6/17/21
AIM
TBL 4
−
5
−
3
FIS−B Over UAT Product Update and Transmission Intervals
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.
Surveillance Systems
4
−
5
−
21