325
FNUS86 KMTR 122141
FWLMTR
ECCDA DISCUSSIONS
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
241 PM PDT WED AUG 12 2026
#####################################################################
## ##
## DISCUSSIONS FROM THE LATEST FWF BELOW ##
## ##
#####################################################################
..DISCUSSION FROM SFOFWFMTR
...NEAR CRITICAL FIRE WEATHER CONDITIONS WEDNESDAY AFTERNOON THROUGH
THURSDAY EARLY MORNING ACROSS MONTEREY AND SAN BENITO COUNTIES DUE
TO HIGH BASED THUNDERSTORMS...
A SLIGHT (15%) CHANCE OF THUNDERSTORMS CONTINUES THROUGH EARLY
THURSDAY MORNING FOR MONTEREY AND SAN BENITO COUNTIES. CONFIDENCE
HAS INCREASED COMPARED TO EARLIER THIS MORNING DUE TO THE
OVERPERFORMANCE OF THUNDERSTORM ACTIVITY LATE THIS MORNING AND
AFTERNOON COMPARED TO MODEL GUIDANCE. OTHERWISE, THE MARINE LAYER
DEEPENS TO BETWEEN 2000 TO 2500 FEET TOMORROW INTO THE WEEKEND
BEFORE RIDGING RETURNS LATE WEEKEND AND COMPRESSES THE MARINE
LAYER. OVERNIGHT RECOVERIES IMPROVE ACROSS THE REGION AS THE MARINE
LAYER DEEPENS WHILE POOR TO FAIR DAYTIME HUMIDITY RETENTION
CONTINUES ABOVE 2000 FEET AND INTERIOR CENTRAL COAST. TYPICAL
BREEZY ONSHORE WINDS REMAIN EACH AFTERNOON AND EVENING, WHERE GUSTS
OF 25-35MPH ARE EXPECTED FOR FAVORED GAPS, PASSES, AND VALLEYS.
..DISCUSSION FROM SFOFWFEKA
A TROUGH IS GRADUALLY DEEPENING OVER THE WEST COAST AND THIS WILL
CONTINUE THROUGH FRIDAY. EACH DAY THIS WILL BRING COOLER
TEMPERATURES, HIGHER AFTERNOON RH AND BETTER RH RECOVERIES. ONE MORE
DAY OF LOCALLY ELEVATED FIRE WEATHER CONDITIONS CAN BE EXPECTED
TODAY WITH THE AFTERNOON BREEZES, ESPECIALLY AROUND THE KING RANGE
AND INTO SOUTHERN HUMBOLDT. THURSDAY THE MARINE LAYER CONTINUES TO
DEEPEN AND EXTEND FARTHER INLAND. AS THE TROUGH DEEPENS THIS BRINGS
A LOW 5 TO 10 PERCENT CHANCE FOR DRY THUNDERSTORMS THURSDAY IN THE
TRINITIES, YOLLA BOLLA MOUNTAINS, AND EASTERN DEL NORTE. THE
HIGHEST POTENTIAL, 10-15 PERCENT IS ON FRIDAY FOR MAINLY SISKIYOU
COUNTY AND POSSIBLY INTO SURROUNDING PORTIONS OF HUMBOLDT, TRINITY
AND DEL NORTE COUNTIES. THESE MAY LINGER INTO FRIDAY NIGHT FOR
SISKIYOU COUNTY AND PERHAPS FAR NORTHEAST DEL NORTE COUNTY.
#####################################################################
## ##
## COMPLETE A DISCUSSION FOR EACH ECCDA SEGMENT BELOW ##
## WHEN DONE CLICK TRANSMIT, PRODUCT SENT AS KMTRFWLMTR ##
## ##
#####################################################################
ECC010-130945-
ST HELENA ECC DISPATCH-
DISCUSSION FOR MARIN AND SONOMA AND NAPA COUNTIES
241 PM PDT WED AUG 12 2026
A SLIGHT (15%) CHANCE OF THUNDERSTORMS CONTINUES THROUGH EARLY
THURSDAY MORNING FOR MONTEREY AND SAN BENITO COUNTIES. CONFIDENCE
HAS INCREASED COMPARED TO EARLIER THIS MORNING DUE TO THE
OVERPERFORMANCE OF THUNDERSTORM ACTIVITY LATE THIS MORNING AND
AFTERNOON COMPARED TO MODEL GUIDANCE. OTHERWISE, THE MARINE LAYER
DEEPENS TO BETWEEN 2000 TO 2500 FEET TOMORROW INTO THE WEEKEND
BEFORE RIDGING RETURNS LATE WEEKEND AND COMPRESSES THE MARINE
LAYER. OVERNIGHT RECOVERIES IMPROVE ACROSS THE REGION AS THE MARINE
LAYER DEEPENS WHILE POOR TO FAIR DAYTIME HUMIDITY RETENTION
CONTINUES ABOVE 2000 FEET AND INTERIOR CENTRAL COAST. TYPICAL
BREEZY ONSHORE WINDS REMAIN EACH AFTERNOON AND EVENING, WHERE GUSTS
OF 25-35MPH ARE EXPECTED FOR FAVORED GAPS, PASSES, AND VALLEYS.
