25 Lp METAR/SPECI

Question 1

What are the three automated observation system is used at US airports?

Answer 1

-automated weather observing system – AWOS
– automated service observing system – ASOS
– automated weather sensor system – AWSS

Question 2

METAR

Answer 2

Aviation routine weather report

Question 3

The primary observation code used in the United States and worldwide for reporting surface meteorological data

Answer 3

Aviation routine weather report – METAR

Question 4

What are the two sections of a METAR

Answer 4

• body

– remarks

Question 5

METAR

-The body consists of a maximum of how many groups?

Answer 5

11

Question 6

METAR

-The remarks section consist of what two categories?

Answer 6

-automated, manual, and plain language

– additive and Maintenance data

Question 7

METAR

-when an element does not occur or cannot be observed the corresponding group is _______from that particular report

Answer 7

Omitted

Question 8

SPECI

Answer 8

Aviation selected special weather report

Question 9

An unscheduled report taken when certain criteria have been observed

Answer 9

SPECI

Question 10

These criteria denote weather changes important to aircraft safety

• only applicable to stations which have the capability of evaluating the event.
• contains all of the data elements found in a METAR

Answer 10

SPECI

Aviation selected special weather report

Question 11

With the exception of report modifier, runway visual range, present weather group, and remarks, when is the word “missing” announced?

Answer 11

When any item or component of the weather report is not reported.
-Also in place of unreadable or obviously incorrect items or portions of weather reports

Question 12

If the report is a SPECI, do you announce what type of report it is? If the report is a METAR, do you announce what type of report it is?

Answer 12

SPECI – special report, yes

– METAR – do not announce the type of report, no

Question 13

What is included in all reports to identify the station to which the coded report applies?

Answer 13

Station identifier

Question 14

What type of codes have a regional structure, are not duplicated, and are comprehensive

Answer 14

ICAO airport codes

-International civil aviation organization

Question 15

ICAO

Answer 15

International civil aviation organization

Question 16

ICAO airport codes –
The first letter =\_\_\_\_\_\_
2nd letter=\_\_\_\_\_\_\_
Final two letters =\_\_\_\_\_
Exception: in larger countries that have single letter country codes, like the USA, remaining three letters identify the\_\_\_\_\_.

Answer 16

– Region
– a country with in that region
– identify each airport
– identify the airport

Question 17

In eastern North Pacific region, the ICAO prefix begins with___ Followed by the appropriate _____, With the last two letters used to identify____.

Answer 17

P
Country code
– identify each airport

Question 18

The ______ of report element is the actual time of the report or when the criteria for a SPEC I was met or noted

Answer 18

Date and time – UTC

Question 19

Date and time of report coding format:
121456Z
12- \_\_\_\_\_\_
14\_\_\_\_\_\_
56-\_\_\_\_\_\_
Z-\_\_\_\_\_\_

Answer 19

First two digits are the day of the month
– next two digits are the hour UTC
– final two digits are the minute UTC
– Z- Coordinated Universal Time