Storm Station
Mammoth, Wyoming
52°
Overcast· Feels like 52°·Light breeze 5 mph SSW
Mostly cloudy, with a low around 41. East southeast wind around 5 mph.
-UV
-Air quality
26%Humidity
79%Cloud

What is measuring near here

The 3 instruments nearest Mammoth, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.4 miles away.

measured now2 instruments

Yellowstone (RAMOS)P60

At an airfield/32.4 mi away/7,769 ft/1,742 ft above here

temp, wind, gust, visibility, precip, pressure

Rank1of 622

measured daily1 instrument

YNP Mammoth - COOPYLWW4

At a cooperative observer's station/0.4 mi away/6,024 ft/3 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Yellowstone (RAMOS), drawn

The nearest airport reporting now, 32.4 mi from Mammoth. From its report of Sep 27, 2026, 1:56 AM local time: 3 of its 5 sheets.

The air

34.0 F with a dew point of 30.0 F, 85 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 900 ft up.

Chart of the air at Yellowstone (RAMOS): temperature 34.0 degrees Fahrenheit and dew point 30.0, 85 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 900 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT P60FIG. B THE AIR AT YELLOWSTONE (RAMOS)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 FSATURATES 900 FT ABOVE THE STATION, AT 29.1 FTEMPERATURE 34.0 FDEW POINT 30.0 FSPREAD 4.0 FRELATIVE HUMIDITY 85 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 POINTTITLEYellowstone (RAMOS), the airSTATION REPORT · ASOS P60TYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 5DATE2026-09-27IDSR-P60-1DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Yellowstone (RAMOS), 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 P60FIG. C THE WIND AT YELLOWSTONE (RAMOS)PLAN, 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 FORCE73TITLEYellowstone (RAMOS), the windSTATION REPORT · ASOS P60TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 2 of 5DATE2026-09-27IDSR-P60-2DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The column

At 7,769 ft above sea level, 25 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 22.42 inHg and the temperature at 31.3 F; the station's altimeter setting of 30.25 inHg means its barometer reads 22.67 inHg; it reports 34.0 F, 2.7 F warmer than standard.

Section from sea level of where Yellowstone (RAMOS) stands in the atmosphere, height to scale: the station 7,769 feet above sea level with 25 per cent of the air below it; the standard atmosphere's pressure there, 22.42 inches of mercury, and temperature, 31.3 degrees Fahrenheit; the altimeter setting of 30.25 and the station pressure it means, 22.67.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT P60FIG. D WHERE YELLOWSTONE (RAMOS) STANDS IN THE ATMOSPHERESECTION FROM SEA LEVEL, HEIGHT TO SCALE, THE STATION IN THE STANDARD ATMOSPHEREFT ABOVE SEA LEVEL05,00010,00015,00020,000SEA LEVEL, 29.92 inHg IN THE STANDARD ATMOSPHEREYELLOWSTONE (RAMOS)25 PER CENT OF THE AIR BELOW IT7,769 FT10 PER CENT OF THE AIR BELOW, 2,890 FT20 PER CENT OF THE AIR BELOW, 6,050 FT30 PER CENT OF THE AIR BELOW, 9,540 FT40 PER CENT OF THE AIR BELOW, 13,470 FT50 PER CENT OF THE AIR BELOW, 17,970 FTSTANDARD PRESSURE HERE22.42 inHgSTANDARD TEMPERATURE HERE31.3 FALTIMETER SETTING, REPORTED30.25 inHgITS BAROMETER READS22.67 inHgTEMPERATURE, REPORTED34.0 FTITLEYellowstone (RAMOS), the columnSTATION REPORT · ASOS P60TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 3 of 5DATE2026-09-27IDSR-P60-3DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

The full report of Yellowstone (RAMOS), in 5 sheets, each beside the Field Book plates that explain it

-in

Snow on the ground

Elsewhere in Wyoming

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

Near Mammoth

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