Meteorological records
Meteorological records

Meteorological records issued by the commanders of the ships


At present, in connection with the intensive development of flights of aircraft with gas turbine engines, a new form of meteorological support for flights has been introduced, consisting in the fact that for crews of aircraft with turbojets and turbojets with a duration of flights of 1 h and more and aircraft with piston engines with a flight duration of 2 h and more Along with mandatory oral preflight consultation, the following meteorological documentation is issued: "Predictive chart of special weather phenomena", "Predictive map of AT-300 mb surface" and Form "AV-11" with weather forecasts for emergency aerodromes.

On prognostic significant weather charts solid lines with a dash encircled the area with the expected unfavorable weather conditions for flying. Inside the allocated areas indicate the number, shape and height of the expected cloud, causing significant weather, and conventional signs denote these special events.

On the prognostic map AT-300 l <b, isohypses are drawn, the centers of high-altitude cyclones and anticyclones are indicated, arrows indicate the direction of the wind and indicate its speed, the fraction indicates the expected height and temperature of the tropopause above various points, and also the axes of the scab currents are drawn with the indication of the height and speed winds in different areas. The forecast situation on maps of special weather phenomena and AT-300 mb of the surface is given in the middle of the validity period of these maps. Depending on the specified flight standard on the AMSG, in addition to the AT-300 mb surface map, maps of absolute topography (AT) and other isobaric surfaces can be issued. In the practice of the meteorological service, maps of the main isobaric surfaces are compiled.