• Mark Alan Lovewell

Snow Moon, Extreme Tides

Expect extreme tides next week. Tides will run higher and lower than normal and it is due to an astronomical event. Next Tuesday night’s big full moon, the Snow Moon, will be in perigee. You probably won’t notice by looking at the moon, but the full moon is closer than normal. It will be about 221,681 miles away. For comparison, when the moon was farthest from the Earth, in apogee, on Feb. 5 it was 252,621 miles away. That is a big difference.

You’ll know the significance in the distance when you look at the tides next week, especially Tuesday. High tide will be higher than normal near noon and midnight. Low tide will be more extreme around the time of sunrise and sunset.

The earliest signs of the variation will start being noticeable this weekend. And it will extend well into late next week.

Expect to see the wrackline rise farther up the beach with the high tide. At low tide, sandbars that are normally seldom seen will be visible.

The full moon will be in the zodiacal constellation Leo, a constellation we often associate with spring.
 

Sunrise and Sunset
Day Sunrise Sunset
Fri., Feb. 15 6:37 5:14
Sat., Feb. 16 6:36 5:15
Sun., Feb. 17 6:34 5:17
Mon., Feb. 18 6:33 5:18
Tues., Feb. 19 6:32 5:19
Wed., Feb. 20 6:30 5:20
Thurs., Feb. 21 6:29 5:22
Fri., Feb. 22 6:27 5:23

Temperatures and Precipitations
Day Max (Fº) Min (Fº) Inches
Feb. 8 42 37 0.08
Feb. 9 47 24 0.00
Feb. 10 33 22 0.00
Feb. 11 35 26 0.00
Feb. 12 35 24 0.00
Feb. 13 48 27 *0.83
Feb. 14 45 31 0.00

 

Water temperature in Edgartown harbor: 37º F

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