period of intermittent flooding and the pattern definitely supports them getting "clocked" once again. Granted it's still a ways out there in the forecast range but the models have been persistent in showing this.

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Hello everybody,

As you mention, it, we definitely do not need more rain !

+1.0C this morning. Here, it is quite a cold spot for Whitehorse' area.

In the territory, temperatures are 1C in Carmacks, 3 in Arctic areas and Whitehorse, 4 in Dawson and Faro, 5 in Haines Junction, 8 in Old Crow and Teslin, and 9 in Watson Lake.

Today should be a quite sunny day, we will try to enjoy it :thumbsup:!

About the forecast for following days, temperatures should be cool, but we may have some "not so bad" days.

Have a good day !

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Welcome to the board MTBLANC. Good to have another poster here, it's hard for Patrick and I to keep the discussion going all the time.

Thank you NIUmetGF !

I will try to post as often as possible and share with you the weather in Yukon :santa:!

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Hello everybody,

Second frost of the month with -1.4C.

In the territory, temperatures vary at 5:00 between -2 in Haines Junction and +10 in Watson Lake.

The weather should be, as yesterday, mainly sunny in the morning, mainly cloudy in the afternoon.

Here is the link to my webcam, you should be able to see some haze, mainly over the riverbed at sunrise around 6:30-7:00.

http://meteowhitehor...owhitehorse.jpg

Have a great day acute.gif !

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Hello everybody,

Second frost of the month with -1.4C.

In the territory, temperatures vary at 5:00 between -2 in Haines Junction and +10 in Watson Lake.

The weather should be, as yesterday, mainly sunny in the morning, mainly cloudy in the afternoon.

Here is the link to my webcam, you should be able to see some haze, mainly over the riverbed at sunrise around 6:30-7:00.

http://meteowhitehor...owhitehorse.jpg

Have a great day acute.gif !

When is your normal first snowfall, and when does the snowpack actually begin to form?

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When is your normal first snowfall, and when does the snowpack actually begin to form?

At Whitehorse Airport it can snow every month apart July.

The most important snowfall in August was 8.6 cm on Aug. 22, 1974.

Usually snowpack starts to form mid October, last year it was mid November.

We however got 12 cm snowfall on Sept. 24 last year.

You can find all the reports for my new weather station here (reports) and here (WU).

About today, low of -1.8C and high of 16.1C. Sunny day, I would definitely sign for an autumn like this.

Have a great evening !

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At Whitehorse Airport it can snow every month apart July.

The most important snowfall in August was 8.6 cm on Aug. 22, 1974.

Usually snowpack starts to form mid October, last year it was mid November.

We however got 12 cm snowfall on Sept. 24 last year.

You can find all the reports for my new weather station here (reports) and here (WU).

About today, low of -1.8C and high of 16.1C. Sunny day, I would definitely sign for an autumn like this.

Have a great evening !

Welcome to the boards, I am glad to have a weather enthusiast from outside of the lower 48.

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Welcome to the boards, I am glad to have a weather enthusiast from outside of the lower 48.

Thank you :)!

For the amateurs of up 60N, we will soon open a page to track weather conditions in arctic and subartctic areas.

I will let you posted.

I already have some infos here for those who are passionate with cold.

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Hello everybody,

It is not so cold this morning with 6.6C.

It is however overcast and a bit windy with chance of rain showers for the afternoon and high of 15C.

Have a great day !

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