Saturday, July 20, 2019
meteorology :: essays research papers
Midterm 1.     METAR CYSX 161700Z 24015KT 3SM – SN OVC015 –4/-5 aq3006 RMK SC8 SLP221 In the weather report above, what is the: (include units) (6 marks) Wind     Prevailing Visibility     Current Weather     Clouds (base and type)     Temperature / Dew Point     Altimeter Setting     2.     Name two weather elements normally found in a Metar that will not be reported in a SPECI. (2 marks) 3. â€Å"SKC†in a TAF stands for ____________________________________________. 4.     Decode completely ‘1/2SM + RA BR VV020’. (3 marks) 5. TAF CYPR 061742Z 061806 26015G25KT P6SM SCT020 BKN060 FM1800Z 33015G25KT P6SM SCT012 BKN025 TEMPO 18045SM – SHRAOVC012 FM0400Z 33020G30KT 3SM – SHRA BR OVC005 BECMG 0305 P6SM NSW SCT005 OVC012 (a)     What is the period of this TAF? (2 marks) (b)     At 2000Z what is the forecast surface wind? (2 marks) (c)     What is the lowest ceiling forecast between 18 and 06Z? (d)     At 0500Z what weather conditions are being forecast at CYPR? (5 marks) Wind__________________________________________________________________ Ceiling_________________________________________________________________ Visibility_______________________________________________________________ Weather and/or obstruction to vision__________________________________________ _______________________________________________________________________ (e) At what time are winds forecast to begin to decrease? Explain your answer. (2 marks) 6.     FDCN03 CWAO 051530 FCST BASED ON 051200 DATA VALID 061200 FOR USE 06-17 3000     6000     9000     12000     18000 YVR 1838     2048+03     2146-03     2251-08     2264-19 YYF 9900     1912-01     2231-03     2248-07     2766-18 YXC     2307+00     2428-02     2537-07     2544-17 YZP2026     2127-05     2128-12     2131-19     2041-31 YZT 2215     2222-03     2231-08     2139-14     2060-25 YPU     2115-02     2139-06     2149-12     2064-23 YXS     1834-04     2240-05     2246-10     2056-22 YYD     1721-06     2133-09     2040-15     1953-27 (a)     What is the valid period for the forecast winds above? (b)     In the digital winds above, wind direction is forecast in degrees____________and wind speed in_____________. (2 marks) (c)     What is the forecast wind (direction and speed) and temperature at 12,000 feet over Puntzi Mountian (YPU)? (2 marks) (d)     What is the forecast wind direction and speed at 9,000 feet over Kelowna? (2 marks) (e)     Estimate the wind direction and speed and temperature over Penticton (YYF) at 15,000 feet. (3 marks) 7.     Decode completely the following digital wind for 34,000 feet – 619935. (4 marks) 8.     You are flying at 10,000 feet towards an airport with elevation of 2,127 feet. You ask the FSS operator for the current digit winds at 3, 6 and 9 thousand feet and are told that no wind is available for 3,000 feet. Why is no wind available? 9.     On a ‘Clouds and Weather’ panel of a graphic area forecast cloud layers will be described as to: (a)     amount and the base of the cloud (b)     amount and the top of the cloud (c)     amount and the bases and top of the cloud (d)     none of the above 10.     For an equivalent amount of cooling, more energy is released during condensation at ____________________temperatures. (a)     colder (b)     warmer (c)     they will be the same (d)     energy will be absorbed, not released 11.     The three principle properties of the atmosphere are: (a)     rain, snow, hail (b)     heat, cold, moisture (c)     expansion, compression, mobility (d)     pressure, temperature, wind 12.     Atmospheric processes which effect the weather are, for the most part, restricted to the: (a)     thermosphere (b)     mesosphere (c)     stratosphere (d)     troposphere 13.     The temperature in the lowest part of the stratosphere_______________with altitude. (a)     increases (b)     nearly constant (c)     decreases slowly (d)     decreases rapidly 14.     Why when using a graphic area forecast is it important to be aware of the elevation of the local topography?
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