Weather Flashcards
RMK SLP 993 6
Sea level pressure 999.3 hectoplascals and last 3 hours rain indeterminate.
Squall
15 knots in average wind speed to a sustained speed of 20knots or more for 1 min
IFR around Lake Superior etc
Obscured skies and fog
Continuous solid line enclosing a hatched area
All stations inside are reporting IFR
West Virginia
Continuous showery precipitation over half the area
Flight from Oklahoma to Tennessee
Continuous showery precipitation over half the area moderate turbulence freezing temperatures ABOVE 10,000
Arrow A on the radar summary chart
Heavy to very heavy precept echo tops to 30,000 feet thunderstorms and rain showers
Arrow C on the radar summary chart
Moving northeast at 20 kn and heavy very heavy echoes up to 29,000 feet
Arrow B on the radar summary chart
Week to moderate echoes rain showers increasing in intensity
300 milibar Height over Canada
9120 Meters MSL
Path of jet stream
Alaska to Canada to Montana to North Dakota to Great Lakes
Weather system approaching California
LOW pressure
Weather system approaching California
Dry
500 milibars
Flight level 180
300 milibars
Flight level 300
200 milibars
Flight level 390
FISDL
17,500 feet MSL down to 5000 feet AGL (Remember MSL/AGL)
FISDL
METAR, SIGMET, PIREP, AIRMET
MSPA
Severe thunderstorm
58 mph wind and or 1-inch size hail
Arrow D on the radar summary chart
Intense to extreme precipitation thunderstorms and rain showers
Turbulence:
Reporting term ‘Occasional’ means
Occasional - Less than 1/3 of the time
Turbulence:
Reporting term ‘Intermittent’ means
Intermittent 1/3 to 2/3
A Land and Hold Short Operations (LAHSO) clearance, that the pilot accepts:
- Does NOT preclude a rejected landing
Preclude: prevent from happening; make impossible.
Vertical wind shear can be determined by comparing winds on a vertically adjacent constant pressure charts. The vertical wind shear that is critical for probability of turbulence is:
6 knots or more per 1,000 feet.
666 turbulence is demonic
Vne speed
Remains the same at all altitudes
not talking about Vmo
What happens to indicated and true stalling airspeeds as altitude increases?
Remains the same, increases
Situational awareness is the
Accurate perception and understanding of all the factors and conditions within the FIVE fundamental risk elements
To remain current as a dispatcher, a person must, in addition to other requirements,
Within the preceding 12 calendar months, spent at least 5 hours observing flight deck operations in ONE of the types of airplanes in each group he/she is to dispatch
