Essex and England's Dan Lawrence out for 120 against Lancashire
Opener Ben Compton makes 140 for Kent against Northants
Joe Root out for eight in Yorkshire's game with Warwickshire, Harry Brook makes 82
Somerset and England's Craig Overton takes his 400th first-class wicket
Azhar Ali hits 200 for Worcestershire as he and Jack Haynes share club record stand
Yorkshire 28-0 v Warwicks 244
We have a prompt start at Headingley.
Henry Brookes starts off to Adam Lyth.
Quote MessageCould have been worse for Warwickshire yesterday, but it could have been a whole lot better. They need to restrict Yorkshire to 300 at most."
Clive Eakin, BBC Coventry & Warwickshire
Lancashire v Essex 280-7
Here come batters Dan Lawrence, unbeaten on 100, and Shane Snater.
James Anderson has the ball. Let's play!
A bit of good news for Derbyshire followers - and even better, play is to start on time at Trent Bridge..
Opening batter Billy Godleman signs a one-year contract extension with Derbyshire.
Read MoreNorthants v Kent 286-2
Image source, Getty ImagesOpener Ben Compton believes batting consistency down the order is the key to more victories for Kent this season.
The left-hander will resume on 125 not out against Northants following substantial partnerships with Zak Crawley and Daniel Bell-Drummond, who both passed 50 before getting out.
"As a batting unit we've all had success individually - but getting 280-300 when maybe one guy gets a big score, we're putting a lot of emphasis on a couple of guys getting in together and I think that will translate to bigger totals," he told BBC Radio Kent.
Compton's hundred was his fourth of the season, but he said: "I'm delighted with the start I've made but I'm quite aware that cricket can be a treacherous game, so I'm just trying to keep on an even keel about it."
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Lancashire v Essex 280-7
The light rain has relented and the covers have been removed. We are looking good to start on time.
Somerset 211 v Hampshire 29-0
Image source, Getty ImagesHampshire's Kyle Abbott says finding the right line and length at Taunton is tricky despite bowling out Somerset on the opening day of their Championship game.
"We just did our normal thing, try to control their (scoring) rate and just sit on them for as long as possible," the South African, who took 3-60, told BBC Radio Solent.
"We did find that from back of a length, it was probably doing too much and once you played the line, you missed it by a long way.
"You can caught up with the that, the oohs and ahs, but it's not really effective, and when you go quite full and on the stumps, it's quite easy (for the batters). It's just a game of patience, really."
It's looking more and more likely that we will have some delayed starts at the seven grounds.
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Yorkshire 28-0 v Warwickshire 244
Image source, Rex FeaturesJordan Thompson is trying to avoid putting too much pressure on himself to take wickets after being entrusted with the new ball by Yorkshire.
With so many injuries among their bowlers, he has stepped into the breach and took 3-74 as Warwickshire were bowled out on day one at Headingley.
"I feel like I've bowled well with the new ball the last few weeks - start of the season I didn't get it quite right - without much luck really and it's been frustrating at times," he told BBC Wets Yorkshire Sport.
"I feel that subconsciously I'm putting a bit more pressure on myself with wicket-taking bowlers like Coady (Ben Coad) and Fish (Matt Fisher) missing which isn't helpful for the team because I'm going for a few more runs than I'd like to."
Worcestershire 159-2 v Leicestershire 148
Image source, Rex FeaturesSouth African Wiaan Mulder believes a win is "just around the corner" for Leicestershire despite another poor day at the start of their Division Two game at Worcester.
They changed captains earlier this week - with Callum Parkinson replacing Colin Ackermann - after failing to win any of their first six games, but were bowled out in 52.2 overs at New Road.
"We start well, fight well, then have a really bad session that puts us back. We won’t give up, and a win is around the corner so we’ll just keep going," Mulder told BBC Radio Leicester.
Lancashire v Essex 280-7
Image source, BBC SportAfter a lovely spring afternoon yesterday, the weather here in Manchester has reverted to type. This is not the south of Spain with guaranteed sunshine!
The rain is not heavy but it's enough to get the covers back on. We're still waiting to see if we start on time at 11.00BST.
After first day's play
Division One
Lancashire v Essex 280-7
Northamptonshire v Kent 286-2
Somerset 211 v Hampshire 29-0
Yorkshire 28-0 v Warwickshire 244
Division Two
Middlesex v Durham 256-5
Nottinghamshire 22-0 v Derbyshire 260
Worcestershire 159-2 v Leicestershire 148
The weather gods have been kind to county cricket so far this season - but it looks highly likely that there will be one or two delayed starts today, with the prospect of further interruptions later on. Check out the BBC Weather website for more detailed information.
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There were 1,923 runs scored and 56 wickets taken on the opening day of the current County Championship games.
For those of a numerical bent, that's an average of 34.3393 runs per wicket, which suggests that bowlers had a better day.
There were, though, centuries for Essex's Dan Lawrence and Ben Compton of Kent and both will be able to resume their innings on day two.
Welcome to our coverage. Play is scheduled to start at 11:00.
Image source, Rex Features