Southwest Stealth

Interesting forecast for the weekend in the American Southwest: thunderstorms, but NOT fueled by Emily moisture. Emily moisture is forecast to drift westwards across Mexico, just south of the border, affecting no one north of the border, silent and stealthy, like a black cat padding westwards on a moonless night as dark as India ink.

It could be the models are not sophisticated enough to catch all the details of air movement: there ARE ways to funnel some of that moisture north, padding feet or not. There is a low-level jet that develops on the western slopes of the Sierra Madre at nighttime that CAN move some of that moisture north.

But perhaps it's just a detail. Thunderstorms, whether fueled by Emily or not, would be welcome this weekend throughout the overheated region, and they are forecast to occur regardless.