Blackpool closed to within a point of the final Championship play-off place after a vital win at Glanford Park.
They went ahead in strange fashion as Andrew Wright diverted into his own net but Grant McCann equalised from the spot after he was fouled by Ian Evatt.
Blackpool continued to press and loanee Seamus Coleman weaved through before flicking in, and substitute DJ Campbell ghosted in to head the third.
Campbell tapped in a fourth and a late Gary Hooper goal was mere consolation.
Scunthorpe remain in danger towards the foot of the table, still only five points above third-bottom Crystal Palace.
They had plenty of possession in the first half but created little in terms of clear-cut chances and it was Blackpool who looked the more purposeful going forward.
Stephen Dobbie curled an effort from the edge of the area that was smartly tipped away by Joe Murphy but the visitors were rewarded for their attacking endeavours as they took the lead midway through the opening half.
The floated cross from the right by Coleman eluded striker Ben Burgess but was inadvertently met by the on-rushing Wright who, much to his dismay, produced a perfect finish into the corner that even Murphy could not keep out.
Dobbie tried his luck from distance when he saw Murphy off his line but the ball drifted wide in the swirling breeze.
After the interval Scunthorpe were much improved but there was a suggestion of handball from McCann as he burst into the box.
He calmly slotted in the penalty but Coleman soon put Blackpool ahead again with his mazy run and neat finish from eight yards.
Campbell headed in at the far post after being picked out by Hameur Bouazza, and tapped in his second two minutes later after the influential Charlie Adam's shot was saved by Murphy.
A minute later substitute Hooper marked his returned from injury by prodding home Garry Thompson's drilled cross from two yards out, but it was the Blackpool fans who were singing in the rain.
Scunthorpe manager Nigel Adkins:
"With 77 minutes gone a horrendous bit of defending by ourselves gives them a goal. Then obviously at 2-1 we've got to try and get a goal and by doing that we've exposed ourselves far too much in the middle of the park and been far too open.
"The last 13 minutes of the game it's gone beyond us. It would have been a good point.
"It's going to go to the Forest game, we've said that. We've had an opportunity at home, we've been very good at home this season, to get something from it.
"But Blackpool are an excellent side, they thumped Swansea last week by 5-1 they play really good exciting football and have a player in Charlie Adam who is going to be courted by a lot of teams in the Premiership, he's an outstanding player."
Blackpool boss Ian Holloway:
"Are we good enough to reach Wembley? Can I grow a wig and dance in high heels? Of course we can, we'll have to keep this level of performance up and then we'll have to see if it's good enough.
"But if somebody had given me this position at the start of the season I would have bitten their arm off.
"It was a fantastic game of football, both sides were nervy as there was so much at stake. I had some exciting options on the bench and the substitutions I was able to make made all the difference.
"I was concerned when they equalised as it gave them the momentum, but we snatched it back off them and then we used the space that they left us well."
90:00+5:17 The final whistle goes and the game is over.
90:00+2:59 Inswinging corner taken right-footed by Josh Wright played to the near post, clearance made by Keith Southern.
90:00+1:15 Free kick awarded for a foul by David Vaughan on Josh Wright. Direct free kick taken by Kenny Milne.
90:00+0:35 The assistant referee flags for offside against Ben Burgess. Free kick taken by Joe Murphy.
88:35 Shot by David Vaughan. Grant McCann gets a block in. Outswinging corner taken by Charlie Adam.
86:44 Charlie Adam delivers the ball.
86:23 Substitution Josh Wright comes on in place of Sam Togwell.
85:43 Garry Thompson provided the assist for the goal.
85:43 GOAL - Gary Hooper:Scunthorpe 2 - 4 Blackpool Gary Hooper finds the back of the net with a goal from close range to the bottom left corner of the goal. Scunthorpe 2-4 Blackpool.
85:39 Garry Thompson produces a cross,
84:45 GOAL - Dudley Campbell:Scunthorpe 1 - 4 Blackpool Goal scored by Dudley Campbell from inside the six-yard box low into the middle of the goal. Scunthorpe 1-4 Blackpool.
84:21 Charlie Adam takes a shot. Blocked by Andrew Wright.
83:10 Outswinging corner taken from the left by-line by Grant McCann, clearance by Ian Evatt.
81:53 Assist on the goal came from Hameur Bouazza.
