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Royal City, Washington

City in Grant County, Washington

Air quality

The air at Royal City

Index 41, good, led by fine particles. Read at 8 PM from its reporting area, Moses Lake (WA), 23 miles off.

41Good
  • Fine particles (PM2.5)41Good-

The days ahead

Good each day through Fri Oct 16, led by fine particles. Yesterday measured 39, good.

Smoke, the next 46 hours

Little smoke near the ground through Sat 5 PM: the index from smoke stays at 17 or under.

ThuFriSat

Precipitation

What has fallen at Royal City

None in the last 3 days, to Thu 7 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 Royal City, the next 46 hours

Visibility stays 10 miles or more through Sat 5 PM.

ThuFriSat

On the radar over Royal City, WashingtonReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Royal City, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 9.8 miles away.

measured now4 instruments

measured daily2 instruments

Station report

The weather at Moses Lake/Grant Co, drawn

The nearest airport reporting now, 25.7 mi from Royal City, Washington. From its report of Oct 15, 2026, 7:52 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 Moses Lake/Grant Co, 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 MWHFIG. A THE SKY OVER MOSES LAKE/GRANT COSECTION, 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 MORE0510TITLEMoses Lake/Grant Co, the skySTATION REPORT · ASOS MWHTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-MWH-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

54.0 F with a dew point of 34.0 F, 47 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 4,500 ft up.

Chart of the air at Moses Lake/Grant Co: temperature 54.0 degrees Fahrenheit and dew point 34.0, 47 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 4,500 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MWHFIG. B THE AIR AT MOSES LAKE/GRANT COTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,0006,00020 F30 F40 F50 F60 FSATURATES 4,500 FT ABOVE THE STATION, AT 29.8 FTEMPERATURE 54.0 FDEW POINT 34.0 FSPREAD 20.0 FRELATIVE HUMIDITY 47 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 POINTTITLEMoses Lake/Grant Co, the airSTATION REPORT · ASOS MWHTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-MWH-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north northeast (30 degrees) at 5 mph: force 2, a light breeze on the Beaufort scale.

Plan of the wind at Moses Lake/Grant Co, north up: blowing from 30 degrees, the north northeast, 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 MWHFIG. C THE WIND AT MOSES LAKE/GRANT COPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 30°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 5 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEMoses Lake/Grant Co, the windSTATION REPORT · ASOS MWHTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-MWH-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Moses Lake/Grant Co, in 6 sheets, each beside the Field Book plates that explain it

0in

Snow on the ground

Measured at Priest Rapids Dam (PRWW1), 22.3 miles from here, read 15 Oct, 20:00. measured daily

Elsewhere in Washington

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

Near Royal City

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

Near Royal City

River and lake gauges