Dust / Smoke

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Honesty note: CAMS separates dust (desert surface class) from smoke/haze aloft (high AOD, low dust) reliably. Which desert or whose fire is seasonal inference only — Saharan-typical May–Sep on the coast; West Texas dust when only Lubbock/Midland/Abilene are dusty; Mexico ag-fire smoke typical Apr–Jun; Canadian wildfire smoke typical Jul–Sep. We never claim more than that.

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Today + 5-day forecast (Weighted ERCOT)
TODAY ·fcst
Clear
AOD 0.19 · dust 0
int 0/3
09-20 ·fcst
Clear
AOD 0.18 · dust 0
int 0/3
09-21 ·fcst
Clear
AOD 0.19 · dust 0
int 0/3
09-22 ·fcst
Clear
AOD 0.19 · dust 0
int 0/3
09-23 ·fcst
Hazy
AOD 0.24 · dust 0
int 1/3
09-24 ·fcst
Hazy
AOD 0.25 · dust 0
int 1/3
Worst dust city today
Lubbock
Dust 1 µg/m³ · AOD 0.17 · Clear
2026-09-19 (forecast)
Worst US AQI city today
Houston
US AQI 99 · dust 0
2026-09-19 (forecast)
2026-04 day-by-day
Date Event AOD Dust PM2.5 Worst city Kind
04-01 Smoke (Mexico ag fires typical Apr-Jun) 0.33 3 10 Midland (21) actual
04-02 Smoke (Mexico ag fires typical Apr-Jun) 0.46 2 11 Midland (14) actual
04-03 Smoke (Mexico ag fires typical Apr-Jun) 0.39 1 9 Lubbock (9) actual
04-04 Smoke (Mexico ag fires typical Apr-Jun) 0.50 2 10 Midland (14) actual
04-05 Hazy 0.26 3 11 Lubbock (18) actual
04-06 Clear 0.15 1 11 Houston (3) actual
04-07 Hazy 0.22 2 10 Corpus Christi (3) actual
04-08 Hazy 0.22 1 12 Lubbock (4) actual
04-09 Hazy 0.29 1 9 Abilene (4) actual
04-10 Hazy 0.29 1 8 Tyler (2) actual
04-11 Smoke (Mexico ag fires typical Apr-Jun) 0.35 1 8 Lubbock (2) actual
04-12 Smoke (Mexico ag fires typical Apr-Jun) 0.48 1 8 Midland (14) actual
04-13 Smoke (Mexico ag fires typical Apr-Jun) 0.41 2 10 Lubbock (12) actual
04-14 Smoke (Mexico ag fires typical Apr-Jun) 0.37 3 11 Lubbock (18) actual
04-15 Smoke (Mexico ag fires typical Apr-Jun) 0.39 3 11 Lubbock (18) actual
04-16 Hazy 0.29 3 12 Midland (11) actual
04-17 Hazy 0.29 3 10 Midland (30) actual
04-18 Smoke (Mexico ag fires typical Apr-Jun) 0.46 4 12 Lubbock (24) actual
04-19 Smoke (Mexico ag fires typical Apr-Jun) 0.33 3 9 Wichita Falls (9) actual
04-20 Hazy 0.27 3 10 Tyler (8) actual
04-21 Hazy 0.22 3 9 Tyler (7) actual
04-22 Hazy 0.23 2 10 Tyler (4) actual
04-23 Hazy 0.28 3 11 Midland (37) actual
04-24 Smoke (Mexico ag fires typical Apr-Jun) 0.48 4 17 Midland (23) actual
04-25 Smoke (Mexico ag fires typical Apr-Jun) 0.48 5 21 Midland (23) actual
04-26 Smoke (Mexico ag fires typical Apr-Jun) 0.49 5 19 Lubbock (26) actual
04-27 Smoke (Mexico ag fires typical Apr-Jun) 0.55 6 23 Lubbock (31) actual
04-28 Smoke (Mexico ag fires typical Apr-Jun) 0.58 3 19 Midland (23) actual
04-29 Smoke (Mexico ag fires typical Apr-Jun) 0.55 2 14 Midland (12) actual
04-30 Smoke (Mexico ag fires typical Apr-Jun) 0.59 2 15 Lubbock (4) actual
All-time top dust days
Date City Dust AOD Class
2024-07-13 Brownsville 118 0.41 Saharan dust
2024-03-24 Midland 110 0.23 Desert dust
2026-09-15 Corpus Christi 110 0.31 Saharan dust
2024-07-13 McAllen 105 0.48 Saharan dust
2026-09-15 Brownsville 96 0.35 Saharan dust
2024-02-03 Midland 95 0.20 Desert dust
2024-07-30 Corpus Christi 95 0.40 Saharan dust
2024-07-31 Corpus Christi 94 0.40 Saharan dust
2026-06-29 Tyler 93 0.32 Saharan dust
2024-07-01 Corpus Christi 92 0.33 Saharan dust
All-time top smoke days (dust < 10)
Date City AOD Dust Class
2024-06-02 Tyler 1.86 3 Smoke (Mexico ag fires typical Apr-Jun)
2024-05-16 Houston 1.70 2 Smoke (Mexico ag fires typical Apr-Jun)
2024-05-28 DFW 1.45 3 Smoke (Mexico ag fires typical Apr-Jun)
2024-05-02 Tyler 1.39 1 Smoke (Mexico ag fires typical Apr-Jun)
2024-05-22 Tyler 1.32 1 Smoke (Mexico ag fires typical Apr-Jun)
2025-04-19 DFW 1.23 1 Smoke (Mexico ag fires typical Apr-Jun)
2025-04-19 Wichita Falls 1.23 1 Smoke (Mexico ag fires typical Apr-Jun)
2024-05-29 Abilene 1.22 1 Smoke (Mexico ag fires typical Apr-Jun)
2024-05-13 Houston 1.21 1 Smoke (Mexico ag fires typical Apr-Jun)
2024-05-30 Abilene 1.21 2 Smoke (Mexico ag fires typical Apr-Jun)

Plan 3 Part D2 · Classifier heuristics in config (AIR_DUST_UG_MIN etc.) · Data from CityAir / DailyAir (CAMS via Open-Meteo).