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DayWedThuFriSatSunMonTue
FIRE_DANGER
FIREPOT_SUB
FIRESPREADRATE_SUB
Max T
Min RH
Max Wind

Other Images

RH change Hour+1 RH change Hour+2 RH change Hour+3 RH change Hour+4

Safety and Preparedness

Fire Danger

What to do before (Preparedness):

  • Mow or Maintain grass and weeds, especially near roads.
  • Be aware of your area's fire and burning codes and laws.

What to do during (Safety):

  • Follow State Burning Ban Laws.
  • Monitor any outdoor burning.
  • When threat level is elevated, Intentional open-burning should be done with care and with fire control equipment at the ready.
  • When threat level is significant or critical, Open-burning should be postponed. Fire officials should have staff and equipment ready for a very active grass fire day.

Threat levels and suggested actions:

Level
Index Value
Affects
Precautionary Actions
green light=no threat 00-35 In general, conditions do not favor rapid or sustained fire spread. Follow State Burning Ban Laws.
yellow light=limited threat 36-43 Some potential exists for fires to spread. Follow State Burning Ban Laws. Care should be taken to monitor any outdoor burning.
red light=elevated threat 44-63 Any fires that start could spread out of control. Follow State Burning Ban Laws. Fire officials should be ready to respond to the spread of accidental fires. Intentional open-burning should be done with care and with fire control equipment at the ready.
purple light=significant threat >63 Rapid and sustained fire spread is likely. Follow State Burning Ban Laws. Open-burning should be postponed if possible. Fire officials should have staff and equipment ready for a very active grass fire day.

 

black light=critical threat >80 Rapid and sustained fire spread is occuring or expected. Follow State Burning Ban Laws. Open-burning should be postponed. Fire officials should have staff and equipment ready for a very active grass fire day.

 


Legend and Definitions


Deteriorating fire weather conditions means that fires of any origin would have increasing potential to spread. Thus the spread index is used to asses the threat of fires burning out of control. This spread index uses a combination of temperature, humidity, wind, and fine fuel state to calculate a value.

The information seen in this graphic is most appropriately used for grass fire potential as the index is based on fuels that can dry within 1 hour (grasses). The fuel state is a seasonal input that is based on whether the grasses in the area are green, dormant and dry, or some state in between. A transition from dormant fuels to green fuels happens quickly in early April. A transition from green to mixed, and then from mixed to dormant happens from the late summer into the early fall.

Level
Spread Index
Forestry Impact Term
green light=no threatNil 
00 to 29
Low
yellow light=limited threatLimted
30 to 43
High
red light=elevated threatElevated
44 to 63
Very High
purple light=significant threatSignificant
64-80
Extreme
black light=critical threatCritical
>80
Critical

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