Friday, August 07, 2009

Here We Are Again


Very suppressed yesterday except for far east. Hot dry winds yesterday and again for today. The bit of rain that fell Tuesday and Wednesday is now blowing in the wind toward Kansas.
Satellite image for 1500Z shows skies mostly clear across all of Arizona. Dewpoints are mostly upper 20s and 30s with some 40s in far southeast.The western trough and 90 to 100+ kt upper-jet across Arizona makes the pattern appear as if Fall is here. So, the question for now is how long the dry weather will continue. Or I could say that the failed monsoon had a two day break with some storm activity in the southeast, but that it (the failed monsoon) came back quickly.
There are two very large inverted troughs off to the east- one stretches across the Gulf of Mexico and the other is out in the west Atlantic. The GoM feature extends down to 700 mb and will push west and do battle with the western trough in the westerlies. Forecasts indicate this feature will shear apart with the lower portion weakening and coming across central Mexico.
Looks like that's about the main thing we have to watch the next several days. Summer 2009 - so it goes.

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