Sky and Clouds

Often called the Sunshine State, the Water State is probably a better fit. Or better yet, how about the Scenic Cloud State? There’s no more beautiful a sight than an afternoon cloud building up inland in the Everglades or off the coast from the beach. | Major water bodies | Estuaries and coast | Rivers and creeks | Lakes and ponds | Springs and swallets | Canals and levees | Sky and clouds | Florida’s water districts | Underlying aquifers

big weather

Florida’s “meteorological” four horsemen
And why they aren't so scary after all

Can you hear the apocalyptic atmospheric stampede?

Not to worry — the world is not coming to an end.  It’s just the sound of one of Florida’s four horsemen galloping across the sky.

Storms roll across the Florida peninsula
like a stampede of wild horses

Who exactly are the Four Horsemen you may ask?

  • The first is our old faithful of the summer: the Enhanced Sea Breeze. I’m not talking your any day old run of the mill sea breeze. This is the one that, with a little help of upper level atmospheric instability and a Gulf flyover of a deep dipping Jet Stream – two factors that puts extra wind behind the sails of the sea breeze, creates our gargantuan Kilimanjaros rising out of the Everglades and the famed morning showers offshore of Miami.
  • The second horseman is the Continental Front. The thunderous squadrons of clouds that they bring, often leaving cold air in their wake, are typically a dry season event. But they’re not unheard of in the early summer season. That’s what makes June such a critical rainfall month for south Florida. Lingering springtime instability up on the continent – both in the upper and lower atmosphere – juices the early part of the rainy season, from Memorial Day to Forth of July. Once July roles around, a more homogeneous air mass takes hold across the southern peninsula. Trade winds blowing due east off the Bermuda High become the prevailing wind pattern.
  • It’s the Bermuda High that paves the path for the third horseman, and the scariest: the Cape Verde. These are the mammoth hurricanes that spawn off the coast of Africa, and head west around the perimeter of the Bermuda High. This one packs the full punch – horizontal rains, instantaneous – if only momentary – sea level rise, and tree-toppling winds. And this is no sucker punch – it broadcasts its potential fury days in advance, but it keeps its exact landfall a secret until the day approaches, and I use the term “day” only in calendar sense, because once the Cape Verde stampedes to shore, it turns daylight into night, other than a brief glimpse of daylight at its eye. That’s its prelude to the second half of its 1-2 punch, more commonly known as its knock out blow.
  • The fourth horseman is the Tropical Tempest from the Gulf and from the Caribbean. Usually not as scary as the Cape Verde, they play a prominent role in the early and late part of the hurricane season. Don’t be overly concerned with the magnitude of these, because even a disorganized wave of tropical moisture can give us the coveted BRD – Big Rain Day, as coined by the District’s Meteorology team. In technical terms, that’s a sFL-wide daily rainfall total of more than 1 inch. Geoff Shaughnessy tells me we need 6 BRDs to keep the annual water coffers filled.

You can hear and see them
coming from miles away

Florida’s four meteorological horsemen are each ominous in their own way, but after a long dry season their hooves, too, are music to water managers’ ears.  Finally, aquifers and wetlands can start to refill.

But come high water the same horsemen are cause for concern.

That’s the thing about the four horsemen:

They are a wild breed.  Yes, you can tame the landscape upon which they roam with levees and canals only so much.  The horsemen in their full fury have a reputation of running roughshod over civilization’s carefully laid plans.

In 1990 Lely Development Corporation commissioned
five 1 1/4 life sized running horses for the entrance to their luxury country club community in Naples, Florida.

But mostly the four horseman are fun to watch (and hear) from a distance.

Just be sure to take good cover when they run near!

Share article with friends

Caveat: Of course the predominant direction that all storms arrive is “downward” from up in the sky!

animation switch short

Follow the rainbow
A pot of gold awaits

Sometimes in south Florida …

You simply have to ignore the month.

Looking north towards I-75 Alligator Alley

Technically speaking, we should be bearing down (and scarfing up) in preparation for a deep polar freeze (or two). Well, at least not yet. So far this December, the weather has been closer to the hot and humid summer pattern of pop-up showers and copious morning fog. How thick is that fog? Thick enough to make pea soup seem transparently thin. The commute ride into work, for those that have been doing it, has been a white knuckle ride with 300 ft visibility. On the good side, there’s the mid afternoon rainbow as seen above. At 1,000 feet above the ground, the air temperature is also delightfully cool.

wet season

Swamp’s “Old Faithful”
Almost like clockwork

No, you can’t set your watch to them …

And some days it doesn’t rain at all.

It doesn’t rain all day, but summer is predictably rainy

But over the long haul, south Florida’s wet season is pretty predictable with June, July, August and September being its four core months.

That makes those afternoon clouds “Old Faithful” in my book!