Weekend storms may cause thunderstorms and lightning

RIVERSIDE - An upper level trough that will move across Southern California tonight may cause thunderstorms with dry lightning over the Riverside County mountains on Saturday, followed by high pressure bringing higher than average temperatures in much of the area and the Coachella Valley next week, forecasters said.

The weak subtropical disturbance is forecast to move into the local area on Saturday and may cause isolated lightning and gusty winds of up to 35 miles per hour, according to the National Weather Service. However, the moisture will be too limited for any considerable threat of heav...