6:38pm - Here's a round-up of all the LV= County Championship scores at the end of a rain-hit day:
Middlesex are 16 for one in reply to Yorkshire's 390 after day two at Lord's.
Warwickshire, who lost the toss, are 31 for one at the Emirates Durham ICG, responding to Durham's 267 all out.
At Trent Bridge, Derbyshire were inserted by Nottinghamshire and reached 245 for two.
There was no play on the opening day between Sussex and Surrey at Arundel.
Leicestershire are 47 for two in reply to Northamptonshire's 567 for seven declared after day two at Grace Road.
Having been invited to bat by Lancashire at Chelmsford, Essex are 268 for eight.
Glamorgan, who chose to bat at Canterbury, are 155 for four against Kent.
An opening-day washout provided frustration for Hampshire and Gloucestershire at the Ageas Bowl.
6:17pm - Perhaps opening partner Ian Westwood has felt the sharp end of Chopra's ambition, with Onions remaining in the attack and dismissing him for five in his next set of six. That will be the final action of the day.
6:11pm - Varun Chopra has certainly taken an interesting approach to batting out a tricky mini-session. The England Lions opener hammered a six and a four off Graham Onions' third over and currently has 24 from 22 deliveries. Warwickshire are 31 for nought.
6:03pm - Warwickshire have made a solid start to their reply, reaching 15 without loss in quick time.
5:40pm - Keith Barker is the latest Warwickshire bowler to claim a third wicket, bowling Wood for 22 to leave Durham 267 for nine.
The left-armer then has Chris Rushworth caught behind first ball to bring the innings to an end and finish with 4-41.
5:35pm - That did not take long. They are done for the day at the home of cricket too.
5:33pm - There will be no more play today at Trent Bridge or Chelmsford. We are still awaiting an update from Lord's.
5:24pm - The ninth-wicket pair of Wood and Graham Onions are prolonging Durham's first innings and a boundary from the latter earns a second batting point.
5:14pm - Stumps have also been drawn at Grace Road, while this wonderfully worded update from @yorkshireccc on Twitter suggests an abandonment will not be long in coming at Lord's: Raining hard now and the day's play is in the propinquity of its ultimate termination.
@kentcricket on Twitter: Play has been abandoned for the day. Fingers crossed for sunshine tomorrow!
4:55pm - This is very frustrating. Bad light has now forced a halt at Chelmsford, which leaves Durham and Warwickshire as the only teams currently playing.
The Bears have an eighth wicket in that match, Richardson falling lbw to Rikki Clarke for 26.
4:50pm - Sajid Mahmood may be frustrating Lancashire, but the Red Rose have picked up the key scalp of Foster, who has gone lbw to Simon Kerrigan for 82.
At the Emirates Durham ICG, Michael Richardson and Mark Wood have collected a first batting point for the hosts.
There is no other action at present.
@yorkshireccc on Twitter: Still gloomy and we're off for bad light here. Covers on too. Prospects of a restart are none too clever.
4:40pm - Kent and Glamorgan are off again unfortunately, the visitors to Canterbury having reached 155 for four in their first innings, and only one over was possible at Trent Bridge before the rain returned.
Meanwhile, Gloucestershire have confirmed Dan Christian - an overseas signing for this year's Friends Life t20, will make his debut for the club in the three-day tour match against Australia A that starts a week on Friday.
@LancsCCC on Twitter: Mahmood not going to die wondering. He's playing his shots as we've come to enjoy over the years. Just not today though. 251-7 in the 74th.
4:22pm - Wayne White traps Graham Napier lbw for 28 to leave Essex 226 for seven. James Foster is unbeaten on 70 in that game.
A big wicket arrives at the Emirates Durham ICG as half-centurion Ben Stokes plays on to Jeetan Patel, who now has 3-40. Durham have slipped from 163 for three to 198 for seven.
4:11pm - They are back on at Durham, Canterbury and Chelmsford but rain has delayed a restart at Grace Road and there is similar frustration at Lord's and Trent Bridge.
3:56pm - The afternoon sessions have now ended at the Emirates Durham ICG and Trent Bridge. Here are all the tea-time scores, with no play having been possible at Arundel or the Ageas Bowl:
Middlesex are 15 for one in reply to Yorkshire's 390 on day two at Lord's.
Durham, who won the toss at the Emirates Durham ICG, are 194 for six against Warwickshire.
Derbyshire are 240 for two at Trent Bridge, having been inserted by Nottinghamshire.
Leicestershire are 47 for two on day two at Grace Road, in reply to Northamptonshire's 567 for seven declared.
Essex, who were invited to bat by Lancashire at Chelmsford, are 210 for six.
Glamorgan chose to bat against Kent and are 134 for four at Canterbury.
3:46pm - It is also time for tea at Grace Road, where Leicestershire have rallied to reach 47 for two from 10 overs, and Chelmsford.
Play is set to resume at 4pm in the match between Kent and Glamorgan.
Stokes has a fifty for Durham and would appear to have a vital role to play as his side attempt to recover from the loss of four afternoon wickets.
Chanderpaul now has 78 from 81 balls.
