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Originally Posted Fri 8:11 PM —A typical summer pattern will be with us through the weekend. Warm, humid each day. A chance of pop-up storms late afternoon, but most of the area will be dry.
Reviewing Friday’s forecast, some pop-up storms developed in South Jersey, but did not move far westward. As mentioned, the REFS has a tendency to over-forecast convective rainfall. Looking back, the new Canadian GDPS with “AI Spectral Nudging” was spot on with the today’s weather and I’ll lean on it for this weekend’s forecast.
Saturday Forecast
Cloudy with some fog in the morning. Clouds lift for sunshine by late morning through the afternoon. A few pop-up thundershowers possible about 7 PM
NBM high temperatures: Blue Bell, PA 89º Philadelphia, PA 90º
Higher than average uncertainty (based on standard deviation): ± 2.4º
Sunday Forecast
Sunny. Some clouds far west. Showers possible far western sections in the evening.
NBM high temperatures: Blue Bell, PA 89º Philadelphia, PA 90º
Average uncertainty (based on standard deviation): ± 1.5º
Models used for this forecast: NBM RRFS GDPS with “AI Spectral Nudging”