896
FNUS76 KEKA 112145
FWSEKA

Spot Forecast for MP 18 Fire...NCIMT
National Weather Service Eureka CA
245 PM PDT Fri Sep 11 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 weather returns this weekend as a trough
moves over the area. A weak front on Saturday will bring a chance
for rain. The chance for any measurable rain stands at around 50%
and will likely be spotty and only over portions of the fire, if
any. The chance for wetting rain is around 30%, although this will
be only if a strong shower briefly moves overhead. The highest
chances for rain will be Saturday late afternoon and evening.
Gusty west winds are also likely Saturday with gusts up to 20 mph.
A warming trend back to near- normal arrives early next week and
dry weather is expected for the next upcoming week.


.TONIGHT...

Sky/weather.........Mostly clear.
CWR.................1 percent.
Min temperature.....Around 50.
Max humidity........72-90 percent.
Wind (20 ft)........Northwest winds 5 to 8 mph.
Mixing height.......200 ft AGL.
Transport winds.....West 3 to 6 mph.

TIME (PDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........4   4   15  15  15  18  18  18  25  25  25  26
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Temp............68  64  57  56  55  54  54  53  52  52  51  51
RH..............49  58  66  66  65  65  65  65  67  68  68  69
20 FT wind dir..W   W   NW  NW  NW  NW  NW  NW  NW  NW  NW  NW
20 FT wind spd..7   7   5   5   5   6   6   6   5   5   5   5
20 FT wind gust.9   9   7   7   7   7   7   7   7   7   7   7
Mix hgt (kft)...1.5 1.5 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  SW  SW  SW  SW  SW  SW  W
Transp wind spd.6   6   6   6   6   5   5   5   5   5   5   3

.SATURDAY...

Sky/weather.........Partly cloudy. Chance of rain showers late in
                    the afternoon.
CWR.................7 percent.
Max temperature.....60-73.
Min humidity........45-52 percent.
Wind (20 ft)........West winds 5 to 15 mph.
Mixing height.......2600 ft AGL.
Transport winds.....West 3 to 10 mph.

TIME (PDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........26  26  10  10  10  25  25  25  61  61  61  55
Weather cov.....                                            CHC
Weather type....                                            RW
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   10
Temp............51  50  52  54  57  59  60  61  61  60  60  58
RH..............68  68  62  59  51  48  51  53  57  60  64  71
20 FT wind dir..NW  NW  W   W   W   W   W   W   W   W   W   W
20 FT wind spd..5   5   5   5   5   10  10  10  13  13  13  11
20 FT wind gust.7   7   8   8   8   15  15  15  20  20  20  17
Mix hgt (kft)...0.2 0.2 0.2 0.2 0.2 0.8 0.8 0.8 1.9 1.9 1.9 2.6
Transp wind dir.W   W   W   W   W   SW  SW  SW  SW  SW  SW  W
Transp wind spd.3   3   3   3   3   10  10  10  10  10  10  9

.SATURDAY NIGHT...

Sky/weather.........Mostly cloudy. Chance of rain showers.
CWR.................7 percent.
Min temperature.....46-50.
Max humidity........86-96 percent.
Wind (20 ft)........Southwest winds 5 to 15 mph.
Mixing height.......200-500 ft AGL.
Transport winds.....Southwest 3 to 9 mph.

TIME (PDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........55  55  59  59  59  65  65  65  61  61  61  53
Weather cov.....CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........
CWR.............10  10  10  10  10  10  10  10  10  10  10  0
Temp............57  55  51  50  50  49  50  49  49  48  48  47
RH..............75  78  79  78  76  77  77  77  79  81  83  85
20 FT wind dir..W   W   SW  SW  SW  SW  SW  SW  SW  SW  SW  SE
20 FT wind spd..11  11  7   7   7   10  10  10  6   6   6   4
20 FT wind gust.17  17  13  13  13  17  17  17  12  12  12  8
Mix hgt (kft)...2.6 2.6 1.6 1.6 1.6 0.9 0.9 0.9 0.5 0.5 0.5 0.2
Transp wind dir.W   W   W   W   W   SW  SW  SW  SW  SW  SW  SW
Transp wind spd.9   9   9   9   9   8   8   8   8   8   8   3

.SUNDAY...

Sky/weather.........Mostly cloudy then becoming sunny.
CWR.................0 percent.
Max temperature.....61-74.
Min humidity........46-56 percent.
Wind (20 ft)........East around 5 mph early in the morning, then...becoming
                    northwest 5 to 10 mph early in the afternoon.
Mixing height.......1600-2300 ft AGL.
Transport winds.....Southwest around 3 mph, north around 7 mph late
                    in the morning.

TIME (PDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........53  53  28  28  28  10  10  10  10  10  10  5
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Temp............46  47  48  51  54  57  59  61  63  63  63  61
RH..............83  81  79  75  69  65  61  58  57  59  62  66
20 FT wind dir..SE  SE  E   E   E   NW  NW  NW  NW  NW  NW  NW
20 FT wind spd..4   4   5   5   5   3   3   3   6   6   6   8
20 FT wind gust.8   8   8   8   8   8   8   8   12  12  12  15
Mix hgt (kft)...0.2 0.2 0.3 0.3 0.3 1.9 1.9 1.9 2.3 2.3 2.3 1.6
Transp wind dir.SW  SW  SW  SW  SW  N   N   N   N   N   N   N
Transp wind spd.3   3   3   3   3   7   7   7   7   7   7   7

.FORECAST DAYS 3 THROUGH 5...
.MONDAY...
Clear. Lows in the mid to upper 40s. Highs 71 to 86. Winds 5 to 10 mph.
.TUESDAY...
Clear. Lows in the lower 50s. Highs 75 to 88. Winds 5 to 10 mph.
.WEDNESDAY...
Clear. Lows in the lower to mid 50s. Highs 78 to 91. Winds
5 to 10 mph.

.OUTLOOK FOR THURSDAY SEPTEMBER 17 THROUGH MONDAY SEPTEMBER 21...
FOR NW CALIF...ABOVE NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION.

$$
Forecaster...Boomsma
Requested by...Collin Ewing
Type of request...WILDFIRE
.TAG 2621383.4/EKA
.DELDT 09/11/26
.EMAIL 2026.mp18.plans@firenet.gov