MAV MOS PROB. OF VISIBILITY <= 1/2 MI (%)
Valid 1500 UTC Wednesday
Wednesday Thursday Friday Saturday
00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

PROB. OF VISIBILITY <= 1/2 MI: The probability that the prevailing visibility at the specified time will be less than or equal to 1/2 mile.