Most of these posts were from before the sales numbers came in for Storm #2.
Now that we have those numbers, we can take a look at all female-led solo titles of 2014 and compare them to Storm's numbers.
JANUARY 2014
20 Black Widow 1 $3.99 Marvel
53,879
63 Black Widow 2 $3.99 Marvel
31,260
FEBRUARY 2014
24 Ms Marvel 1 $2.99 Marvel
50,286
36 She-Hulk 1 $2.99 Marvel
41,894
70 Black Widow 3 $3.99 Marvel
28,127
MARCH 2014
32 Captain Marvel 1 $3.99 Marvel
44,248
42 Ms Marvel 2 $2.99 Marvel
38,357
78 Black Widow 4 $3.99 Marvel
27,378
82 She-Hulk 2 $2.99 Marvel
26,675
APRIL 2014
32 Elektra 1 $3.99 Marvel
47,676
55 Ms Marvel 3 $2.99 Marvel
37,140
79 Captain Marvel 2 $3.99 Marvel
28,008
83 She-Hulk 3 $2.99 Marvel
27,398
84 Black Widow 5 $3.99 Marvel
27,055
MAY 2014
59 Ms Marvel 4 $2.99 Marvel
34,839
85 Elektra 2 $3.99 Marvel
26,612
88 Black Widow 6 $3.99 Marvel
26,136
89 Captain Marvel 3 $3.99 Marvel
26,057
93 She-Hulk 4 $2.99 Marvel
25,543
JUNE 2014
61 Ms Marvel 5 $2.99 Marvel
33,795
87 Black Widow 7 $3.99 Marvel
25,423
90 She-Hulk 5 $2.99 Marvel
24,736
95 Captain Marvel 4 $3.99 Marvel
24,062
103 Elektra 3 $3.99 Marvel
22,773
JULY 2014
46 Storm 1 $3.99 Marvel
47,566
86 Ms Marvel 6 $2.99 Marvel
36,041
121 Black Widow 8 $3.99 Marvel
24,555
126 Captain Marvel 5 $3.99 Marvel
23,666
127 She-Hulk 6 $2.99 Marvel
23,562
152 Elektra 4 $3.99 Marvel
19,125
AUGUST 2014
66 MS MARVEL #7 $2.99 MAR
32,866
88 STORM #2 $3.99 MAR
25,268
90 BLACK WIDOW #9 $3.99 MAR
24,885
102 SHE-HULK #7 $2.99 MAR
22,883
111 CAPTAIN MARVEL #6 $3.99 MAR
21,221
131 ELEKTRA #5 $3.99 MAR
17,209
======
BY TITLE:
======
BLACK WIDOW
20 Black Widow 1 $3.99 Marvel
53,879
63 Black Widow 2 $3.99 Marvel
31,260 (-42.0% <-- actually 41.98%)
70 Black Widow 3 $3.99 Marvel
28,127
78 Black Widow 4 $3.99 Marvel
27,378
84 Black Widow 5 $3.99 Marvel
27,055
88 Black Widow 6 $3.99 Marvel
26,136
87 Black Widow 7 $3.99 Marvel
25,423
121 Black Widow 8 $3.99 Marvel
24,555
90 Black Widow 9 $3.99 Marvel
24,885
MS. MARVEL
24 Ms Marvel 1 $2.99 Marvel
50,286
42 Ms Marvel 2 $2.99 Marvel
38,357 (-23.7%)
55 Ms Marvel 3 $2.99 Marvel
37,140
59 Ms Marvel 4 $2.99 Marvel
34,839
61 Ms Marvel 5 $2.99 Marvel
33,795
86 Ms Marvel 6 $2.99 Marvel
36,041
66 Ms Marvel 7 $2.99 Marvel
32,866
SHE-HULK
36 She-Hulk 1 $2.99 Marvel
41,894
82 She-Hulk 2 $2.99 Marvel
26,675 (-36.3%)
83 She-Hulk 3 $2.99 Marvel
27,398
93 She-Hulk 4 $2.99 Marvel
25,543
90 She-Hulk 5 $2.99 Marvel
24,736
127 She-Hulk 6 $2.99 Marvel
23,562
102 She-Hulk 7 $2.99 Marvel
22,883
CAPTAIN MARVEL
32 Captain Marvel 1 $3.99 Marvel
44,248
79 Captain Marvel 2 $3.99 Marvel
28,008 (-36.7%)
89 Captain Marvel 3 $3.99 Marvel
26,057
95 Captain Marvel 4 $3.99 Marvel
24,062
126 Captain Marvel 5 $3.99 Marvel
23,666
111 Captain Marvel 6 $3.99 Marvel
21,221
ELEKTRA
32 Elektra 1 $3.99 Marvel
47,676
85 Elektra 2 $3.99 Marvel
26,612 (-44.2%)
103 Elektra 3 $3.99 Marvel
22,773
152 Elektra 4 $3.99 Marvel
19,125
131 Elektra 5 $3.99 Marvel
17,209
STORM
46 Storm 1 $3.99 Marvel
47,566
88 Storm 2 $3.99 Marvel
25,268 (-46.9%)
So as you can see, Storm's second-issue drop off is the worst of the bunch. Worse yet than Elektra's and we can all see how her numbers are in the tank, dropping below the 20k mark with issue #4.
However, we don't know for sure if Storm's numbers will get as bad as Elektra's. They could always get better... Even if that's a historical improbability, and even if they did get better, it might only be a little better and only temporarily.
At the moment, however, Storm's doing about the same business as other superheroines (aside from Ms. Marvel), in the 20k-29k. It's really too early to say her series is doing badly (albeit that's just my opinion; you can interpret the current numbers any way you wish). I'd wait for the numbers for issue #3 first, at the very least.
Ms. Marvel's the only one who's still doing well.