Yorkshire fought back with the bat on day two against Durham, while Somerset put Middlesex firmly on the back foot and Division Two's leading pair - Lancashire and Northamptonshire - enhanced their promotion hopes.
7:30pm - Here is a summary of how things stand in all eight LV= County Championship fixtures. We're at the halfway stage in seven, but Surrey versus Derbyshire started today.
Division One
Yorkshire are 182 for three at Scarborough and trail Durham by 391.
After a dramatic day at Lord's, Middlesex are 52 for two in their second innings against Somerset after following on 343 behind.
Warwickshire are 59 behind Sussex on 252 for six at Edgbaston.
Surrey enjoyed the better of the opening day at the Kia Oval, dismissing Derbyhire for 219 before closing on eight without loss.
Division Two
Leaders Lancashire are 39 without loss in their second innings at Southport, 250 ahead of Hampshire.
Northamptonshire posted 453 all out at Wantage Road for a first-innings lead of 212 against Glamorgan.
Gloucestershire are still 189 behind Essex on 211 for nine at Bristol.
At Grace Road, Thilan Samaraweera's unbeaten 99 helped Worcestershire to 265 for five in reply to Leicestershire's 274.
7:09pm - Stumps are eventually pulled up in the game between Gloucestershire and Essex, the hosts' last-wicket pair showing defiance with an unbroken stand of 35 that leaves their side 211 for nine replying to 400.
6:50pm - There will be a round-up of all of today's scores when play finishes at Bristol. Gloucestershire are 192 for nine at present, 208 behind.
6:28pm - We're nearly done for the day now. Lancashire close 250 ahead on 39 without loss, while Middlesex end the day 291 behind on 52 for two.
Gloucestershire are now nine down following Will Gidman's exit at the hands of Topley and Graham Napier's removal of David Payne for a duck. Play could go on at Bristol for a while longer following the rain there this morning.
6:16pm - Wickets remain tough to come by at Scarborough, where Yorkshire have shown grit and determination to reach the halfway stage against Durham on 182 for three, 391 behind. Williamson and Bairstow are unbeaten on 76 and 42.
Tom Milnes is 24 not out as Warwickshire head to the pavilion 59 adrift of Sussex on 252 for six.
Another Tom, Gloucestershire's Tom Smith, departs cheaply at Bristol.
6:13pm - Hall is denied the chance to reach 100 as Muhammad Azhar Ullah is bowled by Dean Cosker to end Northants' first-innings at 453. That heralds the close and Glamorgan will begin day three 212 in arrears.
Worcestershire conclude the day nine behind Leicestershire on 265 for five. Samaraweera will sleep on 99 as Michael Johnson took strike for the final two overs this evening!
STUMPS...Surrey 8-0...Burns 4*, Harinath 0*
— Surrey Cricket (@surreycricket) August 29, 2013
6:05pm - Evans' stunning knock finishes on 137 when he falls to Chris Nash. That leaves Warwickshire 250 for six in reply to 311.
Gloucestershire's Marshall is caught behind off Topley for 54.
Samaraweera has 99 at Grace Road and Hall 91 at Wantage Road...
Lancs 7-0 after 2 overs by Wood and Tomlinson but Reece has survived a dropped catch at first slip from the last delivery of Wood's over
— Lancashire CCC (@LancsCCC) August 29, 2013
5:54pm - Somerset claim their 12th wicket of the day, Joe Denly caught at slip off Craig Meschede to leave Middlesex 19 for two in their second dig.
Replying to Essex's first-innings 400, Gloucestershire slump to 151 for five as Benny Howell is run out. Marshall subsequently moves past 50, having been dropped on 44.
Yorkshire's resistance goes on. Williamson and Bairstow have carried the White Rose to 174 for three from 48 overs.
Northants now lead by more than 200 and will be eyeing an innings win over Glamorgan.
