678 FNUS76 KEKA 291938 FWSEKA Spot Forecast for 26-French Ranch VMP...CAL FIRE National Weather Service Eureka CA 1238 PM PDT Mon Jun 29 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...A dry and stable air mass behind a passing shortwave will keep the region clear and dry today, but the primary operational focus centers on Tuesday's rapidly accelerating wind profile and containment risks. TUESDAY TIMELINE & WIND GRADIENT: * 9:00 AM – Noon: High-resolution HREF guidance shows a 40% probability of wind gusts exceeding 25 mph. * 1:00 PM – Afternoon: Conditions degrade rapidly as the probability of gusts over 25 mph ramps up sharply to 80% by 2:00 PM, with peak afternoon wind gusts most likely tracking in the 25 to 30 mph range. SITE-SPECIFIC WEATHER & TOPOGRAPHY IMPACTS: * Micro-Scale Wind Ninja Data: High-resolution WindNinja simulations indicate maximum sustained 20-foot winds peaking at 18 mph out of the north by late morning into the afternoon. * Terrain Sheltering Limitations: While the West and Southwest aspect of this 1,345-foot site will physically shield the 15-acre footprint from the true ambient synoptic northerly momentum early in the day, the afternoon timeline presents an escalating risk. The combination of an 80% synoptic >25mph gust probability, 18 mph fine-scale sustained winds, and 25 to 30 mph mean peak gust potential indicates that the ambient ridge-level momentum is likely to overpower the terrain shield and mix down north wind gusts 25 mph or greater to the surface after 1:00 PM. * Micro-Climate Concerns: Boundary layer mixing will lift the mixing height to a peak of around 2,100 feet AGL Tuesday afternoon, with.relative humidity dropping rapidly to 36%. .REST OF TONIGHT... Sky/weather.........Mostly clear. CWR.................0. Min temperature.....Around 49. Max humidity........91 percent. Wind (20 ft)........North winds 5 to 7 mph with gusts to around 18 mph. Mixing height.......500 ft AGL. Transport winds.....North 15 to 18 mph. TIME (PDT) 11 PM 2 AM 5 AM Sky (%).........22 18 18 Weather cov..... Weather type....NONE NONE NONE Tstm cov........ CWR.............0 0 0 Temp............56 52 50 RH..............83 89 90 20 FT wind......N 6G18 N 5G15 N 5G15 Mix hgt (ft)....500 500 500 Transport wind..N 15 N 15 N 18 .TUESDAY... Sky/weather.........Sunny. CWR.................0. Max temperature.....Around 76. Min humidity........36 percent. Wind (20 ft)........North winds 5 to 12 mph. Gusts up to 24 mph increasing to 26 mph early in the afternoon. Mixing height.......2100 ft AGL. Transport winds.....North 18 to 22 mph. TIME (PDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........18 18 11 11 11 8 8 8 1 1 1 8 Weather cov..... Weather type.... Tstm cov........ CWR.............M M M M M M M M M M M M Temp............50 49 53 57 64 68 72 74 75 74 73 74 RH..............91 89 84 71 58 48 40 37 36 39 42 44 20 FT wind dir..N N N N N N N N N N N N 20 FT wind spd..5 5 6 6 6 9 9 9 12 12 12 10 20 FT wind gust.15 15 18 18 18 24 24 24 26 26 26 26 Mix hgt (kft)...0.5 0.5 1.3 1.3 1.3 1.8 1.8 1.8 2.1 2.1 2.1 1.7 Transp wind dir.N N N N N N N N N N N N Transp wind spd.18 18 18 18 18 22 22 22 22 22 22 22 .TUESDAY NIGHT... Sky/weather.........Mostly clear. CWR.................0. Min temperature.....Around 48. Max humidity........87 percent. Wind (20 ft)........North winds 5 to 10 mph. Gusts up to 26 mph until early morning. Mixing height.......400-1700 ft AGL. Transport winds.....North 14 to 22 mph. TIME (PDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........8 8 19 19 19 24 24 24 18 18 18 31 Weather cov..... Weather type.... Tstm cov........ CWR.............M M M M M M M M M M M M Temp............71 68 65 59 57 55 54 53 52 50 50 50 RH..............47 52 60 67 74 80 83 85 86 86 87 87 20 FT wind dir..N N N N N N N N N N N N 20 FT wind spd..10 10 9 9 9 7 7 7 5 5 5 5 20 FT wind gust.26 26 24 24 24 21 21 21 15 15 15 15 Mix hgt (kft)...1.7 1.7 0.8 0.8 0.8 0.5 0.5 0.5 0.4 0.4 0.4 0.4 Transp wind dir.N N N N N N N N N N N N Transp wind spd.22 22 22 22 22 14 14 14 14 14 14 14 $$ Forecaster...Heinlein Requested by...Ross Dollarhide Type of request...PRESCRIBED .TAG 2616453.0/EKA .DELDT 06/29/26 .EMAIL ross.dollarhide@fire.ca.gov