SIGMET information

Date: 2015-10-07; view: 428.

Weather

ATIS in radiotelephony

ATIS (Automatic Information Service)

Monitor ATIS (frequency)

Current information (index)

Acknowledge information (index)

*ATIS is garbled

VOLMET (meteorological information for aircraft in flight)

ATIS elements sequence:

(airport designation) information(index) (observation time)

(type of approach)

runway(number) (runway surface condition) braking action (good, medium and etc.)

(other pertinent information)

(surface) wind(direction and speed)

visibility(distance) RVR runway(number) (distance)

(weather phenomena affecting visibility)

cloud(amount) (type) (height of cloud base)

temperature(number)dew point(number)

(altimeter setting values)

(significant weather phenomena)

a) location indicator of the ATS unit or control area to which the SIGMET message refers;

b) message identification and number;

c) the period of validity in UTC;

d) location indicator of the meteorological watch office;

e) name of FIR or control area;

f) phenomenon and description;

g) indication whether the information is observed and expected to continue;

h) location (latitude and longitude or geographic features) and level;

i) movement with reference to one of the eight points of compass given in kilometers per hour or knots;

j) changes in intensity;

k) an outlook providing information beyond the period of validity.

© Н.П. Мельниченко, С.А. Мельниченко, 2005

Thunderstorm

– obscured OBSC TS

– embedded EMBD TS

– frequent FRQ TS

– squall line SQL TS

– obscured with heavy hail OBSC TS HVYGR

– embedded with heavy hail EMBD TS HVYGR

– frequent, with heavy hail FRQ TS HVYGR

– squall line with heavy hail SQL TS HVYGR

Tropical cyclone TC (+ cyclone name)

Turbulence

– severe turbulence SEV TURB

icing

– severe icing SEV ICE

– severe icing due to freezing rain SEV ICE (FZRA)

Mountain wave

– severe mountain wave SEV MTW

Dust storm

– heavy dust storm HVY DS

Sandstorm

– heavy sandstorm HVY SS

Volcanic ash

– volcanic ash VA (+ volcano name)

Observed OBS

Forecast FCST

Moving east 40 km per hour MOV E 40 KMH

Intensifying INTSF

Weakening WKN

No change NC

© Н.П. Мельниченко, С.А. Мельниченко, 2005