669
FNUS76 KEKA 171038
FWSEKA
SPOT FORECAST FOR MP 18 FIRE...NCIMT
NATIONAL WEATHER SERVICE EUREKA CA
338 AM PDT THU SEP 17 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
IN THE NEAR TERM, AN AREA OF LOW PRESSURE IN THE
REGION WILL BRING ADDITIONAL CHANCES FOR ISOLATED THUNDERSTORMS
THURSDAY THROUGH THURSDAY EVENING. WINDS WILL BE LIGHT OUTSIDE OF
ANY THUNDERSTORM ACTIVITY. AFTER THE DEPARTURE OF THE LOW,
TEMPERATURES WILL BEGIN TO INCREASE FRIDAY. AFTERNOON WESTERLY
WINDS WILL INCREASE SOME FRIDAY, FOLLOWED BY WEAK OFFSHORE
DRAINAGE FLOW LATE FRIDAY THROUGH SATURDAY MORNING. CONDITIONS
WILL FURTHER WARM AND DRY THROUGH THE WEEKEND AND NEXT WEEK. THE
CURRENT ONLY CHANCE FOR WETTING RAIN DOES NOT ARRIVE UNTIL FRIDAY
THE 25TH AND SATURDAY THE 26TH, AT 15% TO 25%.
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING SUNNY. SLIGHT
CHANCE OF RAIN EARLY IN THE MORNING. SLIGHT
CHANCE OF RAIN SHOWERS AND ISOLATED
THUNDERSTORMS LATE IN THE MORNING.
CWR.................4 PERCENT.
MAX TEMPERATURE.....67-75.
MIN HUMIDITY........42-49 PERCENT.
WIND (20 FT)........VARIABLE 1 TO 3 MPH...BECOMING WEST 5 TO 9 MPH
EARLY IN THE AFTERNOON. GUSTY AND ERRATIC WINDS
EXPECTED NEAR THUNDERSTORMS LATE IN THE
MORNING.
MIXING HEIGHT.......200FT AGL INCREASING TO 2200-3100 FT AGL
EARLY IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTH AROUND 3 MPH NORTHWEST AROUND 5 MPH LATE
IN THE AFTERNOON.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........26 26 16 16 16 19 19 19 25 25 25 17
WEATHER COV..... SCH SCH SCH SCH SCH SCH SCH SCH SCH
WEATHER TYPE.... RN RN RN RW RW RW RW RW RW
TSTM COV........ ISO ISO ISO ISO ISO ISO
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............53 53 54 58 63 66 69 70 71 70 70 68
RH..............64 66 63 59 55 49 47 46 46 51 54 59
20 FT WIND DIR..E E SE SE SE W W W NW NW NW W
20 FT WIND SPD..3 3 3 3 3 2 2 2 9 9 9 5
20 FT WIND GUST. 3 3 3 10 10 10 6
MIX HGT (KFT)...0.2 0.2 0.2 0.2 0.2 1.5 1.5 1.5 3.1 3.1 3.1 2.2
TRANSP WIND DIR.S S S S S W W W W W W NW
TRANSP WIND SPD.3 3 3 3 3 7 7 7 7 7 7 5
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CWR.................1 PERCENT.
MIN TEMPERATURE.....50-53.
MAX HUMIDITY........69-79 PERCENT.
WIND (20 FT)........WEST WINDS AROUND 5 MPH EARLY IN THE
EVENING...BECOMING VARIABLE 1 TO 3 MPH.
MIXING HEIGHT.......2200 FT AGL DECREASING TO 200 FT AGL EARLY IN
THE EVENING.
TRANSPORT WINDS.....NORTHWEST AROUND 5 MPH NORTHEAST 2 TO 3 MPH LATE
IN THE EVENING.
TIME (PDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........17 17 20 20 20 5 5 5 9 9 9 7
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............66 63 58 57 57 56 56 55 55 54 53 53
RH..............62 68 72 72 71 71 70 70 70 71 72 73
20 FT WIND DIR..W W NE NE NE E E E E E E NE
20 FT WIND SPD..5 5 1 1 1 3 3 3 3 3 3 4
20 FT WIND GUST.6 6 5
MIX HGT (KFT)...2.2 2.2 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 NE
TRANSP WIND SPD.5 5 5 5 5 2 2 2 2 2 2 3
FRIDAY
SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....70-78.
MIN HUMIDITY........42-50 PERCENT.
WIND (20 FT)........VARIABLE 1 TO 3 MPH...BECOMING NORTHWEST 5 TO 8
MPH EARLY IN THE AFTERNOON.
MIXING HEIGHT.......200-700 FT AGL INCREASING TO 1500-2500 FT AGL
EARLY IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHEAST AROUND 3 MPH NORTHWEST 5 TO 7 MPH LATE
IN THE MORNING.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........7 7 5 5 5 3 3 3 4 4 4 3
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............53 52 54 58 63 67 70 72 73 73 73 71
RH..............73 75 70 63 58 51 49 47 45 46 47 51
20 FT WIND DIR..NE NE E E E NW NW NW W W W NW
20 FT WIND SPD..4 4 2 2 2 4 4 4 8 8 8 5
20 FT WIND GUST.5 5 5 5 5 9 9 9 6
MIX HGT (KFT)...0.2 0.2 0.2 0.2 0.2 0.7 0.7 0.7 2.5 2.5 2.5 1.5
TRANSP WIND DIR.NE NE NE NE NE NW NW NW NW NW NW N
TRANSP WIND SPD.3 3 3 3 3 7 7 7 7 7 7 5
OUTLOOK FOR TUESDAY SEPTEMBER 22 THROUGH SATURDAY SEPTEMBER 26
FOR NW CALIF...ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION.
FORECASTER...WOOD
REQUESTED BY...COLLIN EWING
TYPE OF REQUEST...WILDFIRE
.TAG 2621733.3/EKA
.DELDT 09/17/26
.EMAIL 2026.MP18.PLANS@FIRENET.GOV
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