WEEKEND WEATHER FORECAST

A simple forecast for a simple weather pattern. High pressure maintains control through the weekend. Sunny skies and above seasonal average temperatures.

Current satellite water vapor image with superimposed RAP model 500-1000 mb thickness lines (yellow), Mean Sea Level Pressure isobars (black contours) potential vorticity (fine violet contours) with superimposed MRMS RADAR. Water Vapor Imagery reveals emitted water vapor infrared temperature, NOT reflected light from clouds as is the case with visible satellite imagery. (Click on image for a larger view.)

Saturday Forecast

Sunny and warm.

NBM high temperatures: Blue Bell, PA 80.5º Philadelphia, PA 81º
Average to low uncertainty (based on standard deviation): ± 1.4º

Sunday Forecast

Sunny and warm

NBM high temperatures: Blue Bell, PA 83º Philadelphia, PA 82º
Low Uncertainty (based on standard deviation): ± 1.3º

Our next chance of rain- Tuesday evening into Wednesday morning, as a cold front moves through.

Today’s 12z ECMWF-AI model forecast for Tuesday evening. (Click on image for a larger view.)