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Today's Texas Air Quality Forecast

The latest forecast for air quality conditions in Texas' metropolitan areas.

October 18, 2017

Related Current Data Related Information
Air Quality Index (AQI) Report Ozone: The Facts
Map of Current PM2.5 Levels Texas Air Monitoring Data
Map of Current Ozone Levels EPA AIRNow Air Quality Forecasts  Exit the TCEQ
Current Satellite Images NOAA/EPA Ozone Model Forecasts  Exit the TCEQ
Real-Time Winds Aloft NRL Aerosol Model Forecasts  Exit the TCEQ

 

Forecast based on EPA's Air Quality Index (AQI)
AQI Scale
Forecast Region
(Click name for AIRNOW version)
Wed
10/18/2017
Thu
10/19/2017
Fri
10/20/2017
Sat
10/21/2017
Austin Ozone/PM2.5 Good Good Good
Beaumont-Port Arthur Ozone/PM2.5 Good Good Good
Brownsville-McAllen Good Good Good Good
Corpus Christi Ozone Good Good Good
Dallas-Fort Worth Ozone/PM2.5 Ozone Good Good
El Paso Good Good Good Good
Houston Ozone* Ozone Ozone Good
Laredo Good Good Good Good
Lubbock Good Good Good Good
Midland-Odessa Good Good Good Good
San Antonio Ozone/PM2.5 Good Good Good
Tyler-Longview Ozone Ozone Good Good
Victoria Ozone/PM2.5 Ozone Good Good
Waco-Killeen Ozone Ozone Good Good

An asterisk (*) indicates that an Ozone Action Day is or will be in effect for the indicated region.

Discussion

Wednesday 10/18/2017
An Ozone Action Day is in effect today for the Houston area. Winds may be light enough and incoming background levels high enough for ozone to reach "Unhealthy for Sensitive Groups" on the west and northwest side of the Houston area; "Moderate" or possibly higher on the north and northwest sides of the Austin, Dallas-Fort Worth, and San Antonio areas; and "Moderate" in parts of the Beaumont-Port Arthur, Corpus Christi, Tyler-Longview, Victoria, and Waco-Killeen areas, with highest concentrations in the afternoon and early evening.

Elevated urban fine particulate background levels associated with continental haze (with contributions from light amounts of patchy smoke from seasonal agricultural burning across the Southeastern United States, including Texas) combined with sufficient local add-on could also be enough to raise the daily PM2.5 AQI to the lower end of the "Moderate" range in parts of the Austin, Beaumont-Port Arthur, Dallas-Fort Worth, Houston, San Antonio, and Victoria areas as well.

Elsewhere in the state, moderate winds and/or lower incoming background levels should help to keep air quality in the "Good" range.

Thursday 10/19/2017
Winds may be light enough and incoming background levels high enough for ozone to reach "Moderate" or possibly higher on the north and northwest side of the Dallas-Fort Worth area and on the west and northwest side of the Houston area; and "Moderate" in parts of the Tyler-Longview, Victoria, and Waco-Killeen areas, with highest concentrations in the afternoon and early evening.

Elsewhere in the state, moderate winds, increasing cloud cover, and/or lower incoming background levels should help to keep air quality in the "Good" range.

Friday 10/20/2017 Outlook
If there is enough afternoon sunshine, winds may be light enough and incoming background levels high enough for ozone to reach "Moderate" in parts of the Houston area, with highest concentrations in the afternoon and early evening.

Elsewhere in the state, moderate winds and/or lower incoming background levels should help to keep air quality in the "Good" range.

Saturday 10/21/2017 Outlook
Moderate winds, cloud cover with precipitation, and low incoming background levels should help to keep air quality in the "Good" range statewide.

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This forecast was last updated at 9:40 am on Wednesday, October 18th, and is updated daily on normal TCEQ work days and may also be updated on weekends or holidays when air pollution levels are high. Regardless of our forecast, we always recommend that each individual determine what level of activity they should conduct based on the actual local conditions. See the "Related Current Data" links above to monitor the latest actual conditions.