LOWER SNOW TOTALS FORECAST ON-TRACK

Despite the impressive snow falling at 3 PM, the revised forecast of only 1-2 (3) inches in the Philadelphia area and immediate northern and western suburbs remains on-track from this morning’s update.

Based on radar, the changeover has just moved north of the Delaware-PA state border.

The high winds (50-60 mph) are still expected this evening and night-time hours.

The latest NAM and NAM-NEST continue to show warm air entering the region at 6000 feet (800 mb) with a change to sleet, freezing rain and rain in the 6  – 8 PM timeframe.  The higher resolution NAM-NEST shows a possible alternation of precipitation types during the evening hours, especially far north of the city.  A changeover to back to snow will occur 2- 5 AM depending upon location.  The snow will gradually taper during the morning hours. 

The latest NAM NEST snow totals—

Latest NAM-NEST snow totals by 7 AM Thursday (Click on image for a larger view.)