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AIM 

4/20/23

 

7

1

26

Meteorology

example would be a NEXRAD radar composite/mosaic map, which has been modified by changing the scaling
resolution. The methodology of assigning reflectivity values to the resultant image components should be
described in the vendor’s guidance material to ensure that the user can accurately interpret the displayed data.

TBL 7

1

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.