I pulled out 52D Like an owl, in a simile: WISE because I recently became a magician member of the Magic Castle. The Magic Castle’s symbol is an owl, so that’s cool. I haven’t been in the building in about 18 months, but soon that will change.

Theme time!

20A Service offered by Dropbox: CLOUDSTORAGE.
29A Firefly: LIGHTNINGBUG. Personal confession that I don’t believe that fireflies exist. I mean I know they do, but I also feel like they’re a myth? Kind of like electric eels. But maybe those are a real thing, too. I need to see them to be certain that they aren’t fictional.
43A Classic Corvette alternatives: THUNDERBIRDS.

52A What precedes a storm … or a hint to 20-, 29- or 43-Across: WEATHERFRONT.

Finished this one in 4:52.

Day	This Wk	Best	Average	4-Wk Avg	Streak
Monday	4:52	3:49	9:27	6:12	68
Tuesday		5:22	13:40	12:38	10
Wednesday		7:38	17:36	17:19	8
Thursday		12:12	29:19	27:30	8
Friday		16:23	34:46	30:46	8
Saturday		27:43	34:08	33:23	8
Sunday		15:11	55:51	37:56	8