080
FNUS76 KEKA 191034
FWSEKA
SPOT FORECAST FOR COPPER...USFS
NATIONAL WEATHER SERVICE EUREKA CA
334 AM PDT SAT SEP 19 2026
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
IF YOU HAVE QUESTIONS OR CONCERNS REGARDING THIS FORECAST, PLEASE
CONTACT OUR OFFICE AT (707) 443-6484
PLEASE DO NOT RESPOND DIRECTLY IF YOU HAVE RECEIVED THIS IN AN EMAIL.
DISCUSSION
WITH BUILDING HIGH PRESSURE, DAYTIME TEMPERATURES
WILL TREND HIGHER THROUGH THE WEEKEND. STRONG THERMAL BELTS WILL
ALSO WORSEN RH RECOVERY AT MID AND UPPER SLOPES INTO EARLY NEXT
WEEK. WINDS WILL BE MOSTLY LIGHT AND TERRAIN DRIVEN. WARMER AND
DRIER CONDITIONS ON THE FORECAST RANGES WILL EXIST IN THE LOWER
ELEVATION VALLEYS.
REST OF TODAY
SKY/WEATHER.........SUNNY THEN BECOMING PARTLY CLOUDY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....70 TO 79.
MIN HUMIDITY........37 TO 25 PERCENT.
WIND (20 FT)........VARIABLE 1 TO 3 MPH.
MIXING HEIGHT.......1100-1700 FT AGL INCREASING TO 3000-3600 FT AGL
EARLY IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH NORTHWEST 2 TO 5 MPH LATE
IN THE MORNING.
TIME (PDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........2 2 2 2 3 3 3 16 16 16 49
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0
TEMP............52 53 58 66 71 74 77 79 79 78 78
RH..............66 66 57 48 39 38 33 32 32 37 43
20 FT WIND DIR..N N N N NE NE NE E E E W
20 FT WIND SPD..3 3 3 3 2 2 2 1 1 1 1
20 FT WIND GUST.6 5 5 5 3 3 3 2
MIX HGT (KFT)...1.1 1.2 1.2 1.2 1.7 1.7 1.7 3.6 3.6 3.6 3.0
TRANSP WIND DIR.NE NE NE NE NW NW NW NW NW NW N
TRANSP WIND SPD.5 5 5 5 2 2 2 2 2 2 5
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CWR.................0 PERCENT.
MIN TEMPERATURE.....AROUND 54.
MAX HUMIDITY........53 TO 58 PERCENT.
WIND (20 FT)........VARIABLE 1 TO 3 MPH...BECOMING NORTH AROUND 5
MPH AFTER MIDNIGHT, THEN...BECOMING VARIABLE 1
TO 3 MPH EARLY IN THE MORNING.
MIXING HEIGHT.......1100-3000 FT AGL.
TRANSPORT WINDS.....NORTH AROUND 5 MPHNORTHEAST AROUND 6 MPH LATE
IN THE EVENING.
TIME (PDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........49 49 41 41 41 25 25 25 45 45 45 44
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............74 70 65 61 61 60 59 59 59 58 57 56
RH..............51 61 65 60 60 58 53 49 47 45 45 45
20 FT WIND DIR..W W N N N N N N N N N N
20 FT WIND SPD..1 1 1 1 1 3 3 3 5 5 5 3
20 FT WIND GUST.2 2 2 2 2 5 5 5 7 7 7 6
MIX HGT (KFT)...3.0 3.0 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.1 1.1
TRANSP WIND DIR.N N N N N NE NE NE NE NE NE NE
TRANSP WIND SPD.5 5 5 5 5 6 6 6 6 6 6 6
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING SUNNY THEN BECOMING
PARTLY CLOUDY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....72 TO 82.
MIN HUMIDITY........35 TO 26 PERCENT.
WIND (20 FT)........VARIABLE 1 TO 3 MPH...BECOMING NORTHEAST AROUND
5 MPH EARLY IN THE MORNING, THEN...BECOMING
VARIABLE 1 TO 3 MPH LATE IN THE
MORNING...BECOMING WEST AROUND 6 MPH LATE IN
THE AFTERNOON.
MIXING HEIGHT.......1100-1300 FT AGL INCREASING TO 2400-3700 FT AGL
EARLY IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHEAST AROUND 6 MPH WEST 3 TO 6 MPH LATE IN
THE MORNING.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........44 44 20 20 20 17 17 17 25 25 25 44
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............55 54 55 60 68 73 77 79 81 81 81 79
RH..............47 47 49 46 40 35 35 32 32 33 37 44
20 FT WIND DIR..N N NE NE NE NE NE NE W W W W
20 FT WIND SPD..3 3 5 5 5 3 3 3 1 1 1 6
20 FT WIND GUST.6 6 7 7 7 5 5 5 8
MIX HGT (KFT)...1.1 1.1 1.2 1.2 1.2 1.3 1.3 1.3 3.7 3.7 3.7 2.4
TRANSP WIND DIR.NE NE NE NE NE W W W W W W NW
TRANSP WIND SPD.6 6 6 6 6 3 3 3 3 3 3 6
FORECASTER...WOOD
REQUESTED BY...STEFAN VAL
TYPE OF REQUEST...WILDFIRE
.TAG 2622043.2/EKA
.DELDT 09/19/26
.EMAIL CANCIC@FIRENET.GOV
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