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PwsFWI: Difference between revisions
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→Interpretation of the output
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A lot has been said about the interaction between vegetation, weather and fire and I do not have the illusion to finish that discussion now.
'''This Fire Weather Index is about the risk of ignition and the ease of propagation.''' So I the colour/number output of the index says basically: high number (red and purple) : high risk, low number (green) : low risk.
<span style="color:white;background:green;">Green: </span> Wood is wet to very humid and at the end of the scale the evaporation of the water content in timber is beginning. The wood is difficult to ignite.
<span style="background:blue;color: white;">Blue: </span> The evaporation continues but no real dry conditions exist. The wood is still difficult to ignite but thin twigs might be used to assemble and start a fire. Propagation is not fast is any.
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