Glamorgan secure maximum bowling points as Murphy is caught behind. Nhants 436/9
— Glamorgan Cricket (@GlamCricket) August 29, 2013
5:45pm - Linley finishes with 4-59 as Derbyshire are dismissed for 219.
Hampshire are all out for 210 as Vince falls to Kerrigan. Lancashire, leading by 211, decide against enforcing the follow-on.
Evans is ticking now. He goes four, six, four from successive Will Beer deliveries to reach 128.
5:40pm - Middlesex really have endured a dismal day. Chris Rogers falls for the second time, lbw to Lewis Gregory for two.
Essex have a long-awaited fourth scalp at Bristol, Ryan ten Doeschate bowling Gidman for 63.
Glen Chapple, who turns 40 in January, is bowling to 16-year-old Hampshire debutant Brad Taylor at Southport.
5:31pm - Hampshire's position grows more perilous as Glen Chapple induces an edge behind from James Tomlinson.
Linley strikes again, having Matt Higginbottom pouched at slip. Derbyshire at least have a batting point.
The alliance between Gidman and Marshall reaches three figures, while Williamson and Bairstow are steadying the ship nicely for Yorkshire.
Laurie Evans celebrates his century against Sussex @LaurieEvans32pic.twitter.com/3Oi33QYRdx
— Warwickshire CCC (@CricketingBears) August 29, 2013
So, it's Deja vu here at Lord's as Rogers and Robson come out to bat again...come on the Middle! #WeHaveFaith
— Middlesex Cricket (@Middlesex_CCC) August 29, 2013
5:24pm - Derbyshire find themselves 197 for eight as Tom Poynton is caught behind off Tim Linley for 37, the second-highest score of the innings thus far.
Thakor grabs his second wicket is as many overs for Leicestershire when removing Joe Leach for a duck. Worcestershire are 35 in arrears on 239 for five.
Vince is able to celebrate a fantastic hundred. He is 101 not out from just 128 balls and without him Hampshire would be in all kinds of bother. They still need 67 to avoid the follow-on with only two wickets intact.
All out for 106!!! Chawla gets Patel for a duck. What a day! 14 overs left today for us to have a pop at them. Come on lads.
— Somerset Cricket (@SomersetCCC) August 29, 2013
Century for Laurie Evans his third in consecutive LV matches at Edgbaston after Ambrose goes for 61 Bears 192-5 trail by 119
— Warwickshire CCC (@CricketingBears) August 29, 2013
5:17pm - Goodness me, ecb.co.uk can barely keep up here...
James Vince clubs successive boundaries off Tom Smith to move into the nineties at Southport.
Chawla bowls Tim Murtagh for his second cheap wicket of the evening and then has Ravi Patel held by Craig Kieswetter to end Middlesex's first innings on 104. That gives Somerset a whopping lead of 345.
Fell is caught behind off Shiv Thakor for 84.
And Michael Reed ends a handy cameo from Copeland worth 34.
5:13pm - Jordan gets rid of Ambrose for 61, ending a stand of 137. In the next over, Evans takes two fours from Chris Nash to bring up a valuable hundred.
Gidman now has 50 for Gloucestershire, while Samaraweera and Fell are into the eighties.
5:09pm - Away from the domestic scene, ENGLAND WOMEN HAVE REGAINED THE ASHES with a five-wicket win at the Ageas Bowl.
5:06pm - Evans' partner, Ambrose, is the day's latest half-centurion. He celebrates with successive fours off Chris Jordan.
Ollie Rayner and James Harris were holding back the Somerset tide at Lord's, but the latter has now departed to Piyush Chawla, meaning Middlesex are 102 for eight.
Northants have full batting points and a lead in excess of 160.
4:56pm - Williamson brings up his first fifty for Yorkshire - and a timely one it is too.
Warwickshire's Evans, meanwhile, is on the verge of a third championship hundred in little more than a month.
4:53pm - Northants have taken 81 from the last 10 overs against Glamorgan and are closing rapidly on maximum batting points.
The restorative partnership between Gloucestershire duo Alex Gidman and Hamish Marshall passes 50.
