Larry Huffman writes (to Larry Bunner):

"I know you put a lot of effort into weather forecasting and
sharing your skill with others. I’ve been using a quick and dirty way of
forecasting thermals that I’ve had pretty good results with.

Go to a National Weather Service point forecast such as this one for Groveland,
Fl.
https://forecast.weather.gov/MapClick.php?lat=28.5593&lon=-81.8553

Then scroll down to the
hourly forecast graph and click on it.

There are some additional options with check boxes at the top. Under “Fire
Weather” (on the right) select Mixing Height and then select Submit.

When the new graph comes up (at the bottom) if you run your cursor across it you
can read the hourly values at the very bottom or click on the graph again and it
will give you a digital read out.

I like it because it gives me multiple weather values for the whole day. You can
use the temperature dew point spread and divide by 4.5 to calculate the cumulus
cloud base.

If you haven’t seen this before I hope it will be useful."

TOL from XCSkies for 4 PM Tuesday: