Alaska/Western Canada obs and discussion

[patrick7032]

Looks like a nice "blocky" pattern may set up over the Bering Sea. Decent high amplitude pattern looks to "flatten out" somewhat next week.

[patrick7032]

Looks like a nice "blocky" pattern may set up over the Bering Sea. Decent high amplitude pattern looks to "flatten out" somewhat next week.

[MTBLANC]

Good morining everybody,

Thanks Patrick for your interesting posts !

6.2C this morning, and 3.8 mm rain since yesterday evening.

Temperatures from -1 (Dawson) to 11C (Watson Lake) in the territory at 5:00am.

Today should see rain showers, but the weekend should be sunny and mild.

Have a great one !

[NIUmetGF]

Pretty boring disco today....

FXAK68 PAFC 101252 AFDAFC SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION NATIONAL WEATHER SERVICE ANCHORAGE AK 500 AM AKDT SAT SEP 10 2011 .ANALYSIS AND UPPER LEVELS... COMPLEX SPLIT UPPER FLOW PATTERN EXISTS TODAY WITH EMBEDDED DISTURBANCES IN THE WESTERLIES OVER THE NORTHERN TWO-THIRDS OF THE STATE. LINGERING HIGH AMPLITUDE TROUGH THAT BROUGHT CLIMATOLOGICALLY COOL AND WET WEATHER TO MUCH OF SOUTHERN ALASKA CONTINUES TO GET PINCHED OFF AS RIDGING BUILDS ACROSS THE ALEUTIANS AHEAD OF THE NEXT DISTURBANCE. AN EMBEDDED SHORT-WAVE TROUGH BRINGS THE THREAT OF RAIN TO THE KUSKOKWIM DELTA REGION THIS MORNING. AT THE SURFACE...RIDGING BUILDING WESTWARD ACROSS THE NORTHERN GULF OF ALASKA. .MODEL DISCUSSION... MODEL GUIDANCE IS IN GOOD AGREEMENT SYNOPTICALLY FOR THE SHORT TERM AS AN UPPER LEVEL LOW DEVELOPS FROM KAMCHATKA PENINSULA AND EAST THIS WEEKEND. MODELS ALL SIMILAR WITH A MID-970MB LOW IN THE NORTHWEST BERING SEA. A WEAKENING SURFACE LOW WILL MOVE INTO THE GULF OF ALASKA BY EARLY MONDAY MORNING IN THE LOW 990MB RANGE. AS THE UPPER LEVEL JET PUSHES SOUTH OF THE ALEUTIANS AN ELONGATED TROUGH WILL STRETCH FROM EAST ASIA THROUGH THE CENTRAL ALEUTIANS WITH AN EXTENSION INTO THE GULF OF ALASKA. .SHORT TERM FORECAST... SOUTHCENTRAL ALASKA...CONSIDERABLY DRIER WEATHER FOR MUCH OF THE AREA WITH RELATIVELY WEAK FLOW ALOFT. PARTLY CLOUDY TO PARTLY CLEAR CONDITIONS WILL EXIST. DRY CONDITIONS LOOK TO CONTINUE THROUGH THE WEEKEND UNTIL AN UPPER LEVEL DISTURBANCE PUSHES INTO THE GULF BRINGING RAIN TO MAINLY COASTAL AREAS EARLY NEXT WEEK. SOUTHWEST ALASKA...A WEAKENING SHORT-WAVE TROUGH MOVING ONSHORE IN THE YUKON DELTA REGION BRINGS AREAS OF RAIN TO THE KUSKOKWIM DELTA IN THE MORNING AND MOVING INTO THE KUSKOKWIM VALLEY/MTS FOR THE AFTERNOON. GENERALLY CLOUDY CONDITIONS WILL CONTINUE FOR MUCH OF THE SOUTHWEST INTERIOR AND BRISTOL BAY REGIONS. BERING SEA AND ALEUTIANS...UPPER LEVEL DISTURBANCE AND ASSOCIATED FRONT PUSH ACROSS THE CHAIN FROM WEST TO EAST BRINGING PERIODS OF RAIN AND GUSTY SOUTHERLY WINDS THIS WEEKEND. .LONG TERM FORECAST... FOR THE EXTENDED PERIOD A BROAD UPPER LEVEL LOW WILL BE ANCHORED OVER THE BERING SEA BRINGING GENERALLY CLOUDY CONDITIONS WITH RAIN SHOWERS. AS DISTURBANCES ROTATE AROUND THE FRINGE OF THIS TROUGH PERIODS OF UNSETTLED WEATHER CAN BE EXPECTED FOR COASTAL REGIONS OF THE SOUTH CENTRAL AND THE GULF OF ALASKA. .AER/ALU...WATCH/WARNING SUMMARY PUBLIC...NONE MARINE...132 150 170 172 179 180 185 FIRE WEATHER...NONE MTL SEP 11