4:46pm - Kyle Hogg follows up the Kerrigan scalp mentioned below by completing his five-for with the wicket of Matt Coles, who registers a golden duck in his first innings for Hampshire.
Worcestershire's fourth-wicket combination of youth and experience - Tom Fell and Thilan Samaraweera - continue to prosper. They have now put on 150 at Grace Road.
Northants veteran Hall brings up a half-century and has Trent Copeland going well alongside him.
Brilliant! what a delivery from Kerrigan. Floated one up to Wood and the turn did for him, bowled for 1, Hants 155-7
— Lancashire CCC (@LancsCCC) August 29, 2013
That was David Willey's best innings in County Championship cricket #GoSteelbacks
— Northants Cricket (@NorthantsCCC) August 29, 2013
4:39pm - Laurie Evans and Tim Ambrose take their valuable stand for Warwickshire into three figures.
Yorkshire may still be 466 in arrears, but their middle-order looks incredibly strong. Jonny Bairstow has just joined Kane Williamson and is scheduled to be followed by Gary Ballance and Adil Rashid.
Wagg gains belated revenge on Willey, dismissing the left-handed batsman for 81.
4:35pm - We have dismissals now in both games involving the Roses clubs.
Yorkshire skipper Andrew Gale is lbw to Jamie Harrison for 12 at Scarborough, while a fine catch from Paul Horton sends Hampshire's Adam Wheater packing off Simon Kerrigan.
Gareth Batty gets in on the wicket-taking act for Surrey, ousting Peter Burgoyne to leave Derbyshire in deeper trouble at 162 for seven.
4:26pm - The David Willey Express is up and running once again. Northants' in-form all-rounder collects his fifth six to reach 75 from 69 balls. He's having quite a month and his partnership with Andrew Hall has now passed 100.
LV= County Championship leaders Yorkshire move into three figures for the loss of two wickets, but still have much to do.
4:20pm - All of the games have restarted, but there have been no wickets since tea. Who will be first to strike?
England Women need 65 from 60 balls at the Ageas Bowl, with seven wickets in hand, to win the second T20 against Australia and regain the Women's Ashes.
4pm - Evans and Ambrose take a well-earned break at Edgbaston, having put on 87 thus far to help Warwickshire to 134 for four. They trail by 177.
It's tea-time at the Ageas Bowl now too. Lancashire will be much the happier as Hampshire are still 284 behind on 137 for five.
3:52pm - Somerset will not have wanted that session to end, with Middlesex struggling on 61 for seven as they head for tea. Gloucestershire reach the break 44 for three in response to Essex's 400.
3:48pm - David Willey's latest heroics have taken Northants to 309 for six - a lead of 68 - at Wantage Road.
It's also the end of the afternoon session at Scarborough, the Kia Oval, and Grace Road. Yorkshire are 82 for two, Derbyshire 153 for six and Worcestershire 182 for three.
James Vince has reached a fifty for Hampshire.
Willey smashes another 6 to reach his 50 off 51 balls, he is now on 52. Northants are 300 for 6 #GoSteelbacks
— Northants Cricket (@NorthantsCCC) August 29, 2013
3:38pm - Durham break Jaques and Kane Williamson's partnership at Scarborough with the former falling in Scott Borthwick's first over. The duo had added 54 for the second wicket, moving Yorkshire to 72 for two.
Middlesex are now seven down with Gareth Berg trapped lbw by Alfonso Thomas.
Napier takes his second scalp at Bristol, Gareth Roderick departing for 10 with Gloucestershire's score 41 for three.
Tom Fell has reached a half-century for Worcestershire.
3:35pm - Dawid Malan looks to get Middlesex moving with a six off Meschede, but the bowler responds by having him caught behind off his next delivery. Middlesex are in big trouble on 47 for six.
Derbyshire 151-6...Hughes LBW b Ansari 16
— Surrey Cricket (@surreycricket) August 29, 2013
3:22pm - And Surrey are going about things well today. Tim Linley removes Richard Johnson for 23, leaving Derbyshire 139 for five.
