305  
FXUS66 KSTO 021005  
AFDSTO  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE SACRAMENTO CA  
305 AM PDT THU JUL 2 2020  
   
SYNOPSIS
 
 
DRY WEATHER WITH SEASONABLE TEMPERATURES FOR THE NEXT WEEK.  
 

 
   
DISCUSSION
 
 
OTHER THAN A FEW HIGH CLOUDS, SKIES ARE CLEAR ACROSS INTERIOR  
NORCAL EARLY THIS MORNING. THE DELTA BREEZE IS A LITTLE STRONGER  
THAN YESTERDAY AS THE MARINE LAYER HAS DEEPENED A BIT ALONG THE  
COAST IN RESPONSE TO SLIGHT LOWERING OF HEIGHTS ALOFT AS THE PACNW  
TROUGH EVOLVES. THIS HAS RESULTED IN A LITTLE COOLING ACROSS THE  
NORTHERN SAN JOAQUIN VALLEY AND SOUTHERN HALF OF THE SACRAMENTO  
VALLEY COMPARED TO 24 HOURS AGO. ELSEWHERE, CURRENT TEMPERATURES  
ARE MOSTLY A LITTLE MILDER COMPARED TO EARLY WEDNESDAY.  
 
DRY WEATHER WITH RELATIVELY MINOR FLUCTUATION IN TEMPERATURE IS  
EXPECTED THROUGH THE UPCOMING FOURTH OF JULY HOLIDAY WEEKEND OVER  
MOST OF INTERIOR NORCAL. READINGS WILL REMAIN CLOSE TO SEASONAL  
AVERAGE.  
 
AREAS INFLUENCED BY THE DELTA BREEZE WILL SEE A LITTLE LOWER  
TEMPERATURES TODAY AND FRIDAY, THEN A LITTLE WARMER TEMPERATURES  
ARE EXPECTED OVER THE WEEKEND AS THE WEST COAST TROUGH WEAKENS AND  
HEIGHTS ALOFT RISE AGAIN OVER NORCAL AS THE SOUTHWEST HIGH BUILDS  
NORTHWARD. THE DELTA BREEZE WILL LIKELY RETREAT, BUT NOT  
COMPLETELY DISAPPEAR, AS THE MARINE LAYER BECOMES MORE SHALLOW.  
 

 
   
EXTENDED DISCUSSION (MONDAY THROUGH THURSDAY)
 
 
ONLY SUBTLE CHANGES ARE LIKELY IN THE LARGE-SCALE PATTERN HEADING  
INTO NEXT WEEK. ENSEMBLES MAINTAIN A POSITIVELY-TILTED TROUGH  
JUST OFFSHORE OF THE PACIFIC NORTHWEST WHILE THE FOUR CORNERS  
RIDGE EXPANDS TOWARD ARIZONA. TEMPERATURES WILL BE CLOSE TO  
SEASONAL AVERAGES ON MONDAY, FOLLOWED BY A SLIGHT COOLING TREND  
HEADING INTO MID-WEEK. A DRY WEATHER PATTERN WILL CONTINUE.  
 

 
   
AVIATION
 
 
VFR CONDITIONS NEXT 24 HOURS. SURFACE WINDS GENERALLY BELOW 12  
KTS, EXCEPT FOR LOCAL SOUTHWESTERLY GUSTS UP TO 20-25 KTS VICINITY  
DELTA.  
 

 
   
STO WATCHES/WARNINGS/ADVISORIES
 
NONE.  
 

 
 

 
 
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