What can trick-or-treaters expect tomorrow evening? If the latest high-resolution forecast models prove accurate – there may be a break in the rain between 6 and 9 PM. The image below is from the latest North American Model (courtesy WxBell) showing steady rains across the D.C. Region at 3pm pulling north of the metro area by 6pm.
The “Scariest” portion of your Halloween may come from a loss of power as a strong squall line barrels through our region between 9pm and midnight potentially producing wind gusts over 60 mph.
This squall line accompanied by a strong cold front will usher in the coldest air of the season in its wake. High temperatures on Friday will hold in the middle 50s with low temperatures dropping at or below freezing in our northern and western suburbs on Saturday morning. Sunday morning will likely be the coldest morning of the season due to lighter to near calm winds as temperatures plummet into the middle to upper 20s away from the cities of Baltimore and Washington and warm waters of the tidal Potomac and Chesapeake Bay.
Temperatures in D.C. may hold just above the freezing mark on Saturday and Sunday morning; but the growing season will come to an end for many this weekend as we roll the clocks back one hour Saturday night.