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National Weather Service Springfield, MO
Fire Weather Risk -  
Fire Weather Risk Day 1
Risk Level
Definition
None
Open burning is usually safe with proper containers and precautions under low fire danger conditions. 
Residents should always check on local ordinances that prohibit open burning under any conditions.
Limited
Open burning is usually safe with the proper precautions.
Burning should be done in the early morning and late evening to avoid windier and drier conditions from midday through mid-afternoon. 
Residents should always check on local ordinances that prohibit open burning under any conditions.
Elevated
Any open burning is discouraged due to increased wind and lower humidity - except by experienced fire personnel
Increasing winds and lower humidity contribute to drying fuels. Fires escape control more easily and containment is difficult for inexperienced fire personnel.
Approaching Red Flag conditions.
Significant
Open burning should not be attempted.
High winds and extended dry periods lead to extreme burning conditions. Open fires can quickly escape and are very difficult to control, even for experienced fire fighters. 
Conditions exceed minimum criteria for a Red Flag Warning in most cases.
Extreme
Very strong winds, well in excess of Red Flag Criteria combined with moderate to low humidity.
Fires will spread very quickly with spot fires common. Fire control is extremely difficult due to very strong winds.
***These definitions are geared towards the general public and general emergency management and should not be confused with the standard National Fire Danger Rating System (NFDRS) adjectives used by wildland fire personnel.
The fire weather category for the Enhanced Hazardous Weather Outlook is based primarily on predicted wind, humidity and temperature, and does not account for fuel moisture from recent precipitation, snow cover and recently melted snow.  Appropriate adjustments to the fire environment must be made.
Fire weather hazard categories will normally be more restricted, generally in the "none" or "limited" categories from May 1st to September 30th due to normally predominant green and moist live vegetation.  This will be subject to change during unusual severe Spring and/or Summer drought.