Storm Station
Sign inMy Station

Port Allegany, Pennsylvania

Borough in McKean County, Pennsylvania

Air quality

The air at Port Allegany

Index 34, good, led by ozone. Read at 2 PM from its reporting area, Western New York Region (NY), 70 miles off.

34Good
  • Fine particles (PM2.5)17Good-
  • Ozone34Good-

The days ahead

Good each day through Mon Oct 19, led by fine particles. Yesterday measured 30, good.

Smoke, the next 42 hours

No smoke near the ground through Tue 8 AM.

SunMonTue

Precipitation

What has fallen at Port Allegany

None in the last 24 hours; 0.33 in over the last 3 days, to Sun 1 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.33in

Visibility

How far you can see at Port Allegany, the next 42 hours

Visibility stays 10 miles or more through Tue 8 AM.

SunMonTue

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

What is measuring near here

The 6 instruments nearest Port Allegany, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.7 miles away.

measured now4 instruments

measured daily2 instruments

Port Allegany 4.9 ENEPA-PT-1

In a volunteer observer's own ground/5.0 mi away/1,716 ft/230 ft above here

precip, snowfall, snow depth

Rank-

Coudersport 1 SWCSPP1

At a cooperative observer's station/12.6 mi away/2,093 ft/607 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Bradford Regional, drawn

The nearest airport reporting now, 18.5 mi from Port Allegany, Pennsylvania. From its report of Oct 18, 2026, 2:53 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 Bradford Regional, 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 BFDFIG. A THE SKY OVER BRADFORD REGIONALSECTION, 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 MORE0510TITLEBradford Regional, the skySTATION REPORT · ASOS BFDTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-18IDSR-BFD-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

58.0 F with a dew point of 19.0 F, 22 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 8,700 ft up.

Chart of the air at Bradford Regional: temperature 58.0 degrees Fahrenheit and dew point 19.0, 22 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 8,700 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT BFDFIG. B THE AIR AT BRADFORD REGIONALTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION02,0004,0006,0008,00010,0000 F20 F40 F60 FSATURATES 8,700 FT ABOVE THE STATION, AT 11.3 FTEMPERATURE 58.0 FDEW POINT 19.0 FSPREAD 39.0 FRELATIVE HUMIDITY 22 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 POINTTITLEBradford Regional, the airSTATION REPORT · ASOS BFDTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-18IDSR-BFD-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west northwest (290 degrees) at 7 mph: force 2, a light breeze on the Beaufort scale.

Plan of the wind at Bradford Regional, north up: blowing from 290 degrees, the west 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 BFDFIG. C THE WIND AT BRADFORD REGIONALPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 290°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 7 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEBradford Regional, the windSTATION REPORT · ASOS BFDTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-18IDSR-BFD-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Coudersport 1 SW (CSPP1), 12.6 miles from here, read 16 Oct, 07:00. measured daily

Elsewhere in Pennsylvania

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

Near Port Allegany

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

Near Port Allegany

River and lake gauges