ICING THREAT OVERLAY - Weather4Cast.com
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06 May ICING THREAT OVERLAY

ICING THREAT OVERLAY
    • The Icing Threat Layer provides forecasted areas of icing across the globe from 6,000 feet to 30,000 feet with icing intensity color coded.
    • The Icing Threat Layer is derived from the Global Forecast System (GFS) numerical model with a legend provided for light, moderate and heavy icing when viewed via the TOPS platform.
    • The Icing Threat Layer shows icing for the following flight levels: FL060, FL100, FL140, FL180, FL240 and FL300 across the globe with icing at all of these levels forecasted 6 hours, 12 hours, 18 hours, 24 hours, 30 hours and 36 hours in advance.
    • The Icing Threat Overlay is updated 4 times per day via the GFS numerical model 00Z, 06Z, 12Z and 18Z data. The refresh time and rate for the Icing Threat Overlay via TOPS is updated per the following: 03:15Z, 09:15Z, 15:15Z and 21:15Z every day.

     
    The following is an example screenshot of the Icing Threat Layer via the TOPS Flight Watch platform.