032  
FNUS86 KMTR 182106  
FWLMTR  
 
ECCDA DISCUSSIONS  
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA  
206 PM PDT FRI SEP 18 2026  
 
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## DISCUSSIONS FROM THE LATEST FWF BELOW ##  
## ##  
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..DISCUSSION FROM SFOFWFMTR
 
 
A BUILDING RIDGE OF HIGH PRESSURE IS COMPRESSING THE MARINE LAYER  
AND BRINGING WARMER AND DRIER CONDITIONS TO INLAND AREAS AND  
ELEVATIONS ABOVE 1,500 FEET. THE 24 HOUR RH CHANGE IS ANYWHERE FROM  
10-30% DRIER IN THESE AREAS. WINDS ARE MODERATE AND ONSHORE THIS  
AFTERNOON, BUT AN INCREASING OFFSHORE GRADIENT WILL TAKE OVER  
TONIGHT. OFFSHORE NE WINDS ARE EXPECTED ACROSS THE INTERIOR NORTH  
BAY AND EAST BAY MOUNTAINS FRIDAY NIGHT THROUGH SATURDAY MORNING.  
THE RIDGE AXIS WILL MOVE OVER THE REGION SATURDAY, BRINGING STILL  
WARMER AND DRIER CONDITIONS, ALTHOUGH THE WINDS SHOULD FLIP BACK TO  
ONSHORE. COOLER WEATHER RETURNS SUNDAY AND MONDAY BEFORE A MORE  
SUBSTANTIAL WARMING TREND THROUGH THE MIDDLE OF NEXT WEEK.  
 
   
..DISCUSSION FROM SFOFWFEKA
 
 
FIRE WEATHER CONDITIONS WILL BE MODERATE WITH WEAK TERRAIN WINDS,  
MODERATE RH AND GOOD OVERNIGHT RECOVERIES. CONDITIONS WILL  
SIGNIFICANTLY WARM AND DRY THIS WEEKEND WITH MUCH MORE RESTRICTED  
MARINE INFLUENCE. BY SUNDAY, INTERIOR HIGHS WILL RETURN TO THE 90S  
WITH MINIMUM RH IN THE TEENS.  
 
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## COMPLETE A DISCUSSION FOR EACH ECCDA SEGMENT BELOW ##  
## WHEN DONE CLICK TRANSMIT, PRODUCT SENT AS KMTRFWLMTR ##  
## ##  
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ECC010-190915-  
ST HELENA ECC DISPATCH-  
DISCUSSION FOR MARIN AND SONOMA AND NAPA COUNTIES  
206 PM PDT FRI SEP 18 2026  
 
A BUILDING RIDGE OF HIGH PRESSURE IS COMPRESSING THE MARINE LAYER  
AND BRINGING WARMER AND DRIER CONDITIONS TO INLAND AREAS AND  
ELEVATIONS ABOVE 1,500 FEET. THE 24 HOUR RH CHANGE IS ANYWHERE FROM  
10-30% DRIER IN THESE AREAS. WINDS ARE MODERATE AND ONSHORE THIS  
AFTERNOON, BUT AN INCREASING OFFSHORE GRADIENT WILL TAKE OVER  
TONIGHT. OFFSHORE NE WINDS ARE EXPECTED ACROSS THE INTERIOR NORTH  
BAY AND EAST BAY MOUNTAINS FRIDAY NIGHT THROUGH SATURDAY MORNING.  
THE RIDGE AXIS WILL MOVE OVER THE REGION SATURDAY, BRINGING STILL  
WARMER AND DRIER CONDITIONS, ALTHOUGH THE WINDS SHOULD FLIP BACK TO  
ONSHORE. COOLER WEATHER RETURNS SUNDAY AND MONDAY BEFORE A MORE  
SUBSTANTIAL WARMING TREND THROUGH THE MIDDLE OF NEXT WEEK.  
 

