MN Weather

Question 1

Why is weather important to study? (4)

Answer 1

Distributions of biota
Seasonality
Growing season
Climate change

Question 2

MN Climate

Answer 2

Solar radiation

Humid continental

Question 3

Axis Tilt

Answer 3

Day length, amount of solar radiation

Question 4

Solar Radiation

Answer 4

Net radiation high in summer, missing in winter

Question 5

Humid Continental

Answer 5

Warm humid summer, dry cold winters

Question 6

MN Temperature

Answer 6

Wide range

Question 7

Where does air come from when hot?

Answer 7

SW

Question 8

Where does air come from when cold?

Answer 8

Arctic

Question 9

Polar Vortex

Answer 9

Low pressure in upper atmosphere near north pole

Question 10

Jet Stream

Answer 10

River of air bends around pressure systems

Question 11

Winter Misery Index

Answer 11

Data on temp, snow depth, and duration

Question 12

What moderates temp? (4)

Answer 12

Water
Topography
North-South Slopes
Albedo

Question 13

Where are moderate temps from water?

Answer 13

Lake Superior

Question 14

Cooling Influence Because Of…

Answer 14

Evaporation

Question 15

Albedo

Answer 15

Reflected sunlight

Question 16

_____% of solar radiation reflected by snow

Answer 16

75

Question 17

Growing Season

Answer 17

Frost free

Question 18

Avg Range Of MN Precipitation

Answer 18

20 inches in NW to 32 inches in SW

Question 19

Drought Frequency

Answer 19

1 every 8-9 years

Question 20

70% Of Precipitation Falls In…

Answer 20

May-Sept

Question 21

Snow Depth Range

Answer 21

60 inches on North Shore to 36 inches in SW

Question 22

Where is MN humidity from?

Answer 22

Moist air from the gulf

Question 23

What kind of air holds more moisture?

Answer 23

Warm

Question 24

Humidity

Answer 24

Amount of water vapor in the air

Question 25

What happens when air cools?

Answer 25

Water condenses

Question 26

Dewpoint

Answer 26

Temp at which water condenses and forms dew

Question 27

Where is evaporation highest?

Answer 27

SW MN

Question 28

P/E Ratio Meaning

Answer 28

Precipitation to Evaporation Ratio

Question 29

P/E Ratio Definition

Answer 29

How much water is available to plants and organisms

Question 30

Water Availability In NE MN

Answer 30

High

Question 31

Water Availability In Central MN

Answer 31

Moderate

Question 32

Water Availability in SW MN

Answer 32

Low

Question 33

What is the wind direction from May-Oct?

Answer 33

S or SW

Question 34

What is the wind direction from Nov-April?

Answer 34

NW

Question 35

What is the windiest month?

Answer 35

April

Question 36

What is the average wind speed?

Answer 36

9-11 mph

Question 37

Influence of movement of air masses is caused by what?

Answer 37

Location of jet stream

Question 38

High Pressure System

Answer 38

``` Cool Dry air Weather Light winds Clockwise rotation in Northern Hemisphere ```

Question 39

Low Pressure System

Answer 39

``` Warm Moist air Stormy weather Strong winds Counterclockwise rotation ```

Question 40

When are the skies mostly clear?

Answer 40

July/August

Question 41

When is it mostly cloudy?

Answer 41

November/ December

Question 42

High Altitude Clouds

Answer 42

Cirrus Cirrocumulus Cirrostratus

Question 43

Middle Altitude Clouds

Answer 43

Altocumulus | Altostratus

Question 44

Low Altitude Clouds

Answer 44

Cumulus | Stratus

Question 45

Cirrus Clouds

Answer 45

Wispy

Question 46

Cumulus Clouds

Answer 46

Fluffy

Question 47

Stratus Clouds

Answer 47

Blanket

Question 48

Nimbo- Clouds

Answer 48

Rain

Question 49

Cumulonimbus Clouds

Answer 49

Storm

Question 50

Why are there more tornados in the spring?

Answer 50

Differential temps | Increase of warm, Gulf moisture into the central part of the country

Question 51

Differential Temps

Answer 51

Creates instability

Question 52

Cause Of Tornado

Answer 52

Upper atmosphere is cold | Surface is warming up

Question 53

When was the earliest tornado in MN?

Answer 53

March 18, 1968

Question 54

When was the latest tornado in MN?

Answer 54

November 16, 1931

Question 55

What is the order of tornado frequency?

Answer 55

June July May August