102
FNUS86 KMTR 262129
FWLMTR
ECCDA DISCUSSIONS
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
229 PM PDT TUE MAY 26 2026
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## DISCUSSIONS FROM THE LATEST FWF BELOW ##
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..DISCUSSION FROM SFOFWFMTR
IN WAKE OF AN EARLY MORNING FRONTAL PASSAGE, GUSTY NORTHWEST
WINDS PREVAIL WITH GUSTS THIS AFTERNOON AND EVENING FORECAST TO
REACH UP TO ABOUT 50 MPH IN THE FAVORED PEAKS AND PASSES. WINDS
BEGIN TO DIMINISH LATE THIS EVENING AND INTO THE OVERNIGHT BEFORE
INCREASING ONCE AGAIN WEDNESDAY AFTERNOON AND EVENING, HOWEVER WE
ARE FORECASTING WINDS TO BE WEAKER ON WEDNESDAY. THERE REMAINS A
LOW END CHANCE OF RAIN SHOWERS AND THUNDERSTORMS (LESS THAN 10%
CHANCE) ON BOTH WEDNESDAY AND THURSDAY AFTERNOONS AS A CUT-OFF LOW
LINGERS OVER THE BAY AREA AND CENTRAL COAST. THUS, DAYTIME
HEATING WILL INCREASE INSTABILITY EACH AFTERNOON. THE PATTERN
CHANGES FRIDAY, AS THE UPPER LOW MOVES EAST AND HIGH PRESSURE
BUILDS IN. THIS SHOULD KICK OFF A WARMING AND DRYING TREND FOR THE
UPCOMING WEEKEND.
..DISCUSSION FROM SFOFWFEKA
SHOWER ACTIVITY AND THUNDERSTORM OVER THE INTERIOR ARE EXPECTED
THROUGH THURSDAY. THERE IS A SLIGHT CHANCE (10-20%) OF
THUNDERSTORMS TODAY ACROSS INTERIOR DEL NORTE, INTERIOR HUMBOLDT
AND TRINITY COUNTIES. THUNDERSTORM CHANCES SLIGHTLY DIMINISH ON
WENDESDAY (10-15%) AND SHIFT TO NORTHEASTERN TRINITY. AN
INCREASING THUNDERTSORM CHANCE ON THURSDAY (15-30%) EXISTS ACROSS
INTERIOR DEL NORTE, INTERIOR HUMBOLDT, NORTHEASTERN MENDOCINO,
NORTHERN LAKE AND TRINITY COUNTIES. THE HIGHEST CHANCES (20-30%)
IN TRINITY COUNTY. LIGHTNING STRIKES, BRIEF HEAVY DOWNPOURS AND
GUSTY, ERRATIC WINDS ARE POSSIBLE WITH THE STRONGEST STORMS.
BREEZY NW WINDS WITH GUSTS RANGING BETWEEN 25 TO 35 MPH ARE
EXPECTED TONIGHT THROUGH WEDNESDAY OVER THE EXPOSED RIDGES AND
CHANNELED TERRAIN ALIGNED WITH THE WIND DIRECTION. ENHANCED FIRE
WEATHER THREAT EXISTS FOR ZONES 418 AND 421 DUE TO GUSTS UP TO 40
MPH AND LOW DAYTIME RH VALUES AROUND 35 PERCENT AND OVERNIGHT
RECOVERY VALUES AROUND 70 PERCENT.
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## COMPLETE A DISCUSSION FOR EACH ECCDA SEGMENT BELOW ##
## WHEN DONE CLICK TRANSMIT, PRODUCT SENT AS KMTRFWLMTR ##
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ECC010-270930-
ST HELENA ECC DISPATCH-
DISCUSSION FOR MARIN AND SONOMA AND NAPA COUNTIES
229 PM PDT TUE MAY 26 2026
IN WAKE OF AN EARLY MORNING FRONTAL PASSAGE, GUSTY NORTHWEST
WINDS PREVAIL WITH GUSTS THIS AFTERNOON AND EVENING FORECAST TO
REACH UP TO ABOUT 50 MPH IN THE FAVORED PEAKS AND PASSES. WINDS
BEGIN TO DIMINISH LATE THIS EVENING AND INTO THE OVERNIGHT BEFORE
INCREASING ONCE AGAIN WEDNESDAY AFTERNOON AND EVENING, HOWEVER WE
ARE FORECASTING WINDS TO BE WEAKER ON WEDNESDAY. THERE REMAINS A
LOW END CHANCE OF RAIN SHOWERS AND THUNDERSTORMS (LESS THAN 10%
CHANCE) ON BOTH WEDNESDAY AND THURSDAY AFTERNOONS AS A CUT-OFF LOW
LINGERS OVER THE BAY AREA AND CENTRAL COAST. THUS, DAYTIME
HEATING WILL INCREASE INSTABILITY EACH AFTERNOON. THE PATTERN
CHANGES FRIDAY, AS THE UPPER LOW MOVES EAST AND HIGH PRESSURE
BUILDS IN. THIS SHOULD KICK OFF A WARMING AND DRYING TREND FOR THE
UPCOMING WEEKEND.
