Een SNOWTAM zal gepubliceerd worden tussen de NOTAMs van het vliegveld en wordt als volgt gedecodeerd
A AERODROME
B DATE/TIME OF OBSERVATION (time of completion of measurement in UTC)
C RUNWAY DESIGNATOR
D CLEARED RUNWAY LENGTH if less than published length, in meters
E CLEARED RUNWAY WIDTH if less than published width, in meters
F DEPOSITS OVER TOTAL RUNWAY LENGTH (observed on each third of the runway starting from the threshold having the lower designation number)
Nil - Clear and dry
1 - Damp
2 - Wet or water patches
3 - Rime or frost covered (depth normally less than 1 mm)
4 - Dry snow
5 - Wet snow
6 - Slush
7 - Ice
8 - Compacted snow or rolled snow
9 - Frozen ruts or ridges
G MEAN DEPTH FOR EACH THIRD OF THE TOTAL RUNWAY LENGTH in mm
H BRAKING ACTION ON EACH THIRD OF THE RUNWAY Measured or calculated co-efficient
Estimated braking action
0.40 and above Good
0.39 to 0.36 Medium/Good
0.35 to 0.30 Medium
0.29 to 0.26 Medium/Poor
0.25 and below Poor
9 Unreliable
J CRITICAL SNOWBANKS EXIST (if present, insert height in cm, distance from the runway edge in meters, followed by L,R or both LR if applicable)
K RUNWAY LIGHTS (if obscured insert YES, followed by L,R or both LR if applicable)
L FURTHER CLEARANCE (if planned, insert length in meters, width in meters to be cleared, or if to full dimension insert TOTAL)
M FURTHER CLEARANCE EXPECTED TO BE COMPLETED BY .... (UTC)
N TAXIWAY (if no appropriate taxiway available insert NO_
P TAXIWAY SNOWBANKS (if more than 60cm high, distance apart in meters)
R APRON (if unuseable, insert NO)
S NEXT PLANNED OBSERVATION/MEASUREMENT IS FOR .... (month/day/hour in UTC)
T PLAIN LANGUAGE REMARKS (if required)
