That omits Mystique's ongoing series, which lasted about 24 issues (or one issue longer than DAKEN: DARK WOLVERINE). ROGUE had an ongoing series that ran a year (12 issues) back in the start of the decade, which is better than SPIDER-GIRL or HERC latest lately.
This is a difficult one to peg. Storm is easily one of Marvel's best known heroines. The only others I'd consider near her in popularity and public awareness are She-Hulk, Ms. Marvel and Invisible Woman. Of those four, only two have been featured in film, and that includes Storm. During MARVEL VS. DC in the 90's, Storm was the heroine Marvel decided to pit against Wonder Woman; even in it's sequel, DC/MARVEL: ALL ACCESS, they did so again when the X-Men battled the JLA in that story. On the other hand, I'd argue that the best time to have tried launching a Storm ongoing series was about 20 years ago. Chris Claremont clearly adored her and made her the central focus of his X-Men stories. Would he have been willing to launch an ongoing with her after he left X-MEN quickly on? Who knows. But the lack of a WW level solo heroine in Marvel's roster is a chink in their armor that they've yet to seal up. Whether they're treated well or not, DC makes sure to have half a dozen female led series on the shelves, and quite a few of them are now Top 20 sellers. X-23 has been in two TV shows and a video game and her book was canned faster than DAKEN was.
It has been argued that Marvel usually treats it's heroines more respectfully, and at the very least has more female creators and staff in their comics, from not just writers and artists but inkers, assistant editors, editors, and so on. Yet DC's still the one that keeps them in print, even if they're strippers like VOODOO. The last volume of MS. MARVEL made it to 50 issues just barely, but that's been it. And while SHE-HULK has over 100-150 issues of a solo series if you combine all the issues, the expansion of the Hulk universe has left her in the dust; editorial is clearly more interested in Red She-Hulk now. Unlike those two, Storm has never been considered a solo heroine and has always been on teams; mostly X-related but briefly the Fantastic Four with her husband T'Challa. Rather than raise her profile, that marriage has done a lot to diminish her appearances until this year, and did nothing to make Black Panther more popular.
Should Storm get an ongoing series? I've seen far less popular and more bizarre characters get ongoing series - DOCTOR VOODOO, anyone? But, I doubt it would last a year. And if she DID get her own ongoing series, Marvel wouldn't succeed in drawing in many female readers if they utilized art angles similar to the posted image - where within a 3 panel double page splash, Storm thrusts her breasts and ass at the camera in two of them. Marvel is owned by Disney, a company that has often succeeded in selling to girls, yet they don't tap that experience to try to broaden their audience any. Whatever fangirls Marvel has, I'd imagine they're more invested in the X-Men universe than any other franchise.