Wind

Question 1

Wind

Answer 1

Horizontal movement of air from area of high pressure to area of low pressure

Question 2

Isobar

Answer 2

Curved lines drawn on a surface weather map that joins areas of MSL (measure in hectopascals (hPa)

Question 3

Lows

Answer 3

Cyclones/ depressions

Lower pressure on centre than areas on outside

In Northern hemisphere wind flows counter clockwise

Labeled with red L

Question 4

Highs

Answer 4

Anticyclones

Regions of high pressure
Pressure increase in centre

In northern hemisphere wind flows clockwise

Labeled with blue H

Question 5

Troughs

Answer 5

Pressure pattern formed by isobars on map where bulge occurs in the side of a low pressure

Brings clouds, showers, wind shift

Question 6

Ridges

Answer 6

Bulge in the side of a high pressure

Question 7

Jet stream

Answer 7

Fast flowing air currents in the atmosphere

Main jet streams are near tropopause, flowing west to east

Question 8

METAR

Answer 8

Routine weather report (issued every hour)

Question 9

SPECI

Answer 9

Special weather report
Issued when there’s significant deterioration/ improvement in airport weather conditions

Question 10

Stratiform cloud

Answer 10

Develop horizontally

Stable conditions, air is restricted and spread out

Question 11

Cumuliform cloud

Answer 11

Develop vertically
Resemble puffs/ towers, flat bottom rounded top