AIRMET


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AIRMET

Information issued by a meteorological watch office concerning the occurrence, or expected occurrence, of specified en route weather phenomena that may affect the safety of low-level aircraft operations and was not already included in the forecast issued for low-level flights in the flight information region or subarea (ICAO). AIRMETs deal with weather of less severity than that covered by SIGMETs (significant meteorological information) or convective SIGMETs. AIRMETs cover moderate icing, moderate turbulence, sustained surface winds of 30 knots or more, widespread areas of ceiling less than 1000 ft (300 m) and/or visibility less than 3 miles (5 km), and extensive mountain obscurement.
References in periodicals archive ?
Caption: ABOVE: This snippet of an AIRMET briefing shows IMC and approaching thunderstorms.
In their entry in the Federal Register, the FAA and NWS supplied a list of FA substitutes; surface weather analysis charts, prog (prognostic) charts, significant weather charts, TAFs, and AIRMETs (airmen's meteorological information).
GDL([R]) 69AH enables the display of graphical XM WX weather including NEXRAD, METARs, TAFs, TFRs, winds aloft, echo tops, precipitation type at the surface, lightning strikes, storm-cell data, AIRMETs, and SIGMETs.
The model forecasts are also prone to more errors, so you should be extra attentive to forecasts and keep on top of AIRMETs and SIGMETs.
It has the same map layers as you'll find in the Mobile app, plus it overlays weather radar, TFRs, METARs, AIRMETs, SIGMETs and satellite imagery.
Finally, check out the turbulence page at the Aviation Weather Center, which offers not only AIRMETs and SIGMETs but some excellent graphics for CAT and mountain wave turbulence: https://www.
99 per-month entry-level Pilot Express subscription includes the delivery of base reflectivity radar, NEXRAD storm cell attributes, radar coverage map, observed lightning strikes, TFRs, winds aloft (including graphical depiction), AIRMETs, SIGMETs, PIREPs, temperatures aloft, forecast winds, METARs and TAFs.
Customers who equip their helicopter with the GDL 69 will receive graphical weather depictions of NEXRAD, METARs, TAFs, TFRs, winds aloft, echo tops, precipitation type at the surface, lightning strikes, storm-cell data, AIRMETs, and SIGMETs.
Graphical weather depictions of NEXRAD, METARs, TAFs, TFRs, winds aloft, echo tops, precipitation type at the surface, lightning strikes, storm-cell data, AIRMETs, and SIGMETs can be received and displayed on the G500 so that pilots can make informed navigation decisions.
On the topic of route planning, SUA and MOA airspace data currently doesn't exist, but is planned for a future revision, as is AIRMETs, SIGMETs and runway extended centerlines.
This enhancement is in addition to the weather information already available such as NEXRAD Radar, METARs and TAFs displayed in text and graphic formats, panable weather maps, infrared and visible satellite loops, lightning data, SIGMETs, AIRMETs, PIREPs, NOTAMs, winds aloft and more.
Reporting stations along the flight path advertised widespread marginal VFR and Airmets had been issued for moderate icing, mountain obscuration and moderate turbulence, and wind shear.