[baroclinic_instability]

Pretty boring disco today....

FXAK68 PAFC 101252 AFDAFC SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION NATIONAL WEATHER SERVICE ANCHORAGE AK 500 AM AKDT SAT SEP 10 2011 .ANALYSIS AND UPPER LEVELS... COMPLEX SPLIT UPPER FLOW PATTERN EXISTS TODAY WITH EMBEDDED DISTURBANCES IN THE WESTERLIES OVER THE NORTHERN TWO-THIRDS OF THE STATE. LINGERING HIGH AMPLITUDE TROUGH THAT BROUGHT CLIMATOLOGICALLY COOL AND WET WEATHER TO MUCH OF SOUTHERN ALASKA CONTINUES TO GET PINCHED OFF AS RIDGING BUILDS ACROSS THE ALEUTIANS AHEAD OF THE NEXT DISTURBANCE. AN EMBEDDED SHORT-WAVE TROUGH BRINGS THE THREAT OF RAIN TO THE KUSKOKWIM DELTA REGION THIS MORNING. AT THE SURFACE...RIDGING BUILDING WESTWARD ACROSS THE NORTHERN GULF OF ALASKA. .MODEL DISCUSSION... MODEL GUIDANCE IS IN GOOD AGREEMENT SYNOPTICALLY FOR THE SHORT TERM AS AN UPPER LEVEL LOW DEVELOPS FROM KAMCHATKA PENINSULA AND EAST THIS WEEKEND. MODELS ALL SIMILAR WITH A MID-970MB LOW IN THE NORTHWEST BERING SEA. A WEAKENING SURFACE LOW WILL MOVE INTO THE GULF OF ALASKA BY EARLY MONDAY MORNING IN THE LOW 990MB RANGE. AS THE UPPER LEVEL JET PUSHES SOUTH OF THE ALEUTIANS AN ELONGATED TROUGH WILL STRETCH FROM EAST ASIA THROUGH THE CENTRAL ALEUTIANS WITH AN EXTENSION INTO THE GULF OF ALASKA. .SHORT TERM FORECAST... SOUTHCENTRAL ALASKA...CONSIDERABLY DRIER WEATHER FOR MUCH OF THE AREA WITH RELATIVELY WEAK FLOW ALOFT. PARTLY CLOUDY TO PARTLY CLEAR CONDITIONS WILL EXIST. DRY CONDITIONS LOOK TO CONTINUE THROUGH THE WEEKEND UNTIL AN UPPER LEVEL DISTURBANCE PUSHES INTO THE GULF BRINGING RAIN TO MAINLY COASTAL AREAS EARLY NEXT WEEK. SOUTHWEST ALASKA...A WEAKENING SHORT-WAVE TROUGH MOVING ONSHORE IN THE YUKON DELTA REGION BRINGS AREAS OF RAIN TO THE KUSKOKWIM DELTA IN THE MORNING AND MOVING INTO THE KUSKOKWIM VALLEY/MTS FOR THE AFTERNOON. GENERALLY CLOUDY CONDITIONS WILL CONTINUE FOR MUCH OF THE SOUTHWEST INTERIOR AND BRISTOL BAY REGIONS. BERING SEA AND ALEUTIANS...UPPER LEVEL DISTURBANCE AND ASSOCIATED FRONT PUSH ACROSS THE CHAIN FROM WEST TO EAST BRINGING PERIODS OF RAIN AND GUSTY SOUTHERLY WINDS THIS WEEKEND. .LONG TERM FORECAST... FOR THE EXTENDED PERIOD A BROAD UPPER LEVEL LOW WILL BE ANCHORED OVER THE BERING SEA BRINGING GENERALLY CLOUDY CONDITIONS WITH RAIN SHOWERS. AS DISTURBANCES ROTATE AROUND THE FRINGE OF THIS TROUGH PERIODS OF UNSETTLED WEATHER CAN BE EXPECTED FOR COASTAL REGIONS OF THE SOUTH CENTRAL AND THE GULF OF ALASKA. .AER/ALU...WATCH/WARNING SUMMARY PUBLIC...NONE MARINE...132 150 170 172 179 180 185 FIRE WEATHER...NONE MTL SEP 11

