What 3 weather factors are most important to wildland firefighters?
Weather conditions such as wind, temperature, and humidity also contribute to fire behavior. Wind is one of the most important factors because it can bring a fresh supply of oxygen to the fire and push the fire toward a new fuel source.
What are the weather elements the most important from the wildland fire standpoint?
The four critical weather elements that produce extreme fire behavior are low relative humidity, strong surface wind, unstable air, and drought.
What source or sources can Firefighters receive fire weather products and weather observations?
When computer resources are available, the Internet is the main source for gathering or requesting fire weather information including: Fire weather planning forecasts.
How is fire forecasting used by the Forest Service?
A number of innovative products and tools have been created to help fire managers assess fire potential and high risk areas. … Fuels and fire danger – Wildland Fire Analysts provide predictions and condition reports on fuels, fire danger, fire behavior, fire occurrence statistics, and asset needs.
What two components of the Earth’s atmosphere are most important to wildland firefighting?
The two most important weather, or weather related, elements affecting wildland fire behavior are wind and fuel moisture. Of the two, wind is the most variable and the least predictable. Winds, particularly near the earth’s surface, are strongly affected by the shape of the topography and by local heating and cooling.
What weather factor has the greatest impact on fire behavior?
Arguably, temperature, is the single most important weather factor affecting fire behavior. Some might say that relative humidity is most important but we will learn that temperature drives relative humidity. Fuel temperatures also affect a fire s rate of spread.
What is the most critical weather ingredient for wildfires?
The MOST critical weather ingredient for wildfires! → air is saturated!! Tough to get a fire when it’s raining!
What products are offered by the National Weather Service?
The suite of NWS climate outlook products includes:
- 6-10 Day Outlook. Temperature. …
- 8-14 Day Outlook. Temperature. …
- Week 3-4 Outlooks. Temperature. …
- One Month Outlook. Temperature. …
- Three Month Outlook. Temperature. …
- U.S. Drought Information. Monthly Outlook. …
- U.S. Hazards Outlook. 8-14 Day. …
- Global Tropics Hazards Outlook. Weeks 1 and 2.
What type of weather occurs during wildfires?
Nick Nauslar: Well, the easy answer is: Any sort of weather that ignites and/or helps spread fire. Stronger winds; low, relative humidity; unstable atmospheric conditions; and thunderstorms all fall under the umbrella of fire weather. … Fires spread in hot, dry, and windy conditions.
How do you take fire weather?
Stand in a shaded, open area away from objects that might be struck during whirling. If in open country, use your body shade to shade the psychrometer. If possible, take weather observations over a fuelbed that is representative of the fuel that the fire is burning in. Stay away from heat sinks.