The main feature that will control this weekend's weather is the slow moving upper-level low. This low will bring the potential for scattered showers on Saturday and Sunday. Behind this low, high pressure will move in and bring nicer weather to the region as we enter next week.
Short Term (This Afternoon through Sunday)
A strong area of convection is currently moving across Central PA. During the next couple of hours, it will progress to the east bring heavy rain with it behind it dissipates overnight. Behind this upper low, cold advection will commence along with enhanced clouds and moisture. Lingering clouds over the commonwealth will remain in place as the trough moves into the area. Both the 12z NAM and GFS keep the upper level trough in place through Sunday. A surface ridge will eventually build in and start to push drier air into the area. Things will begin to look up on Sunday as the clouds break due to higher pressure nudging into the area.
Long Term (Sunday night through Wednesday)
Behind this trough, a surface ridge will push into Western PA Sunday evening. It will position itself over the Ohio River valley which will create a northwesterly flow over the area. This high pressure will remain through the middle of week allowing temperatures to moderate under mostly sunny skies.
No comments:
Post a Comment