If you use COD text it will remain formatted.

240

FXAK68 PAFC 101252

AFDAFC

SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION

NATIONAL WEATHER SERVICE ANCHORAGE AK

500 AM AKDT SAT SEP 10 2011

ANALYSIS AND UPPER LEVELS

COMPLEX SPLIT UPPER FLOW PATTERN EXISTS TODAY WITH EMBEDDED

DISTURBANCES IN THE WESTERLIES OVER THE NORTHERN TWO-THIRDS OF THE

STATE. LINGERING HIGH AMPLITUDE TROUGH THAT BROUGHT CLIMATOLOGICALLY

COOL AND WET WEATHER TO MUCH OF SOUTHERN ALASKA CONTINUES TO GET

PINCHED OFF AS RIDGING BUILDS ACROSS THE ALEUTIANS AHEAD OF THE NEXT

DISTURBANCE. AN EMBEDDED SHORT-WAVE TROUGH BRINGS THE THREAT OF RAIN

TO THE KUSKOKWIM DELTA REGION THIS MORNING. AT THE SURFACE...RIDGING

BUILDING WESTWARD ACROSS THE NORTHERN GULF OF ALASKA.

MODEL DISCUSSION

MODEL GUIDANCE IS IN GOOD AGREEMENT SYNOPTICALLY FOR THE SHORT TERM

AS AN UPPER LEVEL LOW DEVELOPS FROM KAMCHATKA PENINSULA AND EAST THIS

WEEKEND. MODELS ALL SIMILAR WITH A MID-970MB LOW IN THE NORTHWEST

BERING SEA. A WEAKENING SURFACE LOW WILL MOVE INTO THE GULF OF ALASKA

BY EARLY MONDAY MORNING IN THE LOW 990MB RANGE. AS THE UPPER LEVEL

JET PUSHES SOUTH OF THE ALEUTIANS AN ELONGATED TROUGH WILL STRETCH

FROM EAST ASIA THROUGH THE CENTRAL ALEUTIANS WITH AN EXTENSION INTO

THE GULF OF ALASKA.

SHORT TERM FORECAST

SOUTHCENTRAL ALASKA...CONSIDERABLY DRIER WEATHER FOR MUCH OF THE AREA

WITH RELATIVELY WEAK FLOW ALOFT. PARTLY CLOUDY TO PARTLY CLEAR

CONDITIONS WILL EXIST. DRY CONDITIONS LOOK TO CONTINUE THROUGH THE

WEEKEND UNTIL AN UPPER LEVEL DISTURBANCE PUSHES INTO THE GULF

BRINGING RAIN TO MAINLY COASTAL AREAS EARLY NEXT WEEK.

SOUTHWEST ALASKA...A WEAKENING SHORT-WAVE TROUGH MOVING ONSHORE IN

THE YUKON DELTA REGION BRINGS AREAS OF RAIN TO THE KUSKOKWIM DELTA IN

THE MORNING AND MOVING INTO THE KUSKOKWIM VALLEY/MTS FOR THE

AFTERNOON. GENERALLY CLOUDY CONDITIONS WILL CONTINUE FOR MUCH OF THE

SOUTHWEST INTERIOR AND BRISTOL BAY REGIONS.

