yoderjac
5 year old buck +
No wind days are bad. Light and variable winds have caused me more angst than a 20 mph wind. If the wind dies fire is going to follow the fuel.
Also avoid burning during the time for peak intensity. 1300 till 1700 is peak time. Fuel is preheated, sun angle is at its best, temp is up and humidity is down. Fire usually lays down at night unless you are in one of the thermal belts like that Black Hills of SD. Our lookout (which I was alot) would take weather then calculate probability of ignition using temp, humidity, elevation off a chart.
I've talked with some very experienced burners. I think a lot of their confidence comes from the fact that they understand the wind and humidity factors and simply won't burn on days when conditions aren't right. They have talked about a lot of subtleties. They talk about wanting more but very predictable wind for growing season burns. They seem to be able to take a look at an area and assess the fuel load and given the humidity and when it last rained, understand how fire will carry. They know the different types of fires and how far to do the strips on that kind of fire to keep the temperature where they want it. Even then, there is an art to it. The last time we burned about 100 acres of thinned pines, the fire got a little too hot in places. I think this translates into the strips being a bit too wide. The forester estimated we had a 5%-10% pine loss in some areas.
I hope to get some experience with different season burns this year an next. We divided our bedding area clear-cuts into two sections with a firebreak. Our plan is to do a dormant season burn on half of it next month. Then, either early this fall or maybe next, try a growing season burn on the other half. The "when" will be decided based on how fast the first burn bounces back. It will be interesting to watch the plant community differences during the recoveries. The idea here is to keep at least half of the bedding area in good cover while the other half recovers.
Thanks,
Jack