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.
Today + 5-day forecast
(Weighted ERCOT)
TODAY
·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
09-25
·fcst
Clear
AOD —
· dust —
int 0/3
Worst dust city today
Lubbock
Dust 2 µg/m³
· AOD 0.15
· Clear
2026-09-20 (forecast)
Worst US AQI city today
Houston
US AQI 72
· dust 0
2026-09-20 (forecast)
2025-09 day-by-day
| Date |
Event |
AOD |
Dust |
PM2.5 |
Worst city |
Kind |
|
09-01
|
Smoke (Canadian wildfire typical Jul-Sep)
|
0.34
|
2
|
16
|
Brownsville
(8)
|
actual
|
|
09-02
|
Smoke (Canadian wildfire typical Jul-Sep)
|
0.32
|
1
|
18
|
Brownsville
(5)
|
actual
|
|
09-03
|
Hazy
|
0.28
|
0
|
16
|
Brownsville
(1)
|
actual
|
|
09-04
|
Clear
|
0.19
|
0
|
14
|
Austin
(1)
|
actual
|
|
09-05
|
Smoke (Canadian wildfire typical Jul-Sep)
|
0.30
|
1
|
16
|
Lubbock
(4)
|
actual
|
|
09-06
|
Smoke (Canadian wildfire typical Jul-Sep)
|
0.50
|
1
|
20
|
Brownsville
(3)
|
actual
|
|
09-07
|
Smoke (Canadian wildfire typical Jul-Sep)
|
0.42
|
1
|
14
|
Brownsville
(2)
|
actual
|
|
09-08
|
Hazy
|
0.24
|
0
|
14
|
Abilene
(1)
|
actual
|
|
09-09
|
Clear
|
0.17
|
0
|
14
|
Austin
(1)
|
actual
|
|
09-10
|
Clear
|
0.15
|
0
|
17
|
Lubbock
(1)
|
actual
|
|
09-11
|
Clear
|
0.19
|
0
|
12
|
Midland
(2)
|
actual
|
|
09-12
|
Hazy
|
0.23
|
1
|
15
|
DFW
(3)
|
actual
|
|
09-13
|
Hazy
|
0.28
|
2
|
17
|
Austin
(3)
|
actual
|
|
09-14
|
Smoke (Canadian wildfire typical Jul-Sep)
|
0.33
|
1
|
19
|
Tyler
(3)
|
actual
|
|
09-15
|
Smoke (Canadian wildfire typical Jul-Sep)
|
0.33
|
1
|
20
|
Tyler
(3)
|
actual
|
|
09-16
|
Hazy
|
0.29
|
1
|
18
|
DFW
(2)
|
actual
|
|
09-17
|
Hazy
|
0.30
|
1
|
18
|
DFW
(2)
|
actual
|
|
09-18
|
Smoke (Canadian wildfire typical Jul-Sep)
|
0.36
|
1
|
18
|
Tyler
(3)
|
actual
|
|
09-19
|
Smoke (Canadian wildfire typical Jul-Sep)
|
0.30
|
1
|
16
|
DFW
(2)
|
actual
|
|
09-20
|
Clear
|
0.20
|
1
|
15
|
Abilene
(1)
|
actual
|
|
09-21
|
Clear
|
0.18
|
0
|
8
|
Lubbock
(2)
|
actual
|
|
09-22
|
Clear
|
0.15
|
0
|
8
|
Midland
(2)
|
actual
|
|
09-23
|
Clear
|
0.17
|
0
|
8
|
Abilene
(1)
|
actual
|
|
09-24
|
Hazy
|
0.24
|
0
|
11
|
Lubbock
(2)
|
actual
|
|
09-25
|
Hazy
|
0.25
|
2
|
16
|
Lubbock
(4)
|
actual
|
|
09-26
|
Clear
|
0.17
|
1
|
15
|
Austin
(2)
|
actual
|
|
09-27
|
Clear
|
0.17
|
1
|
16
|
Austin
(2)
|
actual
|
|
09-28
|
Clear
|
0.16
|
1
|
16
|
Austin
(1)
|
actual
|
|
09-29
|
Hazy
|
0.21
|
0
|
14
|
Abilene
(0)
|
actual
|
|
09-30
|
Hazy
|
0.21
|
0
|
14
|
Abilene
(0)
|
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).