- Date
- Issued at
- 04:00 PDT/PST
- Created by
- Jon Snow
The Ridge is Here
A very strong ridge of high pressure will make its presence known beginning today. It'll be the first significant ridge of high pressure of the season. This means that conditions will remain dry and freezing levels will begin to rise rapidly. Pacific weather systems are thus directed to the Alaskan Panhandle and southern Yukon with snow or rain today.
The ridge will flatten towards the weekend but will keep southern B.C. warm and dry with valley temperatures rising to the high 20 and low 30 degree Celsius. Northern and central B.C will see more cloud cover and perhaps isolated showers.
The ridge breaks down late Sunday. Temperatures will remain above seasonal for the start of the work week but less so compared to this weekend.
The 500mb loop best tells the story for the next several days. An upper ridge of high pressure builds today with 1000-500mb thickness lines (dashed lines) rising through Saturday before beginning its descent on Sunday. The 564dam dashed line reaching as far north as the Cariboo on Friday and Saturday. The thermal ridge axis moves into the Kootenays on Sunday as several weak upper shortwave troughs move across central B.C.