Bgs Facts

Question 1

Polar ice caps creates what type of air mass

Answer 1

Arctic

Question 2

What is different in the core of the TRS than the surroundings

Answer 2

Core is warmer than the surrounding air

Question 3

Eye of a hurricane

Answer 3

Lower than 63kts

Descending air, thus no clouds

Question 4

Where are cyclones formed

Answer 4

Bay of Bengal

Question 5

Wast side of an easterly wave are thunderstorms most likely to form

Answer 5

Easterly side

Question 6

Above and below an inversion, what is likely to happen to the wind

Answer 6

Change significantly in speed and direction

Question 7

Height of strongest mechanical turbulence

Answer 7

250ft

Question 8

When do tornadoes form

Answer 8

In N America, spring/summer

Question 9

What is a gust front

Answer 9

Cold air outflow from a ts

Question 10

When is rvr reported

Answer 10

When visibility decreases below 1500m

Question 11

Triangle symbol on wx charts

Answer 11

Hail

Question 12

What met messages are produced in ATIS

Answer 12

Met report and specials

Question 13

What happens to the speed of a polar front in winter

Answer 13

Increases

Question 14

When is a polar front jet speed the fastest

Answer 14

Between a ridge and a trough

Question 15

Can airframe icing form in clear air

Answer 15

Yes

Question 16

Pressure altitude

Answer 16

1013.25

Question 17

Saturation mixing ratio

Answer 17

Number of grams of water it contains per KG of air.

Increases exponentially with temp

Question 18

% of air in the lower troposphere that consists of WV

Answer 18

0-5%

Question 19

Mostly likely reasons for stratus to be dispersed

Answer 19

Insolation, resulting in the lifting of the condensation level

Question 20

Capillatus

Answer 20

Hairy top like an anvil

Question 21

Fractus

Answer 21

Broken in pieces

Question 22

Humilis

Answer 22

Small vertical extent

Question 23

Towering cumulus

Answer 23

Great vertical extent

Cauliflower

Question 24

BCFG

Answer 24

Patchy fog

Question 25

Amount of hurricanes in N America per year

Answer 25

6

Question 26

Tropical downpour can reduce vis to

Answer 26

Tens of meters

Question 27

What can low level windshear be associated with

Answer 27

Passage of a cold front

Question 28

Duration of a microburst

Answer 28

1-5mins

Question 29

Weather to be included in a special air report

Answer 29

Severe mountain wave 
Sever dust/sand storms 
Mod and severe icing 
EMBD,TS,
Volcanic ash clouds

Question 30

600hpa FL

Answer 30

FL140