Weather Services Flashcards
Aviation Routine weather Report
Metar (stand for)
Observation of Current Condition at an Airport
Metar ( Definition )
50 Minutes of each hou
Metar ( Issued )
Cover the Airport
Metar ( coverage )
Terminal Area Forecast
TAF ( Stand for)
A concise Statement of Expected Meteorological conditions within a 5SM radius of an airport
TAF (Definition )
4x a day at 0z 6z 12z 18z
TAF ( issued )
24 hours
TAF (Valid)
5 statute miles from the center of the runway complex.
TAF (coverage)
issuance time only
Metar ( valid )
Aviation Area Forecast
FA ( Stand for)
Forecast of visual meteorological conditions, Clouds and general Weather over an area of Several States.
FA ( definition )
Comunications and product header, precautionary statement, synopsis, VFR Clouds e Weather
FA (contain)
3 Times daily
FA (issued)
18Hours - 12 hours forecast - 6 hours Categorical outlook
FA (Valid)
Several States
FA (coverage)
Airmens Meterological Information
Airmet ( Stand For )
Advises of non-convective weather that is potentially hazardous to all aircraft but specially to small aircrafts.
Airmet ( Definition )
every six hours starting at 01:45 UTC
Airmet ( issued )
6 Hours
Airmet ( Valid )
IFR Conditions and extensive mountain obscuration.
Airmet ( Sierra )
Moderate Turbulence, sustained surface winds 30 knots or greater, non-convective low-level wind shear
Airmet ( Tango )
Moderate icing and Freezing levels.
Airmet ( Zulu
3000 Square Miles.
Airmet ( coverage )
Significant Meterological Information
SIGMET ( Stand for )
Advises of Non-convective weather that is potentially hazardous to all aircraft.
SIGMET (definition)
Severe icing, Severe to extreme turbulence or CAT, Dust and Sand Storm that reduce visibility to less than 2 SM,Volcanic ash
SIGMET (contain)
Unscheduled
SIGMET (issued)
4 Hours
SIGMET (valid)
3000 Square Miles
SIGMET ( Coverage )
Convective Sigmet Meterological Information
Convective Sigmet ( stand for )
Advises of convective weather that is potentially hazardous to all aircraft
Convective Sigmet ( Definition )
Severe thunderstorm due to hail at the surface of 3/4 inch or greather / surface winds of 50 knots or greater / Tornados / Embedded Thunderstorms / A line of thunderstorms or thunderstorms producing heavy or greater precipitation affecting at least 40%
Convective Sigmet ( Contain )
Hourly at 55 of each hour
Convective Sigmet ( Issued )
2 Hours
Convective Sigmet ( Valid )
3000 square miles
Convective Sigmet ( coverage )
Pressure (isobar e high low centers) / Fronts / Weather - Stations with weather symbolos: sky coverage wind direction e speed, temp/dewpoint / preciptation.
Surface Analysis Chart ( Contain )
Every 3 hours
Surface Analysis Chart ( Issued )
At issuance Time only
Surface Analysis Chart ( Valid )
Low pressure circulates the air counterclock sucking the air and trowing it out and up.
Surface Analysis Chart ( infos )
Observed flying category ( IFR, MVFR, VFR )
Weather Depiction Chart ( Contain )
Every 3 hours starting at 01Z each day
Weather Depiction Chart ( issued )
at issuance time only
Weather Depiction Chart ( Valid )
Four Panels - Top two panels are like weather depiction plus turbulence and freezing levels. Lower two panels are like surface analysis.
Low-Level Significant Prognostic Chart ( Contain )
4 times a day at 0z 6z 12z 18z
Low-Level Significant Prognostic Chart ( issued )
12 and 24 hours (Time is also on chart)
Low-Level Significant Prognostic Chart ( valid )
Notice to airmen
NOTAM ( stand for )
Time-critical aeronautical information of a temporary nature not sufficiently know in advance to permit publication charts that might effect a pilots decision to make a flight.
NOTAM ( Definition
Local
NOTAM ( L ) Stand for
Information Regarding a local airport enviroment.
NOTAM L ( Definition )
Taxiways closures, men and equipment working near or crossing runways and non-navigational lighting such as VASI
NOTAM L ( Contain )
Distant
NOTAM D ( Stand for )
Information for all navigational Facilities and public airports.
NOTAM D ( Definition)
outages / limitations on VIR, ILS NDB, DME, Major runway closure.
NOTAM D ( Contain ) 2
Flight Data Center
NOTAM FDC ( Stand for )
Information that is regulatory in nature.
NOTAM FDC ( Definition )
Amendments to aeronautical Charts & IAPS ,also TFR’S
NOTAM FDC ( Contain )1
More concise / Temperature expected / High and Low Temperature only / Pressure Expected
MILITARY TAF
Report provided from a Pilot during flight reporting any diferent weather condition
PIREPS
No longer ExistsEnroute Flight Advisory AKA Flight Watch
EFAS ( Stand for )
No longer Exists Was Flight Watch on Frequency 122.0
EFAS ( Infos )
No longer ExistsWas Reports urgent Pireps / Storms / Wind Shear / Turbulence / Airmet
EFAS ( contain )
No longer ExistsDid Report Hazardous during Flight
EFAS ( Definition )
No longer Existswas using any VOR frequency of the area
EFAS ( how to find it)
No longer ExistsBelow 17,500 and above 5,000 feet.
EFAS ( Availability )