Middlesex and Hampshire are also five down, with John Simpson and Sean Ervine both out.
But the bowlers aren't having things their way at Edgbaston at the moment. Laurie Evans has recorded a fifty and his partnership with Tim Ambrose is worth 59.
Thilan Samaraweera has also reached the landmark at Grace Road, where Worcestershire are 162 for three.
3:15pm - Surrey's Steven Davies spoke to ecb.co.uk about what his side need to ensure they avoid the drop to Division Two this season:
WICKET Reece Topley finds the edge as Michael Klinger on 13 looks to drive and James Foster claims his second catch. 21 for 2 after 3.4
— Essex Cricket (@EssexCricket) August 29, 2013
3:06pm - Two balls, two wickets for Meschede. Neil Dexter is also sent on his way and the Somerset bowler is on for a hat-trick...
But John Simpson comfortably survives Meschede's third delivery. What a start for the 21-year-old, though.
3:04pm - Graham Napier has an early breakthrough for Essex as Chris Dent edges behind in the third over. Gloucestershire are 19 for one.
3:02pm - Craig Meschede strikes with his first ball of the match at Lord's, having Sam Robson caught behind. Middlesex are 36 for three.
2:59pm - Yorkshire have responded well to the early wicket, with Phil Jaques hitting five fours to move to 26. The White Rose are 46 for one.
2:50pm - Things continue to go badly for Middlesex today. Joe Denly is ousted by Lewis Gregory for eight, leaving the hosts 28 for two.
Northants trail by five and have lost a fifth wicket, with David Sales falling two runs short of a fifty.
Lyth gone! Doff your cap to Stokes at fourth slip, who takes a screamer diving high to left (two-handed still). Rushworth strikes. 18-1.
— Yorkshire CCC (@Yorkshireccc) August 29, 2013
2:41pm - Gloucestershire have bowled Essex out for 400. Essex reach maximum batting points - but they go no further as first Tom Smith accounts for Tymal Mills and then Greg Smith's career-best 177 is ended by Craig Miles.
2:34pm - Northants lose a fourth wicket as Ben Duckett is caught behind off Dean Cosker, but they trail by just 15 runs with six wickets in hand.
2:28pm - Chris Rogers falls cheaply for Middlesex, caught at slip for eight off Overton, while Hampshire are reduced to 51 for four when Hogg traps Liam Dawson lbw.
Wicket. Chanderpaul is trapped LBW by Edwards for 46. Derbyshire 109-4 (42.3 overs); Johnson 3* and @yozza18 new batsman.
— Derbyshire CCC (@DerbyshireCCC) August 29, 2013
2:21pm - Kyle Hogg strikes for a third time in seven overs to reduce Hampshire to 44 for three, Neil McKenzie the latest man to fall. Essex are 379 for eight, with Monty Panesar out for 22, while Alex Wakely falls for 36 to Michael Reed at Wantage Road.
2:11pm - When Michael Richardson dreamed about hitting his first career hundred, do you reckon he did it with a six? Because that's just what the Durham number eight has done. His second maximum in a 142-ball knock makes him his side's third centurion of the innings. But he is caught out two balls later and Durham are all out for 573 .
2:05pm - Ravi Patel ends with four wickets as he accounts for Jamie Overton to bowl Somerset out for 449.
Two wickets in as many overs for Sussex. Will Porterfield edges Steve Magoffin behind without scoring, leaving Warwickshire 47 for four.
Kyle Hogg follows his dismissal of Adams by having Michael Roberts caught behind.
2pm - Derbyshire are struggling against Surrey. George Edwards has his second scalp of the innings, removing Paul Borrington for 32. Richard Johnson joins Shivnarine Chanderpaul in the middle. Their side, who are 88 for three, could do with a big partnership.
1:55pm - Yorkshire have their ninth wicket as Jamie Harrison is run out for a career-best 35. His partnership with Michael Richardson added 84 runs.
