Category Archives: Weather Outlook

Light Snow Possible for late Saturday in PHL

A weak low pressure disturbance will move along a frontal boundary just to our south late Saturday afternoon.

There are increasing signs that a last minute intensification will occur as the disturbance reaches the coastline.

If this occurs  in the evening rather than during the daytime hours, the high March sun angle won’t be a factor and some snow accumulation is possible.  Current NAM QPF values are about 0.33 inches water.  Current thermal profiles support the precip falling mostly as snow, but light QPF in March can be difficult to accumulate, unless it occurs at night.

Each recent successive model run has shown slightly greater intensification.    Not a sure thing, but it needs to be watched.

The long range models are suggesting a continued overall somewhat cold  pattern with another deep cold outbreak the end of next week, followed by moderating temperatures.