 
 
ECC014-190915-  
MORGAN HILL ECC DISPATCH-  
DISCUSSION FOR ALAMEDA AND CONTRA COSTA AND SANTA CLARA COUNTIES  
206 PM PDT FRI SEP 18 2026  
 
A BUILDING RIDGE OF HIGH PRESSURE IS COMPRESSING THE MARINE LAYER  
AND BRINGING WARMER AND DRIER CONDITIONS TO INLAND AREAS AND  
ELEVATIONS ABOVE 1,500 FEET. THE 24 HOUR RH CHANGE IS ANYWHERE FROM  
10-30% DRIER IN THESE AREAS. WINDS ARE MODERATE AND ONSHORE THIS  
AFTERNOON, BUT AN INCREASING OFFSHORE GRADIENT WILL TAKE OVER  
TONIGHT. OFFSHORE NE WINDS ARE EXPECTED ACROSS THE INTERIOR NORTH  
BAY AND EAST BAY MOUNTAINS FRIDAY NIGHT THROUGH SATURDAY MORNING.  
THE RIDGE AXIS WILL MOVE OVER THE REGION SATURDAY, BRINGING STILL  
WARMER AND DRIER CONDITIONS, ALTHOUGH THE WINDS SHOULD FLIP BACK TO  
ONSHORE. COOLER WEATHER RETURNS SUNDAY AND MONDAY BEFORE A MORE  
SUBSTANTIAL WARMING TREND THROUGH THE MIDDLE OF NEXT WEEK.  
 

 
 
ECC013-190915-  
FELTON ECC DISPATCH-  
DISCUSSION FOR SANTA CRUZ AND SAN MATEO COUNTIES  
206 PM PDT FRI SEP 18 2026  
 
A BUILDING RIDGE OF HIGH PRESSURE IS COMPRESSING THE MARINE LAYER  
AND BRINGING WARMER AND DRIER CONDITIONS TO INLAND AREAS AND  
ELEVATIONS ABOVE 1,500 FEET. THE 24 HOUR RH CHANGE IS ANYWHERE FROM  
10-30% DRIER IN THESE AREAS. WINDS ARE MODERATE AND ONSHORE THIS  
AFTERNOON, BUT AN INCREASING OFFSHORE GRADIENT WILL TAKE OVER  
TONIGHT. OFFSHORE NE WINDS ARE EXPECTED ACROSS THE INTERIOR NORTH  
BAY AND EAST BAY MOUNTAINS FRIDAY NIGHT THROUGH SATURDAY MORNING.  
THE RIDGE AXIS WILL MOVE OVER THE REGION SATURDAY, BRINGING STILL  
WARMER AND DRIER CONDITIONS, ALTHOUGH THE WINDS SHOULD FLIP BACK TO  
ONSHORE. COOLER WEATHER RETURNS SUNDAY AND MONDAY BEFORE A MORE  
SUBSTANTIAL WARMING TREND THROUGH THE MIDDLE OF NEXT WEEK.  
 

 
 
ECC018-190915-  
MONTEREY ECC DISPATCH-  
DISCUSSION FOR MONTEREY AND SAN BENITO COUNTY  
206 PM PDT FRI SEP 18 2026  
 
A BUILDING RIDGE OF HIGH PRESSURE IS COMPRESSING THE MARINE LAYER  
AND BRINGING WARMER AND DRIER CONDITIONS TO INLAND AREAS AND  
ELEVATIONS ABOVE 1,500 FEET. THE 24 HOUR RH CHANGE IS ANYWHERE FROM  
10-30% DRIER IN THESE AREAS. WINDS ARE MODERATE AND ONSHORE THIS  
AFTERNOON, BUT AN INCREASING OFFSHORE GRADIENT WILL TAKE OVER  
TONIGHT. OFFSHORE NE WINDS ARE EXPECTED ACROSS THE INTERIOR NORTH  
BAY AND EAST BAY MOUNTAINS FRIDAY NIGHT THROUGH SATURDAY MORNING.  
THE RIDGE AXIS WILL MOVE OVER THE REGION SATURDAY, BRINGING STILL  
WARMER AND DRIER CONDITIONS, ALTHOUGH THE WINDS SHOULD FLIP BACK TO  
ONSHORE. COOLER WEATHER RETURNS SUNDAY AND MONDAY BEFORE A MORE  
SUBSTANTIAL WARMING TREND THROUGH THE MIDDLE OF NEXT WEEK.  
 

 
 
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