IR image from 18 UTC today showing heavy cloud cover over northern Mexico and much of the Southwest. Hurricane Polo is approaching southern Baja at this time, maintaining Cat. 3 strength (96 to 112 kt).
GFS forecast from 12 UTC run for 500 mb at 18 UTC today. Below is forecast from same run for 500 mb valid at 00 UTC tomorrow afternoon. Note the powerful short-wave across Arizona.
The NWS has issued a FF Watch for much of Arizona (above) valid from now until 11 PM tomorrow night. Current morning forecast for the airport shown below.
Morning Outlook from NHC for track of Hurricane Polo shown below. Storm is forecast to dissipate southeast of Tucson tomorrow afternoon.
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