186
FNUS76 KEKA 102029
FWSEKA
SPOT FORECAST FOR MILEPOST 18 SPOT FORECAST 8.9.26...USFS
NATIONAL WEATHER SERVICE EUREKA CA
129 PM PDT MON AUG 10 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
LOCALLY CRITICAL FIRE WEATHER CONDITIONS CAN BE
EXPECTED THROUGH MONDAY WITH THE AFTERNOON AND EVENING BREEZES.
WINDS WILL BE STRONGEST CHANNELED THROUGH THE TERRAIN AND
RIVER VALLEYS, WHERE GUSTS OF 15 TO 20 MPH HAVE BEEN RECORDED. A
SIMILAR WIND PATTERN WILL REMAIN TUESDAY. MINIMUM RH AND OVERNIGHT
RECOVERIES WILL IMPROVE NOTICEABLY TUESDAY WITH MOISTENING
WESTERLY FLOW AND LOWER DAYTIME HIGHS FROM THE BREAKDOWN OF THE
PERSISTENT RIDGE OF HIGH PRESSURE. A TROUGHING PATTERN THEN TAKES
SHAPE, WHICH WILL MAINTAIN GOOD RECOVERIES AND ALSO INCREASES
CHANCES FOR A DEEPENED MARINE LAYER TO INFILTRATE THE HOOPA
VALLEY.
REST OF TODAY
SKY/WEATHER.........SUNNY. SMOKE.
CWR.................0 PERCENT.
MAX TEMPERATURE.....95 FOR THE HIGHER ELEVATIONS AND 100 FOR THE VALLEY.
MIN HUMIDITY........22 PERCENT FOR THE HIGHER ELEVATIONS AND 15 PERCENT
FOR THE VALLEY.
WIND (20 FT)........NORTHWEST WINDS 5 TO 8 MPH WITH STRONGER GUSTS CHANNELED
THROUGH THE VALLEYS.
MIXING HEIGHT.......2200 TO 2900 FT AGL FOR THE HIGHER ELEVATIONS AND 4000
FT AGL FOR THE VALLEY.
TRANSPORT WINDS.....NORTHWEST 5 TO 8 MPH.
TIME (PDT) 2PM 3PM 4PM 5PM
SKY (%).........0 0 0 0
WEATHER COV.....DEF DEF DEF DEF
WEATHER TYPE....SMK SMK SMK SMK
TSTM COV........
CWR.............0 0 0 0
TEMP............93 94 94 94
RH..............20 20 20 21
20 FT WIND DIR..NW NW NW NW
20 FT WIND SPD..8 8 8 5
20 FT WIND GUST.10 10 10 6
MIX HGT (KFT)...3.0 3.0 3.0 2.8
TRANSP WIND DIR.NW NW NW NW
TRANSP WIND SPD.8 8 8 5
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR. SMOKE IN THE EVENING, THEN AREAS
OF SMOKE LATE IN THE EVENING. PATCHY SMOKE
AFTER MIDNIGHT.
CWR.................0 PERCENT.
MIN TEMPERATURE.....AROUND 59.
MAX HUMIDITY........55 TO 60 PERCENT FOR THE HIGHER ELEVATIONS AND 75
TO 80 PERCENT FOR THE VALLEY.
WIND (20 FT)........NORTHWEST WINDS AROUND 5 MPH EARLY IN THE
EVENING...BECOMING VARIABLE 1 TO 3 MPH.
MIXING HEIGHT.......500 TO 900 FT AGL FOR THE HIGHER ELEVATIONS AND
1500 TO 2000 FT AGL FOR THE VALLEY.
TRANSPORT WINDS.....NORTH 5 TO 6 MPH NORTHEAST AROUND 2 MPH EARLY IN
THE MORNING.
TIME (PDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........0 0 2 2 2 1 1 1 11 11 11 15
WEATHER COV.....DEF DEF DEF DEF DEF ARS ARS ARS 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............90 86 82 74 71 68 67 65 64 62 61 60
RH..............26 33 40 46 53 57 61 63 65 70 72 75
20 FT WIND DIR..NW NW NW NW NW N N N N N N N
20 FT WIND SPD..5 5 2 2 2 3 3 3 1 1 1 1
20 FT WIND GUST.6 6 3 3 3 5 5 5
MIX HGT (KFT)...2.8 2.8 1.8 1.8 1.8 1.4 1.4 1.4 1.4 1.4 1.4 1.4
TRANSP WIND DIR.NW NW NW NW NW N N N N N N NE
TRANSP WIND SPD.5 5 5 5 5 6 6 6 6 6 6 2
TUESDAY
SKY/WEATHER.........SUNNY. PATCHY SMOKE IN THE MORNING, THEN AREAS
OF SMOKE LATE IN THE MORNING. SMOKE LATE IN THE
AFTERNOON.
CWR.................0 PERCENT.
MAX TEMPERATURE.....84 TO 88 FOR THE HIGHER ELEVATIONS AND 95 FOR THE VALLEY.
MIN HUMIDITY........30 TO 35 PERCENT.
WIND (20 FT)........VARIABLE 2 TO 4 MPH...BECOMING NORTHWEST 5 TO 8
MPH LATE IN THE MORNING, WITH HIGHER GUSTS CHANNELED
THROUGH THE TERRAIN AND RIVER VALLEYS.
MIXING HEIGHT.......INCREASING TO 2100 TO 2500 FT AGL FOR THE HIGHER
ELEVATIONS AND 4000 FT AGL FOR THE VALLEY
TRANSPORT WINDS.....NORTHEAST AROUND 2 MPH NORTHWEST 6 TO 8 MPH LATE IN THE
MORNING.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........15 15 15 15 15 24 24 24 1 1 1 1
WEATHER COV.....PTY PTY PTY PTY PTY ARS ARS ARS ARS ARS ARS DEF
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............59 59 60 64 70 76 81 86 89 90 89 89
RH..............78 78 72 60 49 40 37 33 32 32 32 34
20 FT WIND DIR..N N NW NW NW NW NW NW W W W W
20 FT WIND SPD..1 1 1 1 1 5 5 5 8 8 8 6
20 FT WIND GUST. 6 6 6 10 10 10 7
MIX HGT (KFT)...1.4 1.4 1.4 1.4 1.4 1.8 1.8 1.8 3.0 3.0 3.0 2.7
TRANSP WIND DIR.NE NE NE NE NE NW NW NW NW NW NW NW
TRANSP WIND SPD.2 2 2 2 2 8 8 8 8 8 8 6
FORECASTER...WOOD
REQUESTED BY...JOEL BERG
TYPE OF REQUEST...WILDFIRE
.TAG 2619287.1/EKA
.DELDT 08/10/26
.EMAIL JENNIFER_R_ANDERSON@NPS.GOV,RBROWN@HOOPA-NSN.GOV,JOEL.BERG@USDA.GOV,LESTERWHITE67@GMAIL.COM,BMCKINNON@YUROKTRIBE.NSN.US
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