• Hello, please take a minute to check out our awesome content, contributed by the wonderful members of our community. We hope you'll add your own thoughts and opinions by making a free account!

Ostrich December

Ollie Williams said:
The end of the EPS was great!View attachment 54720
Although our three day mean at the end of the run was just meh.
View attachment 54723
Click to expand...

Lol figures, gonna take some time for Canada to rebuild its snow cover after getting annihilated the next few weeks by the Pacific jet. Also, as mentioned previously, these polar vortex patterns earlier in the winter are usually at a disadvantage compared to ones in mid-late winter. Even though for example our climo temps are similar in February as they are in December, more expansive snow and ice cover/volume in the N hem + cooler SSTs as the winter progresses allows for late Jan/Feb +TNHs like this to be cooler than their December counterparts all else considered, even though the temp averages are the same. (I.e. arctic air masses usually start out cooler and modify less quickly in Jan & early-mid Feb vs Dec). There's also a 1+ week lag effect that allows for late January/early February arctic air masses to be more potent because when they start out over the arctic it's ~mid-January, while ones like this in early-mid December start in the source regions in late Nov/early December when it's warmer in the means. It's also one of the main reasons why our snowfall climo actually lags temperature. Temps here in the SE US are typically at their coolest in early-mid January, but our snowfall climo peaks in late January.

Peculiarities like this in the annual cycle are important to keep in mind in order to understand possible nuances in a given pattern
 
You must log in or register to reply here.
Back
Top