830  
FNUS76 KMTR 031844  
FWSMTR  
 
SPOT FORECAST FOR F/V LAKE BAY GROUNDING...MARIN COUNTY OFFICE OF EMERGENCY MANAGEMENT  
NATIONAL WEATHER SERVICE SAN FRANCISCO CA  
1144 AM PDT THU SEP 3 2026  
 
FORECAST IS BASED ON FORECAST START TIME OF 1200 PDT ON SEPTEMBER 03.  
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER  
SERVICE.  
   
DISCUSSION
 
A WEAK FRONTAL BOUNDARY WILL MOVE THROUGH THE REGION  
TODAY BRINING PERIODS OF LIGHT RAIN THROUGH EARLY AFTERNOON. A  
MIX OF LOW AND HIGH LEVEL CLOUDS WILL ALSO PERSIST THROUGH MUCH OF  
THE DAY. WIND WILL BE FROM THE WEST-SOUTHWEST DURING THIS TIME  
AND AROUND 5 TO 10 KT WITH GUSTS UP TO 15 KT SHIFTING TO THE WEST  
AND NORTHWEST DURING THE AFTERNOON ONCE THE FRONT PASSES THROUGH.  
LIGHT WEST-NORTHWEST WINDS HOLD OVERNIGHT, WITH SKIES BECOMING  
MOSTLY CLOUDY. NORTHWESTERLY WINDS WILL INCREASE FRIDAY AFTERNOON  
TO 10 TO 15 KT WITH LOCALLY HIGHER GUSTS. DRY WEATHER IS FORECAST  
FOR FRIDAY.  
 
   
REST OF TODAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY. RAIN.  
MAX TEMPERATURE.....62-66.  
CHANCE OF PCPN......80 PERCENT.  
MARINE LAYER........NONE.  
SWELL HEIGHT........NORTHWEST SWELL 4 FEET.  
SWELL PERIOD........9 SECONDS.  
WIND WAVE...........1 FOOT.  
TIDES...............HIGH 6.1 FEET (MLLW) 04:23 PM PDT.  
   
TONIGHT
 
 
SKY/WEATHER.........MOSTLY CLOUDY.  
MIN TEMPERATURE.....52-56.  
CHANCE OF PCPN......10 PERCENT.  
MARINE LAYER........NONE.  
SWELL HEIGHT........WEST SWELL 4 FEET.  
SWELL PERIOD........10 SECONDS.  
WIND WAVE...........1 FOOT.  
TIDES...............LOW 0.3 FEET (MLLW) 11:37 PM PDT.  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY SUNNY.  
MAX TEMPERATURE.....62-66.  
CHANCE OF PCPN......0 PERCENT.  
MARINE LAYER........NONE.  
SWELL HEIGHT........NORTHWEST SWELL 4 FEET.  
SWELL PERIOD........11 SECONDS.  
WIND WAVE...........1 FOOT.  
TIDES...............HIGH 4.0 FEET (MLLW) 07:17 AM PDT.  
LOW 3.4 FEET (MLLW) 10:57 AM PDT.  
HIGH 6.1 FEET (MLLW) 05:27 PM PDT.  
LOW 0.1 FEET (MLLW) 11:56 PM PDT.  
 

 
FORECASTER...R_GASS  
REQUESTED BY...MICHELLE JENNINGS  
TYPE OF REQUEST...MARINE  
.TAG 2621115.1/MTR  
.DELDT 09/03/26  
.FORMATTERVERSION 2.0.0  
.EMAIL SECTORSFIMD@USCG.MIL,OEMDUTYOFFICER@MARINCOUNTY.GOV,SECTORIMD1@GMAIL.COM  
 
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