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The following
burns are Restricted due to poor dispersion conditions and degraded air
quality:
A11: Almost
Round Cedar, More Otts Cedar
AS12A: Piebald and Patches
AS12b: Pick up sticks, Witherspoon, Time to Go, Upper West Side, Yew Bone
Conditional
approval: Peterson Gate – may implement half acres
Airshed charts and summary table can be found here and maps can be found here.
Today pattern changes as a weak disturbance tracks through ID into western MT pushing high pressure east. West to east drainages and lee slope areas will see a minor increase in wind to help dispersion. Southwest MT and southwest ID POOR to FAIR dispersion and also AS3B. Other areas minor improvements with generally still POOR dispersion but inversions depths will be shallower and possibly break briefly in the afternoon.
Expect similar conditions over MT on Friday but high pressure builds back over ID to reduce dispersion to POOR. Southwest MT and central and eastern MT POOR to FAIR dispersion with weaker inversions but inversions becoming stronger over western MT for POOR dispersion.
Saturday high pressure is dominate for widespread POOR dispersion but a better chance for improved dispersion expected on Sunday as southwest flow develops with warmer temperatures.
Dan Borsum NRCC meteorologist