Fall Storm Update (and... a picture of the coolest flowers!)

The first fall storm (really, all of September is considered fall in the meteorological world) of the 2013/2014 storm season for BC.

Winds south of Haida Gwaii will approach storm force intensity (greater than 50 knots), Thursday and ease Thursday evening, while winds in the Georgia Basin will pick up in the evening, especially in the northern half.

Environment Canada has already issued a wind warning with up to 100km/hr winds for Haida Gwaii for Thursday, and 90km/hr for the North Coast.

Models vary the exact pressure of the deepening low, but 975 millibars is the current best estimate. 

 

UW GFS wind model: Strongest winds outlined in Red

UW GFS wind model: Strongest winds outlined in Red

Vancouver will hardly notice the winds, as the low is too far northwest to have the tight isobars (lines of constant pressure), over southern Vancouver Island. The strongest winds will stay well offshore.

UW NAM 3 hr precipitation forecast valid 5pm PST Friday.

UW NAM 3 hr precipitation forecast valid 5pm PST Friday.

Rains are looking to be heaviest for Vancouver Friday evening (5-8pm), with up to 15mm+ falling with the associated cold front sweeping down the coast.

Tomorrow should be the warmest day over the next seven, so get out and enjoy the sunshine! It might be the last time you can see the blue-sky sprites  in the sky for a while, which I outlined in an earlier post.  

Looking at the long range models, just a heads up, Sunday is looking to be very wet with another gusty front pushing through.

Be prepared for a wet one, Vancouver! 

I want to take this time to thank everyone for reading my blog. #50shadesofVan has been live for about a week and I've had great feedback about this project.  

Sincerely, 

 

#50shadesofVan

 

Have you heard of ice flowers?

I hadn't until last week.

They're effectively conglomerates of ice crystals no more than a few centimeters high. Large temperature differences between the air and sea surface temperature cause the ice flower to form on the freshly formed sea ice. The minimum temperature difference between the air and water has be greater than 20°C for the ice flowers to blossom.   

 

ICE flowers.jpg