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
11-06 ·fcst
Hazy
AOD 0.25 · dust 0
int 1/3
11-07 ·fcst
Smoke / haze aloft
AOD 0.33 · dust 0
int 2/3
11-08 ·fcst
Hazy
AOD 0.20 · dust 0
int 1/3
11-09 ·fcst
Clear
AOD 0.12 · dust 0
int 0/3
11-10 ·fcst
Clear
AOD — · dust —
int 0/3
Worst dust city today
Lubbock
Dust 2 µg/m³ · AOD 0.09 · Clear
2026-11-05 (forecast)
Worst US AQI city today
Houston
US AQI 107 · dust 0
2026-11-05 (forecast)
2025-05 day-by-day
Date Event AOD Dust PM2.5 Worst city Kind
05-01 Smoke (Mexico ag fires typical Apr-Jun) 0.48 6 17 Midland (36) actual
05-02 Smoke (Mexico ag fires typical Apr-Jun) 0.70 3 16 Lubbock (8) actual
05-03 Smoke (Mexico ag fires typical Apr-Jun) 0.38 7 11 Abilene (27) actual
05-04 Hazy 0.21 2 9 Tyler (4) actual
05-05 Smoke (Mexico ag fires typical Apr-Jun) 0.33 1 10 Brownsville (1) actual
05-06 Smoke (Mexico ag fires typical Apr-Jun) 0.61 4 15 Midland (27) actual
05-07 Smoke (Mexico ag fires typical Apr-Jun) 0.38 4 18 Midland (10) actual
05-08 Smoke (Mexico ag fires typical Apr-Jun) 0.49 4 18 Lubbock (11) actual
05-09 Smoke (Mexico ag fires typical Apr-Jun) 0.37 3 16 Lubbock (7) actual
05-10 Smoke (Mexico ag fires typical Apr-Jun) 0.34 3 17 Austin (5) actual
05-11 Hazy 0.24 3 15 Abilene (7) actual
05-12 Clear 0.15 3 14 Lubbock (12) actual
05-13 Hazy 0.20 5 9 Midland (40) actual
05-14 Hazy 0.23 7 10 Midland (38) actual
05-15 Smoke (Mexico ag fires typical Apr-Jun) 0.35 7 16 Midland (33) actual
05-16 Smoke (Mexico ag fires typical Apr-Jun) 0.43 5 19 Midland (13) actual
05-17 Smoke (Mexico ag fires typical Apr-Jun) 0.54 2 17 Midland (11) actual
05-18 Smoke (Mexico ag fires typical Apr-Jun) 0.55 2 17 Midland (27) actual
05-19 Smoke (Mexico ag fires typical Apr-Jun) 0.66 5 16 Midland (51) actual
05-20 Smoke (Mexico ag fires typical Apr-Jun) 0.49 4 15 Midland (23) actual
05-21 Smoke (Mexico ag fires typical Apr-Jun) 0.44 3 14 Lubbock (9) actual
05-22 Smoke (Mexico ag fires typical Apr-Jun) 0.45 3 17 Lubbock (9) actual
05-23 Smoke (Mexico ag fires typical Apr-Jun) 0.38 2 14 Lubbock (5) actual
05-24 Smoke (Mexico ag fires typical Apr-Jun) 0.34 2 13 Lubbock (11) actual
05-25 Smoke (Mexico ag fires typical Apr-Jun) 0.40 4 14 Corpus Christi (7) actual
05-26 Smoke (Mexico ag fires typical Apr-Jun) 0.55 2 16 Corpus Christi (4) actual
05-27 Smoke (Mexico ag fires typical Apr-Jun) 0.48 2 17 Lubbock (6) actual
05-28 Smoke (Mexico ag fires typical Apr-Jun) 0.61 2 17 Lubbock (7) actual
05-29 Smoke (Mexico ag fires typical Apr-Jun) 0.46 2 19 Abilene (3) actual
05-30 Smoke (Mexico ag fires typical Apr-Jun) 0.70 3 19 Brownsville (21) actual
05-31 Smoke (Mexico ag fires typical Apr-Jun) 0.38 4 25 Austin (8) 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).