805
FNUS76 KEKA 090608
FWSEKA
SPOT FORECAST FOR MILEPOST 18 SPOT FORECAST 8.9.26...USFS
NATIONAL WEATHER SERVICE EUREKA CA
1108 PM PDT SAT AUG 8 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
LOCALIZED CRITICAL FIRE WEATHER IS FORECAST TO
CONTINUE THROUGH SUNDAY. RECOVERIES TONIGHT COULD REACH 60
PERCENT AT ABOUT 2100 FT, BUT COULD SHARPLY DECREASE WITH
ELEVATION. CONFIDENCE IN HUMIDITY RECOVERY IS LOW TO MODERATE WITH
SUCH A POTENTIAL SHARP GRADIENT. WIND SPEEDS WILL INCREASE BY
AFTERNOON, WITH SHELTERING OF GUSTS ON SOUTH FACING SLOPES.
DIURNAL WIND TRENDS WILL DRIVE MORNING UPSLOPE/UPVALLEY
TRANSITIONS. LIGHT VARIABLE MORNING BREEZES WILL TRANSITION TO
NORTHWEST AT 7 TO 10 MPH SUNDAY AFTERNOON, WITH GUSTS UP TO 12
MPH. GUSTS OF 20 MPH POSSIBLE ON WEST/NORTH SLOPES SUNDAY
AFTERNOON. OVERNIGHT HUMIDITY RECOVERY SUNDAY NIGHT IS FORECAST TO
REACH A MODERATE 65 TO 68 PERCENT AS WINDS DECOUPLE TO VARIABLE 2
TO 4 MPH. AGAIN, HUMIDITY LEVELS COULD DROP SHARPLY WITH
ELEVATION. ON MONDAY, AFTERNOON NORTHWEST WINDS WILL REACH 5 TO 7
MPH UNDER MIXING HEIGHTS EXTENDING TO 2200–3000 FT AGL. NOCTURNAL
INVERSIONS BELOW 1600 FT AGL WILL TRAP PATCHY SMOKE WITHIN THE
LOWER DRAINAGES (MILL CREEK/NORTON CREEK) THROUGH EARLY MORNING
BEFORE THERMAL MIXING CLEARS VALLEY INVERSIONS BY MIDDAY.
SUNDAY
SKY/WEATHER.........SUNNY. AREAS OF SMOKE.
CWR.................0 PERCENT.
MAX TEMPERATURE.....AROUND 93-98.
MIN HUMIDITY........26 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 7 TO 10 MPH.
MIXING HEIGHT.......1600-2400 FT AGL.
TRANSPORT WINDS.....NORTHWEST 8 TO 9 MPH.
TIME (PDT) 2PM 3PM 4PM 5PM
SKY (%).........2 2 2 1
WEATHER COV.....ARS ARS ARS ARS
WEATHER TYPE....SMK SMK SMK SMK
TSTM COV........
CWR.............0 0 0 0
TEMP............91 93 92 92
RH..............26 26 26 28
20 FT WIND DIR..NW NW NW NW
20 FT WIND SPD..9 9 9 8
20 FT WIND GUST.12 12 12 10
MIX HGT (KFT)...2.4 2.4 2.4 1.6
TRANSP WIND DIR.NW NW NW NW
TRANSP WIND SPD.9 9 9 8
SUNDAY NIGHT
SKY/WEATHER.........CLEAR. AREAS OF SMOKE IN THE EVENING, THEN
PATCHY SMOKE LATE IN THE EVENING.
CWR.................0 PERCENT.
MIN TEMPERATURE.....AROUND 59.
MAX HUMIDITY........68 PERCENT.
WIND (20 FT)........NORTHWEST WINDS AROUND 8 MPH EARLY IN THE
EVENING...BECOMING VARIABLE 2 TO 4 MPH.
MIXING HEIGHT.......400 FT AGL.
TRANSPORT WINDS.....NORTHWEST AROUND 8 MPHNORTH AROUND 5 MPH LATE
IN THE EVENING.
TIME (PDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........1 1 6 6 6 5 5 5 4 4 4 5
WEATHER COV.....ARS ARS ARS ARS ARS PTY PTY PTY PTY PTY PTY PTY
WEATHER TYPE....SMK SMK SMK SMK SMK SMK SMK SMK SMK SMK SMK SMK
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............88 84 81 73 71 69 67 65 64 62 61 59
RH..............31 36 42 48 50 53 56 58 60 62 66 68
20 FT WIND DIR..NW NW NW NW NW NE NE NE NE NE NE NE
20 FT WIND SPD..8 8 2 2 2 3 3 3 3 3 3 2
20 FT WIND GUST.10 10 3 3 3 5 5 5 5 5 5 3
MIX HGT (KFT)...1.6 1.6 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4
TRANSP WIND DIR.NW NW NW NW NW N N N N N N N
TRANSP WIND SPD.8 8 8 8 8 5 5 5 5 5 5 5
MONDAY
SKY/WEATHER.........SUNNY. PATCHY SMOKE EARLY IN THE MORNING.
CWR.................0 PERCENT.
MAX TEMPERATURE.....AROUND 93.
MIN HUMIDITY........25 PERCENT.
WIND (20 FT)........VARIABLE 2 TO 4 MPH...BECOMING NORTHWEST 5 TO 7
MPH EARLY IN THE AFTERNOON.
MIXING HEIGHT.......400-900 FT AGL INCREASING TO 2200-3000 FT AGL
LATE IN THE MORNING.
TRANSPORT WINDS.....NORTH AROUND 5 MPHNORTHWEST AROUND 7 MPH LATE
IN THE MORNING.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........5 5 4 4 4 0 0 0 0 0 0 0
WEATHER COV.....PTY PTY
WEATHER TYPE....SMK SMK
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............59 59 60 64 71 77 83 87 92 92 92 92
RH..............69 68 66 54 43 34 30 27 26 25 26 28
20 FT WIND DIR..NE NE NE NE NE N N N NW NW NW W
20 FT WIND SPD..2 2 3 3 3 3 3 3 6 6 6 5
20 FT WIND GUST.3 3 5 5 5 5 5 5 7 7 7 6
MIX HGT (KFT)...0.4 0.4 0.9 0.9 0.9 2.8 2.8 2.8 3.0 3.0 3.0 2.2
TRANSP WIND DIR.N N N N N NW NW NW NW NW NW W
TRANSP WIND SPD.5 5 5 5 5 7 7 7 7 7 7 7
FORECASTER...HEINLEIN
REQUESTED BY...JOEL BERG
TYPE OF REQUEST...WILDFIRE
.TAG 2619287.0/EKA
.DELDT 08/08/26
.EMAIL JENNIFER_R_ANDERSON@NPS.GOV,JOEL.BERG@USDA.GOV,BMCKINNON@YUROKTRIBE.NSN.US,LESTERWHITE67@GMAIL.COM,RBROWN@HOOPA-NSN.GOV
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