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Arp, Texas

City in Smith County, Texas

Air quality

The air at Arp

Index 46, good, led by fine particles. Read at 10 PM from its reporting area, Tyler-Longview-Marshall (TX), 17 miles off.

46Good
  • Fine particles (PM2.5)46Good-
  • Ozone36Good33 ppb22.5 mi

The days ahead

Good each day through Sun Oct 18, led by ozone. Yesterday measured 28, good.

Smoke, the next 45 hours

Little smoke near the ground through Sat 7 PM: the index from smoke stays at 6 or under.

FriSat

Precipitation

What has fallen at Arp

None in the last 24 hours; 0.04 in over the last 3 days, to Thu 10 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.04in

Visibility

How far you can see at Arp, the next 45 hours

Visibility stays 10 miles or more through Sat 7 PM.

FriSat

On the radar over Arp, TexasReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 5 instruments nearest Arp, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 7.0 miles away.

measured now3 instruments

measured daily2 instruments

Tyler 8.9 ESETX-SM-24

In a volunteer observer's own ground/7.0 mi away/425 ft/62 ft below here

precip, snowfall, snow depth

Rank-

TylerTLYT2

At a cooperative observer's station/15.0 mi away/525 ft/38 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Henderson, drawn

The nearest airport reporting now, 13.5 mi from Arp, Texas. From its report of Oct 15, 2026, 10:35 PM local time: 3 of its 6 sheets.

The sky

No cloud below 12,000 ft; visibility 10 mi or more.

Section of the sky over Henderson, height above the station to scale: no cloud detected below 12,000 feet, the reach of its ceilometer, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT RFIFIG. A THE SKY OVER HENDERSONSECTION, 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 STATION05001,0001,5002,0002,5003,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETNO CLOUD DETECTED BELOW 12,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEHenderson, the skySTATION REPORT · ASOS RFITYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-RFI-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

70.7 F with a dew point of 67.3 F, 89 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 800 ft up.

Chart of the air at Henderson: temperature 70.7 degrees Fahrenheit and dew point 67.3, 89 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 800 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT RFIFIG. B THE AIR AT HENDERSONTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00060 F70 F80 FSATURATES 800 FT ABOVE THE STATION, AT 66.4 FTEMPERATURE 70.7 FDEW POINT 67.3 FSPREAD 3.4 FRELATIVE HUMIDITY 89 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 POINTTITLEHenderson, the airSTATION REPORT · ASOS RFITYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-RFI-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Henderson, 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 RFIFIG. C THE WIND AT HENDERSONPLAN, 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 FORCE73TITLEHenderson, the windSTATION REPORT · ASOS RFITYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-RFI-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

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Snow on the ground

Elsewhere in Texas

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

Near Arp

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

Near Arp

River and lake gauges