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.
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Caption: ABOVE: This snippet of an AIRMET briefing shows IMC and approaching thunderstorms.
DIY weather briefing
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).
FA swan song
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.
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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.
Foreflight for desktop: cloud-based planner: ForeFlight's new web flight planner replicates the familiar ForeFlight Mobile tablet app, plus it syncs route data between the desktop computer and tablet
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.
Why it's so bumpy
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.
Garmin GDL69 SXM: price ADS-B instead: Garmin has a replacement for older GDL69 XM receivers, but upgrading to the GDL88 ADS-B receiver could be a better long-term strategy
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.
AvNav EFB for Android: free charts, easy menus: for five bucks a month, the AvNav EFB navigation app for Android delivers fast map rendering, DUAT brief and file, plus free georeferenced charts
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.
High-risk flights: we flirt with increased risk because we either ignore the obvious or fail to consider more subtle hazards

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