81:53 GOAL - Dudley Campbell:Scunthorpe 1 - 3 Blackpool Dudley Campbell finds the back of the net with a headed goal from inside the box. Scunthorpe 1-3 Blackpool.
81:44 The ball is crossed by Hameur Bouazza,
80:59 The ball is crossed by Charlie Adam, Kenny Milne makes a clearance.
79:42 Long range shot from Charlie Adam misses to the left of the goal.
79:03 Keith Southern delivers the ball, Marcus Williams gets a block in. Inswinging corner taken from the right by-line by Charlie
78:15 Substitution Matthew Sparrow goes off and Gary Hooper comes on.
77:24 Substitution Dudley Campbell joins the action as a substitute, replacing Gary Taylor-Fletcher.
76:22 GOAL - Seamus Coleman:Scunthorpe 1 - 2 Blackpool Seamus Coleman gets on the score sheet with a goal from inside the box to the top right corner of the goal. Scunthorpe 1-2
75:03 The assistant referee signals for offside against Paul Hayes. Alex Baptiste takes the indirect free kick.
74:34 Gary Taylor-Fletcher takes a shot. Joe Murphy makes a save.
73:35 Hameur Bouazza is ruled offside. Joe Murphy takes the free kick.
71:47 The ball is swung over by Hameur Bouazza.
70:49 The referee blows for offside against Garry Thompson. Alex Baptiste restarts play with the free kick.
69:13 Effort from 30 yards by Matthew Sparrow. Save made by Matthew Gilks. Grant McCann takes a short corner, Matthew Sparrow crosses
the ball, blocked by David Vaughan. Inswinging corner taken by Grant McCann, Headed effort from deep inside the area by Garry
Thompson misses to the right of the target.
66:42 Hameur Bouazza fouled by Andrew Wright, the ref awards a free kick. Joe Martin takes the direct free kick.
63:09 Substitution David Vaughan replaces Billy Clarke.
63:09 Substitution Stephen Dobbie leaves the field to be replaced by Hameur Bouazza.
62:50 Centre by Garry Thompson.
61:29 Stephen Dobbie has an effort from just inside the box that misses to the left of the target.
60:24 Outswinging corner taken by Grant McCann from the left by-line played to the near post.
59:40 Ben Burgess sends in a cross, comfortable save by Joe Murphy.
59:17 Sam Togwell challenges Joe Martin unfairly and gives away a free kick. Matthew Gilks takes the free kick.
57:17 Unfair challenge on Charlie Adam by Matthew Sparrow results in a free kick. Charlie Adam crosses the ball, Headed effort on
goal by Ian Evatt from inside the penalty box misses to the right of the goal.
56:37 Free kick awarded for an unfair challenge on Seamus Coleman by Donal McDermott. Alex Baptiste takes the direct free kick.
54:40 Short corner taken by Grant McCann, Paul Hayes crosses the ball, save made by Matthew Gilks.
54:17 Shot by Charlie Adam from 25 yards. Comfortable save by Joe Murphy.
53:11 Garry Thompson crosses the ball, Ian Evatt gets a block in. Grant McCann takes a inswinging corner from the right by-line
played to the near post, Ben Burgess manages to make a clearance.
52:52 The ball is delivered by Gary Taylor-Fletcher, Joe Murphy makes a save.
52:40 Centre by Seamus Coleman, clearance made by Grant McCann.
51:10 Substitution Donal McDermott joins the action as a substitute, replacing Martyn Woolford.
50:52 Charlie Adam takes a shot from 25 yards. Save by Joe Murphy.
50:25 Grant McCann delivers the ball, clearance made by Joe Martin.
49:52 Free kick taken by Grant McCann.
49:52 Booking Ian Evatt receives a caution.
49:42 Free kick awarded for an unfair challenge on Grant McCann by Ian Evatt.
48:40 The ball is swung over by Stephen Dobbie, clearance by Andrew Wright.
47:45 GOAL - Grant McCann:Scunthorpe 1 - 1 Blackpool Grant McCann scores a power penalty. Scunthorpe 1-1 Blackpool.
46:48 Foul by Ian Evatt on Grant McCann, Penalty awarded.
46:27 Gary Taylor-Fletcher produces a cross, clearance by Michael Raynes.
45:01 The match restarts for the second half.
45:00+1:59 The players leave the pitch at half time.
