Bush Fire smoke impact report 6/25/2020

There were approximately 2,500 acres of new growth observed on the Bush Fire yesterday, however, that new growth was restricted to un-burned interior fuel islands only with no new perimeter growth noted. Total size is estimated around 189,000 acres. Afternoon satellite captured three distinct smoke plumes, a less defined plume at the northern end of the Bush Fire and the other two more prominent plumes originating from the southern end. A majority of daytime smoke was carried by westerly winds and became visibly diffuse over the Rim Country area between Payson and Show Low by sunset. Based on available monitoring data, daytime and overnight smoke impacts were only minor or not detected.

For today and tomorrow, trapped early morning smoke in the Tonto Basin will lift and disperse north and eastward after inversion breakup by about 9 AM. Additionally, prevailing afternoon west to southwesterly winds will continue to carry any smoke plumes developing from burning of interior fuel islands towards the Rim Country communities by the afternoon and early evening hours. Settling of smoke overnight remains possible throughout the region.

Smoke impacts, in general, are expected to be light for a majority of the area downwind of the fire perimeter given a significant decrease in new smoke production in recent days.



Find the wildfire smoke forecast at:
https://www.azdeq.gov/WildfireForecast

Find the Arizona air quality monitor report at
https://www.azdeq.gov/aq/monitorreport




Bush Fire smoke impact report 6/24/2020

The Bush Fire grew by about 120 acres yesterday. The total acreage of the fire is now estimated at around 186,960 acres. Fire activity still remained limited to pockets of hotspots that continued to burn within the fire perimeter. On satellite, several smoke plumes were noted in the afternoon moving off to the east, becoming more diffuse the further they reached. At the ground, smoke was generally light.

Looking ahead for today and tomorrow, smoke from the fire is expected to follow a similar pattern: it should slowly disperse eastward over the Tonto Basin area and to the north into the Rim Country in the morning (depending on where the hotspots are), then move off to the east in the afternoon. Overnight, smoke is expected to settle into low-lying areas in/around the Tonto Basin area and Roosevelt Lake.

In general, smoke impacts are expected to be light across the region because of the significant decrease in fire activity. However, brief periods of light to moderate smoke may be possible for some areas. Moreover, light smoke may be possible in Fountain Hills in the evening or overnight hours. Any smoke that does fill into low lying areas in/around the fire overnight is forecast to lift out by 9 am Thursday.

Find the wildfire smoke forecast at:
https://www.azdeq.gov/WildfireForecast

Find the Arizona air quality monitor report at
https://www.azdeq.gov/aq/monitorreport