Invest 99l Path. The national hurricane center is now advising that invest 99l's chances of developing into a tropical system over the next five days is at 80 percent, according to a. Similarly, in the central pacific, they are invest 90c, invest 91c, up.

The only difference in the eastern pacific is that they are labeled with an e instead of an l, so invest 90e, invest 91e and so on. At 10:50 a.m., the hurricane center said there’s a 60% chance for a tropical depression to form as a tropical wave — designated as invest 99l — in the.