quiz-snow-weather-midterm-2020-3.pdf

2020-03-13, 1(32 PM Quiz: Snow Weather Midterm - 2020 Page 1 of 20 https://canvas.ubc.ca/courses/34984/quizzes/163144/take Snow Weather Midterm - 2020 Started: Mar 13 at 1:09pm Quiz Instructions 1 pts Question 1 temperature elevation windspeed. slope angle in degrees pressure A contour map with lines labelled in values with units of ⁰ C depicts lines of constant elevation 1 pts Question 2 The windbarb below depicts what wind speed and direction? Downloaded by hana kunihiro (hana.k.3452g@gmail.com) lOMoARcPSD|36610382 =

2020-03-13, 1(32 PM Quiz: Snow Weather Midterm - 2020 Page 2 of 20 https://canvas.ubc.ca/courses/34984/quizzes/163144/take northeast 70 km/h (35 kts) northeast 35 km/h (70 kts) southwest 35 km/h (70 kts) southwest 70 km/h (35kts) southeast 70 km/h (35 kts) 1 pts Question 3 Partly cloudy skies above Few clouds above Mostly cloudy skies above Clear skies above Overcast skies above If a model forecast indicates relative humidity values of 95% above the elevation at which you intend to ski, what cloud cover might you expect? Downloaded by hana kunihiro (hana.k.3452g@gmail.com) lOMoARcPSD|36610382

2020-03-13, 1(32 PM Quiz: Snow Weather Midterm - 2020 Page 3 of 20 https://canvas.ubc.ca/courses/34984/quizzes/163144/take 1 pts Question 4 A - high pressure ridge; B - low pressure centre A - low pressure centre; B - high pressure centre A - low pressure trough; B - high pressure ridge A - low pressure trough; B - high pressure centre A - high pressure centre; B - low pressure centre What are the labelled features on this mean sea level pressure map Downloaded by hana kunihiro (hana.k.3452g@gmail.com) lOMoARcPSD|36610382

2020-03-13, 1(32 PM Quiz: Snow Weather Midterm - 2020 Page 4 of 20 https://canvas.ubc.ca/courses/34984/quizzes/163144/take 1 pts Question 5 A - low pressure trough; B - high pressure centre A - high pressure ridge; B - low pressure centre A - high pressure centre; B - low pressure centre A - high pressure ridge; B - low pressure trough A. A - low pressure centre; B - high pressure centre What are the labelled features on this mean sea level pressure map? Downloaded by hana kunihiro (hana.k.3452g@gmail.com) lOMoARcPSD|36610382

2020-03-13, 1(32 PM Quiz: Snow Weather Midterm - 2020 Page 5 of 20 https://canvas.ubc.ca/courses/34984/quizzes/163144/take 1 pts Question 6 cold; neither cold; the warm warm; the cold warm; neither cold; the cold Fill in the blanks by selecting one BEST answer. A ____ front is a front in which _____ airmass is advancing. 1 pts Question 7 Winds are typically stronger near the cold front. Snow and/or blowing snow limit visibility near the cold front. Precipitation starts as snow then transitions to rain behind the cold front. Temperature turns colder after the cold front passes. Clouds and fog near the cold front can reduce visibility. Which of the following weather factors that pose a risk to skiers and snowboarders near a cold front is NOT TRUE? 1 pts Question 8 Downloaded by hana kunihiro (hana.k.3452g@gmail.com) lOMoARcPSD|36610382

2020-03-13, 1(32 PM Quiz: Snow Weather Midterm - 2020 Page 6 of 20 https://canvas.ubc.ca/courses/34984/quizzes/163144/take Enjoying low density powder under sunny skies In the lodge because you got frostbite riding the chairlift Experiencing heavy precipitation, with dry breaks in between (showery precipitation) Clothing wet, and you get separated from friends due to poor visibility Experiencing icy conditions when rain was followed by below freezing temperatures Which of these is the most likely situation that you may end up in as a result of hazardous weather associated with a warm front? 1 pts Question 9 Yes, the surface wind speeds are reasonably accurate over inland areas including mountain ridge-tops. No, ridge-top winds could be strong. Model forecasts tend to show winds decreasing too quickly away from the ocean. Yes, although the surface wind speed forecast may be slightly off, winds will not be strong. Yes, model forecast surface winds usually overestimate actual wind speeds. No, model wind forecasts are rarely accurate over land or ocean. A surface (10-m above ground) wind forecast map shows light wind speeds over Whistler, an inland location. Is this a trustworthy indication that ridge-top winds will not be strong, and why? 1 pts Question 10 Based on the maps (left: 85.0-kPa winds, with wind barb units defined as they have Downloaded by hana kunihiro (hana.k.3452g@gmail.com) lOMoARcPSD|36610382

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