California air quality

Jacumba Hot Springs, California Air Quality

San Diego County32.618, -116.190

The nearest monitor to Jacumba Hot Springs, at La Posta Band of Indians, 13 miles away, measured an index of 54 at Fri, 1:00 AM PDT, which is Moderate for ground-level ozone. Imperial County Air Pollution Control District forecasts Moderate for Imperial Valley today and Moderate tomorrow.

Measured now
54 · Moderate
Today
61 · Moderate
Tomorrow
51 · Moderate
Pollutant
Ozone

Fine particles on the map

Forecast fine particulate matter from NOAA’s National Air Quality Forecast Capability over Jacumba Hot Springs, California. Open it for the live map, where it pans and zooms.

Forecast fine particulate matter from NOAA’s National Air Quality Forecast Capability over Jacumba Hot Springs, California Open the live map with the particulate forecast

Map layer from NOAA National Air Quality Forecast Capability. Boundaries from the Iowa Environmental Mesonet.

Alerts in force

An Air Quality Alert is issued by the National Weather Service on behalf of a state or local agency when pollution is expected to reach a level that harms health. An Air Stagnation Advisory means the air will not move enough to clear what is already in it.

None are in force near Jacumba Hot Springs right now. All California warnings.

Now

Moderate

Nearest monitor
La Posta Band of Indians, 13 miles away (site 840060739991)
Index measured
54 · Moderate
Measured at
Fri, 1:00 AM PDT
Reporting area
Imperial Valley, CA, 38 miles away
Reported by
Imperial County Air Pollution Control District
Area index
44 · Good

Measured, not modeled. AirNow observations are preliminary until the operating agency certifies them, which happens months later.

Today and tomorrow

Imperial County Air Pollution Control District's own forecast for Imperial Valley, written by a forecaster rather than read off a model.

DayCategoryIndexPollutant
TodayModerate61Ozone
TomorrowModerate51Ozone
Sunday, October 4Moderate54Ozone
Monday, October 5Moderate61Ozone
Tuesday, October 6Moderate67Ozone

The forecaster’s discussion

Written by Imperial County Air Pollution Control District for Imperial Valley and filed with AirNow.

Today, upper-level high pressure over the region will inhibit mixing and generate sunny skies with temperatures in the upper-90s, enhancing ozone formation. Furthermore, calm to light and variable winds will allow ozone precursors and other pollutants to accumulate in the Imperial Valley. Thus, AQI levels will increase to high-Moderate. Tomorrow, sunny and warm conditions will continue to support ozone production. However, surface high pressure building to the east will produce moderate and gusty easterly winds across the Imperial Valley, effectively dispersing pollutants. These conditions will lead to low-Moderate AQI levels.

Hour by hour

NOAA’s National Air Quality Forecast Capability, bias-corrected against monitors, for this town’s own coordinate. The worst hour ahead is an index of 49, Good, around Fri, 5:00 PM PDT, from the run issued Thu, 8:00 PM PDT. This is a model, not a measurement.

