Storm Station
Twin Rocks, Pennsylvania
56°
Overcast· Feels like 56°·Light air 4 mph N
Mostly cloudy, with a low around 49. Northwest wind around 7 mph.
-UV
-Air quality
69%Humidity
81%Cloud

What is measuring near here

The 5 instruments nearest Twin Rocks, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 4.1 miles away.

measured now3 instruments

Johnstown/CambriaJST

At an airfield/12.9 mi away/2,283 ft/513 ft above here

temp, wind, gust, visibility, precip, pressure

Rank39of 543

Blair Helibase RawsBLHP1

A remote fire weather station/23.4 mi away/1,155 ft/615 ft below here

temp, wind, gust, humidity, pressure

Rank62of 543

measured daily2 instruments

Colver 0.5 SSWPA-CM-6

In a volunteer observer's own ground/4.1 mi away/1,995 ft/225 ft above here

precip, snowfall, snow depth

Rank-

EbensburgEBNP1

At a cooperative observer's station/7.1 mi away/1,929 ft/159 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Johnstown/Cambria, drawn

The nearest airport reporting now, 12.9 mi from Twin Rocks. From its report of Sep 27, 2026, 3:54 AM local time: 3 of its 6 sheets.

The sky

Scattered at 8,000 ft; visibility 10 mi or more.

Section of the sky over Johnstown/Cambria, height above the station to scale: scattered cloud with its base at 8,000 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT JSTFIG. A THE SKY OVER JOHNSTOWN/CAMBRIASECTION, 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 STATION02,5005,0007,50010,00012,500ETAGESLOWMIDDLETHE STATIONTHE CEILOMETER READS TO 12,000 FTSCT 8,000 FTSCATTERED, 3 TO 4 EIGHTHS OF THE SKYVISIBILITY, MILES: 10 MI OR MORE0510TITLEJohnstown/Cambria, the skySTATION REPORT · ASOS JSTTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-JST-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-013, FB-SKY-014

The air

51.0 F with a dew point of 45.0 F, 80 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,400 ft up; the lowest cloud reported is at 8,000 ft.

Chart of the air at Johnstown/Cambria: temperature 51.0 degrees Fahrenheit and dew point 45.0, 80 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,400 feet above the station, against the lowest cloud reported at 8,000 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT JSTFIG. B THE AIR AT JOHNSTOWN/CAMBRIATHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,0006,00030 F40 F50 F60 FSATURATES 1,400 FT ABOVE THE STATION, AT 43.7 FABOVE THIS SHEET: LOWEST CLOUD REPORTED, SCT 8,000 FTTEMPERATURE 51.0 FDEW POINT 45.0 FSPREAD 6.0 FRELATIVE HUMIDITY 80 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 POINTTITLEJohnstown/Cambria, the airSTATION REPORT · ASOS JSTTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-JST-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north northwest (340 degrees) at 7 mph: force 2, a light breeze on the Beaufort scale.

Plan of the wind at Johnstown/Cambria, north up: blowing from 340 degrees, the north 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 JSTFIG. C THE WIND AT JOHNSTOWN/CAMBRIAPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 340°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 7 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEJohnstown/Cambria, the windSTATION REPORT · ASOS JSTTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-JST-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

-in

Snow on the ground

Elsewhere in Pennsylvania

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

Near Twin Rocks

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