Weather Acronym Review

  1. OWL T TMF H HMC I
    OWLs Think That Most Fronts Have High Moisture Content, Idiots
  2. Sea Level Pressure
    SLP = SP + F.E.
  3. Pressure Changes: In-flight
    S: Situation

          Image Upload 1

    E: Error

          chart?chf=bg,s,00000000&cht=tx&chl=(A%20-%20B)%20%5Ctimes%201000%20%3D%20ALT%20Error&chs=406x38

    T: True ALT(MSL)

         MSL +/- ALT Error

    A: AGL (Absolute)

          MSL +/- Field Elevation = IALT

    I: Indicated

          Field Elevation +/- Error
  4. DESCRIBE the recommended techniques for avoiding thunderstorm hazards
    • C - Circumnavigate, stay 20 mi out
    • O - fly OVER top, 1000ft per every 10kts
    • U - fly UNDER base layer, fly bottom 1/3 from surface 
    • T - fly THROUGH, lower 1/3 of storm, 4000-6000AGL
  5. DESCRIBE the requirements associated with thunderstorms
    • M - Moisture
    • U - Unstable Air
    • L - Lifting Action
    • B - Building through freezing layer
  6. DESCRIBE the hazards associated with thunderstorms
    • H  - Hail
    • I    - Icing
    • M  - Microburst
    • E   - Extreme Turbulence
    • L   - Lightning
    • T   - Tornados
  7. DESCRIBE the three characteristics of precipitation
    • Showers: Sudden beginning and ending. Abruptly changing intensity. Associated with cumuliform clouds
    • Continuous: Steady. NOT showery. Intensity changes gradually. Associated with stratiform clouds
    • Intermittent: Stops and starts at least one during the hour. Shower or steady. Associated with either cloud type
  8. DESCRIBE the types of precipitation
    • Drizzle: freezing or liquid
    • Rain: freezing or liquid
    • Frozen: Hail, Ice Pellets, Snowmobile, or snow grains
  9. DESCRIBE the four principal cloud groups
    • Low Clouds: Surface to 6500AGL
    • Middle Clouds: 6500AGL to 20000AGL
    • High Clouds: above 20000AGL
    • Special Clouds: Extensive vertical development
  10. DESCRIBE the four methods of lifting
    • F - Frontal: Cold fronts lift air preceding it
    • O - Orographic: Wind against a mountain side pushes the air up
    • C - Convergence: Forces air up in between air masses
    • T - Thermal: When cool air is over a warm surface, from solar heating
  11. DESCRIBE the flight conditions associated with atmosphere
    • F: Front
    • A: Air Mass
    • T: Turbulence
    • V: Visibility
    • I: Icing
    • P: Precipitation
    • W: Wings
    • C: Cloud Type
    • Image Upload 2
  12. DESCRIBE the factors that influence frontal weather
    • M: Moisture content
    • C: Contrast of Temp and Moisture
    • S: Speed
    • S: Slope 
    • S: Stability of lifted air
  13. DESCRIBE the duration of turbulence
    • O: Occasional
    • I: Intermittent
    • C: Continuous
  14. DESCRIBE the classifications of turbulence
    • W: Wind Shear
    • T: Thermal
    • F: Frontal
    • M: Mechanical
  15. DESCRIBE the conditions of turbulence
    • L: Light 
    • M: Moderate
    • S: Severe
    • E: Extreme
  16. DESCRIBE the conditions of icing
    • T: Trace
    • L: Light
    • M: Moderate
    • S: Severe
  17. DESCRIBE the identifiers of a front
    • T: Temperature Change
    • D: Dew Point Spread
    • W: Wind
    • P: Pressure Change
Author
keggeler
ID
347700
Card Set
Weather Acronym Review
Description
API Weather 2017 Edition
Updated