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Humboldt Hill, California

Community in Humboldt County, California

Air quality

The air at Humboldt Hill

Index 44, good, led by coarse particles. Read at 9 PM from its reporting area, Eureka (CA), 6 miles off.

44Good
  • Coarse particles (PM10)44Good4.1 mi

The days ahead

Yesterday measured 23, good.

Smoke, the next 44 hours

Little smoke near the ground through Sat 5 PM: the index from smoke stays at 22 or under.

FriSat

Precipitation

What has fallen at Humboldt Hill

None in the last 3 days, to Thu 9 PM. 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 Humboldt Hill, the next 44 hours

Dense fog: visibility falls to 0 miles Fri 8 AM, under a mile for 16 hours.

FriSat

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

What is measuring near here

The 5 instruments nearest Humboldt Hill, 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/12.3 mi away/369 ft/41 ft above here

temp, wind, gust, visibility, precip, pressure

Rank2,689of 4,465

measured daily2 instruments

Eureka 5.4 SSWCA-HM-180

In a volunteer observer's own ground/0.2 mi away/271 ft/57 ft below here

precip, snowfall, snow depth

Rank-

ScotiaSCTC1

At a cooperative observer's station/17.4 mi away/138 ft/190 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Fortuna, drawn

The nearest airport reporting now, 12.3 mi from Humboldt Hill, California. From its report of Oct 15, 2026, 9:30 PM local time: 3 of its 6 sheets.

The sky

No cloud below 12,000 ft; visibility 10 mi or more.

Section of the sky over Fortuna, height above the station to scale: no cloud detected below 12,000 feet, the reach of its ceilometer, and visibility of 10 mi or more.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 SHEETNO CLOUD DETECTED BELOW 12,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEFortuna, the skySTATION REPORT · ASOS FOTTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-FOT-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

57.2 F with a dew point of 50.0 F, 77 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,700 ft up.

Chart of the air at Fortuna: temperature 57.2 degrees Fahrenheit and dew point 50.0, 77 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,700 feet above the station; 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 F70 FSATURATES 1,700 FT ABOVE THE STATION, AT 48.4 FTEMPERATURE 57.2 FDEW POINT 50.0 FSPREAD 7.2 FRELATIVE HUMIDITY 77 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 6DATE2026-10-16IDSR-FOT-2DRAWN AS linework on paperSOURCES 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 6DATE2026-10-16IDSR-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 Humboldt Hill

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

Near Humboldt Hill

River and lake gauges