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AvnFPS and CAC. Avoid the Green Light syndrome!!!. Role of NWS TAFs. Used for planning purposes by airline dispatchers, air traffic managers, and GA pilots Should define operational impacts Categorical values needed by customers to determine arrival and departure procedures
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AvnFPS and CAC Avoid the Green Light syndrome!!!
Role of NWS TAFs • Used forplanning purposesby airline dispatchers, air traffic managers, and GA pilots • Should define operational impacts • Categorical values needed by customers to determine arrival and departure procedures • Should focus on the 2 to 6 hour time frame
Categorical Amendment Criteria Provides our customers with a more responsiveproduct tailored to their regulatory needs Allows forecasters to use AvnFPS as a Decision Tool rather than an alert monitor
Categorical Amendment Criteria • Employs the following important concepts: • Tailors Ceiling and Visibility to meet specific airport requirements • Groups Ceiling and Visibility together into categoriesto match FAA Regulations • TEMPO groups checked immediately against METARS to notify forecasters of resulting customer impacts
Categorical Amendment Criteria • Categorical Amendment Criteria: • Thelowest element of ceiling or visibility is considered “controlling” for AMD purposes • Standard Amendment Criteria: • Prompts for an AMD based on ceiling ORvisibility
Light Green PVD CAT B (Alternate Min): 800 ft and 2SM
Yellow All CAT E (Fuel Alternate): 2000 ft and 3SM
Purple ORH CAT A (Airfield Min): 200 ft and 1/2SM