Invest 90 on the Weather Underground
Invest 90 is it's name and we'll have many Invests over the year, 91's 92's, etc. I always wondered what the numbering denotes or even the term Invest . This is the best I could come up with from a weather related message board.
These "Invests" are usually first listed on the Navy's weather page.... and are numbered 90-99 and have a letter attached, identifying the basin in which are they are located. L- Atlantic. E- East Pacific. W- West Pacific., etc...etc...etc... Once an Invest is declared, the NHC starts running model data on that particular system."
Tropical weather on the west coast of Mexico