Over the last few days both my blog and my Twitter feed have been dominated by one topic...Earl. So I thought I'd bring the focus back to Peterborough and the Kawarthas and give you a breakdown on what is in store for tomorrow. If you're like me, and are not a fan of the heat, I have some good news for you...a cold front is on the way. I expect things to cool down in a big way tomorrow after that front pushes through in the afternoon. The above image is from the ADONIS forecast model and has that front arriving some time between 2-4pm.
By 8pm the cold front will be well to the east of us but there is still alot of instability to the west of the frontal boundary. That wraparound precipitation will likely occur into Saturday (boo) but it's still only Thursday so don't start planning to hang the weatherman just yet. I will touch on Earl quickly here as he does make quite a dramatic appearence in the above image. This model has that cold front still a good distance away from Earl so any hope of that front either weakening (shear) or deflecting Earl in any way is pretty slim.
Back to Peterborough now, here's your 9-2-5 forecast tomorrow. This board really illustrates the cool down we can expect over the next 24 hours. Our daytime high tomorrow will likely occur around 1pm as a southerly push of wind just ahead of that front continues to pump in warm, humid air. The front then "collides" with that muggy air around 2pm which could bring as much as 10-15mm of rain and may even spark up some thunderstorm activity. By 5pm we should start to see some clearing but a light shower is still possible and the temperature will have dropped between 3 to 4 degrees. In short, tomorrow will see a muggy start, a rainy (possibly active) afternoon and a considerably cooler evening.
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