709
FNUS76 KMTR 201633
FWSMTR
SPOT FORECAST FOR JEWEL LAKE PILE BURN...EAST BAY REGIONAL PARK DISTRICT
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
833 AM PST TUE JAN 20 2026
FORECAST IS BASED ON IGNITION TIME OF 0700 PST ON JANUARY 21.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
LARGELY TRANQUIL CONDITIONS ARE FORECAST FOR WEDNESDAY AND
THURSDAY WITH MORNING OFFSHORE WINDS BECOMING ONSHORE MID-MORNING
AND INTO THE AFTERNOON. WIND SPEEDS/GUSTS ARE ANTICIPATED TO
REMAIN UNDER 10 MPH. AFTERNOON MIN RH WILL DIP DOWN INTO THE
60-70% RANGE WITH OVERNIGHT RH ABOVE 80%. MIXING HEIGHTS LARGELY
BELOW 1000 FEET AND TRANSPORT WINDS UNDER 10 MPH MAY EQUATE TO
POOR VENTILATION AND/OR DISPERSION, ESPECIALLY IN DURING THE
EVENING/OVERNIGHT TIME PERIODS.
WEDNESDAY
SKY/WEATHER.........CLOUDY.
MAX TEMPERATURE.....57-61.
MIN HUMIDITY........64-68 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 5 TO 6 MPH SHIFTING TO THE
NORTHWEST AROUND 5 MPH IN THE AFTERNOON.
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIXING HEIGHT.......600 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 4 MPH.
MARINE LAYER........NONE.
WEDNESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY.
MIN TEMPERATURE.....46-50.
MAX HUMIDITY........83-87 PERCENT.
WIND (20 FT)........WEST WINDS AROUND 5 MPH.
CWR.................1 PERCENT.
CHANCE OF THUNDER...1 PERCENT.
MIXING HEIGHT.......0 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 7 MPH.
MARINE LAYER........NONE.
THURSDAY
SKY/WEATHER.........PARTLY SUNNY.
MAX TEMPERATURE.....57-61.
MIN HUMIDITY........70-74 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 6 TO 7 MPH.
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIXING HEIGHT.......700 FT AGL.
TRANSPORT WINDS.....SOUTHWEST AROUND 7 MPH.
MARINE LAYER........NONE.
FORECASTER...L_BAIN
REQUESTED BY...COLIN GALLAGHER
TYPE OF REQUEST...PRESCRIBED
.TAG 2600622.0/MTR
.DELDT 01/20/26
.FORMATTERVERSION 2.0.0
.EMAIL CGALLAGHER@EBPARKS.ORG
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