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A107-Weather Reports
DA20 A107-Weather Reports
29
Aviation
Graduate
10/17/2013

Additional Aviation Flashcards

 


 

Cards

Term

What is meant by the term ‘dewpoint’?

Definition
the temperature to which air must be cooled to become saturated
Term

When the phrase “light and variable” is used in reference to a winds-aloft forecast, the coded group and wind-speed is

Definition
9900 and less than 5 knots
Term

What is the valid period for the TAF for KMEM?

TAF

KMEM 1217207Z 1218/1318 20012KT 5SM HZ BKN030

FM122200 33015G20KT P6SM BKN015 OVC025

PROB40 1222/1302 3SM SHRA

FM130200 35012KT OVC008

BECMG 1306/1308 02008KT BKN012

 

BECMG 1310/1312 00000KT 3SM BR SKC

 

Definition

1800Z to 1800Z

Term
Reported winds in a METAR are in reference to
Definition
True North
Term

The remarks section for KGXY has RAB35 listed. This entry means:

METAR KABQ 121852Z 25004KT 6SM BR SCT007 SCT250 16/15 A2991 SPECI KGXY 121856Z 32005KT 1 1/2SM RA OVC007 17/16 A2980 RMK RAB35

Definition
rain began at 1835Z
Term
For aviation purposes, ceiling is defined as the height above the Earth’s surface of the
Definition
lowest broken or overcast layer or vertical visibility into an obscuration
Term

Between 1000Z and 1200Z the visibility at KMEM is forecast to be?

TAF

KMEM 121720Z 1218/1318 20012KT 5SM HZ BKN030

PROB40 1220/1222 1SM TSRA OVC008CB

FM122200 33015G20KT P6SM BKN015 OVC025

PROB40 1222/1302 3SM SHRA

FM130200 35012KT OVC008

PROB40 1302/1305 2SM –RASN

BECMG 1306/1308 02008KT BKN012

BECMG 1310/1312 00000KT 3SM BR SKC

TEMPO 1312/1314 1/2SM FG

FM131600 VRB06KT P6SM SKC=

Definition
3 statute miles
Term

What is the forecast wind for KMEM at 0000Z?

TAF

KMEM 121720Z 1218/1318 20012KT 5SM HZ BKN030

PROB40 1220/1222 1 SM TSRA OVC008CB

FM122200 33015G20KT P6SM BKN015 OVC025

PROB40 1222/1302 3SM SHRA

FM130200 35012KT OVC008

PROB40 1302/1305 2SM –RASN

BECMG 1306/1308 02008KT BKN012

BECMG 1310/1312 00000KT 3SM BR SKC

TEMPO 1312/1314 1/2SM FG

FM131600 VRB06KT P6SM SKC=

Definition
330 degrees at 15 KT
Term

During the time period from 0600Z to 0800Z, what visibility is forecast for KOKC?

TAF

KOKC 051130Z 0512/0612 14008KT 5SM BR BKN030

TEMPO 0513/0516 1 1/2SM BR

FM051600 18010KT P6SM SKC

BECMG 0522/0524 20013G20KT 4SM SHRA OVC020

PROB40 0600/0606 2SM TSRA OVC008CB

BECMG 0606/0608 21015KT P6SM SCT040=

Definition

Greater than 6 statute miles

Term
If the temperature/dewpoint spread is small and decreasing, and the temperature is 62 degrees F. what type of weather is most likely to develop?
Definition
Fog or low clouds
Term
A METAR provides ________.
Definition
Current weather for an airport within a 5 sm radius
Term
Winds reported as variable (VRB) vary
Definition
In direction and are 6 knots or less
Term

Where does wind shear occur?

Definition
At all altitudes, in all directions
Term
Weather reported as being in the vicinity (VC) is between ____ and ____ statute miles from the reporting station
Definition
5 and 10
Term
What is meant by the term “dewpoint”?
Definition
The temperature to which air must be cooled to become saturated
Term

The wind direction and velocity at Colorado Springs is:

METAR KPUB 121845Z 11012G18KT 15SM SKC 25/17 A3000

SPECI KGXY 121856Z 32005KT 1 1/2SM RA OVC007 17/16 A2980 RMK RAB35

SPECI KCOS 121853Z 18004KT 1/2SM FG R04/220 OVC005 20/18 A3006

Definition
180 degrees true at 4 knots
Term

What are the current conditions depicted for Greeley Weld County Airport (KGXY)?

SPECI KGXY 121856Z 32005KT 1 1/2SM RA OVC007 17/16 A2980 RMK RAB35

SPECI KCOS 121853Z 18004KT 1/2SM FG R04/220 OVC005 20/18 A3006

Definition
Sky 700 feet overcast, visibility 1-1/2SM, rain
Term

Which of the reporting stations have VFR weather?

METAR KPUB 121845Z 11012G18KT 15SM SKC 25/17 A3000

METAR KDEN 121854Z 13004KT 30SM SCT150 17/6 A3015

METAR KABQ 121852Z 25004KT 6SM BR SCT007 SCT250 16/15 A2991

SPECI KGXY 121856Z 32005KT 1 1/2SM RA OVC007 17/16 A2980 RMK RAB35

SPECI KCOS 121853Z 18004KT 1/2SM FG R04/220 OVC005 20/18 A3006

Definition
KPUB, KDEN, AND KABQ
Term
The two types of METAR reports are
Definition
Routine and Special
Term
It is currently 4:30 p.m. The next routine METAR report will be available in _____ minutes.
Definition
20-30
Term
The only cloud type forecast in TAF reports is
Definition
cumulonimbus
Term

The PROB modifier will be used when there is a _____ percent chance weather phenomena will occur

Definition

30-49

Term

Which modifier would signify a rapid and lasting change in conditions?

Definition
FM
Term
The amount of water vapor which air can hold depends on the
Definition
air temperature
Term

In the TAF from KOKC, the clear sky becomes

TAF

KOKC 051130Z 0512/0612 14008KT 5SM BR BKN030

TEMPO 0513/0516 1 1/2SM BR

FM051600 18010KT P6SM SKC

BECMG 0522/0524 20013G20KT 4SM SHRA OVC020

PROB40 0500/0606 2SM TSRA OVC008CB

BECMG 0606/0608 21015KT P6SM SCT040=

                

Definition

overcast at 2,000 feet during the forecast period between 2200Z and 2400Z

Term

In the following example, what does the “WS” code denote?

WS015/27050KT

Definition

Wind shear can be expected up to 1,500 feet AGL

Term

In the following TAF, what does “VV” signify?

KGEG 241539Z 2416/2512 05003KT 1/4SM FZFG VV001

Definition
Vertical Visibility of 100 feet
Term

The type of visibility reported in METARs is the:

Definition

Prevailing Visibility: Greatest distance that can be seen throughout at least half of the sky

Term
Which conditions result in the formation of frost?
Definition
the temperature of the collecting surface is at or below the dewpoint of the adjacent air and the dewpoint below freezing
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