TBL 4-5-3 FIS-B Over UAT Product Update and Transmission Intervals Product Update Interval1 Transmission Interval (95%)2 5 minutes Basic Product Yes AIRMET As Available AWW/WW As Available, then at 15 minute 5 minutes intervals for 1 hour No Ceiling As Available No Convective SIGMET As Available, then at 15 minute 5 minutes intervals for 1 hour Yes D-ATIS Echo Top As Available 5 minutes 1 minute 5 minutes No No METAR/SPECI 1 minute (where available), As 5 minutes Available otherwise Yes MRMS NEXRAD (CONUS) MRMS NEXRAD (Regional) NOTAMs-D/FDC NOTAMs-TFR PIREP 2 minutes 2 minutes As Available As Available As Available Yes Yes Yes Yes Yes SIGMET As Available, then at 15 minute 5 minutes intervals for 1 hour Yes SUA Status TAF/AMEND Temperature Aloft TWIP Winds aloft Lightning strikes 3 Turbulence 3 As Available 6 Hours (15 minutes) 12 Hours (15 minutes) As Available 12 Hours (15 minutes) 5 minutes 1 minute 10 minutes 10 minutes 10 minutes 1 minute Yes Yes Yes No 10 minutes 5 minutes 15 minutes Yes Yes Yes Icing, Forecast Potential (FIP) 3 Cloud tops 3 60 minutes 30 minutes 15 minutes 15 minutes Yes Yes 1 Minute AWOS 3 Graphical-AIRMET 3 Center Weather Advisory (CWA) 3 Temporary Restricted Areas (TRA) 1 minute As Available As Available 10 minutes 5 minutes 10 minutes No Yes Yes As Available 10 minutes Yes Temporary Military Operations Areas As Available (TMOA) 10 minutes Yes 10 minutes 15 minutes 2.5 minutes 10 minutes 10 minutes 10 minutes The Update Interval is the rate at which the product data is available from the source. The Transmission Interval is the amount of time within which a new or updated product transmission must be completed (95%) and the rate or repetition interval at which the product is rebroadcast (95%). 3 The transmission and update intervals for the expanded set of basic meteorological products may be adjusted based on FAA and vendor agreement on the final product formats and performance requirements. Surveillance Systems 4-5-21