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 0.19
· dust 0
int 0/3
09-20
·fcst
Clear
AOD 0.19
· dust 0
int 0/3
09-21
·fcst
Clear
AOD 0.19
· dust 0
int 0/3
09-22
·fcst
Clear
AOD 0.17
· dust 0
int 0/3
09-23
·fcst
Clear
AOD 0.18
· dust 0
int 0/3
09-24
·fcst
Clear
AOD —
· dust —
int 0/3
Worst dust city today
Lubbock
Dust 1 µg/m³
· AOD 0.14
· Clear
2026-09-19 (forecast)
Worst US AQI city today
Houston
US AQI 88
· dust 0
2026-09-19 (forecast)
2026-07 day-by-day
| Date |
Event |
AOD |
Dust |
PM2.5 |
Worst city |
Kind |
|
07-01
|
Hazy
|
0.21
|
10
|
15
|
Corpus Christi
(26)
|
actual
|
|
07-02
|
Hazy
|
0.25
|
8
|
18
|
San Antonio
(13)
|
actual
|
|
07-03
|
Hazy
|
0.24
|
6
|
18
|
Houston
(9)
|
actual
|
|
07-04
|
Clear
|
0.19
|
3
|
11
|
DFW
(4)
|
actual
|
|
07-05
|
Hazy
|
0.26
|
0
|
11
|
Abilene
(2)
|
actual
|
|
07-06
|
Hazy
|
0.25
|
1
|
13
|
Brownsville
(5)
|
actual
|
|
07-07
|
Hazy
|
0.27
|
1
|
15
|
Brownsville
(6)
|
actual
|
|
07-08
|
Hazy
|
0.21
|
10
|
16
|
San Antonio
(33)
|
actual
|
|
07-09
|
Clear
|
0.19
|
14
|
14
|
McAllen
(50)
|
actual
|
|
07-10
|
Hazy
|
0.23
|
16
|
15
|
Houston
(23)
|
actual
|
|
07-11
|
Hazy
|
0.28
|
12
|
17
|
Corpus Christi
(27)
|
actual
|
|
07-12
|
Mixed (dust + haze)
|
0.30
|
11
|
16
|
Corpus Christi
(23)
|
actual
|
|
07-13
|
Mixed (dust + haze)
|
0.37
|
18
|
18
|
McAllen
(54)
|
actual
|
|
07-14
|
Saharan dust
|
0.35
|
21
|
22
|
Brownsville
(47)
|
actual
|
|
07-15
|
Saharan dust
|
0.40
|
28
|
24
|
Houston
(58)
|
actual
|
|
07-16
|
Saharan dust
|
0.40
|
30
|
24
|
Houston
(59)
|
actual
|
|
07-17
|
Saharan dust
|
0.34
|
27
|
17
|
DFW
(39)
|
actual
|
|
07-18
|
Saharan dust
|
0.34
|
40
|
20
|
San Antonio
(63)
|
actual
|
|
07-19
|
Saharan dust
|
0.33
|
33
|
23
|
San Antonio
(46)
|
actual
|
|
07-20
|
Saharan dust
|
0.25
|
27
|
25
|
DFW
(37)
|
actual
|
|
07-21
|
Clear
|
0.17
|
15
|
22
|
Houston
(24)
|
actual
|
|
07-22
|
Hazy
|
0.26
|
7
|
22
|
Brownsville
(11)
|
actual
|
|
07-23
|
Smoke (Canadian wildfire typical Jul-Sep)
|
0.34
|
4
|
20
|
Brownsville
(11)
|
actual
|
|
07-24
|
Saharan dust
|
0.33
|
24
|
22
|
Brownsville
(71)
|
actual
|
|
07-25
|
Saharan dust
|
0.31
|
39
|
26
|
Austin
(69)
|
actual
|
|
07-26
|
Clear
|
0.19
|
9
|
19
|
DFW
(23)
|
actual
|
|
07-27
|
Clear
|
0.14
|
5
|
9
|
Brownsville
(15)
|
actual
|
|
07-28
|
Clear
|
0.17
|
8
|
12
|
Brownsville
(22)
|
actual
|
|
07-29
|
Hazy
|
0.25
|
6
|
13
|
Tyler
(13)
|
actual
|
|
07-30
|
Hazy
|
0.28
|
5
|
13
|
Lubbock
(7)
|
actual
|
|
07-31
|
Hazy
|
0.23
|
2
|
10
|
Houston
(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).