Sunday's 85° temperatures are a distant memory for the rest of the week. Meteorologists look at the flow of warm or cool air at 5,000 feet to determine whether our atmosphere is warming or cooling. Warm air advection is called WAA, cool air advection is called CAA. There isn't a terrible amount of CAA going on over us on Tuesday, so we'll hold our own with highs in the middle 60s. Some serious CAA develops on Wednesday as a low develops over James Bay and a high moves in over Montana. This will usher in plenty of cool air from northern Canada. The low will be a little more progressive and move into the Canadian maritimes by
Thursday. However our dome of high pressure will expand over much of the northern Plains and Midwest. We're caught in a cool, northeast flow for a few days before the high finally moves to the northeast this weekend. By then, we may get some pretty good WAA...enough to get us into the 70s? Perhaps so. Right now I'll keep some mid to high 60s in for Sunday. It all depends on the WAA and we'll be reporting on that this week.
Sunday's 85° temperatures are a distant memory for the rest of the week. Meteorologists look at the flow of warm or cool air at 5,000 feet to determine whether our atmosphere is warming or cooling. Warm air advection is called WAA, cool air advection is called CAA. There isn't a terrible amount of CAA going on over us on Tuesday, so we'll hold our own with highs in the middle 60s. Some serious CAA develops on Wednesday as a low develops over James Bay and a high moves in over Montana. This will usher in plenty of cool air from northern Canada. The low will be a little more progressive and move into the Canadian maritimes by 
Thursday. However our dome of high pressure will expand over much of the northern Plains and Midwest. We're caught in a cool, northeast flow for a few days before the high finally moves to the northeast this weekend. By then, we may get some pretty good WAA...enough to get us into the 70s? Perhaps so. Right now I'll keep some mid to high 60s in for Sunday. It all depends on the WAA and we'll be reporting on that this week.
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