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Grand Coulee, Washington

City in Grant County, Washington

Air quality

The air at Grand Coulee

Index 46, good, led by fine particles. Read at 2 AM from its reporting area, Omak (WA), 40 miles off.

46Good
  • Fine particles (PM2.5)46Good-

The days ahead

Yesterday measured 31, good.

Smoke, the next 45 hours

Smoke near the ground peaks at index 96, moderate, Sat 8 PM.

FriSat

Precipitation

What has fallen at Grand Coulee

None in the last 3 days, to Fri 1 AM. 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 Grand Coulee, the next 45 hours

Visibility stays 10 miles or more through Sat 11 PM.

FriSat

On the radar over Grand Coulee, WashingtonReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 4 instruments nearest Grand Coulee, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.9 miles away.

measured now2 instruments

measured daily2 instruments

Coulee Dam 0.6 SWWA-OK-9

In a volunteer observer's own ground/1.9 mi away/1,053 ft/450 ft below here

precip, snowfall, snow depth

Rank-

Station report

The weather at Electric City, drawn

The nearest airport reporting now, 4.0 mi from Grand Coulee, Washington. From its report of Oct 16, 2026, 2:35 AM 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 Electric City, 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 3W7FIG. A THE SKY OVER ELECTRIC CITYSECTION, 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 MORE0510TITLEElectric City, the skySTATION REPORT · ASOS 3W7TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-3W7-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

44.6 F with a dew point of 41.0 F, 87 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 800 ft up.

Chart of the air at Electric City: temperature 44.6 degrees Fahrenheit and dew point 41.0, 87 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 800 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 3W7FIG. B THE AIR AT ELECTRIC CITYTHE 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 800 FT ABOVE THE STATION, AT 40.2 FTEMPERATURE 44.6 FDEW POINT 41.0 FSPREAD 3.6 FRELATIVE HUMIDITY 87 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 POINTTITLEElectric City, the airSTATION REPORT · ASOS 3W7TYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-3W7-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Electric City, 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 3W7FIG. C THE WIND AT ELECTRIC CITYPLAN, 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 FORCE73TITLEElectric City, the windSTATION REPORT · ASOS 3W7TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-3W7-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Coulee Dam 1 SW (GCXW1), 0.9 miles from here, read 15 Oct, 17:00. measured daily

Elsewhere in Washington

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

Near Grand Coulee

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

Near Grand Coulee

River and lake gauges