Mary Ellen captured a relatively rare morning rainbow, over Millennium Park in West Roxbury.
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Comments
Rare?
By SamWack
Thu, 10/26/2023 - 11:21am
Rainbows are most common in early morning and late afternoon. They are more likely when the sun is at a low angle.
Maybe fewer people are up ...
By adamg
Thu, 10/26/2023 - 11:33am
Just seems that people tend to report far more rainbows in the afternoon than morning.
Those damn morning people
By SamWack
Thu, 10/26/2023 - 11:51am
keeping secret rainbows all to themselves. I knew they weren't to be trusted.
Morning rainbows are rare...
By AdamB
Thu, 10/26/2023 - 2:28pm
I learned that right here in the uHub comment section almost exactly a year ago from Ari O.
Summarizing:
The sun needs to shine under a cloud with falling rain to create a rainbow. Since rain generally moves west to east, a clearing after a storm with the sun under it is most likely to happen in the evening, not the morning.
Do read his comment though - which explains it much better and more thoroughly:
https://www.universalhub.com/comment/909469#commen...
And, at the risk of being pedantic, rainbows aren't more likely when the sun is at low angle in the sky, they are only possible when it is low (<42°) .
Likelihood
By SamWack
Thu, 10/26/2023 - 8:26pm
As long as we are being pedantic: more rare does not mean rare (as that excellent analysis points out), and possible is more likely than impossible. More to the point, 42° is not low; at this latitude, the sun never gets higher than about 71°, and at this time of the year it only gets to about 36°, so rainbows are possible all day.
!!
By AdamB
Thu, 10/26/2023 - 11:46pm
!!
I saw it while going up South
By Don't Panic
Fri, 10/27/2023 - 2:57am
I saw it while going up South Huntington Avenue and Centre Street in JP. Blew my mind... SO COOL!
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