393
FNUS76 KEKA 091317
FWSEKA
SPOT FORECAST FOR MP 18 FIRE...NCIMT
NATIONAL WEATHER SERVICE EUREKA CA
617 AM 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
LIGHT EASTERLY WINDS THIS MORNING VEER WESTERLY BY LATE MORNING
AND BUILD TO 5-6MPH BY LATE AFTERNOON, LASTING INTO THE EVENING. RH VALUES THIS MORNING
RANGING 37-39% AND WILL BOTTOM OUT AT 14-16% WITH A HIGH TEMP OF 83-85F. WINDS TONIGHT
EASE FROM 6MPH OUT OF THE WNW TO LIGHT NORTHERLY WINDS AROUND 2MPH OR SO AFTER SUNSET,
REVERSING FLOW AND VEERING NORTH-NORTHEAST BY MIDNIGHT. OVERNIGHT RECOVERIES INTO
THURSDAY PLATEAU 37-43% RANGE AND DIP SLIGHTLY FOR THE RH MINIMUM THURSDAY AFTERNOON
AT 32-33%. HIGH TEMP THURSDAY OF 80-81F WITH WINDS TURNING WESTERLY BY NOON AND BUILDING
TO 6-7MPH BY THE LATE AFTERNOON INTO THE EVENING BEFORE EASING 5-2MPH BY SUNSET.
TODAY
SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....82-90.
MIN HUMIDITY........13-16 PERCENT.
WIND (20 FT)........NORTHEAST WINDS AROUND 5 MPH IN THE
MORNING...BECOMING VARIABLE 2 TO 4 MPH,
THEN...BECOMING WEST 5 TO 8 MPH EARLY IN THE
AFTERNOON.
MIXING HEIGHT.......200-700 FT AGL INCREASING TO 2600-2900 FT AGL
EARLY IN THE AFTERNOON.
TRANSPORT WINDS.....EAST AROUND 3 MPHNORTHWEST 5 TO 6 MPH LATE IN
THE MORNING.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........1 1 0 0 0 1 1 1 1 1 1 5
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............60 58 60 65 73 77 81 84 86 86 85 85
RH..............37 37 39 37 29 24 22 17 14 14 18 25
20 FT WIND DIR..E E NE NE NE W W W W W W NW
20 FT WIND SPD..5 5 5 5 5 3 3 3 5 5 5 7
20 FT WIND GUST.6 6 6 6 6 7 7 7
MIX HGT (KFT)...0.2 0.2 0.2 0.2 0.2 0.7 0.7 0.7 2.9 2.9 2.9 2.6
TRANSP WIND DIR.E E E E E NW NW NW NW NW NW N
TRANSP WIND SPD.3 3 3 3 3 5 5 5 5 5 5 6
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CWR.................0 PERCENT.
MIN TEMPERATURE.....59-65.
MAX HUMIDITY........41-51 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 5 TO 8 MPH EARLY IN THE
EVENING...BECOMING VARIABLE 1 TO 3 MPH.
MIXING HEIGHT.......2600 FT AGL DECREASING TO 200 FT AGL EARLY IN
THE EVENING.
TRANSPORT WINDS.....NORTH AROUND 6 MPHNORTHEAST 2 TO 3 MPH LATE IN
THE EVENING.
TIME (PDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........5 5 11 11 11 6 6 6 17 17 17 26
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............82 77 74 70 70 70 69 68 68 67 66 66
RH..............34 41 43 44 41 39 38 37 37 37 39 39
20 FT WIND DIR..NW NW N N N E E E E E E NE
20 FT WIND SPD..7 7 3 3 3 3 3 3 2 2 2 2
20 FT WIND GUST. 3 3 3 3
MIX HGT (KFT)...2.6 2.6 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 2
THURSDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....80-88.
MIN HUMIDITY........28-34 PERCENT.
WIND (20 FT)........VARIABLE 1 TO 3 MPH...BECOMING WEST 5 TO 8 MPH
EARLY IN THE AFTERNOON.
MIXING HEIGHT.......200-1900 FT AGL.
TRANSPORT WINDS.....NORTHEAST AROUND 2 MPHWEST 5 TO 6 MPH LATE IN
THE MORNING.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........26 26 15 15 15 17 17 17 10 10 10 2
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............64 63 65 69 74 77 80 82 82 82 82 79
RH..............40 42 44 42 39 34 34 32 32 33 36 39
20 FT WIND DIR..NE NE NE NE NE W W W W W W W
20 FT WIND SPD..2 2 2 2 2 4 4 4 8 8 8 7
20 FT WIND GUST.3 3 8
MIX HGT (KFT)...0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 1.9 1.9 1.9 1.3
TRANSP WIND DIR.NE NE NE NE NE W W W W W W NW
TRANSP WIND SPD.2 2 2 2 2 6 6 6 6 6 6 5
OUTLOOK FOR MONDAY SEPTEMBER 14 THROUGH FRIDAY SEPTEMBER 18
FOR NW CALIF...NEAR NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.
FORECASTER...SWAFFORD
REQUESTED BY...COLLIN EWING
TYPE OF REQUEST...WILDFIRE
.TAG 2621385.1/EKA
.DELDT 09/09/26
.EMAIL 2026.MP18.PLANS@FIRENET.GOV
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