shows forecast significant weather

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Regional Gliding School

includes: isobars (joins places of equal pressure), high and low pressure areas, air masses and fronts

shows actual conditions at a specific time

the pressure pattern is representative of the atmosphere up to 3000 feet

issued 4 times daily at 6 hour intervals.

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3

EXAMPLE

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This is another example of a surface

weather chart.

Candidates are not required to decipher

the chart. This information will be

taught during the course next summer

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show actual wind flow patterns and

temperature aloft at various altitudes at a specific time

measured twice a day at 0000 Zulu and 1200 Zulu.

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is a graphic forecast

shows expected surface weather at a specific time in the future

issued 48 hours before they are valid and a second revised chart is issued 12 hours later (36 hours before they are valid).

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a graphic forecast of winds and

temperatures aloft for a specific time

prepared for specific high level altitudes

issued 4 times daily 12 hours before valid

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shows forecast significant weather

considered to be of concern to aircraft operations.

issued 4 times daily 12 hours before they are valid

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Regional Gliding SchoolNOTE: You must use the buttons in the Confirmation Stage

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A B C D

Hourly

Every four hours

Let's try a few review questions on Meteorology:

Question #1 - When are surface weather charts issued?

Every six hours Every twelve hours

Meteorology Meteorology

Weather maps & Services Weather maps & Services

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I’m afraid that answer is incorrect Let's try again...

Flying Scholarship Program

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That answer is correct.

Let's move on...

includes: isobars (joins places of equal pressure), high and low pressure areas, air masses and fronts

shows actual conditions at a specific time

the pressure pattern is representative of the atmosphere up to 3000 feet

issued 4 times daily at 6 hour intervals.

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Question #2 - What is a prognostic chart?

Weather Maps & Services Weather Maps & Services

A B C D

Wind flow patterns and temperatures Graphic forecast

Shows actual conditions Significant weather

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(17)

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That answer is correct.

Let's move on...

is a graphic forecast

shows expected surface weather at a specific time in the future

issued 48 hours before they are valid and a second revised chart is issued 12 hours later (36 hours before they are valid).

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taken and issued on the hour, every hour, at weather stations around the world

an actual observation of current weather conditions taken by an accredited observer

cloud heights are above ground

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states in specific terms the expected weather conditions at a specific aerodrome

cover a radius of five nautical miles around the aerodrome

issued four times daily at six hour intervals

valid for up to 24 hours

cloud heights are above ground

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general forecast conditions over a particular area

forecasts for various regions within the area

cloud heights above sea level unless noted

issued every six hour

valid for 12 hours with a further 12 hours outlook

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METAR Meteorological Aviation Report CYHZ Airport (Halifax International)

292000Z Issued on 29^th day on the month at 2000 UTC CCA Corrected Report

30015G25KT Winds are 300 degrees true at 15 gusting 25 knots 3/4SM Visibility is ¾ statute mile

R33/4000FT/D RVR runway 33 at 4000 feet has a downward tendency -SN Light snow showers

METAR CYHZ 292000Z CCA 30015G25KT 3/4SM

R33/4000FT/D -SN BLSN BKN008 OVC040 M05/M08 A2992 REFZRA WS RWY33 RMK SF5 SC3 VIS 3/8 TO NW SLP134

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BLSN Blowing Snow

BKN008 Ceiling is 800 feet broken OVC040 Clouds are 4000 feet overcast

M05/M08 Temperature minus 5°C and dewpoint minus 8°C A2992 Altimeter setting is 29.92 “Hg

REFZRA Recent freezing rain

WS RWY33 Wind shear at runway 33

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RMK Remarks

SF5 Stratus Fractus covering 5 oktas SC3 Stratocumulus covering 3 oktas VIS 3/8 Visibility is 3/8 statute mile

TO NW To the northwest

SLP 134 Sea level pressure is 1013.4kPa

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TAF Terminal Area Forecast

CYQM Airport (Moncton International)

031530Z Issued on 3^rd day of the month at 1530 UTC

031604 Valid on 3^rd day from 1600 UTC until 0400 UTC of the following day

VRB03KT Winds are variable at 3 knots P6SM Visibility plus 6 statute miles

TAF CYQM 031530Z 031604 VRBO3KT P6SM SCT030 TEMPO 1622 P6SM BKN030 FM0500Z VRBO3KT 2SM BR BKN008 TEMPO 0510 1/2SM FG VV002 FM 1200Z VRBO3KT P6SM SCT030 TEMPO 1213 2SM BR

BKN015 RMK NXT FCST BY 22Z

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SCT030 Clouds are scattered at 3000 feet

TEMPO 1622 Temporarily from 1600 UTC until 2200 UTC P6SM Plus 6 statue miles visibility

BKN030 Ceiling is broken at 3000 feet

FM0500Z From 0500 UTC

VRB03KT Winds are variable at 3 knots

2SM BR Visibility is 2 statue miles in mist

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BKN008 Ceiling broken at 800 feet

TEMPO 0510 Temporarily from 0500 UTC until 1000 UTC 1/2SM FG ½ statue mile in fog

VV002 Vertical visibility is 200 feet FM 1200Z From 1200 UTC

VRBO3KT Winds are variable 3 knots P6SM Plus 6 statute mile visibility

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SCT030 Clouds are scattered at 3000 feet

TEMPO 1213 Temporarily from 1200 UTC until 1300 UTC 2SM BR Visibility 2 statute miles in mist

BKN015 Ceiling is broken at 1500 feet

RMK Remarks

NXT FCST Next Forecast

BY 22Z By 2200 UTC

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Regional Gliding SchoolNOTE: You must use the buttons in the Confirmation Stage

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Question #3 - View and complete the TAF Work Sheet chart.

TAF Sample TAF Sample

Answer

(34)

Congratulations!!

You have now completed the Weather Maps and Services lesson and the Meteorology Module. Of course, this lesson and module is always available to you for future reference if required.

You are now ready to move along to the next module you have not completed. You can advance to the Self Test Module if you feel ready to challenge the final exam.

Good Luck!