SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SACRAMENTO CA 337 AM PDT SAT JUL 20 2013 ...HOT TEMPERATURES FOR INTERIOR OF NORTHERN CALIFORNIA THIS WEEKEND...FOLLOWED BY A CHANCE OF THUNDERSTORMS OVER THE MOUNTAINS NEXT WEEK... * HIGH TEMPERATURES: 106 TO 112 IN THE NORTHERN SACRAMENTO VALLEY AND 100 TO 105 IN THE SOUTHERN SACRAMENTO VALLEY AND NORTHERN SAN JOAQUIN VALLEY. 80S AND 90S IN THE MOUNTAINS. TODAY WILL BE THE HOTTEST DAY...WITH GRADUAL COOLING SUNDAY AND MONDAY. * THUNDERSTORM CHANCES: SLIGHT CHANCE OVER THE SIERRA NEVADA SOUTH OF TAHOE THIS WEEKEND. THE CHANCE OF THUNDERSTORMS INCREASES TUESDAY THROUGH WEDNESDAY AND SPREADS TO INCLUDE ALL OF THE SIERRA...SOUTHERN CASCADES...AND NORCAL COASTAL MOUNTAINS. * PRECAUTIONS: DRINK PLENTY OF WATER. AVOID OUTDOOR ACTIVITY DURING THE HOTTEST PART OF THE DAY. MONITOR CHILDREN...THE ELDERLY...AND PETS.