Dust / Smoke

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)
2025-12 day-by-day
Date Event AOD Dust PM2.5 Worst city Kind
12-01 Hazy 0.23 0 8 Lubbock (2) actual
12-02 Clear 0.14 1 11 Lubbock (10) actual
12-03 Hazy 0.27 1 12 Lubbock (15) actual
12-04 Smoke / haze aloft 0.39 0 12 DFW (1) actual
12-05 Hazy 0.22 2 18 Midland (16) actual
12-06 Hazy 0.20 5 22 Midland (36) actual
12-07 Clear 0.16 4 16 Midland (33) actual
12-08 Clear 0.09 0 15 Lubbock (4) actual
12-09 Clear 0.07 3 15 Midland (54) actual
12-10 Clear 0.09 4 11 Midland (42) actual
12-11 Clear 0.07 2 11 Midland (26) actual
12-12 Clear 0.12 2 15 Midland (27) actual
12-13 Hazy 0.22 1 22 Midland (7) actual
12-14 Smoke / haze aloft 0.30 0 17 Brownsville (1) actual
12-15 Clear 0.18 0 14 Lubbock (2) actual
12-16 Hazy 0.26 0 13 Midland (2) actual
12-17 Hazy 0.20 0 11 Midland (3) actual
12-18 Clear 0.14 2 10 Midland (18) actual
12-19 Clear 0.07 1 10 Midland (20) actual
12-20 Clear 0.15 3 13 Midland (19) actual
12-21 Hazy 0.20 1 14 San Antonio (4) actual
12-22 Clear 0.19 1 16 Tyler (2) actual
12-23 Clear 0.18 0 11 Lubbock (4) actual
12-24 Hazy 0.20 0 12 Lubbock (3) actual
12-25 Clear 0.18 0 12 Lubbock (2) actual
12-26 Clear 0.12 1 11 Midland (7) actual
12-27 Clear 0.10 1 6 Lubbock (19) actual
12-28 Clear 0.15 3 10 Lubbock (19) actual
12-29 Clear 0.14 0 7 Abilene (0) actual
12-30 Clear 0.10 0 13 Lubbock (1) actual
12-31 Clear 0.09 1 17 Lubbock (5) 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).