Play abandoned for the day in the final after a thunder storm hits New Road
The Blaze reached 53-4 after 9.3 overs against Southern Vipers after winning the toss and choosing to bat
The Blaze were unbeaten in the group stage, including win over Vipers
Defending champions Southern Vipers beat Thunder by 18 runs in semi-final
Vipers posted 191-6 after Wyatt (76) and Bouchier (56) put on 108 for first wicket
Morris top scored with 36 as Thunder fell short on 173-8
Thunder 69-3 - target 192
What a catch. Georgia Elwiss throws a hand into the sunshine and plucks a super grab at backward point after Fi Morris had slashed Linsey Smith trying to add to her impressive start.
A big breakthrough. Ellie Threlkeld joins Deandra Dottin who has 14 from 8.
Thunder 61-2 - target 192
Georgia Elwiss takes the seventh over.
Fi Morris keeps ticking over with a two and a couple of singles and Deandra Dottin alternates the strike with a single of her own and finishes the over with an almighty six over deep mid-wicket. A monster hit. She barely moved her feet. The ask is a hair over 10 an over. That blow has kept the Thunder in touch with it.
Thunder 50-2 - target 192
Vipers were 50-0 from the powerplay.
Linsey Smith takes a wicket and only conceded two singles off her over. Fine effort.
Thunder 48-2 - target 192
Chloe Hill
Southern Vipers player on BBC Local Radio
I think Thunder will be happy to see Deandra Dottin coming in. Another hard-hitting batter coming to the crease.
Thunder 48-2 - target 192
Linsey Smith gets the breakthrough. Liberty Heap tries to go inside out across mid-wicket but doesn't connect and sees her stumps clattered.
Fi Morris is still there on 29. Deandra Dottin joins her.
Thunder 48-1 - target 192
Image source, Getty ImagesFi Morris perfects the scoop which escaped her team-mate Emma Lamb and gets four to the fine leg fence off Mary Taylor.
She gets lucky with a colossal swipe and streaky edge away to third which takes her past 200 runs for the season.
Another nine off the over. Thunder have more runs at this stage than the Vipers did.
Thunder 39-1 - target 192
Chloe Hill
Southern Vipers player on BBC Local Radio
Not a bad start for both teams. One wicket for the Vipers but 39 runs for Thunder in the powerplay so far and they'll be happy with that.
This wicket of Fi Morris is going to be crucial for this innings.
Thunder 39-1 - target 192
Liberty Heap slashes unconvincingly over deep extra cover where the ball just about beats Georgia Elwiss to the ropes. The next ball is cracked commandingly through the covers for another four.
Fi Morris gets down low to pull the last ball off the over to the deep square leg boundary for a third four of the over. 16 off it and just like that the Thunder are ahead of the asking rate.
Thunder 23-1 - target 192
Fi Morris cuts Anya Shrubsole with a lot more authority this time. Short and wide from the experienced Vipers bowler, who sends the next delivery into a similar location which allows Morris to cash in once again. 10 off the over. That's what they need.
Morris has 16 from 10 deliveries.
Charlie Dean comes on for over number four.
Thunder 13-1 - target 192
Fi Morris finds the ropes but will have her heart in her mouth as the ball flew very close to Freya Kemp's fingers on the way.
Four singles off the over mean it's eight off the over... which still isn't enough given the mammoth total required.
Anya Shrubsole is back for the third over.
Thunder 5-1 - target 192
Linsey Smith will take the second over for the Vipers.
Fi Morris got off the mark with a single to keep strike, Liberty Heap is yet to face a ball. That mis-timed scoop from Emma Lamb has left the Thunder up against it already, as if the target wasn't imposing enough.
Thunder 4-1 - target 192
Rita Green
BBC Local Radio commentator and former Berkshire player
What a bizarre dismissal. Emma Lamb would love to play that one again.
That's the best possible start for the Vipers.
Thunder 4-1 - target 192
Image source, Getty ImagesEmma Lamb is fit to bat after receiving treatment earlier on and cracks the opening delivery from Anya Shrubsole to the rope for four, but she's holed out to Ella McCaughan from just the third ball and the Vipers have a breakthrough.
Fi Morris joins Liberty Heap at the crease.
Southern Vipers 191-6 (20 overs) v Thunder
The umpires and players are heading back onto the field at New Road, so I will hand over to Alex Hoad, who is going to guide you through Thunder's run chase.
Southern Vipers 191-6 (20 overs) v Thunder
Thunder's highest total of this year's tournament is the 165-5 they made in the win against South East Stars in Blackpool on 4 June.
Emma Lamb top-scored on that occasion with 63 off 38 balls, and you feel Thunder might need something similar from their England international batter to get them close to the Vipers' total.
Southern Vipers 191-6 v Thunder
Kevan James
BBC Radio Solent commentator
It's a very, very good total, it could have been more, but I think, having been put in to bat, they'll be happy with this.
Southern Vipers 191-6 v Thunder
Image source, Getty ImagesSouthern Vipers post their highest total of this year's competition at just the right time, and will shortly look to defend a total of 191-6 as they bid to reach the Charlotte Edwards Cup final against The Blaze.
Openers Danni Wyatt (76) and Maia Bouchier (56) got Vipers off to a flying start and, having been 108-0 in the 11th over, they might feel it could have been a few more, but Liv Bell's four wickets pegged them back in the closing overs.
Even so, it's a daunting chase for Thunder to follow.
Southern Vipers 186-6 v Thunder
Georgia Elwiss smashes another couple of fours off Sophie Ecclestone but is then caught at point by Deandra Dottin.
Southern Vipers 176-5 v Thunder
Georgia Elwiss sweeps Liv Bell for a four to spoil the Thunder bowler's final over but Bell will end with 4-36 - it's been a pivotal contribution for her team to keep them in it.
Six balls left, to be bowled by Sophie Ecclestone.
Southern Vipers 168-5 v Thunder
Kevan James
BBC Radio Solent commentator
This is a good score, but it could have been more and the Vipers will want a few more.
Thunder have fielded well here, they are working hard.