868  
FXUS66 KHNX 241104  
AFDHNX  
 
AREA FORECAST DISCUSSION  
NATIONAL WEATHER SERVICE HANFORD CA  
304 AM PST TUE NOV 24 2020  
   
SYNOPSIS
 
 
HIGH PRESSURE WILL BE OVER THE AREA TODAY. ANOTHER FAST MOVING  
WEATHER SYSTEM WILL DIVE INTO THE GREAT BASIN ON WEDNESDAY AND  
SWING THROUGH THE DISTRICT ON THURSDAY. GUSTY WINDS ARE POSSIBLE  
THURSDAY. COLD CONDITIONS WILL MOVE INTO THE AREA FRIDAY AND  
CONTINUE THROUGH MONDAY MORNING WITH MAINLY DRY CONDITIONS.  
 

 
   
DISCUSSION
 
 
THE TROUGH THAT SWUNG THROUGH THE REGION YESTERDAY HAS MOVED EAST  
OF THE AREA AND WE ARE IN A SHORTWAVE RIDGING PATTERN IN ADVANCE  
OF ANOTHER FAST MOVING SYSTEM EXPECTED TOMORROW NIGHT AND INTO  
THANKSGIVING MORNING. THE SYSTEM IS FORECAST TO BE DRY WITH MAYBE  
A FEW FLURRIES IN THE HIGH SIERRA. THE BIGGEST IMPACT WITH  
TOMORROW EVENINGS SYSTEM WILL BE THE DROP IN OVERNIGHT  
TEMPERATURES STARTING FRIDAY MORNING AND CONTINUING THROUGH THE  
WEEKEND INTO EARLY NEXT WEEK. SUB FREEZING TEMPERATURES ARE  
EXPECTED IN THE SJV AND WE WILL BE IN A PROLONGED STRETCH OF COLD  
TEMPS WITH MINS MORE THAN 10 DEGREES BELOW NORMAL FOR THIS TIME OF  
YEAR. HIGH TEMPS WILL BE NEAR NORMAL IN THE LOWER 60S.  
 
MID LEVEL RIDGING WILL BUILD IN OVER THE REGION ON FRIDAY WITH A  
COLD AIRMASS OVER THE AREA BY THE END OF THE WEEK. A WEAK AND FAST  
MOVING MID LEVEL SYSTEM WILL MOVE THROUGH THE REGION ON SUNDAY  
AND A LARGE MIDLEVEL RIDGE BUILDING BACK OVER THE AREA MONDAY AND  
TUESDAY WITH SOME WARMING EXPECTED. DRY PATTERN WITH NO  
PRECIPITATION EXPECTED IN THE EXTENDED.  
 
FOG WILL BE FAVORABLE FOR DEVELOPMENT IN THE SJV RIVER BASIN THIS  
MORNING AND AFTER THE RIDGE BUILDS IN BY FRIDAY MORNING.  
 

 
 
   
AVIATION
 
 
LOCAL MVFR VISIBILITIES DUE TO HAZE OR MIST 12Z-17Z IN THE SAN  
JOAQUIN VALLEY WITH LOCAL IFR IN MIST/FOG 12Z-17Z TODAY.  
OTHERWISE, VFR CONDITIONS WILL PREVAIL DURING THE NEXT 24 HOURS  
ACROSS THE CENTRAL CALIFORNIA INTERIOR.  
 

 
   
AIR QUALITY ISSUES
 
 
ON TUESDAY NOVEMBER 24 2020... UNHEALTHY FOR SENSITIVE GROUPS IN  
KERN COUNTY. FIREPLACE/WOOD STOVE BURNING STATUS IS: NO BURNING  
UNLESS REGISTERED IN FRESNO... KERN (GREATER FRAZIER PARK AREA)...  
KINGS... MADERA... MERCED AND TULARE COUNTIES. NO BURNING FOR ALL  
IN KERN COUNTY.  
FURTHER INFORMATION IS AVAILABLE AT VALLEYAIR.ORG  
 

 
   
CERTAINTY
 
 
THE LEVEL OF CERTAINTY FOR DAYS 1 AND 2 IS HIGH.  
THE LEVEL OF CERTAINTY FOR DAYS 3 THROUGH 7 IS HIGH.  
 
CERTAINTY LEVELS INCLUDE LOW...MEDIUM...AND HIGH. PLEASE VISIT  
WWW.WEATHER.GOV/HNX/CERTAINTY.HTML FOR ADDITIONAL INFORMATION  
AN/OR TO PROVIDE FEEDBACK.  
 

 
   
HNX WATCHES/WARNINGS/ADVISORIES
 
 
NONE.  
 

 
 

 
 
PUBLIC/AVIATION/FIRE WEATHER....JDB  
PIO/IDSS........................DS  
 
WEATHER.GOV/HANFORD  
 
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