ECC014-270930-
MORGAN HILL ECC DISPATCH-
DISCUSSION FOR ALAMEDA AND CONTRA COSTA AND SANTA CLARA COUNTIES
229 PM PDT TUE MAY 26 2026
IN WAKE OF AN EARLY MORNING FRONTAL PASSAGE, GUSTY NORTHWEST
WINDS PREVAIL WITH GUSTS THIS AFTERNOON AND EVENING FORECAST TO
REACH UP TO ABOUT 50 MPH IN THE FAVORED PEAKS AND PASSES. WINDS
BEGIN TO DIMINISH LATE THIS EVENING AND INTO THE OVERNIGHT BEFORE
INCREASING ONCE AGAIN WEDNESDAY AFTERNOON AND EVENING, HOWEVER WE
ARE FORECASTING WINDS TO BE WEAKER ON WEDNESDAY. THERE REMAINS A
LOW END CHANCE OF RAIN SHOWERS AND THUNDERSTORMS (LESS THAN 10%
CHANCE) ON BOTH WEDNESDAY AND THURSDAY AFTERNOONS AS A CUT-OFF LOW
LINGERS OVER THE BAY AREA AND CENTRAL COAST. THUS, DAYTIME
HEATING WILL INCREASE INSTABILITY EACH AFTERNOON. THE PATTERN
CHANGES FRIDAY, AS THE UPPER LOW MOVES EAST AND HIGH PRESSURE
BUILDS IN. THIS SHOULD KICK OFF A WARMING AND DRYING TREND FOR THE
UPCOMING WEEKEND.
ECC013-270930-
FELTON ECC DISPATCH-
DISCUSSION FOR SANTA CRUZ AND SAN MATEO COUNTIES
229 PM PDT TUE MAY 26 2026
IN WAKE OF AN EARLY MORNING FRONTAL PASSAGE, GUSTY NORTHWEST
WINDS PREVAIL WITH GUSTS THIS AFTERNOON AND EVENING FORECAST TO
REACH UP TO ABOUT 50 MPH IN THE FAVORED PEAKS AND PASSES. WINDS
BEGIN TO DIMINISH LATE THIS EVENING AND INTO THE OVERNIGHT BEFORE
INCREASING ONCE AGAIN WEDNESDAY AFTERNOON AND EVENING, HOWEVER WE
ARE FORECASTING WINDS TO BE WEAKER ON WEDNESDAY. THERE REMAINS A
LOW END CHANCE OF RAIN SHOWERS AND THUNDERSTORMS (LESS THAN 10%
CHANCE) ON BOTH WEDNESDAY AND THURSDAY AFTERNOONS AS A CUT-OFF LOW
LINGERS OVER THE BAY AREA AND CENTRAL COAST. THUS, DAYTIME
HEATING WILL INCREASE INSTABILITY EACH AFTERNOON. THE PATTERN
CHANGES FRIDAY, AS THE UPPER LOW MOVES EAST AND HIGH PRESSURE
BUILDS IN. THIS SHOULD KICK OFF A WARMING AND DRYING TREND FOR THE
UPCOMING WEEKEND.
ECC018-270930-
MONTEREY ECC DISPATCH-
DISCUSSION FOR MONTEREY AND SAN BENITO COUNTY
229 PM PDT TUE MAY 26 2026
IN WAKE OF AN EARLY MORNING FRONTAL PASSAGE, GUSTY NORTHWEST
WINDS PREVAIL WITH GUSTS THIS AFTERNOON AND EVENING FORECAST TO
REACH UP TO ABOUT 50 MPH IN THE FAVORED PEAKS AND PASSES. WINDS
BEGIN TO DIMINISH LATE THIS EVENING AND INTO THE OVERNIGHT BEFORE
INCREASING ONCE AGAIN WEDNESDAY AFTERNOON AND EVENING, HOWEVER WE
ARE FORECASTING WINDS TO BE WEAKER ON WEDNESDAY. THERE REMAINS A
LOW END CHANCE OF RAIN SHOWERS AND THUNDERSTORMS (LESS THAN 10%
CHANCE) ON BOTH WEDNESDAY AND THURSDAY AFTERNOONS AS A CUT-OFF LOW
LINGERS OVER THE BAY AREA AND CENTRAL COAST. THUS, DAYTIME
HEATING WILL INCREASE INSTABILITY EACH AFTERNOON. THE PATTERN
CHANGES FRIDAY, AS THE UPPER LOW MOVES EAST AND HIGH PRESSURE
BUILDS IN. THIS SHOULD KICK OFF A WARMING AND DRYING TREND FOR THE
UPCOMING WEEKEND.
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