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weather quiz 4 > weather quiz 4 > Flashcards

weather quiz 4 Flashcards

100

1
Q

Radar detects only _________; it does not detect

_____________ .

A

precipitation

cloud and fog

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2
Q

True / False: Cell movement indicates general movement of lines and areas

A

F

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3
Q 
Convective precipitation has the following radar characteristics:
a)
b)
c)
d)
A

a lines or cells on radar
b Strong reflectivity gradient
c Rapidly changing echo patterns
d Moderate to extreme precipitation

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4
Q 
Stratiform precipitation has the following radar characteristics:
a
b
c
d
A

a Widespread on radar
b weak reflectivity gradient
c light to moderate precipitation
d slowly changing when animating

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5
Q

Name 3 limitations of weather radar:

A

beam block
ground clutter
ghost or angle

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6
Q

The two types of satellites are

A

GOES and POES

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7
Q

The three types of satellite imagery are

A

visible , inferred and water vapor

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8
Q

Through interpretation of satellite imagery, an analyst can estimate

A

cloud heights

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9
Q

Visible imagery is only available during

A

day

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10
Q

Infrared imagery is based on

A

heat

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11
Q

SIGMETs provide notice of

A

potentially hazardous en route conditions

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12
Q

What are the 2 most common conditions that initiate a SIGMET?

A

turbulence

icing

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13
Q

Define “convection”:

A

vertical movement of air

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14
Q

What weather phenomenon is covered by Convective SIGMETs?

A

thunderstorms

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15
Q

When is a “Special Convective SIGMET” issued?

A

tornados
3/4in hail at surface
50 kn wind gust
rapidly changing conditions

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16
Q

How do AIRMETs relate to SIGMETs?

A

baby SIGMET

moderate

17
Q

AIRMET Sierra is issued for

A

IFR

mountain obscurations

18
Q

AIRMET Tango is issued for

A

turb

19
Q

AIRMET Zulu is issued for

A

icing

20
Q

LLWS is defined as

A

wind shear below 2000 feet AGL,other then convectivlely induced, exceeding 10 kt. per 100 ft.

21
Q

Cold fronts are normally what color on a surface analysis chart?

A

Blue

22
Q

Warm fronts are normally what color on a surface analysis chart? _

A

red

23
Q

Troughs are normally what color on a surface analysis chart?

A

orange

24
Q

The primary difference between PROG charts and the surface analysis chart is

A

PROG is forcast

Surface analysis is current

25
Q

The weather depiction chart gives a __________ of the observed weather conditions.

A

broad over view

26
Q

IFR is less than _______________ foot ceiling and/or _________ statue miles visibility

A

1000

3

27
Q

VFR is greater than _______________ foot ceiling and _________ statue miles visibility.

A

3000

5

28
Q

Define “MVFR”:

A

in between IFR and VFR

weather quiz 4 (1 decks)

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