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Fortuna, California

City in Humboldt County, California

Air quality

The air at Fortuna

Index 8, good, led by coarse particles. Read at 3 AM from its reporting area, Eureka (CA), 15 miles off.

8Good
  • Coarse particles (PM10)8Good13.7 mi

The days ahead

Yesterday measured 16, good.

Smoke, the next 44 hours

Little smoke near the ground through Sun 11 PM: the index from smoke stays at 6 or under.

SatSun

Precipitation

What has fallen at Fortuna

None in the last 3 days, to Sat 3 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.00in

Visibility

How far you can see at Fortuna, the next 44 hours

Mist or haze: visibility falls to 2 miles Sun 12 AM.

SatSun

On the radar over Fortuna, CaliforniaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 5 instruments nearest Fortuna, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.2 miles away.

measured now3 instruments

FortunaFOT

At an airfield/2.2 mi away/369 ft/307 ft above here

temp, wind, gust, visibility, precip, pressure

Rank2,372of 4,461

Kneeland RAWSKNNC1

A remote fire weather station/14.7 mi away/2,684 ft/2,622 ft above here

temp, wind, gust, humidity, pressure

Rank969of 4,461

measured daily2 instruments

Fortuna 0.1 NWCA-HM-29

In a volunteer observer's own ground/0.2 mi away/65 ft/3 ft above here

precip, snowfall, snow depth

Rank-

ScotiaSCTC1

At a cooperative observer's station/7.3 mi away/138 ft/76 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Fortuna, drawn

The nearest airport reporting now, 2.2 mi from Fortuna, California. From its report of Oct 17, 2026, 4:15 AM local time: 3 of its 6 sheets.

The sky

Overcast at 200 ft; the ceiling is 200 ft; visibility 1/4 mi.

Section of the sky over Fortuna, height above the station to scale: overcast cloud with its base at 200 feet, the ceiling at 200 feet, and visibility of 1/4 mi.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FOTFIG. A THE SKY OVER FORTUNASECTION, HEIGHT ABOVE THE STATION TO SCALE, EACH LAYER AT THE HEIGHT OF ITS BASE AS REPORTED; COVER IN EIGHTHS OF THE SKY; TOPS NOT MEASUREDFT ABOVE THE STATION05001,0001,5002,0002,5003,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 200 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 200 FTVISIBILITY, MILES: 1/4 MI0510TITLEFortuna, the skySTATION REPORT · ASOS FOTTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-17IDSR-FOT-1DRAWN AS linework on paperSOURCES FB-WAT-020, FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

46.4 F with a dew point of 46.4 F, 100 per cent relative humidity. The air is saturated at the ground; the lowest cloud reported is at 200 ft.

Chart of the air at Fortuna: temperature 46.4 degrees Fahrenheit and dew point 46.4, 100 per cent relative humidity; the air saturated at the ground, against the lowest cloud reported at 200 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FOTFIG. B THE AIR AT FORTUNATHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00040 F50 F60 FSATURATED AT THE GROUNDLOWEST CLOUD REPORTED, OVC 200 FTTEMPERATURE AND DEW POINT 46.4 F, 46.4 FRELATIVE HUMIDITY 100 PER CENTTHE AIR COOLS ABOUT 5.4 F EACH 1,000 FT IT RISES, AND ITS DEW POINT ABOUT 1 FSOLID: THE LIFTED AIR'S TEMPERATURE; DASHED: ITS DEW POINTTITLEFortuna, the airSTATION REPORT · ASOS FOTTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-17IDSR-FOT-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Fortuna, north up: calm; beside it the Beaufort scale from calm to hurricane force, force 0, calm, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FOTFIG. C THE WIND AT FORTUNAPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONCALMBEAUFORT FORCELEAST WIND, MPH0CALM0NOW, 0 MPH1LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEFortuna, the windSTATION REPORT · ASOS FOTTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-17IDSR-FOT-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Fortuna, in 6 sheets, each beside the Field Book plates that explain it

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Snow on the ground

Elsewhere in California

33 places, each with its own forecast and its own instruments.

Near Fortuna

The nearest places, each with its own forecast and the instruments nearest it.

Near Fortuna

River and lake gauges