BERING SEA AND ALEUTIANS...UPPER LEVEL DISTURBANCE AND ASSOCIATED

FRONT PUSH ACROSS THE CHAIN FROM WEST TO EAST BRINGING PERIODS OF

RAIN AND GUSTY SOUTHERLY WINDS THIS WEEKEND.

LONG TERM FORECAST

FOR THE EXTENDED PERIOD A BROAD UPPER LEVEL LOW WILL BE ANCHORED OVER

THE BERING SEA BRINGING GENERALLY CLOUDY CONDITIONS WITH RAIN

SHOWERS. AS DISTURBANCES ROTATE AROUND THE FRINGE OF THIS TROUGH

PERIODS OF UNSETTLED WEATHER CAN BE EXPECTED FOR COASTAL REGIONS OF

THE SOUTH CENTRAL AND THE GULF OF ALASKA.

AER/ALU

WATCH/WARNING SUMMARY

PUBLIC...NONE

MARINE...132 150 170 172 179 180 185

FIRE WEATHER...NONE

MTL SEP 11

[patrick7032]

Good morining everybody,

Thanks Patrick for your interesting posts !

6.2C this morning, and 3.8 mm rain since yesterday evening.

Temperatures from -1 (Dawson) to 11C (Watson Lake) in the territory at 5:00am.

Today should see rain showers, but the weekend should be sunny and mild.

Have a great one !

Your welcome MT....I attached the precip and relative humidity images for your area....and this mornings IRsat imagery/obs....looks like you should have a sunny and dry weekend....

[MTBLANC]

Thank you !

I confirm, -2.1C this morning, blue sky and that will be like this for tomorrow too with highs of 15C !

[patrick7032]

Unusual event for this area, but I talked to another forecaster and flight services....and will post the images later....but we actually had a differential land/lake breeze wall cloud form that lasted for 5 to 10 mins before inducing a cone shaped COLD AIR FUNNEL....after conferring with someone from two other offices and reviewing the web cam images (although much better in person as expected) I issued a FC ob....there was no threat to anyone or any aircraft but because it was within my 10 mile zone for reporting the SPECI was issued. The obs are below.

PACD 101650Z 00000KT 10SM OVC019 08/07 A3021 RMK FUNNEL CLOUD B43 FUNNEL CLOUD E49 AO2 COLD AIR FUNNEL DISSIPATED

PACD 101644Z 00000KT 10SM FC OVC019 08/07 A3021 RMK FUNNEL CLOUD B43 AO2 COLD AIR FUNNEL E

[NIUmetGF]

Good to know. I didn't know it was gonna scrap the formatting until I posted it.

If you use COD text it will remain formatted.

[NIUmetGF]

Here's some remarks you don't see too often... from Fairbanks

PAFA 110353Z COR 16003KT 6SM -RA BR SCT013 BKN040 OVC055 08/07 A3015 RMK AO2 SLP217 OCNL WATERFOWL ALQDS P0001 T00780067

[patrick7032]

Unusual event for this area, but I talked to another forecaster and flight services....and will post the images later....but we actually had a differential land/lake breeze wall cloud form that lasted for 5 to 10 mins before inducing a cone shaped COLD AIR FUNNEL....after conferring with someone from two other offices and reviewing the web cam images (although much better in person as expected) I issued a FC ob....there was no threat to anyone or any aircraft but because it was within my 10 mile zone for reporting the SPECI was issued. The obs are below.

