620
FNUS76 KEKA 082206
FWSEKA
SPOT FORECAST FOR MP 18 FIRE...NCIMT
NATIONAL WEATHER SERVICE EUREKA CA
306 PM 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
WARM AND DRY CONDITIONS CONTINUE THROUGH THURSDAY.
WINDS WILL BE DIURNAL WITH BREEZY NORTHWESTERLIES IN THE
AFTERNOONS AND BREEZY EASTERLIES OVERNIGHT. THE EAST WINDS MAY BE
GUST UP TO 20 MPH OVER THE HIGHER TERRAIN. HIGH PRESSURE WEAKENS
FRIDAY RETURNING COOLER CONDITIONS AND DEEPENING THE MARINE LAYER.
A WEAK FRONT SATURDAY MORNING WILL BRING A VERY LOW CHANCE FOR
RAIN, WITH ONLY A 20% CHANCE FOR ANY MEASURABLE PRECIPITATION
(0.01"). WETTING RAIN (OVER 0.1") CHANCES ARE AROUND 5%. COOLER
AND BREEZIER CONDITIONS ARE LIKELY SATURDAY AFTERNOON. MARINE
STRATUS MAY REACH THE VALLEYS BOTH SATURDAY MORNING AND SUNDAY
MORNING, WITH HIGHER CONFIDENCE ON SUNDAY.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CWR.................0 PERCENT.
MIN TEMPERATURE.....52-59.
MAX HUMIDITY........45-80 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 5 TO 10 MPH EARLY IN THE
EVENING...BECOMING EAST 5 TO 10 MPH.
MIXING HEIGHT.......200 FT AGL.
TRANSPORT WINDS.....NORTH AROUND 6 MPH, EAST LATE IN THE EVENING.
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
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............76 73 69 65 65 65 64 63 62 61 60 59
RH..............37 43 44 45 46 45 45 43 43 41 37 36
20 FT WIND DIR..NW NW NW NW NW E E E NE NE NE E
20 FT WIND SPD..7 7 3 3 3 6 6 6 8 8 8 8
20 FT WIND GUST.10 10 7 7 7 10 10 10 14 14 14 14
MIX HGT (KFT)...2.4 2.4 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2
TRANSP WIND DIR.N N N N N E E E E E E E
TRANSP WIND SPD.6 6 6 6 6 6 6 6 6 6 6 6
WEDNESDAY
SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....85-99.
MIN HUMIDITY........11-14 PERCENT.
WIND (20 FT)........EAST WINDS 5 TO 8 MPH IN THE MORNING...BECOMING
WEST 5 TO 10 MPH IN THE AFTERNOON.
MIXING HEIGHT.......2700 FT AGL EARLY IN THE AFTERNOON.
TRANSPORT WINDS.....EAST AROUND 6 MPH, WEST LATE IN THE MORNING,
THEN NORTH LATE IN THE AFTERNOON.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........1 1 0 0 0 1 1 1 5 5 5 5
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............59 58 60 65 72 77 80 84 85 86 86 83
RH..............36 37 38 38 28 25 22 18 14 15 18 25
20 FT WIND DIR..E E NE NE NE W W W W W W NW
20 FT WIND SPD..8 8 7 7 7 4 4 4 7 7 7 6
20 FT WIND GUST.14 14 13 13 13 5 5 5 9 9 9 9
MIX HGT (KFT)...0.2 0.2 0.2 0.2 0.2 0.6 0.6 0.6 2.7 2.7 2.7 1.8
TRANSP WIND DIR.E E E E E W W W W W W N
TRANSP WIND SPD.6 6 6 6 6 6 6 6 6 6 6 6
WEDNESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CWR.................0 PERCENT.
MIN TEMPERATURE.....55-64.
MAX HUMIDITY........45-80 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 5 TO 10 MPH EARLY IN THE
EVENING...BECOMING EAST 5 TO 10 MPH EARLY IN THE
MORNING.
MIXING HEIGHT.......200 FT AGL.
TRANSPORT WINDS.....NORTH AROUND 6 MPH, NORTHEAST 3 TO 5 MPH LATE IN
THE EVENING.
TIME (PDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........5 5 18 18 18 10 10 10 19 19 19 30
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............81 76 69 68 69 69 68 67 67 66 65 64
RH..............35 43 44 45 43 40 41 38 38 39 31 34
20 FT WIND DIR..NW NW NW NW NW E E E E E E E
20 FT WIND SPD..6 6 3 3 3 4 4 4 3 3 3 7
20 FT WIND GUST.9 9 6 6 6 7 7 7 5 5 5 13
MIX HGT (KFT)...1.8 1.8 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2
TRANSP WIND DIR.N N N N N NE NE NE NE NE NE NE
TRANSP WIND SPD.6 6 6 6 6 3 3 3 3 3 3 5
THURSDAY
SKY/WEATHER.........PARTLY CLOUDY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....80-96.
MIN HUMIDITY........18-22 PERCENT.
WIND (20 FT)........EAST WINDS 5 TO 8 MPH IN THE MORNING...BECOMING
WEST 5 TO 10 MPH EARLY IN THE AFTERNOON.
MIXING HEIGHT.......1600 FT AGL.
TRANSPORT WINDS.....NORTHEAST AROUND 5 MPH, WEST AROUND 7 MPH LATE IN
THE MORNING, THEN NORTH AROUND 5 MPH LATE IN THE
AFTERNOON.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........30 30 34 34 34 36 36 36 56 56 56 55
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............63 63 64 67 71 75 78 80 81 81 80 78
RH..............37 40 43 40 33 27 23 20 21 23 28 35
20 FT WIND DIR..E E E E E W W W W W W W
20 FT WIND SPD..7 7 6 6 6 3 3 3 6 6 6 6
20 FT WIND GUST.13 13 10 10 10 5 5 5 9 9 9 9
MIX HGT (KFT)...0.2 0.2 0.2 0.2 0.2 0.3 0.3 0.3 1.6 1.6 1.6 1.1
TRANSP WIND DIR.NE NE NE NE NE W W W W W W N
TRANSP WIND SPD.5 5 5 5 5 7 7 7 7 7 7 5
FORECAST DAYS 3 THROUGH 5
FRIDAY
MOSTLY CLEAR. LOWS IN THE MID TO UPPER 50S. HIGHS 72 TO 86.
WEST WINDS 5 TO 10 MPH.
SATURDAY
COOLER. MOSTLY CLEAR. SLIGHT CHANCE OF RAIN. LOWS NEAR 50. HIGHS 60 TO 72.
WEST WINDS 5 TO 15 MPH.
SUNDAY
MOSTLY CLEAR. LOWS IN THE 40S. HIGHS 68 TO 81. WINDS GENERALLY
LESS THAN 5 MPH.
OUTLOOK FOR MONDAY SEPTEMBER 14 THROUGH FRIDAY SEPTEMBER 18
FOR NW CALIF...NEAR NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
FORECASTER...BOOMSMA
REQUESTED BY...COLLIN EWING
TYPE OF REQUEST...WILDFIRE
.TAG 2621383.1/EKA
.DELDT 09/08/26
.EMAIL 2026.MP18.PLANS@FIRENET.GOV
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