3:37pm - Sam Robson and Chris Rogers have been the most prolific opening pair in county cricket so far this summer, but the former will not make a substantial score today. He has been caught in the slips off Steven Patterson for five, leaving Middlesex 12 for one.
Essex have a first batting point to their name at Chelmsford, skipper James Foster having moved on to 58.
3:25pm - Durham lose Paul Collingwood and Phil Mustard in successive overs, which means they are now 170 for six against Warwickshire.
Leicestershire have also suffered a double blow, openers Niall O'Brien and Greg Smith falling to David Willey and Lee Daggett respectively inside the first four overs of the Foxes' first innings.
Chanderpaul follows Madsen to a half-century for Derbyshire and subsequently overtakes his captain despite having faced just over half as many deliveries.
3:18pm - Unfortunately, they have been forced to follow Arundel's lead at the Ageas Bowl and Hampshire versus Gloucestershire is also a first-day washout. Grim down south!
3:15pm - Yorkshire are all out for 390, Liam Plunkett the last man to go lbw to Ollie Rayner for 26. Rayner, Harris and Murtagh have three wickets apiece and that's a fine effort from the MIddlesex attack after Yorkshire lunched on 331 for five.
3:10pm - Derbyshire are staunchly resisting this mid-afternoon trend of wickets tumbling. Wayne Madsen and Shivnarine Chanderpaul have added 95 for the third wicket, the former having brought up 50. The visitors are 196 for two at Trent Bridge.
The teams are off the field for rain at Canterbury with Glamorgan 134 for four. An early tea will be taken.
@Yorkshireccc on Twitter: Sidebottom st Simpson b Rayner 9 and Yorkshire are 387-9
2:59pm - Northamptonshire have declared at Grace Road having amassed 567 for seven declared. Middlebrook fell to left-armer Rob Taylor for 84 and skipper Alex Wakely decided it was best to give Leicestershire an awkward 40 minutes or so before tea. Crook was left three runs shy of a belligerent half-century.
2:55pm - Essex have enjoyed a far better time of things post-lunch versus Lancashire but, after going six, dot, four against Simon Kerrigan, ten Doeschate holes out to long-on where Simon Katich gratefully accepts to dismiss the dangerman for 77.
2:51pm - Kent seamer Calum Haggett has a third of the innings and his team's first of the afternoon session after Marcus North edged through to Geraint Jones four short of a half-century. Glamorgan are 133 for four.
2:48pm - Bad news from Arundel where, following an inspection, play has been abandoned for the day between Surrey and Sussex without a ball being bowled.
2:44pm - Steven Crook is piling on the misery for Leicestershire who, let's not forget, elected to field yesterday morning. The all-rounder has raced to 43 from 32 balls since Coetzer's dismissal, including consecutive sixes off Jigar Naik. His partnership with Middlebrook is worth 76 in 12 overs.
2:30pm - After a trying four sessions, Middlesex are making short work of Yorkshire after lunch. Tim Murtagh joins Harris on three wickets by removing Hodd caught and bowled. The visitors are 362 for eight.
2:21pm - Northants may have lost Coetzer, but their run accumulation continues against Leicestershire. James Middlebrook becomes the third man to reach fifty - can he follow Coetzer and Andrew Hall to three figures? The score is 496 for six.
2:15pm - That's fifty for Ryan ten Doeschate, who is leading Essex's recovery impressively against Lancashire. The hosts still have plenty to do on 132 for five having been asked to bat by Glen Chapple, but ten Doeschate's partnership with James Foster for the sixth wicket is now worth 60.
2:11pm - The wait will go on at least a little while longer for Sussex and Surrey's players at Arundel. An inspection is slated for 2:45pm.
2:07pm - Kyle Coetzer's magnificent innings is finally at an end at Grace Road. Having batted 503 minutes and 402 balls for 219, containing 36 fours and a six, the Northamptonshire opener edged Alex Wyatt behind to gloveman Niall O'Brien
2pm - Yorkshire were probably eyeing 500-plus when Rashid and Andrew Gale were in tandem, but the visitors might have to re-adjust their sights now Harris has his tail up and HQ. Andy Hodd and Liam Plunkett are the not out batsmen
1:50pm - We're back under way in all the games already started, while rain continues to dominate at Arundel and Southampton, and there's been a clatter of post-lunch wickets.
Derbyshire duly brought up their hundred but have lost Bily Godleman caught behind off Andre Adams for 28.
James Harris has his second wicket at Lord's, trapping Adil Rashid in front for an attractive 72 that contained 12 fours.
At Durham, Ben Stokes is in after Keaton Jennings perished on 33, caught at fine-leg off the bowling of Keith Barker, who boasts impressive figures of 2-16 from nine overs.
@LancsCCC on Twitter: For any of you loving a lunch time stat: Luis Reece became the 655th Lancs player in first-class cricket when he made his debut today
1:05pm - Here are the lunchtime scores:Division One
Yorkshire are 331 for five versus Middlesex on day two at Lord’s.
Durham, who won the toss, are 93 for two against Warwickshire at the Emirates Durham ICG.
Derbyshire are 99 for one facing Nottinghamshire, who won the toss, at Trent Bridge.