PACD 101650Z 00000KT 10SM OVC019 08/07 A3021 RMK FUNNEL CLOUD B43 FUNNEL CLOUD E49 AO2 COLD AIR FUNNEL DISSIPATED

PACD 101644Z 00000KT 10SM FC OVC019 08/07 A3021 RMK FUNNEL CLOUD B43 AO2 COLD AIR FUNNEL E

Now it did get much better developed....wall formed then after 10 minutes funnel formed snow cone wedge funnel with 2 flanges mid level pointing 45 deg vertical....imagine sticking an arrow head (old metal one - cowboy days arrow) through an ice cream cone and having the edges poke out mid way...unfortunately I didn't even thing of grabbing my camera phone as I was too busy coordinating with the lead forecaster and flight services while maintaining a visual, and the web cam loop didn't update until I got off shift, but it did get twice as developed as it was in the second picture. The cloud was also stationary where as the others were moving north in the background. It developed on a lake/land breeze....and land over east side of bay had MIFG added into to the mesoscale baroclinicity...and then a long-lived meso vort was just 50 miles s of me which may have added a little sfc vorticity............

[MTBLANC]

Good morning,

Today, low of -3.1C, down to -6 in Burwash.

Yesterday we did a 15 kms hike in the area to have a look at the magic fall colours.

Here are some of the pictures I took:

The other pictures can be found here: http://meteowhitehor...bumFall2011.php.

For today, the weather should be sunny with highs of 13/15C.

Have a good day !

[k***]

I really like this thread. Good work everyone.

[baroclinic_instability]

Nice classic marine occlusion and dry swirl in the GOA.

[Mogget]

Wow, GREAT thread. Wonderful pix; all very exotic compared to the Boring Forty-Eight. Thanks to all who contribute!!

[#NoPoles]

really? places like this actually exist? i think i have fallen in love!!! thank you for sharing

Good morning,

Today, low of -3.1C, down to -6 in Burwash.

Yesterday we did a 15 kms hike in the area to have a look at the magic fall colours.

Here are some of the pictures I took:

The other pictures can be found here: http://meteowhitehor...bumFall2011.php.

For today, the weather should be sunny with highs of 13/15C.

Have a good day !

[kab2791]

Agreed, amazing how deep blue that lake in the middle picture is.

really? places like this actually exist? i think i have fallen in love!!! thank you for sharing

[Chicago WX]

really? places like this actually exist? i think i have fallen in love!!! thank you for sharing

Those photos (and locations) are amazing. I think I might have to consider moving.

[SpartyOn]

Ill be frequenting this thread on a regular basis..

[baroclinic_instability]

Good morning,

Today, low of -3.1C, down to -6 in Burwash.

Yesterday we did a 15 kms hike in the area to have a look at the magic fall colours.

Here are some of the pictures I took:

The other pictures can be found here: http://meteowhitehor...bumFall2011.php.

For today, the weather should be sunny with highs of 13/15C.

Have a good day !

MtBlanc, I am glad to have you here on the forums. The first picture is absolutely stunning and gorgeous.

[NIUmetGF]

The 00z NAM run from last evening showed the dynamic tropopause (1.5 potential vorticity surface) on the "cinnabun low" all the way down to 936 millibars. One heckuva stratospheric intrusion. The upper low is what is left of last weeks high amplitude trough after being pinched off by ridging to the northeast and the incoming WAA across the Aleutians.

I couldn't get a X-section from the ETA but the GFS shows the gist of it quite well....

[NIUmetGF]

A little bit more going on in the next week

617

FXAK68 PAFC 121149

AFDAFC

SOUTHCENTRAL AND SOUTHWEST ALASKA FORECAST DISCUSSION

NATIONAL WEATHER SERVICE ANCHORAGE AK

500 AM AKDT MON SEP 12 2011

ANALYSIS AND UPPER LEVELS

UPPER LEVEL PATTERN FEATURES A LARGE BROAD TROUGH CENTERED NORTHEAST

OF THE KAMCHATKA PENINSULA STRETCHING SOUTHEASTWARD ACROSS THE BERING

AND ALEUTIANS. AN UPPER RIDGE STRETCHES FROM THE PANHANDLE THROUGH

THE CHUKCHI SEA. A LARGE UPPER LOW SPAWNING FROM THE PINCHED OFF

REMNANTS OF LAST WEEKS HIGH AMPLITUDE TROUGH CHURNS NORTHWARD INTO

THE GULF OF ALASKA AND IS BEGINNING TO PHASE WITH LARGER TROUGH TO

THE WEST. THE INTERACTION OF THESE FEATURES WILL BE THE FOCUS FOR

WEATHER ACROSS THE SOUTHERN GREAT LAND FOR THE SHORT TERM.