45:00+1:09 Garry Thompson takes a shot from 18 yards. Save by Matthew Gilks. Corner from the right by-line taken by Grant McCann, Alex
Baptiste manages to make a clearance.
45:00+0:54 The official flags Ben Burgess offside. Joe Murphy takes the indirect free kick.
44:52 A cross is delivered by Paul Hayes, Charlie Adam gets a block in. Grant McCann takes the inswinging corner, Garry Thompson
takes a shot. Comfortable save by Matthew Gilks.
43:46 The ball is swung over by Stephen Dobbie, Michael Raynes gets a block in.
42:25 Centre by Paul Hayes, blocked by Gary Taylor-Fletcher. Short corner taken by Grant McCann, The ball is swung over by Paul
40:35 Free kick awarded for a foul by Paul Hayes on Alex Baptiste. Direct free kick taken by Alex Baptiste.
40:05 Billy Clarke is caught offside. Joe Murphy takes the free kick.
39:20 Foul by Paul Hayes on Seamus Coleman, free kick awarded. Free kick taken by Charlie Adam.
37:09 Charlie Adam crosses the ball in from the free kick.
37:09 Booking The referee shows Andrew Wright a yellow card for unsporting behaviour.
37:02 The referee penalises Andrew Wright for handball.
36:29 The ball is crossed by Keith Southern, clearance made by Andrew Wright.
36:12 Shot from 20 yards by Sam Togwell. Blocked by Alex Baptiste.
35:18 The official flags Ben Burgess offside. Free kick taken by Joe Murphy.
34:50 Grant McCann challenges Keith Southern unfairly and gives away a free kick. Alex Baptiste takes the free kick.
34:12 Effort from range distance by Stephen Dobbie goes wide of the right-hand upright.
32:26 Foul by Gary Taylor-Fletcher on Sam Togwell, free kick awarded. Kenny Milne takes the free kick.
30:55 Kenny Milne gives away a free kick for an unfair challenge on Ben Burgess. Free kick crossed by Charlie Adam, Martyn Woolford
makes a clearance. Inswinging corner taken by Billy Clarke, Joe Murphy makes a save.
29:38 The ball is swung over by Martyn Woolford.
28:43 Charlie Adam takes a shot. Save by Joe Murphy.
26:08 The referee blows for offside against Paul Hayes. Matthew Gilks takes the free kick.
25:45 The offside flag is raised against Ben Burgess. Joe Murphy takes the indirect free kick.
25:29 The official flags Garry Thompson offside. Matthew Gilks takes the free kick.
24:48 Joe Martin delivers the ball.
21:52 GOAL - Andrew Wright:Scunthorpe 0 - 1 Blackpool Andrew Wright scores an own goal from 6 yards. Scunthorpe 0-1 Blackpool.
19:58 Billy Clarke delivers the ball, Header by Ben Burgess from deep inside the penalty area misses to the left of the goal.
17:42 The official flags Garry Thompson offside. Matthew Gilks takes the free kick.
14:44 Michael Raynes fouled by Ben Burgess, the ref awards a free kick. Kenny Milne takes the free kick.
10:58 Stephen Dobbie has a curled shot. Save made by Joe Murphy. Inswinging corner taken left-footed by Billy Clarke from the right
by-line, Alex Baptiste takes a shot. Joe Murphy makes a comfortable save.
10:01 The referee gives a free kick against Seamus Coleman for handball. Free kick crossed by Grant McCann.
7:27 Grant McCann takes a inswinging corner from the right by-line to the near post, Charlie Adam fouled by Martyn Woolford, the
ref awards a free kick. Matthew Gilks takes the direct free kick.
6:02 The ball is sent over by Charlie Adam, Header by Gary Taylor-Fletcher from deep inside the penalty area misses to the left
of the target.
5:09 The official flags Paul Hayes offside. Indirect free kick taken by Matthew Gilks.
4:54 Free kick awarded for an unfair challenge on Sam Togwell by Ben Burgess. Free kick taken by Grant McCann.
4:30 Garry Thompson produces a drilled left-footed shot from 25 yards. Blocked by Charlie Adam.
3:43 Corner taken by Billy Clarke from the right by-line, Garry Thompson makes a clearance.
1:07 Outswinging corner taken from the left by-line by Grant McCann, Matthew Gilks makes a save.
0:38 Paul Hayes produces a cross, Alex Baptiste makes a clearance.
Correction - 0:00 The game begins.
0:00 The game gets underway.
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