Weather

Question 0

A trough is an extension of a _____

Answer 0

Low-pressure area

Question 1

A ridge is an extension of a _____

Answer 1

High-pressure area

Question 2

Good weather is associated with _____ pressure areas and _____.

Answer 2

High

Ridges

Question 3

Poor weather, found in fronts and squall lines are associated with _____ pressure areas and _____.

Answer 3

Low

Troughs

Question 6

At an airfield w/ a high density altitude (hotter than normal) the DA would be _____ than the published field elevation & pressure altitude.

Answer 6

higher

Question 7

In hot weather the altimeter reads too low as aircraft fly _____ than normal

Answer 7

higher

Question 8

What direction do gradient winds travel parallel to isobars around a “H” high pressure system?

Answer 8

CW (clockwise)

Question 11

Density Altitude (DA) is a reference to or index of _____ rather than height.

Answer 11

aircraft performance

Question 12

DA is pressure altitude corrected for nonstandard temperature deviations. As such on a hot day air molecules are further apart _____ the air density and _____ the density altitude.

Answer 12

decreasing

increasing

Question 13

-SS

Answer 13

Light Sandstorm

Question 14

DS

Answer 14

Dust Storm

Question 15

+VCSHRA

Answer 15

Heavy rain showers in the vicinity

Question 16

BC

Answer 16

Patches

Question 17

BL

Answer 17

Blowing

Question 18

DR

Answer 18

Low drifting

Question 19

FZ

Answer 19

Freezing

Question 20

SQ

Answer 20

Squalls

Question 21

PRFG

Answer 21

Partial fog

Question 22

BLPY

Answer 22

Blowing spray

Question 23

FG

Answer 23

Fog

Question 24

PR

Answer 24

Partial

Question 25

IC

Answer 25

Ice crystals

Question 26

UP

Answer 26

Unknown precipitation

Question 27

DU

Answer 27

Widespread dust

Question 28

-

Answer 28

Light

Question 29

+

Answer 29

Heavy

Question 30

MI

Answer 30

Shallow

Question 31

SH

Answer 31

Shower(s)

Question 32

TS

Answer 32

Thunderstorm

Question 33

FC

Answer 33

Funnel cloud (tornado, or water spout)

Question 34

PO

Answer 34

Well-developed dust/sand whirls

Question 35

FU

Answer 35

Smoke

Question 36

HZ

Answer 36

Haze

Question 37

PY

Answer 37

Spray

Question 38

SA

Answer 38

Sand

Question 39

SG

Answer 39

Snow Grains

Question 40

PL

Answer 40

Ice Pellets

Question 41

SN

Answer 41

Snow

Question 42

GR

Answer 42

Hail

Question 43

GS

Answer 43

Small hail

Question 44

FZDZ

Answer 44

Freezing drizzle

Question 45

TSRAGS

Answer 45

Thunderstorm, rain, small hail

Question 46

SKC

Answer 46

Sky clear

Question 47

FEW

Answer 47

Few: 0-2/8’s sky coverage

Question 48

SCT

Answer 48

Scattered: 3-4/8’s sky coverage

Question 49

BKN

Answer 49

Broken: 5-7/8’s sky coverage

Question 50

OVC

Answer 50

Overcast: 8/8’s sky coverage

Question 51

NSW

Answer 51

No significant weather

Question 52

Ideal conditions/factors for fog

Answer 52

Small temp/dew point spread (5* deg. C or less)
Light surface wind
Cooling land surfaces, warmer air above (air is cooled from below)
Abundant condensation nuclei