Instrument Rating – Helicopter › I. Preflight Preparation › Task B. Weather Information

IH.I.B.K2f

Knowledge

Acceptable weather products and resources required for preflight planning, current and forecast weather for departure, en route, and arrival phases of flight such as:

Convective Outlook (AC)

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Study note

Get a short, cited explanation of this element written from the FAA handbooks: the core idea, the numbers that matter, common test traps, and a quick self-check.

From the FAA library

Aviation Weather Handbook p. 27-56
27 Forecasts › 27.17 Additional Products for Convection › 27.17.1 Convective Outlook (AC)
users: • Convective Outlook, • TCF, and • ECFP. Note: The National Convective Weather Forecast (NCWF) was retired in 2018. 27.17.1 Convective Outlook (AC) The NWS SPC issues narrative and graphical Convective Outlooks (AC) to provide the CONUS NWS WFOs, the public ... inch or greater) and non-severe (general) convection and specific severe weather threats during the following eight days. The Convective Outlook defines areas of marginal risk (MRGL), slight risk (SLGT), enhanced risk (ENH), moderate risk (MDT), or high risk (HIGH…
Aviation Weather Handbook p. E-1
28 Aviation Weather Tools › 28.3 FAA Flight Service’s Interactive Map
Regulations 3D Three Dimensional A Arctic AAG Alaska Aviation Guidance AAWU Alaska Aviation Weather Unit AC Advisory Circular AC Convective Outlook ACARS Aircraft Communications Addressing and Reporting System ACFJ Australia, Canada, France, and Japan ACSL Altocumulus Standing Lenticular…
Instrument Flying Handbook p. 10-22
Chapter 10: IFR Flight › Instrument Weather Flying › Turbulence
determining areas of potential turbulence. These include the Severe Weather Warning (WW), SIGMET (WS), Convective SIGMET (WST), AIRMET (WA), Severe Weather Outlook (AC), Center Weather Advisory (CWA), Area Forecast (FA), and Pilot Reports (UA or PIREPs). Since thunderstorms are always…