Spot Forecast
Issued by NWS Eureka, CA

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
220
FNUS76 KEKA 031250
FWSEKA

Spot Forecast for Cedar Fire...USFS
National Weather Service Eureka CA
550 AM PDT Wed Sep 3 2025

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...The dry thunderstorm chances have greatly decreased
as the shortwave disturbance and monsoonal moisture pull north.
Some lingering elevated instability will continue to aid in better
mixing, effective ventilation, and plume dominated behavior.
Mixing heights will also subsequently rise to 9000 to 10000 ft in
the afternoons. Instability fades some Thursday, but the
atmosphere remains well- mixed, keeping afternoon mixing heights
elevated. Another day or two of dry conditions, high temperatures,
and gusty diurnal winds are expected. A shortwave trof will push
in from the west Friday. A frontal passage will bring down overall
temperatures, keep winds gusty, and allow for more robust
nighttime recoveries. This system will also bring more elevated
instability. A slight chance for an afternoon thunderstorm over
the Trinity horn region will remain over the next couple of days,
and possibly Friday.



.TODAY...

Sky/weather.........Sunny.
CWR.................1 percent.
Max temperature.....Around 89.
Min humidity........17 percent.
Wind (20 ft)........North winds around 5 mph...shifting to the east-
                    southeast 7 to 10 mph in the afternoon.
Mixing height.......400, lifting to 2000 ft AGL increasing to 5000 ft AGL late
                    in the morning, then increasing to 10200 ft AGL
                    early in the afternoon decreasing to 5000 ft
                    AGL late in the afternoon.
Transport winds.....Southeast around 13 mph.

.TONIGHT...

Sky/weather.........Mostly clear.
CWR.................1 percent.
Min temperature.....Around 62.
Max humidity........46 to 51 percent.
Wind (20 ft)........West winds around 5 mph in the
                    evening...becoming variable 2 to 4 mph.
Mixing height.......5000 ft AGL decreasing to 400-600 ft AGL early
                    in the evening.
Transport winds.....East around 6 mph.

.THURSDAY...

Sky/weather.........Sunny.
CWR.................1 percent.
Max temperature.....Around 89.
Min humidity........20 to 24 percent.
Wind (20 ft)........Southeast 2 to 5 mph in the morning, switching
                    westerly 2 to 5 mph in the late afternoon.
Mixing height.......300-1100 ft AGL increasing to 5600 ft AGL
                    late in the morning, then increasing to 9400 ft
                    AGL early in the afternoon decreasing to
                    6000 ft AGL into the early evening.
Transport winds.....Southeast around 10 mph.

$$
Forecaster...Wood
Requested by...Nate Ulrich
Type of request...WILDFIRE
.TAG 2521172.0/EKA
.DELDT 09/03/25
.EMAIL jason.obannon@usda.gov,mike.anderson@usda.gov,patrick.bell@usda.gov,nathan.ulrich@usda.gov