Storm Station
Sign in

Black Point-Green Point, California

Community in Marin County, California

Air quality

The air at Black Point-Green Point

Index 33, good, led by fine particles. Read at 10 PM from its reporting area, San Rafael (CA), 10 miles off.

33Good
  • Fine particles (PM2.5)33Good9.5 mi
  • Ozone14Good13 ppb9.5 mi
  • Nitrogen dioxide14Good15.4 ppb9.5 mi
  • Sulfur dioxide0Good0.8 ppb14.1 mi
  • Carbon monoxide-0.4 ppm9.5 mi

The days ahead

Good each day through Tue Oct 20, led by ozone. Yesterday measured 30, good.

Smoke, the next 43 hours

Little smoke near the ground through Sat 5 PM: the index from smoke stays at 11 or under.

FriSat

Precipitation

What has fallen at Black Point-Green Point

None in the last 3 days, to Thu 10 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 Black Point-Green Point, the next 43 hours

Visibility stays 10 miles or more through Sat 5 PM.

FriSat

On the radar over Black Point-Green Point, CaliforniaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Black Point-Green Point, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.7 miles away.

measured now4 instruments

NovatoDVO

At an airfield/3.0 mi away/3 ft/86 ft below here

temp, wind, gust, visibility, precip, pressure

Rank32of 4,465

Bodega 6 WSW93245

At a climate reference station/33.2 mi away/63 ft/26 ft below here

temp, humidity, wind, solar, precip

Rank-

measured daily2 instruments

Novato 1.8 NCA-MR-22

In a volunteer observer's own ground/2.0 mi away/67 ft/22 ft below here

precip, snowfall, snow depth

Rank-

Station report

The weather at Novato, drawn

The nearest airport reporting now, 3.0 mi from Black Point-Green Point, California. From its report of Oct 15, 2026, 10:55 PM local time: 3 of its 5 sheets.

The sky

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

Section of the sky over Novato, 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 DVOFIG. A THE SKY OVER NOVATOSECTION, 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 MORE0510TITLENovato, the skySTATION REPORT · ASOS DVOTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 5DATE2026-10-16IDSR-DVO-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

59.0 F with a dew point of 44.6 F, 59 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 3,300 ft up.

Chart of the air at Novato: temperature 59.0 degrees Fahrenheit and dew point 44.6, 59 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 3,300 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT DVOFIG. B THE AIR AT NOVATOTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,00030 F40 F50 F60 F70 FSATURATES 3,300 FT ABOVE THE STATION, AT 41.4 FTEMPERATURE 59.0 FDEW POINT 44.6 FSPREAD 14.4 FRELATIVE HUMIDITY 59 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 POINTTITLENovato, the airSTATION REPORT · ASOS DVOTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 5DATE2026-10-16IDSR-DVO-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The column

At 3 ft above sea level, 0 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.92 inHg and the temperature at 59.0 F; the station's altimeter setting of 30.07 inHg means its barometer reads 30.07 inHg; it reports 59.0 F, 0.0 F warmer than standard.

Section from sea level of where Novato stands in the atmosphere, height to scale: the station 3 feet above sea level with 0 per cent of the air below it; the standard atmosphere's pressure there, 29.92 inches of mercury, and temperature, 59.0 degrees Fahrenheit; the altimeter setting of 30.07 and the station pressure it means, 30.07.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT DVOFIG. D WHERE NOVATO STANDS IN THE ATMOSPHERESECTION FROM SEA LEVEL, HEIGHT TO SCALE, THE STATION IN THE STANDARD ATMOSPHEREFT ABOVE SEA LEVEL05,00010,00015,000SEA LEVEL, 29.92 inHg IN THE STANDARD ATMOSPHERENOVATO0 PER CENT OF THE AIR BELOW IT3 FT10 PER CENT OF THE AIR BELOW, 2,890 FT20 PER CENT OF THE AIR BELOW, 6,050 FT30 PER CENT OF THE AIR BELOW, 9,540 FT40 PER CENT OF THE AIR BELOW, 13,470 FTSTANDARD PRESSURE HERE29.92 inHgSTANDARD TEMPERATURE HERE59.0 FALTIMETER SETTING, REPORTED30.07 inHgITS BAROMETER READS30.07 inHgTEMPERATURE, REPORTED59.0 FTITLENovato, the columnSTATION REPORT · ASOS DVOTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 3 of 5DATE2026-10-16IDSR-DVO-3DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

The full report of Novato, in 5 sheets, each beside the Field Book plates that explain it

-

Snow on the ground

Elsewhere in California

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

Near Black Point-Green Point

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

Near Black Point-Green Point

River and lake gauges