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Upper Witter Gulch, Colorado

Community in Clear Creek County, Colorado

Air quality

The air at Upper Witter Gulch

Index 65, moderate, led by fine particles. Read at 12 AM from its reporting area, Denver-Boulder (CO), 26 miles off.

65Moderate
  • Fine particles (PM2.5)65Moderate22.1 mi
  • Ozone28Good20 ppb23.5 mi
  • Coarse particles (PM10)15Good-
  • Nitrogen dioxide8Good9.1 ppb22.1 mi
  • Sulfur dioxide0Good0.6 ppb23.5 mi
  • Carbon monoxide-0.2 ppm22.1 mi

The days ahead

Good each day through Today, led by fine particles. Yesterday measured 43, good.

Smoke, the next 42 hours

No smoke near the ground through Sat 6 PM.

FriSat

Precipitation

What has fallen at Upper Witter Gulch

None in the last 24 hours; 1.05 in over the last 3 days, to Fri 12 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
1.05in

Visibility

How far you can see at Upper Witter Gulch, the next 42 hours

Mist or haze: visibility falls to 2 miles Fri 3 AM.

FriSat

On the radar over Upper Witter Gulch, ColoradoReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 7 instruments nearest Upper Witter Gulch, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.3 miles away.

measured now5 instruments

measured daily2 instruments

EvergreenEVGC2

At a cooperative observer's station/6.0 mi away/7,087 ft/1,025 ft below here

snowfall, snow depth, precip, high, low

Rank201of 2,650

Station report

The weather at Corral Creek RAWS, drawn

The nearest instrument reporting now, 2.6 mi from Upper Witter Gulch, Colorado. From its report of Oct 15, 2026, 11:58 PM local time: 3 of its 5 sheets.

The air

28.0 F with a dew point of 27.0 F, 96 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 200 ft up.

Chart of the air at Corral Creek RAWS: temperature 28.0 degrees Fahrenheit and dew point 27.0, 96 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 200 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CEKC2FIG. B THE AIR AT CORRAL CREEK RAWSTHE 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 200 FT ABOVE THE STATION, AT 26.7 FTEMPERATURE AND DEW POINT 28.0 F, 27.0 FRELATIVE HUMIDITY 96 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 POINTTITLECorral Creek RAWS, the airSTATION REPORT · DCP CEKC2TYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 5DATE2026-10-16IDSR-CEKC2-1DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west northwest (302 degrees) at 2 mph, gusting 4 mph: force 1, a light air on the Beaufort scale. The strongest gust today was 25 mph.

Plan of the wind at Corral Creek RAWS, north up: blowing from 302 degrees, the west northwest, at 2 miles an hour, gusting 4; beside it the Beaufort scale from calm to hurricane force, force 1, light air, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CEKC2FIG. C THE WIND AT CORRAL CREEK RAWSPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 302°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 2 MPH2LIGHT BREEZE4GUST, 4 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLECorral Creek RAWS, the windSTATION REPORT · DCP CEKC2TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 2 of 5DATE2026-10-16IDSR-CEKC2-2DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

The column

At 8,041 ft above sea level, 26 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 22.19 inHg and the temperature at 30.3 F; it reports 28.0 F, 2.3 F colder than standard.

Section from sea level of where Corral Creek RAWS stands in the atmosphere, height to scale: the station 8,041 feet above sea level with 26 per cent of the air below it; the standard atmosphere's pressure there, 22.19 inches of mercury, and temperature, 30.3 degrees Fahrenheit.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CEKC2FIG. D WHERE CORRAL CREEK RAWS 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 ATMOSPHERECORRAL CREEK RAWS26 PER CENT OF THE AIR BELOW IT8,041 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 HERE22.19 inHgSTANDARD TEMPERATURE HERE30.3 FTEMPERATURE, REPORTED28.0 FTITLECorral Creek RAWS, the columnSTATION REPORT · DCP CEKC2TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 3 of 5DATE2026-10-16IDSR-CEKC2-3DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

The full report of Corral Creek RAWS, in 5 sheets, each beside the Field Book plates that explain it

0in

Snow on the ground

Measured at Evergreen (EVGC2), 6.0 miles from here, read 15 Oct, 07:45. measured daily

Elsewhere in Colorado

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

Near Upper Witter Gulch

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

Near Upper Witter Gulch

River and lake gauges