July 31, 2014

Smoke over Northeast, Fires in West

The EPA AQI loop, below left, shows Moderate AQIs across most of the eastern third of the country, including the Northeast, Great Lakes, Mid-Atlantic, Southeast, Mississippi Valley, and parts of the Plains States, as well as parts of the Pacific Southwest, Pacific Northwest, and northern Rocky Mountains. There are also areas reaching Unhealthy for Sensitive Groups and Unhealthy in the Pacific Southwest and Pacific Northwest. The NRL NAAPS forecast, below right, shows sulfate across the eastern part of the country and smoke across the northeast quarter of the country and portions of the west, which may be responsible for the higher AQIs in these regions.

The GASP East AOD loop, below left, still shows a plume of elevated AODs drifting down from Canada, then being pulled east by circulation north of the Great Lakes. The HMS fire and smoke imagery, below right, confirms the presence of smoke over the Great Lakes and Mid-Atlantic regions. It additionally shows areas of smoke coming from wildfires in California and Washington.

The image below comes from a National Park Service web-cam in Yosemite National Park, and shows what appears to be smoke rising over a ridgeline.
Posted by Daniel Orozco at July 31, 2014 11:59 PM
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