Weather Reports And Forecasts Flashcards

1
Q

What are METARs

A

Aviation routine weather report

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2
Q

What are SPECIs

A

Non routine aviation weather report

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3
Q

What is RVR and hiw reported

A

Runway visual range

R35L/2400ft

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4
Q

What are these descriptor codes FZ BL DR MI BC PR

A

FZ - Freezing

BL- Blowing

DR - Low Drifting

MI - Shallow

BC - Patches

PR- Partial

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5
Q

Tell octas of SKC FEW SCT BKN OVC

A

Skc - 0

Few - 1/2

Sct - 3/4

Bkn - 5/6/7

Ovc - 8

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6
Q

What are PIREPs

A

Pilot weather reports

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7
Q

How often are radar weather reports sent?

A

35 mins past each hour

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8
Q

What us TAF

A

Terminal Area Forecast issues 4 times a day valid for 24 hrs

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9
Q

How many levels is winds and temp aloft forecast for?

A

9 levels between 3000 & 36000ft

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10
Q

What is 9900 and 7701in wintemp

A
  1. = light and var

7701

77-50 = 27 thus 270 degrees

01+100=101 thus 101 kts

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11
Q

What is WH

A

Hurricane advisory if located within 300 nautical miles of shore

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12
Q

What is AC

A

Convective outlook, which is a national forecast of thunderstorm activity covering 3 24 hour periods day one day two date three

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13
Q

What is WW

A

Severe weather watch bulletin defines areas of possible severe thunderstorms. These are unscheduled.

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14
Q

What is AWW

A

Alert severe weather watch

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15
Q

What are WAs

A

AIRMET which is air man’s metrological information? These are issued every six hours four times a day

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16
Q

What are types of airmets

A

Sierra - issued for IFR conditions and mountain obscuration ceiling less than 1000 feet or visibility less than three statute miles

Tango - turbulence, strong surface winds, low level winds

Zulu - icing and freezing levels

17
Q

What are WSs

A

SIGMETS significant metrology information for severe icing or turbulence or clear air turbulence

18
Q

How often are sigmets issues

A

They are unscheduled forecast, but are valid for four hours segments, which relate to hurricanes are valid for six hours

19
Q

What are WSTs

A

Convective segments issued for hazardous convective, weather, tornadoes, lines of thunderstorms embedded, thunderstorms or guts 50 kn or higher

20
Q

How often are convective sigmets issues?

A

They are issued 55 minutes past each hour and our valid for two hours