Storm Station
Rossmoor, California
79°
Mostly clear· Feels like 79°·Light breeze 7 mph W
Mostly cloudy, with a low around 71. South wind 0 to 5 mph.
-UV
61Air quality
49%Humidity
31%Cloud

What is measuring near here

The 4 instruments nearest Rossmoor, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.3 miles away.

measured now2 instruments

Los Alamitos AAFSLI

At an airfield/1.6 mi away/36 ft/19 ft above here

temp, wind, gust, visibility, precip, pressure

Rank213of 3,115

Whittier Hills- RAWS #5195WTHC1

A remote fire weather station/14.0 mi away/850 ft/833 ft above here

temp, wind, gust, humidity, pressure

Rank631of 3,115

measured daily2 instruments

Los Alamitos 1.3 WSWCA-OR-56

In a volunteer observer's own ground/0.3 mi away/12 ft/5 ft below here

precip, snowfall, snow depth

Rank-

Santa Ana Fire STNSTAC1

At a cooperative observer's station/12.6 mi away/125 ft/108 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Los Alamitos AAF, drawn

The nearest airport reporting now, 1.6 mi from Rossmoor. From its report of Sep 26, 2026, 11:55 PM local time: 3 of its 6 sheets.

The sky

Broken at 600 ft; the ceiling is 600 ft; visibility 8 mi.

Section of the sky over Los Alamitos AAF, height above the station to scale: broken cloud with its base at 600 feet, the ceiling at 600 feet, and visibility of 8 mi.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SLIFIG. A THE SKY OVER LOS ALAMITOS AAFSECTION, 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 SHEETBKN 600 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYCEILING 600 FTVISIBILITY, MILES: 8 MI0510TITLELos Alamitos AAF, the skySTATION REPORT · ASOS SLITYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-SLI-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

72.5 F with a dew point of 69.4 F, 90 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 700 ft up; the lowest cloud reported is at 600 ft.

Chart of the air at Los Alamitos AAF: temperature 72.5 degrees Fahrenheit and dew point 69.4, 90 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 700 feet above the station, against the lowest cloud reported at 600 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SLIFIG. B THE AIR AT LOS ALAMITOS AAFTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00060 F70 F80 FSATURATES 700 FT ABOVE THE STATION, AT 68.6 FLOWEST CLOUD REPORTED, BKN 600 FTTEMPERATURE 72.5 FDEW POINT 69.4 FSPREAD 3.1 FRELATIVE HUMIDITY 90 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 POINTTITLELos Alamitos AAF, the airSTATION REPORT · ASOS SLITYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-SLI-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the south (180 degrees) at 5 mph: force 2, a light breeze on the Beaufort scale.

Plan of the wind at Los Alamitos AAF, north up: blowing from 180 degrees, the south, at 5 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 2, light breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SLIFIG. C THE WIND AT LOS ALAMITOS AAFPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 180°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 5 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLELos Alamitos AAF, the windSTATION REPORT · ASOS SLITYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-SLI-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Los Alamitos AAF, 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 Rossmoor

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