Re: Weather and Trihull boat
lprizman put it well... "Your time will be limited on the bay" The bay is protected from the offshore swells; but still affected. Can't tell you what it's going to be
like , but always take into consideration what's going on offshore, and see how it effects the bays. With experience, you'll learn quickly if you pay close attention to even the smallest details. Have a great time out there. Wish I could go with you

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Safe and happy boating always!!!
Been lurking a while, finally registered and just been reading, so before I get started with my 1st post here, Hello!
The one thing that I see that this wx report is going to tell you, is where you'll likely want to do your boating, especially with that tri-hull.
In Tampa, many parts of our bay are sheltered by a causeway, other land masses, natural and manmade shelters.
Depending on the wind speed and direction, I've seen it almost a smooth as glass on one side of the causeway or a break, and rougher than a cobb on the other.
I'd take a dingy out on the calm side and wouldn't venture into the other without something more substantial.
Weather reports are just a clue to what you will find when you hit the water. Also here in Florida you can get rater violent afternoon thundershowers that are not in the forecast.
Years back I had a 19' tri-hull and used it extensively in Biscayne Bay and the Florida Keys. More than once I had to turn around and put it back on the trailer in wind/water that I would feel very comfortable in now up on plane in my 23' V hull CC.
I agree with the Wx changes he just mentioned.
This morning was a great example.
I'm sitting in my office, looking out the window.
Nasty gray overcast hung low, the wind picked up, and all of a sudden, there was a torrential downpour. Looked like we were in for a all day'er.
About 5-10 minutes, the rain stopped as abruptly as it began, the wind settled to a calm breeze, the gray skies lifted and we had a beautiful day in Tampa!
I'm a retired motor cop and former Coastie.
We've always had a saying in Florida.
"It's Florida!
If you don't like the weather, give it 5 miles or 5 minutes...it'll change!"
As for the tri hull, I've spent my time of a few, and for anything other than cruising the ICW, a lake or river on a calm day, I choose to avoid them in favor of a Cat-hull or Deep V.
Hope I've helped a little?
Fair Winds and a Following Sea!
All the best in your decision.