Thermal Trough? In Early May?

The map below is truly a masterpiece if you love warm temperatures, as we're about to enter one of the earliest heat waves in recent memory, and possibly one of the earliest of the past decade.

It's a little bit early to figure give exact temperatures but a range of low 20's at the beaches and upper 20's in the eastern Fraser Valley is completely acceptable in my books, as of now.

For the record, I think the all-time April temperature records at YVR (25C is VERY safe), and also the 29.8C for Abbotsford, since the warmest temperatures of this warm snap will fall on May 1st.

CMC model 2M temp output in (F) for the South Coast. A little conservative compared to the GFS/EURO

CMC model 2M temp output in (F) for the South Coast. A little conservative compared to the GFS/EURO

First, what's the source of this heat?

Wel above normal 850MB temps for the YVR area by the middle of this week. Truly amazing for end of Aprill

Wel above normal 850MB temps for the YVR area by the middle of this week. Truly amazing for end of Aprill

  • Upper level ridge will begin to build in later tonight which will produce moderate offshore gradients for the next 72 hours
  • 500MB heights will approach 570-575 for Thursday, showing significant warming in the upper levels
    • 850 Temps will be well above normal (up to 15C in fact
  • Marine Push will take place on Friday, knocking temperatures down by 4-6C
Current ensemble forecast on the position of the 582MB height, indicating a massive ridge forming off the West Coast

Current ensemble forecast on the position of the 582MB height, indicating a massive ridge forming off the West Coast

Tentative temperature forecast for Thursday (Warmest Day) for 5PM

Close to the beaches: 20-22C

Inland: 24-28C

Enjoy it, because more typical weather pattern will develop by the weekend, with some below normal temperatures. 

#50ShadesofVan