Spot Forecast
Issued by NWS Eureka, CA

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980
FNUS76 KEKA 171707
FWSEKA

Spot Forecast for CFMC McKinnonn Hill 3...Cultural Fire Management Council
National Weather Service Eureka CA
1007 AM PDT Mon Aug 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...Today is expected to be coolest day with a few degrees of
warming Tuesday. RH is expected to be in the mid 30s and likely the lowest
on Tuesday. Wednesday the marine layer may start to deepen again. Today is
expected to have better mixing with some low level inability. Tuesday will
start to see the mixing heights drop with more stable low levels. Winds may
turn north or even northeast tonight with northwest winds up the river
dominating otherwise.

.REST OF TODAY...

Sky/weather.........Mostly cloudy then becoming sunny. Patchy smoke
                    early in the afternoon.
CWR.................0 percent.
Max temperature.....Around 85.
Min humidity........Around 35 percent.
Wind (20 ft)........Northwest winds 7 to 10 mph.
Mixing height.......1500-2000 ft AGL.
Transport winds.....West 7 to 9 mph.

TIME (PDT)      1PM 2PM 3PM 4PM 5PM
Sky (%).........54  25  25  25  9
Weather cov.....PTY
Weather type....SMK
Tstm cov........
CWR.............0   0   0   0   0
Temp............81  84  85  84  82
RH..............39  37  35  35  37
20 FT wind dir..NW  NW  NW  NW  NW
20 FT wind spd..7   9   9   9   7
20 FT wind gust.    13  13  13  13
Mix hgt (kft)...1.7 2.0 2.0 1.9 1.8
Transp wind dir.W   W   W   W   NW
Transp wind spd.9   9   9   9   7

.TONIGHT...

Sky/weather.........Partly cloudy then becoming mostly cloudy.
CWR.................0 percent.
Min temperature.....Around 55.
Max humidity........90 percent.
Wind (20 ft)........Northwest winds 5 to 8 mph in the
                    evening...becoming Northeast/variable 2 to 4 mph.
Mixing height.......200-400 ft AGL.
Transport winds.....Northwest around 7 mph becoming north 2 to 3 mph late in
                    the evening.

TIME (PDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........9   9   23  23  23  37  37  37  47  47  47  55
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Temp............79  76  72  62  61  59  59  58  57  57  56  56
RH..............39  46  55  69  76  80  83  85  87  88  89  90
20 FT wind dir..NW  NW  NW  NW  NW  N   N   N   NW  NW  NW  N
20 FT wind spd..7   7   5   5   5   2   2   2   2   2   2   2
20 FT wind gust.13  13  7   7   7   6   6   6   6   6   6   6
Mix hgt (kft)...1.7 1.2 0.4 0.4 0.4 0.4 0.3 0.3 0.3 0.2 0.2 0.2
Transp wind dir.NW  NW  NW  NW  NW  N   N   N   N   N   NE  NE
Transp wind spd.7   7   7   7   7   3   3   3   3   3   3   2

.TUESDAY...

Sky/weather.........Mostly cloudy then becoming sunny then becoming
                    partly cloudy.
CWR.................0 percent.
Max temperature.....Around 87.
Min humidity........Around 35 percent.
Wind (20 ft)........Northeast/Variable 3 to 6 mph...becoming northwest 7 to
                    10 mph late in the morning.
Mixing height.......Increasing 1000-1400 ft AGL.
Transport winds.....North around 2 mph becoming northwest 7 to 10 mph late in
                    the morning.

TIME (PDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........55  55  18  18  18  23  23  23  28  28  28  33
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Temp............56  56  58  59  66  75  79  82  84  84  83  85
RH..............83  83  81  79  64  50  45  39  35  36  39  41
20 FT wind dir..N   N   NW  NW  NW  NW  NW  NW  NW  NW  NW  NW
20 FT wind spd..2   2   2   2   2   8   8   8   10  10  10  7
20 FT wind gust.6   6   6   6   6   12  12  12  15  15  15  9
Mix hgt (kft)...0.2 0.4 0.8 0.8 0.9 1.0 1.2 1.3 1.4 1.3 1.2 1.0
Transp wind dir.N   N   N   N   N   NW  NW  NW  NW  NW  NW  NW
Transp wind spd.2   2   2   2   2   10  10  10  10  10  10  7

$$
Forecaster...Kidwell
Requested by...Margo Robbins
Type of request...PRESCRIBED
.TAG 2619850.0/EKA
.DELDT 08/17/26
.EMAIL claire@culturalfire.org,margo@culturalfire.org