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For the immediate Hawai`i area, products issued are Terminal Aerodrome Forecasts (TAFs), area forecasts, upper level wind and temperature forecasts, and AIRMETs (AIR pilots METeorological information) for low clouds, turbulence, and icing. In addition, the Honolulu forecast office is an aviation Meteorological Watch Office that covers approximately 8,650,800 square miles. See Aviation Area Map.

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Aviation section from the Area Forecast Discussion
issued at: Aug 20, 2018 8:30 PM HST

Northeast trade winds will strengthen as surface high pressure builds north of the area and Hurricane Lane approaches from the southeast. Stronger trade winds will cause moderate mechanical turbulence to develop over and along leeward slopes of mountains across the state. AIRMET Tango was issued for low level moderate turbulence.

Drier and more stable air will produce decreasing cloud and showers trends with VFR conditions prevailing through Tuesday.

Clouds and showers are likely to increase later in the week as Hurricane Lane approaches. The weather over the area will be greatly dependent on the track of hurricane.

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