MEXTSVR MOS 12-HR PROBABILITY OF THUNDERSTORMS (LTNG) (%)
Valid 0000 UTC Wednesday (Tuesday Evening)
Wednesday Thursday Friday Saturday Sunday Monday Tuesday Wednesday
00 12 00 12 00 12 00 12 00 12 00 12 00 12 00

12-HR PROBABILITY OF THUNDERSTORMS (LTNG): The probability that a thunderstorm will occur within a 40 km grid box during the 12 hour period ending at the specified time. A thunderstorm is defined as 1 or more cloud-to-ground lightning strikes.