Tuesday, September 25, 2012

Unsettled Weekend?

The incoming frontal boundary that's going to bring showers to our region over the next couple of days will stall out nearby -- and perhaps be a thorn in our side for the start of the weekend.

In the wake of what we get tonight (north/west) and tomorrow afternoon (everyone), the front stalls out overhead...with a second shot of rain poised to move through at some point early Friday. This second shot of rain will push east-northeast and bring a damp, perhaps cool Friday to the region where temperatures may not crack 70 even into the city.

From there, uncertainty exists about the weekend.  Modeling from the GFS and EURO (above and below) show the front lurking across the Mid Atlantic into the weekend.  The frontal zone may get agitated with a couple of rounds of energy over the weekend as a trough sets up in the eastern parts of North America and the front gets stuck by a ridge of high pressure in the Atlantic.  The result is a potentially unsettled weekend for our region.  For now, we're pushing for Saturday being the unsettled day of the weekend as lingering showers are possible.  Timing these disturbances through the region will be a tough task since they are weak and relatively quicker moving.

Noting this, keep in mind that the weekend may be less than ideal and that there could be showers around thanks to this frontal boundary moving in and stalling out.  Any rains this weekend don't look to be overly heavy -- could be more showery than outright rainy.  We'll keep an eye on it!