AT THE SURFACE...EACH OF THE UPPER LEVEL FEATURES SPORTS A SURFACE

REFLECTION...A BROAD LOW PRESSURE COVERING MOST OF THE BERING SEA

WITH OCCLUDED/COLD FRONT FROM SAINT PAUL ISLAND INTO THE NORTH

CENTRAL PACIFIC. A UPPER 980MB LOW MOVES INTO THE GULF OF ALASKA

BRINGING RAIN TO THE SOUTHERN MAINLAND. A SURFACE RIDGE STRETCHES

FROM NORTHWEST TERRITORIES INTO THE CENTRAL INTERIOR.

MODEL DISCUSSION

GUIDANCE IN RELATIVELY GOOD AGREEMENT WITH THE UPPER LEVEL SYNOPTIC

FEATURES THROUGH THE SHORT TERM. THE GULF UPPER LOW WILL BECOME AN

OPEN WAVE AND PHASE WITH THE BERING SEA TROUGH MOVING NORTHWARD INTO

THE INTERIOR. THE LARGE UPPER LOW OVER KAMCHATKA WILL DRIFT OVER THE

CENTRAL BERING BY MIDWEEK WITH A TROUGH EXTENDING ACROSS THE AKPEN

INTO THE GULF OF ALASKA. THE SURFACE LOW IN THE GULF WILL ASSIMILATE

INTO THE BROAD AREA OF TROUGHING FROM BRISTOL BAY TO THE AKPEN.

DETAILS BECOME MUDDLED AFTER MIDWEEK FOR THE EXTENDED FORECAST BUT

GUIDANCE AND DEVELOPING PATTERN SUGGESTS A BROAD UPPER LOW OVER THE

BERING WITH EMBEDDED BAROCLINIC DISTURBANCES IN THE FASTER WESTERLY

FLOW SOUTH OF THE ALEUTIAN CHAIN MAKING FOR AN ACTIVE WEEK.

SHORT TERM FORECAST

SOUTHCENTRAL ALASKA...INCREASING CLOUDINESS AND RAIN SPREADING

NORTHWARD INTO THE INTERIOR AS THE GULF OF ALASKA LOW MOVES

NORTHWARD. COASTAL AREAS WILL SEE THE BRUNT OF THE PRECIPITATION

WHILE SHOWERS WILL BECOME DOMINANT ON THE NORTH SIDE OF THE CHUGACH.

SOUTHWEST ALASKA...INCREASING CLOUDS FROM THE AKPEN THROUGH THE YUKON

DELTA. CHANCE FOR RAIN INCREASES THROUGHOUT THE DAY FOR THE BRISTOL

BAY AREA SPREADING NORTHWARD TO THE KUSKOKWIM DELTA REGION BY THE

AFTERNOON.

BERING SEA AND ALEUTIANS...GUSTY SOUTHERLY WINDS WILL BEGIN TO

SLACKEN THIS MORNING. AREAS OF LOW CLOUDS AND FOG WILL PERSIST ACROSS

THE CENTRAL BERING. RAIN WILL CONTINUE MAINLY FOR THE EASTERN

ALEUTIANS AND BRISTOL BAY REGIONS. THE NEXT SYSTEM WILL BEGIN TO MOVE

INTO THE WESTERN ALEUTIANS BY EARLY TUESDAY MORNING.

LONG TERM FORECAST

BY LATE WEEK THE UPPER LEVEL PATTERN WILL FEATURE A BROAD UPPER LEVEL

LOW PRESSURE CENTERED IN THE VICINITY OF THE PRIBILOF ISLANDS

ENCOMPASSING MUCH OF THE BERING SEA. THE ENHANCED WESTERLIES TO THE

SOUTH OF THE TROUGH WILL HARBOR DIFFICULT TO TIME DISTURBANCES MOVING

FROM THE ALEUTIANS INTO THE GULF OF ALASKA. DETAILS OF THE FORECAST

WILL BECOME CLEARER WITH TIME BUT THE ACTIVE WEATHER FOR SOUTHERN

ALASKA LOOKS TO CONTINUE.

