10/04/2026
Cloud Tops Scary Weather vs. Radar Imaging
Avoid Hurricane Weather Hype Today!
Before you read this morning weather hype posts.
Here is what is is really happening.
That spot the Hurricane Center is watching is not near us.
It is not even close.
It is in the Bay of Campeche.
If you have never heard that name, here it is: the big curve of water tucked under Mexico, between Mexico's coastline and the Yucatán Peninsula.
Picture the bottom-left corner of the Gulf. From the Keys, it sits about 900 miles west-southwest of us.
Two things make that corner worth knowing.
First, in October it is the last warm bathtub in the Gulf.
The water there is shallow, and shallow water heats up fast and holds its heat.
Storms feed on warm water. So late in the season, when the rest of the Gulf has cooled off, this corner is still open for business.
Second, a storm born there comes at us from a different direction than most people expect.
A storm up by Texas or Louisiana comes from the northwest.
A storm in the Bay of Campeche comes from the west to southwest.
Either way, it usually needs a front to grab it and drag it our way. If that happens, we are talking two or three days, not two or three weeks.
Now the calm part.
Right now the Hurricane Center says a broad area of low pressure could form there in a few days.
Their chance of it becoming a storm in the next 48 hours: near zero.
Read that the way it is meant. Nothing is there yet.
That is a "keep an eye on this corner" note, not a "get ready" note.
Now the Cloud Top Forecast on the Weather Pages You Will see this Morning:
Two storm pictures get shared every time something is out there. Most people think they are the same picture.
They are not.
One is cloud tops. The other is rain. Here is the whole thing in one sentence: cloud tops show you the top of the storm, and rain shows you what lands on your boat.
Start with cloud tops.
A weather satellite does not really take a picture of clouds. It takes a picture of heat. High clouds are very cold. So when you see a bright blue or purple blob on a cloud-top map, you are not looking at rain. You are looking at a cloud that grew tall, which means air is shooting up fast inside it.
Now rain.
Rain is water falling at the ground. That is all it is. And here is the problem: how tall a cloud gets does not tell you how much water comes out of it.
That is why the two pictures disagree all the time.
A tall, skinny tower can light up a cloud-top map and drop almost nothing on one small spot.
The frozen top of a big storm gets blown downwind for miles, so most of that bright color is sitting over water with no rain under it at all.
Flip it around and a low, flat, boring-looking rain band can pour inches while the cloud-top map shows nothing worth posting.
And sometimes the cloud looks great while dry air underneath eats the rain before it ever lands.
So why do the hype pages love cloud tops?
Because a cloud-top loop is the most dramatic picture in the whole forecast. Purple looks like disaster on any phone screen. So the clip gets posted as "look at all this rain" when it is not a rain picture at all. It is a picture of how hard the air is rising. Rising air is a maybe. Rain on your boat is a fact.
Use the two for two different jobs.
Cloud tops tell you where the storm is angry. The coldest top marks the strongest rising air, and that is where the lightning and the wind gust come from. That is the part you keep the boat away from.
Rain tells you what your day looks like. Wet, dry, blown out, or fishable.
Cold top, where it is dangerous. Rain, what you get on deck. That is the whole story.
So what do you do with it?
Fish your weekend.
Look again around Tuesday.
And when something does finally form down there, do not stare at the American radar.
It stops at the coastline and cannot see that water at all.
Mexico's own radar on the Campeche coast, Sabancuy, watches it every day — Check back on Tuesday and if I see anything worthwhile I will post it.
Attached is the current radar from that zone and I have zoomed in on the 8:00 AM Cloud Top imagery.
— Capt. Ryan, Good Karma Sportfishing · Florida Keys
