Storm Station
McCormick, South Carolina
64°
Clear· Feels like 64°·Calm 0 mph N
Sunny, with a high near 81. North wind around 3 mph.
-UV
-Air quality
54%Humidity
1%Cloud

What is measuring near here

The 5 instruments nearest McCormick, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 2.9 miles away.

measured now3 instruments

Plumb Branch Lake ThurmondPLBS1

At a river or reservoir gauge/6.5 mi away/358 ft/115 ft below here

temp, wind, gust, humidity, pressure

Rank372of 378

Greenwood County AirportGRD

At an airfield/24.1 mi away/630 ft/157 ft above here

temp, wind, gust, visibility, precip, pressure

Rank-

US-25 @ I-20SC014

Beside a road/31.8 mi away/499 ft/26 ft above here

temp, pavement temp, wind, visibility, precip

Rank-

measured daily2 instruments

McCormick 2.3 WSC-MC-5

In a volunteer observer's own ground/2.9 mi away/468 ft/5 ft below here

precip, snowfall, snow depth

Rank-

McCormickMCCS1

At a cooperative observer's station/7.7 mi away/465 ft/8 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Plumb Branch Lake Thurmond, drawn

The nearest instrument reporting now, 6.5 mi from McCormick. From its report of Sep 27, 2026, 6:00 AM local time: 3 of its 5 sheets.

The air

55.7 F with a dew point of 54.2 F, 95 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 300 ft up.

Chart of the air at Plumb Branch Lake Thurmond: temperature 55.7 degrees Fahrenheit and dew point 54.2, 95 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 300 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT PLBS1FIG. B THE AIR AT PLUMB BRANCH LAKE THURMONDTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00040 F50 F60 F70 FSATURATES 300 FT ABOVE THE STATION, AT 53.9 FTEMPERATURE AND DEW POINT 55.7 F, 54.2 FRELATIVE HUMIDITY 95 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 POINTTITLEPlumb Branch Lake Thurmond, the airSTATION REPORT · DCP PLBS1TYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 5DATE2026-09-27IDSR-PLBS1-1DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north (354 degrees) at 1 mph: force 1, a light air on the Beaufort scale.

Plan of the wind at Plumb Branch Lake Thurmond, north up: blowing from 354 degrees, the north, at 1 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 1, light air, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT PLBS1FIG. C THE WIND AT PLUMB BRANCH LAKE THURMONDPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 354°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 1 MPH2LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEPlumb Branch Lake Thurmond, the windSTATION REPORT · DCP PLBS1TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 2 of 5DATE2026-09-27IDSR-PLBS1-2DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

The column

At 358 ft above sea level, 1 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.54 inHg and the temperature at 57.7 F; it reports 55.7 F, 2.0 F colder than standard.

Section from sea level of where Plumb Branch Lake Thurmond stands in the atmosphere, height to scale: the station 358 feet above sea level with 1 per cent of the air below it; the standard atmosphere's pressure there, 29.54 inches of mercury, and temperature, 57.7 degrees Fahrenheit.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT PLBS1FIG. D WHERE PLUMB BRANCH LAKE THURMOND 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 ATMOSPHEREPLUMB BRANCH LAKE THURMOND1 PER CENT OF THE AIR BELOW IT358 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 HERE29.54 inHgSTANDARD TEMPERATURE HERE57.7 FTEMPERATURE, REPORTED55.7 FTITLEPlumb Branch Lake Thurmond, the columnSTATION REPORT · DCP PLBS1TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 3 of 5DATE2026-09-27IDSR-PLBS1-3DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

The full report of Plumb Branch Lake Thurmond, in 5 sheets, each beside the Field Book plates that explain it

0in

Snow on the ground

Measured at McCormick (MCCS1), 7.7 miles from here, read 26 Sep, 08:00. measured daily

Elsewhere in South Carolina

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

Near McCormick

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