Boeing ForeFlight Sentry - ADS-B Tower Tier Look-Ahead Range Table

ADS-B WEATHER
ADS-B Tower Tier Look-Ahead Range
Refer to the table below to determine weather product availability and broadcast range.
Weather Product
Surface
Towers
Low Altitude
Tier
Medium
Altitude Tier
High Altitude
Tier
CONUS NEXRAD
Not Provided
Entire CONUS
REGIONAL NEXRAD
150 nm
200 nm
250 nm
METAR
100 nm
250 nm
375 nm
CONUS B & C
Airports
TAF
100 nm
250 nm
375 nm
AIRMET/SIGMET
100 nm
250 nm
375 nm
500 nm
Graphical AIRMETs
Not Provided
250 nm
375 nm
CWA
PIREPs
SUA
NOTAM
100 nm
Cloud Tops
Not Provided
150 nm
200 nm
250 nm
Icing
Lightning
Turbulence
Winds & Temp Aloft
500 nm
750 nm
1000 nm
FIS-B Look-Ahead Range by Tower Tier and Weather Product
Sentry Pilot’s Guide 43