Buresh Blog: Wet season by the numbers... Equinox temps... Oct. averages... Fall foliage

U.S. severe storm reports since June 1

Jacksonville, FL — As we enter the second to last month of the Atlantic hurricane season, get daily updates on the tropics * here * - “Talking the Tropics With Mike”.

And an interesting historical look at a powerful hurricane that hit NE Fl. & SE Ga. - from the Gulf - 125 years ago in 1896:

Our “official” wet season is coming to an end. We can still have some very wet episodes in Oct. - especially if the tropics become involved - but otherwise June - Sept. typically make up more than half our annual rainfall. At JIA, a drier Sept. resulted in a wet season that was “only” 2.36″ above avg. Many spots in NE Fl. & SE Ga., however, had a far wetter June - Sept. In any case, a very wet mid June through mid Sept. Last year’s June - Sept., by the way, totaled 34.95″ so was even wetter.

Interesting map from @Climatologist49 showing the temp. difference between the Equinox’s. As one would expect, the vernal (spring) equinox is much colder w/ the greatest differences at more northern latitudes.

So now we head deeper into fall. The Oct. averages for JIA:

Which brings us to fall foliage - starting to come into full “bloom” across the far Northern U.S. Jacksonville/NE Fl./SE Ga. doesn’t get to enjoy some fall color until Thanksgiving through Christmas.

And - finally - an interesting map from the Iowa Environmental Mesonet (IEM) showing the number of storm reports (usually hail, wind damage, flooding, tornadoes) since June 1st divided by N.W.S. offices. The “winner” is Mount Holly, NJ which is pretty unusual (the Midwest or South would usually be at or near the top). In fact, the other “standout” is the lack of storm reports across the Southern Plains & a good part of the Deep South. It’s not unusual for the most severe storms during the summer to shift north, but the lack of storm reports across the South is noticeable. The Jacksonville N.W.S. logged more than 300 storm reports flanked by 500+ reports in the Tallahassee & Charleston N.W.S. areas. The only offices to have zero reports - Seattle & San Francisco.