358
FNUS76 KEKA 060018
FWSEKA
SPOT FORECAST FOR MP 18 FIRE...NCIMT
NATIONAL WEATHER SERVICE EUREKA CA
518 PM PDT SAT SEP 5 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
COOLER TEMPERATURES INLAND WILL PERSIST THROUGH THE WEEKEND
BEFORE A WARMING TREND TAKES EFFECT. TEMPERATURES ARE EXPECTED TO RISE
TO JUST AT OR SLIGHTLY ABOVE NORMAL EARLY WEEK. NW WINDS ARE LIKELY TO
CONTINUE THROUGH THE WEEKEND INTO THE WEEK AS WELL. AN UPPER LEVEL TROUGH
TO THE NORTH OF THE AREA IS KEEPING RH VALUES HIGH AND COULD SEND A LIGHT
RAINSHOWERS OVER THE INCIDENT AREA SUNDAY, YET FORECAST CONFIDENCE IN THIS
IS LOW AND ANY RAIN THAT DOES FALL WILL BE VERY LIGHT, <0.10".
HIGH PRESSURE RIDGING WILL QUICKLY STRENGTHEN STARTING MONDAY WHEN
INLAND VALLEY HIGH TEMPERATURES WILL RANGE IN THE MID TO UPPER
80S.
*RANGES BELOW ARE DUE TO THE VAST DIFFERENCES IN WEATHER CONDITIONS OVER
THE BURN SITE. FOR FURTHER INFORMATION PLEASE FEEL FREE TO REACH OUT TO
NWS EUREKA 24/7.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CWR.................1 PERCENT.
MIN TEMPERATURE.....46-50.
MAX HUMIDITY........73-83 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 5 TO 9 MPH...BECOMING VARIABLE
2 TO 5 MPH.
MIXING HEIGHT.......2900 FT AGL DECREASING TO 200 FT AGL EARLY IN
THE EVENING.
TRANSPORT WINDS.....NORTHWEST 3 TO 7 MPH NORTHEAST AROUND 2 MPH LATE
IN THE NIGHT.
TIME (PDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........36 36 34 34 34 12 12 12 11 11 11 27
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............61 58 55 51 50 50 51 50 50 49 49 48
RH..............69 74 77 75 72 72 71 70 72 75 76 79
20 FT WIND DIR..NW NW NW NW NW NW NW NW NW NW NW NE
20 FT WIND SPD..9 9 5 5 5 5 5 5 5 5 5 2
20 FT WIND GUST.13 13 8 8 8 7 7 7 7 7 7
MIX HGT (KFT)...2.9 2.9 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 N N N N N N NE
TRANSP WIND SPD.7 7 7 7 7 3 3 3 3 3 3 2
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING SUNNY.
CWR.................1 PERCENT.
MAX TEMPERATURE.....58-66.
MIN HUMIDITY........58-68 PERCENT.
WIND (20 FT)........VARIABLE 2 TO 4 MPH...BECOMING WEST 5 TO 9 MPH
LATE IN THE MORNING.
MIXING HEIGHT.......200-800 FT AGL INCREASING TO 1900-2500 FT AGL
EARLY IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHEAST AROUND 2 MPH NORTHWEST 7 TO 8 MPH LATE
IN THE MORNING.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........27 27 29 29 29 3 3 3 0 0 0 11
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............49 48 50 52 55 57 59 60 61 61 60 61
RH..............75 73 68 68 66 65 65 62 63 64 66 68
20 FT WIND DIR..NE NE W W W W W W W W W W
20 FT WIND SPD..2 2 2 2 2 6 6 6 9 9 9 8
20 FT WIND GUST. 10 10 10 9
MIX HGT (KFT)...0.2 0.2 0.2 0.2 0.2 0.8 0.8 0.8 2.5 2.5 2.5 1.9
TRANSP WIND DIR.NE NE NE NE NE W W W W W W NW
TRANSP WIND SPD.2 2 2 2 2 8 8 8 8 8 8 7
SUNDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CWR.................0 PERCENT.
MIN TEMPERATURE.....AROUND 50.
MAX HUMIDITY........70-80 PERCENT.
WIND (20 FT)........WEST WINDS 5 TO 8 MPH EARLY IN THE
EVENING...BECOMING VARIABLE 2 TO 5 MPH,
THEN...BECOMING EAST 5 TO 7 MPH LATE IN THE
EVENING.
MIXING HEIGHT.......200-1900 FT AGL.
TRANSPORT WINDS.....NORTHWEST AROUND 7 MPH NORTHEAST AROUND 6 MPH
LATE IN THE EVENING.
TIME (PDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........11 11 19 19 19 3 3 3 3 3 3 2
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............59 56 53 50 50 50 50 49 49 49 49 48
RH..............70 74 75 74 74 73 72 71 73 74 75 75
20 FT WIND DIR..W W NW NW NW NE NE NE E E E E
20 FT WIND SPD..8 8 4 4 4 5 5 5 5 5 5 6
20 FT WIND GUST.9 9 5 5 5 6 6 6 6 6 6
MIX HGT (KFT)...1.9 1.9 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.7 7 7 7 7 6 6 6 6 6 6 6
LABOR DAY
SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....67-75.
MIN HUMIDITY........41-48 PERCENT.
WIND (20 FT)........EAST WINDS 5 TO 7 MPH IN THE MORNING...BECOMING
VARIABLE 2 TO 4 MPH, THEN...BECOMING NORTHWEST
5 TO 7 MPH EARLY IN THE AFTERNOON.
MIXING HEIGHT.......200-900 FT AGL INCREASING TO 2100-3300 FT AGL
EARLY IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHEAST AROUND 6 MPH NORTHWEST 5 TO 6 MPH LATE
IN THE MORNING.
TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........2 2 2 2 2 0 0 0 1 1 1 7
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............48 49 51 54 59 63 66 69 70 71 70 68
RH..............72 67 64 59 55 52 48 44 45 47 50 55
20 FT WIND DIR..E E E E E N N N NW NW NW W
20 FT WIND SPD..6 6 6 6 6 3 3 3 5 5 5 6
20 FT WIND GUST. 6 6 6 8
MIX HGT (KFT)...0.2 0.2 0.2 0.2 0.2 0.9 0.9 0.9 3.3 3.3 3.3 2.1
TRANSP WIND DIR.NE NE NE NE NE NW NW NW NW NW NW N
TRANSP WIND SPD.6 6 6 6 6 5 5 5 5 5 5 6
FORECASTER...SCHMIEGEL
REQUESTED BY...COLLIN EWING
TYPE OF REQUEST...WILDFIRE
.TAG 2621104.0/EKA
.DELDT 09/05/26
.EMAIL 2026.MP18.PLANS@FIRENET.GOV
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