September 9, 2020 - The U.S. Forest Service reports smoke and air quality outlook for the San Joaquin-Yosemite areas, due to the Creek Fire.

Fire: Yesterday’s smoke inversion moderated fire behavior (~ 1/2 the fire growth and smoke compared to the day before). Today moderate fire activity under terrain-driven winds is again likely in areas under the persistent smoke inversion, but red flag conditions persist in areas above that inversion under continued north winds aloft.

Smoke: Yesterday evening east winds finally arrived in the forecast area, clearing eastern sites to moderate for this morning. On the west side of the Sierra Crest, a strong smoke inversion formed and continues to trap smoke in the Unhealthy/Very Unhealthy range this morning. Today, the inversion is unlikely to break, so smoke is likely to accumulate to unhealthy or worse concentrations as large-scale emissions continue. Smoke from the North Complex, August complex, Slink Fire, and Blue Jay fires may contribute.

Notes: Forecasts reflect particulate matter from smoke only – not ozone or dust. Poor visibility, potentially less than 1/4 mile is likely under ~5000 foot elevation