Weather Theory Flashcards
Which are the turbulence categories?
Which is the validity period of the Significant Weather Chart?
Describe the following figure from the High Level Significant Weather Prognostic Chart:
Describe the following figure from the High Level Significant Weather Prognostic Chart:
Describe the following figure from the High Level Significant Weather Prognostic Chart:
Name at least 3 element contained in the Significant Weather Prognostic Chart:
- Thunderstorms and cumulonimbus clouds
- Moderate or severe turbulence
- Moderate or severe icing
- Jet streams
- Tropopause heights
- Tropical cyclones
- Severe squall lines
- Volcanic eruption sites
- Widespread sandstorm and dust storms
Describe the following figure from the Significant Weather Prognostic Chart:
Jet stream at FL 350 with winds of 130 knots, at FL360 winds of 110 knots, at FL 370 winds of 90 knots. Lowest tropopause at FL 270. Isolated embedded cumulonimbus at FL 320 with bases below FL100
Interpret the following SIGMET:
CTN DUE TO VOLCANIC ACT TUNGURAHUA
VOLCANO 2000 RADIUS 55NM CENTERED
COORD 0301.5S 07313.0W
F) 15000FT AMSL G) 35000FT AMSL
Caution due to volcanic activity at volcano Tungurahua with a radius of 55NM centered in coordenades 0301.5S 07313.0W. From 15.000 ft above mean sea level to FL 350 above mean sea level.
Precaución a actividad volcánica del volcán tungurahua número 2000 a 55 NM de radio desde el centro del volcán ubicado en 0301.5S 07313.0W con base de 15000 amsl y topes de 35000 Amsl.
What is the effective period of this TEMPO?
TEMPO 0116/0120 30020KT BKN025TCU
Tempo is effective between 16:00Z to 20:00Z of Day 1 .
Define cloud coverage for FEW, SCT, BKN, OVC.
Describe the term CAVOK
the contraction “CAVOK” (Ceiling and Visibility OK) may replace the visibility, weather, and sky condition groups if all of the following conditions are forecast: Visibility of 10 kilometer (6 statute miles) or more, no clouds below 1500 meters (5,000 feet) or below the highest minimum sector altitude (whichever is greater), no cumulonimbus, and no significant weather phenomena.
Describe the following part of a SIGMT:
SEV MTW / FRQT HVYGR
Severe mountain wave SEV MTW/ Frecuentes con granizo fuerte FRQT HVYGR
Which is the standard temperature at Sea Level (ISA)?
15 degrees celsius .
How many degrees does the temperature decreases for every 1000 ft?
Temperature decreases 2 degrees celsius every 1.000 ft
What would be ISA standard temperature at Bogota (SKBO 8400 ft)?
ISA standard temperature at Bogota is -1degrees celsius
What would be ISA Deviation if temperature at Bogota (SKBO 8400 ft) is 18C?
It will be +19.
Describe the following METAR
SCEL 011100 0000 KT 17L/350 VV0000 05/05 Q1010
Santiago de Chile, day 01 at 11:00Z.
Wind calm, RVR for rumway 17L 350mts, vertical visibility 0000, temperature 5 degrees dew point 5 degrees, altimeter setting 1010
Describe the following METAR
SCEL 011100 0000 KT 17L/200U OVC001 05/05 Q1010
Santiago de Chile, day 1 at 11:00Z. Wind calm, RVR for runway 17L 200mts increasing, overcast at 100ft, temperature 5 degrees dew point 5 degrees, altimeter setting 1010.
Describe the following METAR
SCEL 011100 0000 KT 17L/300D FZRA VV0000 01/M05 Q1020
Santiago de Chile, day 1 at 11:00Z. Wind calm, RVR for runway 17L 300mts and decreasing, freezing rain, vertical visibility zero, temperature 1 dregree, dew point minus 5 degrees, altimeter setting 1020.
Name at least 2 factors that would indicate that enroute turbulence might be present.
Jetstream y cumulonimbus.
What kind of clouds are associated to COLD FRONTS ?
- Cumulonimbus and cumulus congestus producing frequent showers
- Stratocumulus.
- Nimbostratus.