HourIndexCategoryPM2.5Ozone
Fri, 2:00 AM PDT44Good347.3
Fri, 3:00 AM PDT44Good2.647.1
Fri, 4:00 AM PDT44Good3.847.3
Fri, 5:00 AM PDT44Good4.647.2
Fri, 6:00 AM PDT44Good6.447.2
Fri, 7:00 AM PDT44Good6.647.3
Fri, 8:00 AM PDT44Good7.447.1
Fri, 9:00 AM PDT44Good9.447.5
Fri, 10:00 AM PDT44Good6.847.9
Fri, 11:00 AM PDT44Good5.148.3
Fri, 12:00 PM PDT44Good3.948.6
Fri, 1:00 PM PDT45Good449.3
Fri, 2:00 PM PDT45Good4.149.6
Fri, 3:00 PM PDT46Good550.5
Fri, 4:00 PM PDT48Good5.252.1
Fri, 5:00 PM PDT49Good5.453.1
Fri, 6:00 PM PDT49Good3.453.2
Fri, 7:00 PM PDT48Good1.952.4
Fri, 8:00 PM PDT46Good2.450.8
Fri, 9:00 PM PDT44Good348.9
Fri, 10:00 PM PDT43Good3.746.8
Fri, 11:00 PM PDT40Good3.343.6
Sat, 12:00 AM PDT36Good3.339.8
Sat, 1:00 AM PDT32Good3.735.8
Sat, 2:00 AM PDT30Good3.832.8
Sat, 3:00 AM PDT28Good3.830.9
Sat, 4:00 AM PDT27Good4.130
Sat, 5:00 AM PDT27Good4.429.1
Sat, 6:00 AM PDT26Good4.728.7
Sat, 7:00 AM PDT26Good4.528.7
Sat, 8:00 AM PDT26Good4.328.5
Sat, 9:00 AM PDT27Good4.929.1
Sat, 10:00 AM PDT27Good3.829.9
Sat, 11:00 AM PDT29Good331.2
Sat, 12:00 PM PDT30Good2.932.8
Sat, 1:00 PM PDT31Good3.134.8
Sat, 2:00 PM PDT33Good2.436.3
Sat, 3:00 PM PDT35Good2.538.1
Sat, 4:00 PM PDT37Good2.840.1
Sat, 5:00 PM PDT38Good3.541.3
Sat, 6:00 PM PDT38Good2.741.6
Sat, 7:00 PM PDT38Good1.541
Sat, 8:00 PM PDT36Good239.3
Sat, 9:00 PM PDT34Good2.237.4
Sat, 10:00 PM PDT32Good3.135.7
Sat, 11:00 PM PDT31Good333.9
Sun, 12:00 AM PDT30Good2.932.6
Sun, 1:00 AM PDT29Good3.131.4
Sun, 2:00 AM PDT28Good3.130.9
Sun, 3:00 AM PDT28Good3.530.5
Sun, 4:00 AM PDT28Good3.630.8
Sun, 5:00 AM PDT29Good3.931.2

Fine particles in micrograms per cubic meter, ozone in parts per billion as an 8-hour average. The index for each hour is EPA’s: the ozone figure is already the 8-hour average the ozone index is defined on, and the particle figure is run through EPA’s NowCast, which is how an hourly PM2.5 concentration becomes an index.

Smoke

NOAA’s analysts have not drawn smoke over Jacumba Hot Springs in satellite imagery today.

NOAA’s model forecasts near-surface smoke peaking at 0.2 µg/m³ around Fri, 2:00 AM PDT.

Smoke on the radar over Jacumba Hot Springs

What this means

Moderate

Air quality is acceptable. There may be a risk for some people, particularly those who are unusually sensitive to air pollution.

Who is affected
People who are unusually sensitive to ozone or fine particles.
What to do
If you are unusually sensitive, consider making long or intense outdoor activity shorter or easier.
Index range
51 to 100

Category descriptions are the Environmental Protection Agency’s own.

What these numbers are. An index beside a monitor’s name is a measurement, published hourly by AirNow and preliminary until the operating agency certifies it. A category for today or tomorrow is a state or local agency forecaster’s own forecast for a reporting area. An hourly index is NOAA’s air quality model on a five-kilometer grid, not a reading from any instrument. Where a town has no monitor within reach, only the model figures appear, and the page says so.

Nearby

The nearest towns with a page of their own, closest first.

Weather forecast for Jacumba Hot SpringsWarnings in San Diego CountyLive radar over Jacumba Hot SpringsCalifornia air quality

Sources

Observations and daily forecasts from AirNow, the US Environmental Protection Agency’s program with NOAA, the National Park Service, NASA, tribal, state and local agencies. Hourly forecasts from NOAA’s National Air Quality Forecast Capability. Smoke analysis from NOAA’s Hazard Mapping System. Alerts from the National Weather Service. Index categories and breakpoints are EPA’s, as revised in 2024.