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Idaho Fire Incident Map

Monday, July 30, 2018

Grassy Ridge Fire Update for July 30th

Yesterday afternoon into early evening fire crews completed firing/burning operations and completion of containment lines in the northwest section of the fire. Fire crews continued to secure and patrol the lines until midnight. A contingent of engines remained the rest of the night to patrol the lines to ensure they were holding.
Along the rest of the fire, crews walked and “cold-trailed” many miles of containment line and the numerous active fingers of fire activity. Cold-Trailing is where fire fighters physically walk the containment lines and search for pockets of heat and put them out for a depth towards the interior of the fire to ensure that it is cold and black in depth to ensure that no errant sparks can be fanned to life by the wind and tossed across containment lines to start a new fire.
The weather picture for today and tomorrow can be summed up in three words, “hotter and drier”. Temperatures are forecast to be fix to six degrees warmer today with humidity down to 10%. This may result in a little stronger than normal afternoon winds out of the south at 10-12 mph. The impact on the light, flashy fuels may result in numerous flareups and the appearance of interior smoke columns as islands of unburnt fuels are consumed.
These “islands” are one of the priorities as efforts to secure and “cold-trail” fire containment lines continue. As the containment lines are ensured firefighters will be turning their efforts towards construction of containment lines and cold-trailing them around the multiple islands or pockets of unburnt fuels which are not only existing portions of the cattle allotments as well as habitat for Sage Grouse and winter forage/habitat for big game.
SAFETY: Drivers, please help in assuring that “Every firefighter goes home” by slowing down when driving by fire crews and engines. Especially on the A2 & Red Roads.
Air Quality: For information on wildfire smoke the Idaho Department of Environmental Quality has a fact sheet that can be found at:
Inciweb address Information: