Storm Station
Emerald Lake Hills, California
54° 67°/49°
Overcast· Feels like 54°·Light air 2 mph SSE
Mostly cloudy, with a low around 51. West southwest wind around 3 mph.
0UV Low
50Air quality
70%Humidity
89%Cloud
Now
12:15 AM
54feels54
now, overcast
Today
Sep 27
6749
14mph
UV 6
overcast
Mon
Sep 28
7950
UV 6
overcast
Tue
Sep 29
8551
UV 6
mostly clear day
Wed
Sep 30
9057
UV 6
clear day
Thu
Oct 1
8857
UV 6
partly cloudy day
Fri
Oct 2
9157
UV 6
partly cloudy day
Sat
Oct 3
9664
UV 6
overcast
54°
67°49°
79°50°
85°51°
90°57°
88°57°
91°57°
96°64°

As of 12:15 AM in Emerald Lake Hills, California.

What is measuring near here

The 4 instruments nearest Emerald Lake Hills, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.8 miles away.

measured now2 instruments

Redwood CityRWCC1

At a river or reservoir gauge/1.8 mi away/16 ft/467 ft below here

temp, wind, gust, humidity, pressure

Rank765of 3,115

San Carlos AirportSQL

At an airfield/3.4 mi away/3 ft/480 ft below here

temp, wind, gust, visibility, precip, pressure

Rank3,104of 3,115

measured daily2 instruments

Redwood CityRWCC1

At a cooperative observer's station/1.8 mi away/16 ft/467 ft below here

snowfall, snow depth, precip, high, low

Rank-

San Carlos 1.5 SWCA-SM-49

In a volunteer observer's own ground/1.9 mi away/609 ft/126 ft above here

precip, snowfall, snow depth

Rank-

Station report

The weather at San Carlos Airport, drawn

The nearest airport reporting now, 3.4 mi from Emerald Lake Hills. From its report of Sep 26, 2026, 11:55 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 San Carlos Airport, 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 SQLFIG. A THE SKY OVER SAN CARLOS AIRPORTSECTION, 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 MORE0510TITLESan Carlos Airport, the skySTATION REPORT · ASOS SQLTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-SQL-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

59.0 F with a dew point of 51.8 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 San Carlos Airport: temperature 59.0 degrees Fahrenheit and dew point 51.8, 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 SQLFIG. B THE AIR AT SAN CARLOS AIRPORTTHE 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 50.1 FTEMPERATURE 59.0 FDEW POINT 51.8 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 POINTTITLESan Carlos Airport, the airSTATION REPORT · ASOS SQLTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-SQL-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at San Carlos Airport, 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 SQLFIG. C THE WIND AT SAN CARLOS AIRPORTPLAN, 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 FORCE73TITLESan Carlos Airport, the windSTATION REPORT · ASOS SQLTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-SQL-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of San Carlos Airport, 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 Emerald Lake Hills

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