AER/ALU

WATCH/WARNING SUMMARY

PUBLIC...

MARINE...

FIRE WEATHER...

MTL SEP 11

[MTBLANC]

Thank you for your comments !

You are very welcome to visit the place ...

Low of -3.1C today, we would have been lower but we have now some clouds.

Temperatures\are sitting between -4 and 0 in the territory, a bit higher up north.

Highs expect to be around 17C here in Whitehorse.

Here are some pictures I took yesterday in the valley. Less amazing, but still beautiful:

I have other pictures there: http://meteowhitehor...bumFall2011.php

Have a good day !

[patrick7032]

Some pics from Cold Bay....

[baroclinic_instability]

Some pics from Cold Bay....

That second pic is stunning, is that the top elevation on Cold Bay?

[baroclinic_instability]

The 00z NAM run from last evening showed the dynamic tropopause (1.5 potential vorticity surface) on the "cinnabun low" all the way down to 936 millibars. One heckuva stratospheric intrusion. The upper low is what is left of last weeks high amplitude trough after being pinched off by ridging to the northeast and the incoming WAA across the Aleutians.

I couldn't get a X-section from the ETA but the GFS shows the gist of it quite well....

That is awesome, it is nice seeing the PVU surface. It was a pretty classic marine occlusion/dry swirl in that the vertical isentropic mass ascent was directly into the center of the low in response to the upper PV and the mass wind fields it supported (the divergent jet max). Pretty awesome.

[MTBLANC]

Some pics from Cold Bay....

Beautiful Patrick,

I never saw the first animals, what is it?

I also notice that fall colours are not here yet.

Today, low of -3.3C, high of +18.8C, a difference of 22.1C, with sun and some wind blowing from south.

Forecast for following days: mix of sun and clouds, cooler temperatures, some rain possible on wednesday.

Have a great evening

[beavis1729]

They're dancing in the streets in Barrow

PUBLIC INFORMATION STATEMENT

NATIONAL WEATHER SERVICE FAIRBANKS AK

240 PM AKDT MON SEP 12 2011

THE TEMPERATURE AT BARROW...THE NORTHERNMOST CITY IN ALASKA...

HAS NOT BEEN BELOW FREEZING...32 DEGREES...SINCE JUNE 29TH. THIS

74 DAY STREAK IS BY FAR THE MOST CONSECUTIVE DAYS THAT BARROW HAS

EVER HAD WITHOUT THE TEMPERATURE DROPPING BELOW FREEZING. THE

PREVIOUS RECORD OF 68 DAYS WAS SET TWO YEARS AGO.

THE TEMPERATURE IS NOT EXPECTED TO GO BELOW FREEZING AT BARROW FOR

AT LEAST A FEW MORE DAYS.

[#NoPoles]

They're dancing in the streets in Barrow

PUBLIC INFORMATION STATEMENT

NATIONAL WEATHER SERVICE FAIRBANKS AK

240 PM AKDT MON SEP 12 2011

THE TEMPERATURE AT BARROW...THE NORTHERNMOST CITY IN ALASKA...

HAS NOT BEEN BELOW FREEZING...32 DEGREES...SINCE JUNE 29TH. THIS

74 DAY STREAK IS BY FAR THE MOST CONSECUTIVE DAYS THAT BARROW HAS

EVER HAD WITHOUT THE TEMPERATURE DROPPING BELOW FREEZING. THE

PREVIOUS RECORD OF 68 DAYS WAS SET TWO YEARS AGO.

THE TEMPERATURE IS NOT EXPECTED TO GO BELOW FREEZING AT BARROW FOR

AT LEAST A FEW MORE DAYS.

it's even warm enough for them to dance sans clothes...

[#NoPoles]

'tis the season...i saw a few pages back that you are losing about 5mins of daylight, each day...here, in the lower 48, latitude 42N- last night the sunset for the final time after 7pm...until next March...sunset tonight was 6:58pm...