Ian Westwood is caught behind off James Anyon, leaving them 38 for three, while Thomas complies a half-century for Somerset.
1:52pm - The rain break was just a brief one at Bristol, and Smith goes past 150 with a boundary from the first ball he faces following the resumption.
1:46pm - Somerset duo Piyush Chawla and Alfonso Thomas made it through the morning session unbeaten, but the former is out in the opening over after lunch for 112.
Lancashire also strike early in the afternoon, Jimmy Adams trapped lbw for a duck.
1:41pm - We are back under way elsewhere. At the top of Division One Yorkshire are still chasing two wickets to end Durham's first innings, while at the bottom Surrey will look for further breakthroughs against Derbyshire.
1:37pm - That did not last long. The rain returns at Bristol, forcing the players off once again. Greg Smith remains on 149.
We are underway here at Bristol. 20 overs lost in the day Monty Panesar has joined Greg Smith at the crease. 337-7, Panesar with a 4.
— Essex Cricket (@EssexCricket) August 29, 2013
1:04pm - That's lunch in all of our games. Here's how the morning has played out:
Division One
Durham enjoyed a fruitful morning, despite the loss of two wickets, as they reached 524 for eight against leaders Yorkshire at Scarborough.
Somerset are 413 for eight against Middlesex at Lord’s, with Piyush Chawla and Alfonso Thomas taking their unbeaten partnership to 91 runs.
Warwickshire are 19 for two in response to Sussex’s 311 at Edgbaston.
Derbyshire are 75 for two against Surrey on day one at the Kia Oval .
Division Two
Hampshire are five without loss after table-topping Lancashire made 421 at Southport, following a century-stand for the 10th wicket between Simon Kerrigan and Glen Chapple.
Northamptonshire are 180 for two in reply to Glamorgan’s 241 at Wantage Road.
Essex remain 333 for seven at Bristol against Gloucestershire after a washed-out first session.
Worcestershire are 65 for three after Alan Richardson’s hat-trick helped skittle out Leicestershire for 274 at Grace Road.
12:54pm - And another wicket for Leicestershire. This time Daryl Mitchell is rapped on the pads by Hoggard and sent on his way for 23.
12:45pm - A big wicket for Leicestershire as Moeen heads back to the pavilion for 25 after being trapped in front by Ben Raine. Worcestershire are 53 for two.
That last wicket partnership of 114 just fell short of the Southport ground record of 122 set by John Crawley & Alex Barnett in 1994
— Lancashire CCC (@LancsCCC) August 29, 2013
12:40pm - Lancashire's fun finally comes to an end, with James Vince accounting for Chapple. The Division Two leaders' final pair added 114 to take them to 421 all out .
12:35pm - Durham have motored past 500. Yorkshire still need two wickets before it's their turn to bat. Middlesex also need a couple of scalps to remove Somerset, who have reached 400.
There will be no play before lunch, which will be taken at 12:45pm, between Essex and Gloucestershire.
That's a fifty for Richardson off 80 balls with 7x4s. 498-8.
— Yorkshire CCC (@Yorkshireccc) August 29, 2013
12:27pm - Simon Kerrigan records a maiden career fifty to take his 10th-wicket partnership with Glen Chapple to 100. The England spinner took 62 balls to reach the landmark and has hit two sixes.
12:25pm - Magoffin strikes again in his next over. Ateeq Javid also fails to socre a run, leaving Warwickshire nought for two.
12:20pm - That was not the start Warwickshire were wanting. After 17 dot balls, Varun Chopra falls to Steve Magoffin.
12:14pm - A big blow for Derbyshire as Madsen is ousted by George Edwards for 11. Chawla reaches his century for Somerset with a huge six. It was the India international's fourth maximum in his 139-ball knock.