There is no play so far between Sussex and Surrey at Arundel.Division Two
Northamptonshire are 448 for five against Leicestershire on day two at Grace Road.
Essex are 96 for five versus Lancashire, who won the toss, at Chelmsford.
Glamorgan, who won the toss, are 83 for three facing Kent at Canterbury.
There is no play so far between Hampshire and Gloucestershire at the Ageas Bowl.
12:50pm - Coetzer scores his first senior double-century as Northants pile on the runs. They are 349 for five.
Charlie Shreck has Stewart Walters caught behind for 38, making Glamorgan 79 for three.
12:45pm - Gale has his second century in two championship innings, arriving with a four off Gareth Berg. The Yorkshire captain and Rashid have also shared a hundred partnership. Soon after, however, Ollie Rayner traps Gale in front for 103.Hughes falls for 59, pulling Harry Gurney high to mid-off. Derbyshire are 89 for one.
Lunch is being taken at the Ageas Bowl where rain has prevented play.
12:40pm - Essex are in further trouble at 72 for five as Procter makes Ben Foakes, who drove aerially to cover, his second wicket in two overs.Derbyshire’s Hughes goes to a fifty with four off Paul Franks.
@derbyshireccc on Twitter: Hughes (49*) is dropped by Patel at slip off Gurney. And then Godleman (18*) is dropped again by Patel next delivery. Derbyshire 69-0 (21)
12:25pm - Adil Rashid brings up a fifty soon after Yorkshire pass 300 for the loss of four wickets. Andrew Gale has 93.
Rikki Clarke snares Scott Borthwick for 36, leaving Durham 62 for two.
Procter exacts revenge on Shah, who is bowled for 30 as Essex slip to 62 for four.
@Yorkshireccc on Twitter: Bit of luck for Rashid. Two fours through and over slips off Berg. Rashid now 37no and Gale is in the nineties. Yorks 290-4
12:15pm - Owais Shah scores 10 from a Luke Procter over to take Essex past 50. At three down, they still have lots of rebuilding to do.
Durham and Glamorgan also raise a half-century, respectively for the loss of one and two wickets.
12pm - Billy Godleman and Chesney Hughes share a half-century stand for Derbyshire’s first wicket versus Notts.Lunch is due to be taken at 12:30pm between Sussex and Surrey at Arundel with no prospects of play in the morning session.
11:40am - Andrew Hall has a third century of the season, which he reaches with a four off Alex Wyatt. He falls soon after to Nathan Buck, having added 175 with centurion Kyle Coetzer. That makes Northants 375 for five.
11:35am - Hogg has a second wicket for Lancashire, Tom Westley going lbw for two, and Glen Chapple then gets in on the act by having Hamish Rutherford caught behind for five. Essex are 13 for three.Haggett also makes a second breakthrough, bowling Ben Wright for five. Glamorgan are therefore 19 for two.Yorkshireccc on Twitter: Rashid dropped by Dexter at first slip off Murtagh when on 0. Straightforward chance. Yorkshire 222-4
11:15am - Middlesex make a second breakthrough today, doubling their total yesterday, as Tim Murtagh traps new man Joe Sayers in front for one. Yorkshire are 220 for four.At Chelmsford Jaik Mickleburgh edges Lancashire’s Kyle Hogg to third slip to depart for four, all Essex’s runs at that point.
Glamorgan also lose a first wicket with Will Bragg caught behind for six off Kent’s Calum Haggett. The visitors are 10 for one.
11:05am - Defending Division One champions Warwickshire make an ideal start at Durham, Keith Barker having Mark Stoneman caught behind for nought with the second ball of the match.
@Middlesex_CCC on Twitter: WICKET! Great start as Harris has Lees out to the first ball of the morning as he is caught behind by Simpson for 100 - 215-3
11am - The toss is further delayed at Arundel but, aside from a similar situation at the Ageas Bowl, play begins at the other games.
10:40am - Here’s what is happening round the grounds:
Yorkshire, who won the toss, are 215 for two versus Middlesex following the opening day at Lord’s.
Durham choose to bat first against Warwickshire at the Emirates Durham ICG.
Nottinghamshire opt to bowl first facing Derbyshire at Trent Bridge.
The toss between Sussex and Surrey at Arundel is delayed until 11am by rain.Division Two
Northamptonshire, who lost the toss, are 320 for four against Leicestershire after the first day at Grace Road.
Lancashire opt to bowl first versus Essex at Chelmsford.
Glamorgan choose to bat first facing Kent at Canterbury.
The toss between Hampshire and Gloucestershire at the Ageas Bowl is delayed by rain.
10:30am - While waiting for news of the tosses at the contests starting today, why not read our team news preview of those fixtures?
10:25am - In the matches beginning yesterday Kyle Coetzer hit 150 not out as Division Two leaders Northamptonshire reached 320 for four versus Leicestershire at Grace Road and in Division One Alex Lees’ unbeaten 100 aided Yorkshire’s 215 for two against Middlesex at Lord’s.
10:20am - Good morning and welcome to ecb.co.uk’s live blog coverage of today’s LV= County Championship action. Two games enter day two while six start.