Storm Station
Greenhorn, California
64°
Overcast· Feels like 64°·Light breeze 4 mph SSW
Mostly cloudy, with a low around 49. East wind around 3 mph.
-UV
35Air quality
33%Humidity
86%Cloud

What is measuring near here

The 5 instruments nearest Greenhorn, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 3.8 miles away.

measured now3 instruments

Spring GardenCD018

Beside a road/3.8 mi away/3,799 ft/700 ft below here

temp, pavement temp, wind, visibility, precip

Rank2,069of 3,115

Grizzly RidgeGRZC1

At a river or reservoir gauge/5.5 mi away/6,909 ft/2,410 ft above here

temp, wind, gust, humidity, pressure

Rank506of 3,115

SusanvilleSVE

At an airfield/33.8 mi away/4,137 ft/362 ft below here

temp, wind, gust, visibility, precip, pressure

Rank2,806of 3,115

measured daily2 instruments

QuincyQCYC1

At a cooperative observer's station/10.8 mi away/3,432 ft/1,067 ft below here

snowfall, snow depth, precip, high, low

Rank-

Portola 1.1 NNWCA-PM-12

In a volunteer observer's own ground/15.5 mi away/4,956 ft/457 ft above here

precip, snowfall, snow depth

Rank-

Station report

The weather at Susanville, drawn

The nearest airport reporting now, 33.8 mi from Greenhorn. From its report of Sep 27, 2026, 12:15 AM 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 Susanville, 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 SVEFIG. A THE SKY OVER SUSANVILLESECTION, 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 MORE0510TITLESusanville, the skySTATION REPORT · ASOS SVETYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-SVE-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

60.8 F with a dew point of 39.2 F, 45 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 4,900 ft up.

Chart of the air at Susanville: temperature 60.8 degrees Fahrenheit and dew point 39.2, 45 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 4,900 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SVEFIG. B THE AIR AT SUSANVILLETHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,0006,0007,00020 F30 F40 F50 F60 F70 FSATURATES 4,900 FT ABOVE THE STATION, AT 34.6 FTEMPERATURE 60.8 FDEW POINT 39.2 FSPREAD 21.6 FRELATIVE HUMIDITY 45 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 POINTTITLESusanville, the airSTATION REPORT · ASOS SVETYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-SVE-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Susanville, 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 SVEFIG. C THE WIND AT SUSANVILLEPLAN, 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 FORCE73TITLESusanville, the windSTATION REPORT · ASOS SVETYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-SVE-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

-in

Snow on the ground

Elsewhere in California

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

Near Greenhorn

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