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Grassflat, Pennsylvania

Community in Clearfield County, Pennsylvania

Air quality

The air at Grassflat

Index 22, good, led by ozone. Read at 6 AM from its reporting area, State College (PA), 19 miles off.

22Good
  • Fine particles (PM2.5)9Good17.8 mi
  • Ozone22Good25 ppb17.8 mi

The days ahead

Good each day through Tue Oct 20, led by fine particles. Yesterday measured 23, good.

Smoke, the next 44 hours

No smoke near the ground through Mon 2 AM.

SatSun

Precipitation

What has fallen at Grassflat

0.41 in in the last 24 hours, 0.69 in over the last 3 days, to Sat 6 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.41in
Last 3 days
0.69in

Visibility

How far you can see at Grassflat, the next 44 hours

Visibility stays 10 miles or more through Mon 2 AM.

SatSun

On the radar over Grassflat, PennsylvaniaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 7 instruments nearest Grassflat, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 3.0 miles away.

measured now5 instruments

Bear KnobBKBP1

At a river or reservoir gauge/10.0 mi away/2,205 ft/738 ft above here

temp, wind, gust, humidity, pressure

Rank497of 1,394

measured daily2 instruments

Philipsburg 8.1 ENEPA-CN-51

In a volunteer observer's own ground/6.4 mi away/1,857 ft/390 ft above here

precip, snowfall, snow depth

Rank-

PhilipsburgPLBP1

At a cooperative observer's station/10.4 mi away/1,719 ft/252 ft above here

snowfall, snow depth, precip, high, low

Rank96of 1,394

Station report

The weather at Clearfield-Lawrence Apt(Was N97), drawn

The nearest airport reporting now, 15.9 mi from Grassflat, Pennsylvania. From its report of Oct 17, 2026, 7:12 AM local time: 3 of its 6 sheets.

The sky

Broken at 2,300 ft, overcast at 3,100 ft; the ceiling is 2,300 ft; visibility 10 mi or more.

Section of the sky over Clearfield-Lawrence Apt(Was N97), height above the station to scale: broken cloud with its base at 2,300 feet, overcast cloud with its base at 3,100 feet, the ceiling at 2,300 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FIGFIG. A THE SKY OVER CLEARFIELD-LAWRENCE APT(WAS N97)SECTION, 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 STATION01,0002,0003,0004,0005,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 3,100 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 2,300 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYCEILING 2,300 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEClearfield-Lawrence Apt(Was N97), the skySTATION REPORT · ASOS FIGTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-17IDSR-FIG-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

40.0 F with a dew point of 35.0 F, 82 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,200 ft up; the lowest cloud reported is at 2,300 ft.

Chart of the air at Clearfield-Lawrence Apt(Was N97): temperature 40.0 degrees Fahrenheit and dew point 35.0, 82 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,200 feet above the station, against the lowest cloud reported at 2,300 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FIGFIG. B THE AIR AT CLEARFIELD-LAWRENCE APT(WAS N97)THE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00020 F30 F40 F50 FSATURATES 1,200 FT ABOVE THE STATION, AT 33.9 FLOWEST CLOUD REPORTED, BKN 2,300 FTTEMPERATURE 40.0 FDEW POINT 35.0 FSPREAD 5.0 FRELATIVE HUMIDITY 82 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 POINTTITLEClearfield-Lawrence Apt(Was N97), the airSTATION REPORT · ASOS FIGTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-17IDSR-FIG-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north northwest (340 degrees) at 12 mph, gusting 22 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 28 mph.

Plan of the wind at Clearfield-Lawrence Apt(Was N97), north up: blowing from 340 degrees, the north northwest, at 12 miles an hour, gusting 22; beside it the Beaufort scale from calm to hurricane force, force 3, gentle breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FIGFIG. C THE WIND AT CLEARFIELD-LAWRENCE APT(WAS N97)PLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 340°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 12 MPH4MODERATE BREEZE135FRESH BREEZE19GUST, 22 MPH6STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEClearfield-Lawrence Apt(Was N97), the windSTATION REPORT · ASOS FIGTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-17IDSR-FIG-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Clearfield-Lawrence Apt(Was N97), in 6 sheets, each beside the Field Book plates that explain it

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Snow on the ground

Elsewhere in Pennsylvania

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

Near Grassflat

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

Near Grassflat

River and lake gauges