All four seasons in one week

We were just about 10 degrees above normal on Wednesday. Normal is 11 and the daytime high was 20. The warm air will stick around for Thursday. The atmospheric river (a narrow band of moisture in the sky from the tropics) will keep funnelling into southern B.C., which means lots of rain for them. The ridge of high pressure that has been bringing southern Alberta these warm temperatures is also protecting us from all that moisture… that is, until the weekend. The ridge of high pressure wil