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Lake Morton-Berrydale, Washington

Community in King County, Washington

Air quality

The air at Lake Morton-Berrydale

Index 24, good, led by fine particles. Read at 9 PM from its reporting area, Cascades of East King County (WA), 15 miles off.

24Good
  • Fine particles (PM2.5)24Good17.3 mi
  • Ozone-22 ppb19 mi
  • Coarse particles (PM10)-19 mi
  • Nitrogen dioxide7Good7.4 ppb19 mi
  • Sulfur dioxide0Good0.7 ppb19 mi
  • Carbon monoxide-0.2 ppm19 mi

The days ahead

Good each day through Sat Oct 24, led by fine particles. Yesterday measured 20, good.

Smoke, the next 45 hours

Little smoke near the ground through Wed 5 PM: the index from smoke stays at 6 or under.

TueWed

Precipitation

What has fallen at Lake Morton-Berrydale

None in the last 24 hours; 0.07 in over the last 3 days, to Mon 8 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.07in

Visibility

How far you can see at Lake Morton-Berrydale, the next 45 hours

Visibility stays 7 miles or more through Wed 5 PM, lowest 8 miles Tue 8 AM.

TueWed

On the radar over Lake Morton-Berrydale, WashingtonReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Lake Morton-Berrydale, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.6 miles away.

measured now4 instruments

measured daily2 instruments

Covington 1.6 WNWWA-KG-161

In a volunteer observer's own ground/3.3 mi away/463 ft/14 ft below here

precip, snowfall, snow depth

Rank-

LandsburgLNBW1

At a cooperative observer's station/6.3 mi away/554 ft/77 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Renton Municipal, drawn

The nearest airport reporting now, 12.3 mi from Lake Morton-Berrydale, Washington. From its report of Oct 19, 2026, 8:53 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 Renton Municipal, 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 RNTFIG. A THE SKY OVER RENTON MUNICIPALSECTION, 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 MORE0510TITLERenton Municipal, the skySTATION REPORT · ASOS RNTTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-20IDSR-RNT-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

54.0 F with a dew point of 46.0 F, 74 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,800 ft up.

Chart of the air at Renton Municipal: temperature 54.0 degrees Fahrenheit and dew point 46.0, 74 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,800 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT RNTFIG. B THE AIR AT RENTON MUNICIPALTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00030 F40 F50 F60 FSATURATES 1,800 FT ABOVE THE STATION, AT 44.2 FTEMPERATURE 54.0 FDEW POINT 46.0 FSPREAD 8.0 FRELATIVE HUMIDITY 74 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 POINTTITLERenton Municipal, the airSTATION REPORT · ASOS RNTTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-20IDSR-RNT-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north northwest (340 degrees) at 7 mph: force 2, a light breeze on the Beaufort scale.

Plan of the wind at Renton Municipal, north up: blowing from 340 degrees, the north northwest, at 7 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 RNTFIG. C THE WIND AT RENTON MUNICIPALPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 340°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 7 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLERenton Municipal, the windSTATION REPORT · ASOS RNTTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-20IDSR-RNT-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

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Snow on the ground

Elsewhere in Washington

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

Near Lake Morton-Berrydale

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

Near Lake Morton-Berrydale

River and lake gauges