7:50 pm – 8:20 pm
when conditions allow, i.e. when temps are >50°F, Dew Point >45°F, Heating Degree Days <9, atmosphere stable, no pressure drops, no strong wind, no rain in the area. Good chance for a strong flight tonight just before or at dark

 

Sunset: 7:53 pm
Dark: 8:23 pm (10-20 minutes earlier if cloudy)
Sunrise: 7:12 am