User Guide

Table Of Contents
AV8OR Ace User’s Guide Aviation Mode Operation
Weather Function
Pub. No D200904000003 Page 3-141 Rev 1 Jul 2009
© Honeywell International Inc. Do not copy without express permission of
Honeywell.
Figure 3-148: Text AIRMETs
An AIRMET is an advisory of significant weather that could be
hazardous to single engine, light aircraft and VFR pilots. However,
parameters are such that the phenomena do not require issuance of
a SIGMET. AIRMETs address details regarding IFR, extensive
mountain obscuration, turbulence, strong surface winds, icing and
freezing levels. AIRMETs are considered widespread because they
must either be affecting or forecast to affect an area at least 3,000
square miles. However, during the forecast period, the actual
affected area may be much smaller. AIRMETs are issued every six
hours and the maximum forecast period is 6 hours.
An AIRMET contains elements in the following order:
Forecast Area
Report Type
Date and time issued
Report designation and reason for issuance
Validity period
Area of coverage
Weather phenomenon details.
Text SIGMETs (USA only)
Tap on the CHOOSE PRODUCT soft key on the Weather Main page
and select Text SIGMETs from the SELECT WX PRODUCT box.