Tuesday Afternoon Map Discussion

A return to heat and humidity is underway across the area as the trough across the East lifts out to the Atlantic. This will allow the Bermuda high to build in. Expect highs of around 94 through the week. I would post what the models say for this week, but they all look the same.

By Friday, a trough will move into the Upper Midwest and drag a cold front with it. Let’s check out what the models have to say:


The 12z GFS 500 mb chart valid at 1 pm Saturday, and it’s pretty easy to tell where the action is – right over the Midwest. One would expect a line of showers and thunderstorms to trail from Michigan to Oklahoma.


And that is exactly what we see. This squall line should make it into the Mid-South sometime on Sunday. Timing will need to be resolved by later model runs. For now, Sunday appears to be the best chance for rain.

Now for the GFS crystal ball:


And again, the GFS goes back to a wet solution for July 4 morning. Again, take this with lots of salt. Tomorrow’s run may be completely different.

That’s all for today. Another update tomorrow.