Ahead of an approaching system from the west, a ridge will build in across the Northeast for the weekend, allowing for warm air and moisture to build into the region. The process that will help cause these abnormal temperatures, called warm-air advection, is the transport of warmer air by the flow of the atmosphere. In our region, this usually happens with a southerly flow, which brings warmth and moisture from the Gulf Coast, which is what we'll be seeing through Monday.
For our Saturday, morning fog will give way to a mostly to partly sunny sky, with calm, dry conditions and a high in the mid-60's. Sunday will then be much of the same with even warmer highs into the upper-60's, and some places could even threaten the 70°-mark! Below is GFS data showing highs well into the 60's and approaching the 70's when our average high is only in the mid-40's.
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| GFS MOS data from Friday showing record warmth this weekend! |
However, all good things must come to an end, as clouds will increase on Monday with that cold front approaching from the west. Though the region will continue to see highs well into the 60's, showers will be the story for the PM hours, with upward of a half an inch of rain possible at this time. On top of the warm temperatures and rain threat, windy conditions will be in play due to the pressure difference between the strong low pressure over the Great Lakes and high pressure off the coast. Breezy conditions will continue into a beautiful and slightly cooler Tuesday. Below is the GFS (American) model's look at Monday's rainfall for Monday late afternoon/evening.
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| Friday afternoon's GFS model run showing Monday's rain threat. Image courtesy of TropicalTidbits.com |
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