929
FNUS76 KEKA 092225
FWSEKA
SPOT FORECAST FOR MP 18 FIRE...NCIMT
NATIONAL WEATHER SERVICE EUREKA CA
325 PM PDT WED SEP 9 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.
OFFSHORE FLOW WEAKENS SLIGHTLY AND ONSHORE WINDS STRENGTHEN
THURSDAY AFTERNOON. TROUGHING ARRIVES FRIDAY STARTING A MORE
DRAMATIC COOLING TREND. A WEAK FRONTAL PASSAGE SATURDAY AFTERNOON
WILL BRING A CHANCE FOR RAIN AND HAS BEEN TRENDING SLIGHTLY
WETTER. THE CHANCE FOR ANY RAIN IS AROUND 50%, WHILE THE CHANCE
FOR WETTING RAIN (0.1 INCHES OR MORE) HAS GROWN TO 25%. THE
CURRENT FORECAST IS FOR JUST FOR 0.01 INCHES AT THIS MOMENT. THERE
IS A VERY UNLIKELY CHANCE (LESS THAN 10%) OF OVER 1/3 OF AN INCH
OF RAIN.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CWR.................0 PERCENT.
MIN TEMPERATURE.....54-66.
MAX HUMIDITY........38-76 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 5 TO 10 MPH IN THE
EVENING...BECOMING EAST 3 TO 5 MPH.
MIXING HEIGHT.......200 FT AGL.
TRANSPORT WINDS.....NORTH AROUND 6 MPH, NORTHEAST AROUND 3 MPH LATE
IN THE EVENING.
TIME (PDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........13 13 27 27 27 14 14 14 21 21 21 27
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............84 79 75 71 71 71 70 69 68 68 66 65
RH..............32 42 43 44 41 38 38 37 36 37 27 31
20 FT WIND DIR..NW NW N N N NE NE NE E E E NE
20 FT WIND SPD..7 7 5 5 5 4 4 4 3 3 3 4
20 FT WIND GUST.9 9 7 7 7 8 8 8 7 7 7 7
MIX HGT (KFT)...2.3 2.3 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 3
THURSDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....77-92.
MIN HUMIDITY........20 PERCENT.
WIND (20 FT)........VARIABLE 2 TO 5 MPH...BECOMING WEST 5 TO 10 MPH
LATE IN THE MORNING.
MIXING HEIGHT.......800 FT AGL.
TRANSPORT WINDS.....NORTHEAST AROUND 3 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 (%).........27 27 15 15 15 15 15 15 12 12 12 14
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............64 63 65 68 72 76 78 80 81 80 81 77
RH..............34 36 42 41 29 23 21 18 18 20 23 31
20 FT WIND DIR..NE NE E E E W W W W W W NW
20 FT WIND SPD..4 4 3 3 3 6 6 6 9 9 9 8
20 FT WIND GUST.7 7 6 6 6 8 8 8 13 13 13 12
MIX HGT (KFT)...0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.8 0.8 0.8 0.7
TRANSP WIND DIR.NE NE NE NE NE NW NW NW NW NW NW NW
TRANSP WIND SPD.3 3 3 3 3 8 8 8 8 8 8 6
THURSDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CWR.................0 PERCENT.
MIN TEMPERATURE.....51-57.
MAX HUMIDITY........53-82 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 5 TO 10 MPH IN THE
EVENING...BECOMING VARIABLE 2 TO 4 MPH,
THEN...BECOMING NORTH AROUND 5 MPH AFTER
MIDNIGHT.
MIXING HEIGHT.......200 FT AGL.
TRANSPORT WINDS.....NORTH 5 TO 6 MPH, EAST AROUND 3 MPH EARLY IN THE
MORNING.
TIME (PDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........14 14 18 18 18 3 3 3 4 4 4 4
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............75 71 64 63 62 62 61 60 59 58 58 56
RH..............42 54 56 57 58 57 56 54 54 53 54 55
20 FT WIND DIR..NW NW NW NW NW NW NW NW N N N E
20 FT WIND SPD..8 8 5 5 5 4 4 4 5 5 5 4
20 FT WIND GUST.12 12 8 8 8 7 7 7 7 7 7 7
MIX HGT (KFT)...0.7 0.7 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 NE NE NE NE NE NE E
TRANSP WIND SPD.6 6 6 6 6 5 5 5 5 5 5 3
FRIDAY
SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....67-84.
MIN HUMIDITY........36-48 PERCENT.
WIND (20 FT)........EAST 2 TO 5 MPH...BECOMING WEST 5 TO 10 MPH
EARLY IN THE AFTERNOON.
MIXING HEIGHT.......200-2000 FT AGL.
TRANSPORT WINDS.....EAST AROUND 3 MPH, WEST 5 TO 7 MPH LATE IN THE
MORNING.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........4 4 7 7 7 4 4 4 8 8 8 4
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............56 56 58 60 64 68 70 72 72 72 71 68
RH..............55 56 57 55 52 49 46 44 44 44 47 51
20 FT WIND DIR..E E SE SE SE W W W W W W W
20 FT WIND SPD..4 4 3 3 3 4 4 4 7 7 7 7
20 FT WIND GUST.7 7 6 6 6 8 8 8 12 12 12 12
MIX HGT (KFT)...0.2 0.2 0.2 0.2 0.2 0.5 0.5 0.5 2.0 2.0 2.0 1.4
TRANSP WIND DIR.E E E E E W W W W W W NW
TRANSP WIND SPD.3 3 3 3 3 7 7 7 7 7 7 5
FORECAST DAYS 3 THROUGH 5
SATURDAY
COOLER. PARTLY CLOUDY. CHANCE OF RAIN. LOWS IN THE MID TO UPPER
40S. HIGHS 52 TO 67. WEST WINDS 5 TO 15 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF RAIN. LOWS IN THE MID TO UPPER
40S. HIGHS 61 TO 77. WEST WINDS AROUND 5 MPH, AND AROUND 10 MPH OVERNIGHT.
MONDAY
CLEAR. LOWS NEAR 50. HIGHS 66 TO 83. WINDS 5 TO 10 MPH.
OUTLOOK FOR TUESDAY SEPTEMBER 15 THROUGH SATURDAY SEPTEMBER 19
FOR NW CALIF...NEAR NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
FORECASTER...BOOMSMA
REQUESTED BY...COLLIN EWING
TYPE OF REQUEST...WILDFIRE
.TAG 2621383.2/EKA
.DELDT 09/09/26
.EMAIL 2026.MP18.PLANS@FIRENET.GOV
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