Evening aircraft soundings from ksan show weak west to northwest flow in the low levels and east flow aloft. Precipitable water remains fairly high at 1.73 inches.
With the upper level high still in place over nm/Colorado today...
subtropical moisture will continue to advect into the region and bring a chance of showers and thunderstorms this afternoon and evening...mainly over the mountains and deserts.
However...moisture begins to decrease today and dynamic forcing will not be as strong...so dont expect convection to be as widespread as yesterday. With little change in dew points in the inland Empire and strong heating expected again...would not be surprised to see a storm or two fire along the Elsinore convergence zone again if the boundary sets up this afternoon.
Any thunderstorms that do develop will have the potential for deadly lightning...strong gusty winds...hail...and periods of locally heavy rainfall. Otherwise...warm and humid weather with partly cloudy skies is expected again today.
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