11 1 DUST/SAND WHIRL
22 2 SQUALLS
33 3 SAND STORM
44 4 DUST STORM
55 5 LIGHTNING - CLOUD TO SURFACE
66 6 LIGHTNING - CLOUD TO CLOUD
77 7 LIGHTNING - DISTANT
88 8 THUNDERSTORM
99 9 FUNNEL CLOUD NOT TOUCHING SURFACE
1010 10 FUNNEL CLOUD TOUCHING SURFACE
1111 11 SPRAY
12