409
FNUS76 KEKA 081338
FWSEKA
SPOT FORECAST FOR MP 18 FIRE...NCIMT
NATIONAL WEATHER SERVICE EUREKA CA
638 AM PDT TUE SEP 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
OVERNIGHT RECOVERY RH VALUES UP TO 40% THIS MORNING.
NORTHEAST WINDS EASING FROM 6-8MPH TO 3-2MPH BY THE LATE MORNING,
TURNING SOUTHEAST AROUND NOON. WINDS VEER WESTERLY BY THE LATE AFTERNOON
AND BUILD TO 7-9MPH AROUND 5PM AND EASING BY SUNSET OUT OF THE NNW AT 1-2MPH.
HIGH TODAY OF 81-82F WITH A MINIMUM RH OF 20-22%. WINDS VEER ENE OVERNIGHT INTO
WEDNESDAY AT 5-6MPH WITH RH RECOVERY VALUES RANGING 32-40%. WINDS SWITCH TO A WESTERLY
BEARING BY LATE MORNING, BUILDING FROM 1-3MPH IN THE AFTERNOON AND UP TO 5MPH BY THE
EARLY EVENING. MINIMUM RH VALUES WEDNESDAY AROUND 15-17% AND A HIGH TEMP OF 85-87F.
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING SUNNY THEN BECOMING
MOSTLY CLOUDY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....76-84.
MIN HUMIDITY........19-24 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 5 TO 7 MPH IN THE
MORNING...BECOMING VARIABLE 2 TO 4 MPH,
THEN...BECOMING WEST 5 TO 8 MPH EARLY IN THE
AFTERNOON.
MIXING HEIGHT.......200-1100 FT AGL INCREASING TO 2700-4100 FT AGL
EARLY IN THE AFTERNOON.
TRANSPORT WINDS.....EAST AROUND 6 MPHWEST 5 TO 6 MPH LATE IN THE
MORNING.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........48 48 41 41 41 15 15 15 16 16 16 67
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............56 54 57 61 68 73 76 79 80 80 80 79
RH..............53 52 50 47 38 32 30 24 20 20 23 31
20 FT WIND DIR..NE NE NE NE NE W W W W W W NW
20 FT WIND SPD..6 6 5 5 5 2 2 2 6 6 6 8
20 FT WIND GUST.8 8 6 6 6 9
MIX HGT (KFT)...0.2 0.2 0.2 0.2 0.2 1.1 1.1 1.1 4.1 4.1 4.1 2.7
TRANSP WIND DIR.E E E E E W W W W W W NW
TRANSP WIND SPD.6 6 6 6 6 5 5 5 5 5 5 6
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY THEN
BECOMING CLEAR.
CWR.................0 PERCENT.
MIN TEMPERATURE.....AROUND 60.
MAX HUMIDITY........41-49 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 5 TO 8 MPH EARLY IN THE
EVENING...BECOMING VARIABLE 2 TO 5 MPH,
THEN...BECOMING EAST 5 TO 8 MPH LATE IN THE
EVENING.
MIXING HEIGHT.......2700 FT AGL DECREASING TO 200 FT AGL EARLY IN
THE EVENING.
TRANSPORT WINDS.....NORTHWEST AROUND 6 MPHEAST AROUND 5 MPH LATE IN
THE EVENING, THENSOUTHEAST AROUND 6 MPH EARLY
IN THE MORNING.
TIME (PDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........67 67 50 50 50 0 0 0 0 0 0 1
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............76 73 69 65 65 65 65 64 64 63 61 61
RH..............38 42 42 44 45 45 43 41 41 40 37 36
20 FT WIND DIR..NW NW N N N E E E E E E E
20 FT WIND SPD..8 8 3 3 3 6 6 6 7 7 7 8
20 FT WIND GUST.9 9 9 9 9 10
MIX HGT (KFT)...2.7 2.7 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2
TRANSP WIND DIR.NW NW NW NW NW E E E E E E SE
TRANSP WIND SPD.6 6 6 6 6 5 5 5 5 5 5 6
WEDNESDAY
SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....82-90.
MIN HUMIDITY........14-19 PERCENT.
WIND (20 FT)........EAST WINDS 5 TO 8 MPH IN THE MORNING...BECOMING
VARIABLE 2 TO 4 MPH, THEN...BECOMING WEST 5 TO
6 MPH LATE IN THE AFTERNOON.
MIXING HEIGHT.......200-700 FT AGL INCREASING TO 2100-3200 FT AGL
EARLY IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHEAST AROUND 6 MPHWEST AROUND 3 MPH LATE IN
THE MORNING, THENNORTH AROUND 5 MPH LATE IN THE
AFTERNOON.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........1 1 0 0 0 2 2 2 5 5 5 9
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............60 59 61 66 73 78 81 84 85 86 86 83
RH..............36 37 39 37 29 25 23 18 16 16 19 26
20 FT WIND DIR..E E E E E W W W W W W W
20 FT WIND SPD..8 8 7 7 7 3 3 3 4 4 4 6
20 FT WIND GUST.10 10 8 8 8 5 5 5
MIX HGT (KFT)...0.2 0.2 0.2 0.2 0.2 0.7 0.7 0.7 3.2 3.2 3.2 2.1
TRANSP WIND DIR.SE SE SE SE SE W W W W W W N
TRANSP WIND SPD.6 6 6 6 6 3 3 3 3 3 3 5
OUTLOOK FOR SUNDAY SEPTEMBER 13 THROUGH THURSDAY SEPTEMBER 17
FOR NW CALIF...NEAR NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
FORECASTER...SWAFFORD
REQUESTED BY...COLLIN EWING
TYPE OF REQUEST...WILDFIRE
.TAG 2621385.0/EKA
.DELDT 09/08/26
.EMAIL 2026.MP18.PLANS@FIRENET.GOV
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