A once-in-a-generation occurrence will happen this evening in the skies above the Hudson Valley. Here’s everything you need to know.

For the first time in almost 70 years a full moon, strawberry moon, will shine in the sky on the summer solstice, the longest day of the year.

According to The Old Farmer’s Almanac, 1948 was the last time a full moon fell on the summer solstice. It won’t happen again until June 21, 2062, reports EarthSky.org.

The Strawberry Moon name comes from the Algonquin tribes. The Algonquin’s believed that a Strawberry Moon was a sign that fruit was ripe and ready to be gathered.

(Bonus Fun Fact: In Europe it’s called the “Full Rose Moon.”)

“By landing exactly on the solstice, this Full Moon doesn’t just rise as the Sun sets but is opposite the Sun in all other ways too,” Bob Berman writes for the Old Farmer’s Almanac. “The Sun gets super high so this Moon must be super-low. Even at its loftiest at 1 AM, it’s downright wimpy-low. This forces its light through thicker air, which also tends to be humid this time of year, and the combination typically makes it amber colored.”

Across the Hudson Valley the Strawberry Moon is expected to rise at 8:37 p.m. Monday and will set around 6:30 a.m. Tuesday.

So this evening head outside to catch what is potentially a once in a lifetime occurrence.

Feel free to send us any great pictures you get of tonight’s Strawberry Moon!