Fifty to Glen Chapple off 51 balls and we are looking for another ball as this one is somewhere on the railway lines! Short ball, hooked
— Lancashire CCC (@LancsCCC) August 29, 2013
12:05pm - Derbyshire are steadily building their innings at the Kia Oval following the early loss of Slater. Paul Borrington and Wayne Madsen have seen them to 35 for one in the 16th over.
Midlesex continue to be frustrated by Somerset's ninth-wicket partnership. Alfonso Thomas and Piyush Chawla have added 57 together, with the latter 10 runs off a century.
11:59am - Yorkshire have an eighth wicket and Liam Plunkett has a first scalp, with Mark Wood caught at cover for 20. Durham are 463 for eight.
4th batting point with Kerrigan running tight single off last ball of 110th ov. Direct hit might have got him but ball went for 4 overthrows
— Lancashire CCC (@LancsCCC) August 29, 2013
11:57am - Chambers has a five-wicket haul on debut as he removes Steve Magoffin for 11 to end Sussex's innings at 311.
11:47am - Matthew Pardoe falls early on for Worcestershire, given out leg before to Hoggard. The in-form Moeen Ali is now at the crease.
Middlebrook departs for 59. Michael Reed has taken both wickets this morning for Glamorgan.
In better news for Northants, Muhammad Azhar Ullah has signed a new contract with the club.
3 fours that over for @mawood33 he is 14no and Richardson 19no. Durham 443-7
— Durham Cricket Club (@DurhamCricket) August 29, 2013
11:40am - Keith Barker and Maurice Chambers strike in successive overs to remove Chris Jordan, who made 91, and Will Beer.
11:25am - Hat-trick! That's a pretty special way to complete a five-for. Richardson dismissed Freckingham with the final ball of his 24th over and Hoggard with the first delivery of his next set of six. The hat-trick ball sees Alex Wyatt trapped lbw and Leicestershire are all out for 274.
Middlebrook has passed 50 for Northants, who trail by 114 with nine wickets in hand.
11:20am - Glamorgan finally make a breakthrough. Peters reached 61 before falling to Michael Reed.
Leicestershire are now nine down - with Matthew Hoggard trapped lbw to Alan Richardson - as are Lancashire, who lose Luke Proctor for 66.
11:14am - Northamptonshire's dominance continues at Wantage Road. Stephen Peters records a fifty before before his opening partnership with James Middlebrook passes the 100 mark.
Leicestershire are eight down against Worcestershire as Ollie Freckingham departs for 26.
11:07am - Yorkshire start day two as they did yesterday, with Ryan Sidebottom striking early. There will be no century for Collingwood, as he is out lbw for 81, but the former England all-rounder does not appear happy with the decision. The White Rose will look to take the last three scalps quickly.
11:04am - An exciting start to the day at the Kia Oval. Ben Slater slapped Chris Tremlett away for four from the first ball of the game, but the England paceman responds three balls later by having the opener caught at first slip.
Start of play will be delayed, raining here at Bristol.
— Essex Cricket (@EssexCricket) August 29, 2013
10:35am - At the Kia Oval, Derbyshire win the toss and elect to bat. There are fifteen points separating basement-side Surrey and third-bottom Derbyshire, with the former having played a game less. This contest promises to be as important in the scrap to avoid relegation as the game at Scarborough is for the destination of the title.
10:30am - Hello and welcome to ecb.co.uk's live coverage of the day's LV= County Championship action. We are into day two in seven games, while Derbyshire against Surrey gets under way in a vitally important clash at the bottom of Division One.
Here's how things stand in the games that started yesterday:
Division One
Second-placed Durham are 406 for six against leaders Yorkshire at Scarborough.
Sussex are 278 for seven against Warwickshire at Edgbaston.
Somerset are 332 for eight against Middlesex at Lord’s.
Division Two
Table-topping Lancashire are 295 for eight against Hampshire at Southport.
Northamptonshire are 85 for nought in reply to Glamorgan’s 241 at Wantage Road.
Essex are 333 for seven at Bristol against Gloucestershire.
Leicestershire are 270 for seven versus Worcestershire at Grace Road.