21 Sep 2020

September 21, 2020

     PAST WEEK:

      Monday September 14, 2020. 12:00 Hrs. + 8 with a 5-10 KPH WNW breeze. + 15 at 660 meters.

      Satellite image from same timeframe as above image.

      Tuesday September 15, 2020. 12:00 Hrs. + 9 with a 5-10 KPH WNW wind. + 15 in the valley.

      Satellite image from same timeframe as above image.

      Wednesday September 16, 2020. 12:00 Hrs. + 15 with a 5-10 KPH North Breeze. + 20 at 660 m.

      Satellite image from the same timeframe as above image.

      Thursday September 17, 2020. 13:00 Hrs. + 16 with a 5-10 KPH NNE Breeze. + 19 in the valley.

      Satellite image from same timeframe as above image. Still smokey.

      Friday September 18, 2020. 12:00 Hrs. + 13 with a 5-10 KPH NNE breeze. + 14 in the valley.

      Satellite image from the same timeframe as above image. Smoke & Cloud over Whistler!!

     Saturday September 19, 2020. + 8 with a 15-25 KPH SW wind. + 14 in the valley.

     Satellite image from the same timeframe as above image.

     Sunday September 20, 2020. 12:00 Hrs. + 7 with a 10-25 KPH SW wind. + 16 in the valley.

     Satellite image form the same timeframe as above image.



Weather Observations for September 21, 2020 taken at 06:00 Hours.

2180 meters     +3, Winds were 20-25 KPH S--Whistler Peak
1835 meters     +5, Winds were   5-15 KPH SE--Round House
1650 meters     +3, 0.0 mm of rain, 0.0 mm in 24 hrs. --Pig Alley
 660 meters.     +7, Max temp yesterday was + 17.9, 0.2 mm recorded yesterday.



      Sunrise 06:57 Hrs this am. Broken cloud and unlimited visibility.


FORECAST:

A weak upper ridge which brought some sunny breaks Sunday will be replaced by a weak upper trough today in a Southwesterly flow aloft. Air quality in Whistler is back down to 1. Looking like a moist week ahead with an unsettled Monday to start the week off.  Mostly overcast skies and the occasional sunny break. Tuesday is looking overcast with some light precipitation as a moist warm front pushes through. A vigorous wet windy cold front arrives Tuesday night into Wednesday with rain. Thursday in to Saturday will see a series of frontal bands push through with a drying trend by Sunday. High pressure rebuilds by next Monday hopefully, some models are suggesting more wet weather. Guesstimates: 0 mm by Tuesday am, 5-10 mm by Wednesday am, 30-50 mm by Thursday am, 5-10 mm by Friday am, 10-25 mm by Saturday am, 10-20 mm by Sunday am.

     GOES IR image from this am.



     Low will slide down the coast today with mostly cloudy weather and some showers.





      Fronts along the coast.

     Low continues to grow and move South.






     Low keeps growing.



     Low weakens on Thursday with less precipitation for Thursday.






      Low still affecting South Coast on Saturday.

      On the edge for Sunday but still a chance of some showers.



     AVALANCHE ACTIVITY:

     New Zealand Avalanche Advisory




      OBSERVATIONS & INFORMATION:

      Monday afternoon. Sept 14. 15:00 Hrs. + 8 with a 15-25 KPH South wind.

      Smoke from fires on the US West Coast reached Southern Ontario.

      Tuesday sunrise 06:48 Hrs. + 8. Broad upper trough helping a bit with air quality!!
 

      From the West Coast to the Great Lakes and beyond!!!.

      Sunrise Wednesday 06:50 Hrs. Smoke. + 10.

      Wednesday noon.

      Same time frame as above image.

      Thursday sunrise 06:51 Hrs. + 13 at 1835 m. Smoke is lingering.

     Smoke still swirling around in the Pacific.

      Different perspective of how much smoke there is.

      Friday sunrise was at 06:53 Hrs. +11 Deg C.

      Saturday sunrise, 06:54 Hrs. + 7 with 2 mm of precip recorded at 1650 m. Upper trough > East.

     Sunday sunrise 06:56 Hrs. + 5. Air quality looks better.  5.9 mm recorded ar 660 m Saturday.

      Lake Simcoe Sunday evening.




ARTICLES:

Avalanche Canada preparing for uncertainty: Powder Canada

Ice Climbing for beginners--Avalanche Beacons and Recco Tech: Gripped

Avalanche warnings for six South Island Peaks: New Zealand

Season Prep and the "Wicked" nature of Backcountry Skiing: Wild Snow

BlueBird Backcountry to open without reservations: Powder

Smoke from West Coast reaches East Coast: USA Today

Smoke reaches Europe: CNN

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