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Knappa, Oregon

Community in Clatsop County, Oregon

Air quality

The air at Knappa

Index 46, good, led by fine particles. Read at 12 AM from its reporting area, Longview (WA), 30 miles off.

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

The days ahead

Good each day through Today, led by fine particles. Yesterday measured 17, good.

Smoke, the next 41 hours

Little smoke near the ground through Sat 5 PM: the index from smoke stays at 11 or under.

FriSat

Precipitation

What has fallen at Knappa

None in the last 24 hours; 0.03 in over the last 3 days, to Thu 11 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.03in

Visibility

How far you can see at Knappa, the next 41 hours

Dense fog: visibility falls to 0.1 miles Fri 8 PM, under a mile for 4 hours.

FriSat

On the radar over Knappa, OregonReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Knappa, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.8 miles away.

measured now4 instruments

AstoriaNDBC-ASTO3

At a river or reservoir gauge/9.3 mi away/-/- ft from here

temp, wind, gust, humidity, pressure

Rank1,583of 1,635

measured daily2 instruments

Astoria 11.4 EOR-CT-3

In a volunteer observer's own ground/0.8 mi away/33 ft/75 ft below here

precip, snowfall, snow depth

Rank-

ClatskanieCKSO3

At a cooperative observer's station/18.4 mi away/20 ft/88 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Astoria/Clatsop, drawn

The nearest airport reporting now, 14.5 mi from Knappa, Oregon. From its report of Oct 15, 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 Astoria/Clatsop, 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 ASTFIG. A THE SKY OVER ASTORIA/CLATSOPSECTION, 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 MORE0510TITLEAstoria/Clatsop, the skySTATION REPORT · ASOS ASTTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-AST-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

60.0 F with a dew point of 46.0 F, 60 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 3,200 ft up.

Chart of the air at Astoria/Clatsop: temperature 60.0 degrees Fahrenheit and dew point 46.0, 60 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 3,200 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT ASTFIG. B THE AIR AT ASTORIA/CLATSOPTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,00030 F40 F50 F60 F70 FSATURATES 3,200 FT ABOVE THE STATION, AT 42.9 FTEMPERATURE 60.0 FDEW POINT 46.0 FSPREAD 14.0 FRELATIVE HUMIDITY 60 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 POINTTITLEAstoria/Clatsop, the airSTATION REPORT · ASOS ASTTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-AST-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the east northeast (70 degrees) at 8 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 24 mph.

Plan of the wind at Astoria/Clatsop, north up: blowing from 70 degrees, the east northeast, at 8 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 3, gentle breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT ASTFIG. C THE WIND AT ASTORIA/CLATSOPPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 70°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 8 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEAstoria/Clatsop, the windSTATION REPORT · ASOS ASTTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-AST-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Astoria/Clatsop, in 6 sheets, each beside the Field Book plates that explain it

-

Snow on the ground

Elsewhere in Oregon

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

Near Knappa

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

Near Knappa

River and lake gauges