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Seneca, South Carolina

City in Oconee County, South Carolina

Air quality

The air at Seneca

Index 21, good, led by ozone. Read at 6 AM from its reporting area, Macon County (NC), 42 miles off.

21Good
  • Ozone21Good-

The days ahead

Good each day through Mon Oct 19, led by ozone. Yesterday measured 33, good.

Smoke, the next 44 hours

No smoke near the ground through Mon 2 AM.

SatSun

Precipitation

What has fallen at Seneca

None in the last 3 days, to Sat 6 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.00in

Visibility

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

Visibility stays 10 miles or more through Mon 2 AM.

SatSun

On the radar over Seneca, South CarolinaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Seneca, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.3 miles away.

measured now4 instruments

SC-11 @ SC-28SC002

Beside a road/8.4 mi away/1,024 ft/67 ft above here

temp, pavement temp, wind, visibility, precip

Rank-

measured daily2 instruments

Seneca 0.8 SSESC-OC-73

In a volunteer observer's own ground/0.4 mi away/950 ft/7 ft below here

precip, snowfall, snow depth

Rank-

ClemsonCLES1

At a cooperative observer's station/7.5 mi away/798 ft/159 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Citizen station KE4OGG, drawn

The nearest instrument reporting now, 0.3 mi from Seneca, South Carolina. From its report of undefined: 3 of its 4 sheets.

The wind

From the north northwest (330 degrees) at 2 mph, gusting 6 mph: force 1, a light air on the Beaufort scale.

Plan of the wind at Citizen station KE4OGG, north up: blowing from 330 degrees, the north northwest, at 2 miles an hour, gusting 6; beside it the Beaufort scale from calm to hurricane force, force 1, light air, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT KE4OGGFIG. C THE WIND AT CITIZEN STATION KE4OGGPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 330°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 2 MPH2LIGHT BREEZE4GUST, 6 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLECitizen station KE4OGG, the windSTATION REPORT · CWOP KE4OGGTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 1 of 4DATE2026-10-17IDSR-KE4OGG-1DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

The column

At 944 ft above sea level, 3 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 28.91 inHg and the temperature at 55.6 F; the station's altimeter setting of 30.09 inHg means its barometer reads 29.08 inHg; it reports 53.0 F, 2.6 F colder than standard.

Section from sea level of where Citizen station KE4OGG stands in the atmosphere, height to scale: the station 944 feet above sea level with 3 per cent of the air below it; the standard atmosphere's pressure there, 28.91 inches of mercury, and temperature, 55.6 degrees Fahrenheit; the altimeter setting of 30.09 and the station pressure it means, 29.08.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT KE4OGGFIG. D WHERE CITIZEN STATION KE4OGG STANDS IN THE ATMOSPHERESECTION FROM SEA LEVEL, HEIGHT TO SCALE, THE STATION IN THE STANDARD ATMOSPHEREFT ABOVE SEA LEVEL05,00010,00015,000SEA LEVEL, 29.92 inHg IN THE STANDARD ATMOSPHERECITIZEN STATION KE4OGG3 PER CENT OF THE AIR BELOW IT944 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 FTSTANDARD PRESSURE HERE28.91 inHgSTANDARD TEMPERATURE HERE55.6 FALTIMETER SETTING, REPORTED30.09 inHgITS BAROMETER READS29.08 inHgTEMPERATURE, REPORTED53.0 FTITLECitizen station KE4OGG, the columnSTATION REPORT · CWOP KE4OGGTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 4DATE2026-10-17IDSR-KE4OGG-2DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

The sun

On Oct 17 the noon sun stands 46 degrees above the horizon at 34.68 N, and the day is 11 h 07 min long. Level ground there takes 72 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Citizen station KE4OGG, angles true: on Oct 17 it stands 46 degrees above the horizon, against 79 at the June solstice, 55 at the equinoxes and 32 at the December solstice; the day is 11 h 07 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT KE4OGGFIG. E THE SUN AT CITIZEN STATION KE4OGGELEVATION LOOKING WEST, SOUTH TO THE LEFT: THE NOON SUN ON THE DAY OF THE REPORT, AND AT THE SOLSTICES AND EQUINOXES; ANGLES TRUETHE STATIONJUNE SOLSTICE 79°EQUINOXES 55°DECEMBER SOLSTICE 32°OCT 17, 46°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 11 H 07 MINLEVEL GROUND TAKES 72 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 34.68 N; THE SUN'S DECLINATION -9.4°TITLECitizen station KE4OGG, the sunSTATION REPORT · CWOP KE4OGGTYPEELEVATIONSCALEANGLES TRUEREVAS REPORTED SHEET 3 of 4DATE2026-10-17IDSR-KE4OGG-3DRAWN AS linework on paperSOURCES FB-ENG-007

The full report of Citizen station KE4OGG, in 4 sheets, each beside the Field Book plates that explain it

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Snow on the ground

Elsewhere in South Carolina

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

Near Seneca

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

Near Seneca

River and lake gauges