A Mainly rey & Drizzly Break Today..Round 3/3 Begins this Evening...March 13th

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  • Last night the second wave of moisture brought another heavy round of rain through the overnight. 42 hour totals are now over 100 mm for Vancouver Island & the Fraser Valley and 15-80 mm across metro Vancouver (yvr only 14 mm)
  • We are now in a bit of a break between systems although scattered showers and mainly grey skies continue. A flash of blue may reward the most diligent of blue sky watchers but that's probably all. 
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Ducks & flowers rejoice..

  • We are still very much in a pineapple express set-up, with that SE flow tapping into Hawaiian moisture & temps, but the moisture is coming in pulses..next one to move in this evening similar to what we say last night.
  • Rainfall warnings remain in place for metro Vancouver/Fraser Valley and have now been re-issued for west Van Island for the heavy rain that will redevelop this evening and continue right through our Thursday.
  • Additional amounts of 50 to 80 mm is forecast by Thursday night. For West Vancouver Island 100 to 120 mm is forecast by Thursday morning.
  • Freezing levels will reach their peak today before starting a slow decent over the next several days..but very soggy conditions for the local mountains and mountain passes. Avalanche risk is high across most of the province.
  • Finally, by early Friday, the stream is cut-off from the sub-tropical source and northwesterly winds will kick in ending the steady rain. However a cooler and unsettled Fri/Sat/Sun is still on tap ie sun/showers/cloud. Better chance of sun for Sunday & Monday.
  • Meanwhile an Arctic front has pushed down into the Central British Columbia interior this morning is clashing with the Pacific SW flow to produce heavy snowfall for the central interior ie Prince George. 20 to 30 cm or higher are forecast by Thursday evening

Elusive Pan-STARRS Comet

Canadian Arctic Glacier Melt Accelerating, Irreversible, Projections Suggest
  • Ongoing glacier loss in the Canadian high Arctic is accelerating and probably irreversible, new model projections suggest. 
  • The Canadian high Arctic is home to the largest clustering of glacier ice outside of Greenland and Antarctica -- 146,000 square kilometers of glacier ice spread across 36,000 islands.
  • http://www.sciencedaily.com/releases/2013/03/130312134914.htm

China plans first commercial trip through Arctic shortcut in 2013
  • The director general of the Polar Research Institute of China, told Reuters that the trip he led last year on the icebreaker Xuelong, or Snowdragon, to explore the route had "greatly encouraged" Chinese shipping companies.
  • "One commercial voyage by a Chinese shipping company may take place this summer," he said.
  • http://www.reuters.com/article/2013/03/12/shipping-china-idUSL6N0C4F9720130312

Also..
Looks like I've been called out on my over-zealous severe weather presentations on the Strombo show ;) ~4:15 min

Vancouver Weather

Monday

Chance of showers

16°C

Tuesday

Periods of rain

13°C

Wednesday

Chance of showers

15°C

Thursday

Sunny

18°C

Friday

A mix of sun and cloud

19°C