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The following are restricted due to poor dispersion conditions:
AS11: More Otts Cedar, Never summer, Ranch Road Brushing, Honey Hole 6, Reserve Creek
AS12A: Piebald and Patches
AS12B: Spring Break, St. Joe Face, Upper West Side, Red Ear Merry, Camp 14 Throne, Bertha Turn, Cool Hand Lew
AS15: Grassy Flats
Conditional: Skunk Creek – reduce ignitions area to 200 acres or less
All other proposals approved.
Restricted: Green Basin West, East, South, and Middle, Young Dodge, STW HQ, Lupfer Loop, Stovepipe, Airstrip View, Erickson Select, Bug Creek, Spring Board, Rocky Line.
Conditional Approval: Tim Burton limit to 20 acres.
All other proposals approved.
Airshed charts and summary table can be found here and maps can be found here.
POOR dispersion is widely expected this week as a combination of high pressure and recent moisture supports fog and slows surface heating.
High pressure begins to move into the ID and western MT on Monday while a low pressure system develops over SD keeping unusually high moisture content air over MT east of the Continental Divide.
Precipitation should end over central MT during the day and over eastern MT overnight.
Despite the drying from the high pressure in the west, fog is expected to develop and possibly struggle to break Monday over north ID and parts of western MT.
High pressure becomes the main weather feature Tuesday and Wednesday which will bring stable air. Dispersion is going to be poor especially where wet ground keeps the fog in place and limits solar heating.
Pattern shifts a bit later in the week as a disturbance brings a weak front through Montana and Idaho. This may bring an increase in wind and a few showers but its a relatively weak feature and may not break all the inversions.
Dan Borsum NRCC meteorologist