- Joined
- Oct 29, 2005
- Messages
- 18,769
Trent Rock's recent thread got me to thinking back to my Forest Fire fighting days and what little I can still remember about what to do and not to do should you be in the forest when there is a fire. What little I have is for the North West, some rules work well in other regions, but California and the Southest both have fuel or terrain issues that change the game.
Like surviving a lot of scenarios, many of the solution's for evading forest fire seem quite obvious when you read them, but may be elusive had you not considered them beforehand.
Being above a fire, during the day, is bad juju. Fire burns up, you need to relocate. If the fire is moving fast you will not be able to run uphill faster then the fire will burn. This is especially true if you are in any terrain feature that will act as a heat and smoke chimney...for example avalanche chutes will funnel heat and fire up faster than a ridge crest.
Ideally you would move parallel to the fire, you can run faster than uphill and safer too.
Another option, if there is time, is to start a fire where you stand or look for fire spots that have jumped the main fire line, you want to move to the burned area. If the firestorm is racing towards you, the wind will be blowing towards you, so a fire started at your location will burn upwards/away from you. Get as far into the burnt area as possible. scratch out a pit for your face, more if you have time. Keep backpacks on...hopefully you are wearing natural clothing as the synthetics will melt. (BTW Nomex pants that Forest Service uses are some of the best outdoor pants you can hope to buy, they don't burn, they dry fast, and they don't rip)
If it is night, the fire usually calms down but you are still at risk. Oddly you have more risk if you are BELOW the fire at night. Heat rises from the valleys at night so cool mountain top air rushes down the mountains to take its place. So the winds normally blow downwhills at night (uphill during the day of course). In the right conditions, the fire can move very far at night.
If you have no where to run too, look for rock outcroppings or other places of low fuel. Riparian areas, streams, and even Aspen/Cottonwood trees grow in areas with a higher water content. You still might die, since if it is dry enough, or the wind is strong enough fire will burn right through these areas, but at least you aren't hugging a pine tree.
Seeing smoke. The general rule is the blacker the smoke, the hotter the fire, so dark black smoke means big trouble.
The greatest time of day for a fire flare up is just a few hours after the sun zenith through a few hours of cooling. So roughly 1-3pm.
Naturally strong winds can fan a fire any time of day or night...having a scanner that gets the weather updates is always handy to have.
That is all for now, add what you know, and flame away...
Like surviving a lot of scenarios, many of the solution's for evading forest fire seem quite obvious when you read them, but may be elusive had you not considered them beforehand.
Being above a fire, during the day, is bad juju. Fire burns up, you need to relocate. If the fire is moving fast you will not be able to run uphill faster then the fire will burn. This is especially true if you are in any terrain feature that will act as a heat and smoke chimney...for example avalanche chutes will funnel heat and fire up faster than a ridge crest.
Ideally you would move parallel to the fire, you can run faster than uphill and safer too.
Another option, if there is time, is to start a fire where you stand or look for fire spots that have jumped the main fire line, you want to move to the burned area. If the firestorm is racing towards you, the wind will be blowing towards you, so a fire started at your location will burn upwards/away from you. Get as far into the burnt area as possible. scratch out a pit for your face, more if you have time. Keep backpacks on...hopefully you are wearing natural clothing as the synthetics will melt. (BTW Nomex pants that Forest Service uses are some of the best outdoor pants you can hope to buy, they don't burn, they dry fast, and they don't rip)
If it is night, the fire usually calms down but you are still at risk. Oddly you have more risk if you are BELOW the fire at night. Heat rises from the valleys at night so cool mountain top air rushes down the mountains to take its place. So the winds normally blow downwhills at night (uphill during the day of course). In the right conditions, the fire can move very far at night.
If you have no where to run too, look for rock outcroppings or other places of low fuel. Riparian areas, streams, and even Aspen/Cottonwood trees grow in areas with a higher water content. You still might die, since if it is dry enough, or the wind is strong enough fire will burn right through these areas, but at least you aren't hugging a pine tree.
Seeing smoke. The general rule is the blacker the smoke, the hotter the fire, so dark black smoke means big trouble.
The greatest time of day for a fire flare up is just a few hours after the sun zenith through a few hours of cooling. So roughly 1-3pm.
Naturally strong winds can fan a fire any time of day or night...having a scanner that gets the weather updates is always handy to have.
That is all for now, add what you know, and flame away...