024  
FXUS66 KSTO 182145  
AFDSTO  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE SACRAMENTO CA  
245 PM PDT SAT AUG 18 2018  
   
SYNOPSIS
 
 
ABOVE NORMAL TEMPERATURES CONTINUE THROUGH THE WEEKEND, WITH  
GRADUAL COOLING EARLY NEXT WEEK. AREAS OF SMOKE AND HAZE WILL  
CONTINUE, ESPECIALLY NEAR WILDFIRES.  
 

 
   
DISCUSSION
 
 
HOT AND DRY CONDITIONS CONTINUE THIS AFTERNOON AS A RIDGE OF HIGH  
PRESSURE REMAINS IN CONTROL. LATEST SATELLITE IMAGERY SHOWS SMOKE  
AND HAZE ENVELOPING THE COASTAL RANGE AND THE NORTHERN SACRAMENTO  
VALLEY DUE TO LIGHT WINDS. AFTERNOON TEMPERATURES ARE RUNNING UP  
TO 5 DEGREES WARMER COMPARED TO YESTERDAY'S, WITH VALLEY HIGHS IN  
THE MID TO UPPER 90S.  
 
UPPER RIDGING AXIS WILL SHIFT EAST OF THE STATE BY SUNDAY MORNING  
AS AN EASTERN PACIFIC TROUGH MOVES INTO THE WEST COAST. INCREASED  
ONSHORE FLOW WILL BRING SOME COOLING NEAR THE DELTA INFLUENCED  
AREAS, WITH TEMPERATURES REMAINING A LITTLE ABOVE SEASONAL  
NORMALS. SOME SMOKE IMPROVEMENT IS EXPECTED EARLY NEXT WEEK AS  
WINDS TURN SWLY DUE TO THE APPROACHING TROUGH. IN ADDITION, ENHANCED  
SW WINDS ARE EXPECTED EXPECTED OVER THE HIGH SIERRA RIDGES IN THE  
AFTERNOON AND EARLY EVENING HOURS, WITH GUSTS 20 TO 30 MPH.  
 
THE SLOW MOVING UPPER TROUGH WILL BRING NEAR OR SLIGHTLY BELOW  
NORMAL TEMPERATURES THROUGH MIDWEEK. LOOK FOR VALLEY HIGHS IN THE  
90S, AND 70S TO LOW 90S OVER THE FOOTHILLS AND MOUNTAINS. BREEZY  
AFTERNOON WINDS WILL BE POSSIBLE OVER HIGHER TERRAIN. DRY  
CONDITIONS WILL PREVAIL ACROSS INTERIOR NORCAL THROUGH THE  
FORECAST PERIOD.  
 

 
 
.EXTENDED DISCUSSION (WEDNESDAY THROUGH SATURDAY)  
DRY WEATHER WILL CONTINUE LATER NEXT WEEK AS INTERIOR NORCAL WILL  
LIE BETWEEN HIGH PRESSURE OVER THE SOUTHWEST AND A WEAK TROUGH  
LINGERING ALONG THE WEST COAST. VALLEY TEMPERATURES ARE EXPECTED  
TO REMAIN IN THE 90S, WITH 70S TO LOW 90S OVER THE FOOTHILLS AND  
MOUNTAINS. ONSHORE FLOW COULD KEEP OVERNIGHT TEMPERATURES IN THE  
UPPER 50S TO LOW 60S. BREEZY WINDS POSSIBLE AT TIMES OVER HIGHER  
TERRAIN.  
 

 
   
AVIATION
 
 
LOCAL MVFR/IFR CONDITIONS IN HZ/FU NEAR WILDFIRES, OTHERWISE VFR  
CONTINUES OVER THE AREA FOR THE NEXT 24 HOURS. WINDS BELOW 15  
KNOTS. LOCAL SW SURFACE WIND GUSTS 15-25 KTS VICINITY DELTA.  
 
DANG  
 

 
   
STO WATCHES/WARNINGS/ADVISORIES
 
 
NONE.  

 
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab CA Page Main Text Page