TBL 7 − 1 − 1 FIS − B Over UAT Product Update and Transmission Intervals 8/15/19 3/15/07 7/16/20 Product Update Interval 1 Transmission Interval (95%) 2 Basic Product AIRMET As Available 5 minutes Yes AWW/WW As Available, then at 15 minute intervals for 1 hour 5 minutes No Ceiling As Available 10 minutes No Convective SIGMET As Available, then at 15 minute intervals for 1 hour 5 minutes Yes D − ATIS As Available 1 minute No Echo Top 5 minutes 5 minutes No METAR/SPECI 1 minute (where available), As Available otherwise 5 minutes Yes MRMS NEXRAD (CONUS) 2 minutes 15 minutes Yes MRMS NEXRAD (Regional) 2 minutes 2.5 minutes Yes NOTAMs − D/FDC As Available 10 minutes Yes NOTAMs − TFR As Available 10 minutes Yes PIREP As Available 10 minutes Yes SIGMET As Available, then at 15 minute intervals for 1 hour 5 minutes Yes SUA Status As Available 10 minutes Yes TAF/AMEND 6 Hours ( ± 15 minutes) 10 minutes Yes Temperature Aloft 12 Hours ( ± 15 minutes) 10 minutes Yes TWIP As Available 1 minute No Winds aloft 12 Hours ( ± 15 minutes) 10 minutes Yes Lightning strikes  3 5 minutes 5 minutes Yes Turbulence  3 1 minute 15 minutes Yes Icing, Forecast Potential (FIP)  3 60 minutes 15 minutes Yes Cloud tops  3 30 minutes 15 minutes Yes 1 Minute AWOS  3 1 minute 10 minutes No Graphical − AIRMET  3 As Available 5 minutes Yes Center Weather Advisory (CWA)  3 As Available 10 minutes Yes Temporary Restricted Areas (TRA) As Available 10 minutes Yes Temporary Military Operations Areas (TMOA) As Available 10 minutes Yes 1 The Update Interval is the rate at which the product data is available from the source. $^{2}$ 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. Meteorology 7 − 1 − 22 AIM  7110.65R CHG 2 AIM