WEATHER IMPACTS ON OPERATIONS

  FOR OFFICIAL USE ONLY  
OPERATION FAVORABLE
(No Degradation)
MARGINAL
(Some Degradation)
UNFAVORABLE
(Significant Degradation)
HELO CIG >= 1000 FT CIG 500 - 999 FT CIG < 500 FT
  VIS >= 4800 METERS VIS 0800 - 4799 METERS VIS < 0800 METERS
  WIND < 35 KTS WIND 35 - 44 KTS WIND >= 45 KTS
      LGT OR MDT OR SVR TSTM
      LGT OR MDT OR HVY FZ PRECIP
    MDT TURB SVR TURB
    LGT OR MDT ICING SVR ICING
UAS CIG >= 3000 FT   CIG < 3000 FT
  VIS >= 4800 METERS   VIS < 4800 METERS
  WIND < 25 KTS   WIND >= 25 KTS
    LGT OR MDT PRECIP HVY PRECIP
      LGT OR MDT OR SVR TSTM
      LGT OR MDT OR HVY FZ PRECIP
    LGT TURBC MDT OR SVR TURBC
      LGT OR MDT OR SVR ICING
PERSONNEL TEMP 33 - 84 F TEMP < 33 F TEMP <= -25 F
    TEMP >= 85 F TEMP >= 95 F
  LGT PRECIP MDT PRECIP  HVY PRECIP
      LGT OR MDT OR SVR TSTM
VEHICLES LGT PRECIP MDT PRECIP HEAVY PRECIP
    LGT FZ PRECIP MDT OR HVY FZ PRECIP
  TEMP 01 - 104 F TEMP < 1 F  
    TEMP > 104 F  
VIS SYSTEMS VIS >= 3200 METERS VIS 1000 - 3199 METERS VIS < 1000 METERS
  LGT PRECIP MDT PRECIP  HVY PRECIP
  TEMP < 100 F TEMP >= 100 F  
  REL HUMIDITY < 80% TEMP < -25 F  
    REL HUMIDITY >= 80%  
IR SENSORS VIS >= 3200 METERS VIS < 3200 METERS  
  LGT PRECIP MDT PRECIP  HVY PRECIP 
  TEMP 20 - 125 F   TEMP > 125 F
  REL HUMIDITY < 80%   TEMP < -25 F
      REL HUMIDITY >= 80%