ECC014-130945-
MORGAN HILL ECC DISPATCH-
DISCUSSION FOR ALAMEDA AND CONTRA COSTA AND SANTA CLARA COUNTIES
241 PM PDT WED AUG 12 2026
A SLIGHT (15%) CHANCE OF THUNDERSTORMS CONTINUES THROUGH EARLY
THURSDAY MORNING FOR MONTEREY AND SAN BENITO COUNTIES. CONFIDENCE
HAS INCREASED COMPARED TO EARLIER THIS MORNING DUE TO THE
OVERPERFORMANCE OF THUNDERSTORM ACTIVITY LATE THIS MORNING AND
AFTERNOON COMPARED TO MODEL GUIDANCE. OTHERWISE, THE MARINE LAYER
DEEPENS TO BETWEEN 2000 TO 2500 FEET TOMORROW INTO THE WEEKEND
BEFORE RIDGING RETURNS LATE WEEKEND AND COMPRESSES THE MARINE
LAYER. OVERNIGHT RECOVERIES IMPROVE ACROSS THE REGION AS THE MARINE
LAYER DEEPENS WHILE POOR TO FAIR DAYTIME HUMIDITY RETENTION
CONTINUES ABOVE 2000 FEET AND INTERIOR CENTRAL COAST. TYPICAL
BREEZY ONSHORE WINDS REMAIN EACH AFTERNOON AND EVENING, WHERE GUSTS
OF 25-35MPH ARE EXPECTED FOR FAVORED GAPS, PASSES, AND VALLEYS.
ECC013-130945-
FELTON ECC DISPATCH-
DISCUSSION FOR SANTA CRUZ AND SAN MATEO COUNTIES
241 PM PDT WED AUG 12 2026
A SLIGHT (15%) CHANCE OF THUNDERSTORMS CONTINUES THROUGH EARLY
THURSDAY MORNING FOR MONTEREY AND SAN BENITO COUNTIES. CONFIDENCE
HAS INCREASED COMPARED TO EARLIER THIS MORNING DUE TO THE
OVERPERFORMANCE OF THUNDERSTORM ACTIVITY LATE THIS MORNING AND
AFTERNOON COMPARED TO MODEL GUIDANCE. OTHERWISE, THE MARINE LAYER
DEEPENS TO BETWEEN 2000 TO 2500 FEET TOMORROW INTO THE WEEKEND
BEFORE RIDGING RETURNS LATE WEEKEND AND COMPRESSES THE MARINE
LAYER. OVERNIGHT RECOVERIES IMPROVE ACROSS THE REGION AS THE MARINE
LAYER DEEPENS WHILE POOR TO FAIR DAYTIME HUMIDITY RETENTION
CONTINUES ABOVE 2000 FEET AND INTERIOR CENTRAL COAST. TYPICAL
BREEZY ONSHORE WINDS REMAIN EACH AFTERNOON AND EVENING, WHERE GUSTS
OF 25-35MPH ARE EXPECTED FOR FAVORED GAPS, PASSES, AND VALLEYS.
ECC018-130945-
MONTEREY ECC DISPATCH-
DISCUSSION FOR MONTEREY AND SAN BENITO COUNTY
241 PM PDT WED AUG 12 2026
A SLIGHT (15%) CHANCE OF THUNDERSTORMS CONTINUES THROUGH EARLY
THURSDAY MORNING FOR MONTEREY AND SAN BENITO COUNTIES. CONFIDENCE
HAS INCREASED COMPARED TO EARLIER THIS MORNING DUE TO THE
OVERPERFORMANCE OF THUNDERSTORM ACTIVITY LATE THIS MORNING AND
AFTERNOON COMPARED TO MODEL GUIDANCE. OTHERWISE, THE MARINE LAYER
DEEPENS TO BETWEEN 2000 TO 2500 FEET TOMORROW INTO THE WEEKEND
BEFORE RIDGING RETURNS LATE WEEKEND AND COMPRESSES THE MARINE
LAYER. OVERNIGHT RECOVERIES IMPROVE ACROSS THE REGION AS THE MARINE
LAYER DEEPENS WHILE POOR TO FAIR DAYTIME HUMIDITY RETENTION
CONTINUES ABOVE 2000 FEET AND INTERIOR CENTRAL COAST. TYPICAL
BREEZY ONSHORE WINDS REMAIN EACH AFTERNOON AND EVENING, WHERE GUSTS
OF 25-35MPH ARE EXPECTED FOR FAVORED GAPS, PASSES, AND VALLEYS.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page