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OWL T TMF H HMC I
OWLs Think That Most Fronts Have High Moisture Content, Idiots
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Sea Level Pressure
SLP = SP + F.E.
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Pressure Changes: In-flight
S: Situation
E: Error
T: True ALT(MSL)
MSL +/- ALT Error
A: AGL (Absolute)
MSL +/- Field Elevation = IALT
I: Indicated
Field Elevation +/- Error
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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
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DESCRIBE the requirements associated with thunderstorms
- M - Moisture
- U - Unstable Air
- L - Lifting Action
- B - Building through freezing layer
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DESCRIBE the hazards associated with thunderstorms
- H - Hail
- I - Icing
- M - Microburst
- E - Extreme Turbulence
- L - Lightning
- T - Tornados
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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
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DESCRIBE the types of precipitation
- Drizzle: freezing or liquid
- Rain: freezing or liquid
- Frozen: Hail, Ice Pellets, Snowmobile, or snow grains
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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
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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
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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
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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
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DESCRIBE the duration of turbulence
- O: Occasional
- I: Intermittent
- C: Continuous
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DESCRIBE the classifications of turbulence
- W: Wind Shear
- T: Thermal
- F: Frontal
- M: Mechanical
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DESCRIBE the conditions of turbulence
- L: Light
- M: Moderate
- S: Severe
- E: Extreme
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DESCRIBE the conditions of icing
- T: Trace
- L: Light
- M: Moderate
- S: Severe
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DESCRIBE the identifiers of a front
- T: Temperature Change
- D: Dew Point Spread
- W: Wind
- P: Pressure Change
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