Season: Spring    Zone: 602
Transport
Wind
Direction
Transport
Wind
Speed
 
Mixing
Height
 
Unit
Tonnage
 
Unit
Spacing
Distance
to
SSRA
 
 
  Additional Instructions
001-020>5>=50001500510  "Avoid ignitions north of Forest Grove/Hillsboro or Sheridan/Willamina in Zone 602."  
  4000-49991500810  "Avoid ignitions north of Forest Grove/Hillsboro or Sheridan/Willamina in Zone 602."  
  3000-399910001012  "Avoid ignitions north of Forest Grove/Hillsboro or Sheridan/Willamina in Zone 602."  
  0000-299910001515  "Avoid ignitions north of Forest Grove/Hillsboro or Sheridan/Willamina in Zone 602."  
 <=5>=5000500510     
  4000-4999500810     
  3000-39993001012     
  0000-29993001515     
021-160>5>=5000matrix       
  4000-4999matrix       
  3000-3999matrix       
  0000-2999matrix       
 <=5>=5000500510     
  4000-4999500810     
  3000-39993001012     
  0000-29993001515     
161-180>5>=5000750510  "North of T3N, use the standard guidance matrix."  
  4000-4999500810  "North of T3N, use the standard guidance matrix."  
  3000-39995001012  "North of T3N, use the standard guidance matrix."  
  0000-2999no burn    "North of T3N, use the standard guidance matrix."  
 <=5>=5000500510     
  4000-4999500810     
  3000-39993001012     
  0000-29993001515     
181-224>5>=5000750510  "North of T3N, use the standard guidance matrix."  
  4000-4999500810  "North of T3N, use the standard guidance matrix."  
  3000-39995001012  "North of T3N, use the standard guidance matrix."  
  0000-2999no burn    "North of T3N, use the standard guidance matrix."  
 <=5>=5000300510     
  4000-4999300810     
  3000-3999no burn       
  0000-2999no burn       
225-269>5>=5000500510  "North of T3N, use the standard guidance matrix. Avoid burning in or near corridors."  
  4000-4999300810  "North of T3N, use the standard guidance matrix. Avoid burning in or near corridors."  
  3000-39993001012  "North of T3N, use the standard guidance matrix. Avoid burning in or near corridors."  
  0000-2999no burn       
 <=5>=5000300510     
  4000-4999300810     
  3000-3999no burn       
  0000-2999no burn       
270-349>5>=5000500510  "Avoid burning in or near corridors."  
  4000-4999300810  "Avoid burning in or near corridors."  
  3000-39993001012  "Avoid burning in or near corridors."  
  0000-2999no burn       
 <=5>=5000300510     
  4000-4999300810     
  3000-3999no burn       
  0000-2999no burn       
350-360>5>=5000750510  "Avoid ignitions north of Forest Grove/Hillsboro or Sheridan/Willamina in Zone 602."  
  4000-4999750810  "Avoid ignitions north of Forest Grove/Hillsboro or Sheridan/Willamina in Zone 602."  
  3000-39995001012  "Avoid ignitions north of Forest Grove/Hillsboro or Sheridan/Willamina in Zone 602."  
  0000-29995001515  "Avoid ignitions north of Forest Grove/Hillsboro or Sheridan/Willamina in Zone 602."  
 <=5>=5000300510     
  4000-4999300810     
  3000-3999no burn       
  0000-2999no burn       

 STANDARD GUIDANCE MATRIX:
  • Greater than 5000 ft mixing height:   No burning within 5 miles of
    downwind SSRA. Maximum 100 tons per mile from downwind SSRA.
    Example: 500 ton maximum allowed if burned 5 miles from downwind SSRA.

  • 3000 - 5000 ft mixing height:   No burning within 10 miles of
    downwind SSRA. Maximum 75 tons per mile from downwind SSRA.
    Example: 750 ton maximum allowed if burned 10 miles from downwind SSRA.

  • Less than 3000 ft mixing height:   No burning within 15 miles of
    downwind SSRA. Maximum 50 tons per mile from downwind SSRA.
    Example: 750 ton maximum allowed if burned 15 miles from downwind SSRA.

  • All exceptions must be coordinated with the duty forecaster
    prior to ignition.