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 ?
The GDL 69 delivers a robust set of capabilities that includes: -- High-resolution NEXRAD weather data* -- METARs (in graphical or textual format)* -- Precipitation type (at surface)* -- TAFs* -- TFRs* -- Winds aloft (at altitude) -- Echo tops -- Lightning -- Storm-cell data (size, speed and direction) -- AIRMETs -- SIGMETs
With the new system, users have access to value added weather data including WSI NOWrad(R) mosaic radar imagery, WSI satellite imagery, WSI AVcharts(SM), METARs, TAFs, NOTAMs, pilot reports, SIGMETs, AIRMETs, area forecasts, severe weather watches and warnings, and Center Weather Advisories.
WSI InFlight delivers the industry's highest quality radar mosaic, WSI's NOWrad(R), depicting areas of rain, snow and mixed precipitation, along with echo tops and movement, graphical and textual surface observations (METARs) and Terminal Area Forecasts (TAFs), plotted SIGMETs and AIRMETs direct to the cockpit.
Flight Explorer for PILOTbrief Vector, developed under a strategic alliance between WSI, a global leader in real-time weather data, imagery, and weather forecast services, and DI, the world's leading provider of aircraft situation displays and National Airspace System flight data, offers simultaneous display of in-flight aircraft and global, national, or local weather, including NOWrad(R) radar mosaics, satellite imagery, plotted SIGMETs, AIRMETs, Convective SIGMETs and severe weather watch boxes.
WSI InFlight delivers the industry's highest quality radar mosaic, WSI NOWrad(R), depicting areas of rain, snow and mixed precipitation, along with echo tops and movement, graphical and textual surface observations (METARs) and Terminal Area Forecasts (TAFs), plotted SIGMETs and AIRMETs direct to the cockpit.
The upgraded system will allow users to see National Weather Service in-flight weather advisories such as SIGMETs, AIRMETs and convective SIGMETs plotted graphically on a map within seconds after they are issued rather than having to interpret complicated text messages.
PILOTbrief Vector also features a host of other products including pilot reports, area forecasts, SIGMETs, AIRMETs, convective SIGMETs, and Center Weather Advisories, all of which combine to give pilots, fixed-based operations, and dispatchers fast, comprehensive weather information.