OK folks, we legitimately have something to track — all models now agree on a southern stream system developing a Gulf of Mexico low over the weekend. There is also a modest supply of cold air.
I have to tell you, a LOT has to go right for this to work out (but it beats the ZERO chance we’ve faced all winter).
The main features are:
1) The Southern stream system — we need this to trend stronger on the models so it can start to draw down some cold air once it starts to turn to the NE.
2) A low pressure area NE of Maine — this needs to be like the baby bear’s porridge. If it’s too strong, it will crush our southern stream system and cause it to be too suppressed to our south. This is what the models have been showing for the last few days, but started trending sharply toward a less suppressed solution yesterday. On the other hand, if the northern low becomes TOO weak or trends too far north, it will mean less cold air is funneled down and we end up with rain.
It is POSSIBLE that there IS NO GOOD RESULT HERE — that is, to get the southern stream system far enough north, we sacrifice our cold air OR to get enough cold air, we sacrifice our precip. The Euro is closest right now, with precip knocking on our doorstep and upper level temps BARELY cold enough for slushy snow.
This is the kind of setup which, if we saw it 6 or 8 times during a typical winter season, we might thread the needle once. Obviously, we don’t have the luxury of 6 or 8 more chances as we sit here almost halfway through February.
So, I’d still give us a 1 or 2 out of 10 chance, but at least it’s not zero and it will be fun to at least track something over the next few days.
More to come after 12z model runs, this afternoon.