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Dane Vilas hits 124 and Luke Wells 97 as Lancashire build a big lead against Middlesex.
Nottinghamshire close on 177-5 after following on against Kent at Canterbury.
No play possible on day three at Edgbaston between Warwickshire and Northamptonshire.
Sussex declare on 344-9. Leicestershire close on 221-3, chasing 499 to win.
Glamorgan close on 120-2 after following on against Yorkshire in Cardiff.
Derbyshire close on 398-9 in reply to Gloucestershire's 377 at rain-hit Bristol.
Northants 250, Warwickshire 142-4
Image source, Ged Scott - BBC SportMeanwhile, at Edgbaston . . .
There is finally some hope.
It has stopped raining, umpires Rob Bailey and Neil Pratt have ambled out to take a first look of the day - and the two Edg-hogs are out there making things a little less damp.
Kent 446 v Notts 265-9
It's all over! Notts are all out 181 behind.
Brett Hutton is stuck in the crease with a flashing drive outside off and he edges to the keeper.
Kent have enforced the follow on.
Yorkshire 500, Glamorgan 175-7
No sooner do Yorkshire make a breakthrough than they they are off for a rain break.
Kent 446 v Notts 265-9
Brett Hutton blocks the fifth ball and farms the strike with one off the last.
Hmm. Aron Nijjar is staying on - this time with the new ball.
Brett Hutton cuts and misses outside off.
A shorter ball is cut for one to backward point.
Fernando tries to heave the last ball away and gets a bottom edge into the turf.
Yorkshire 500, Glamorgan 172-7
Glamorgan half-centurion Kiran Carlson is the first wicket of the day in Cardiff.
And a fourth for Matthew Revis.
Kent 446 v Notts 263-9
Nathan Gilchrist drops short and Brett Hutton pulls through mid wicket for four.
Could Notts save the follow on here? They need 296 in total.
Second new ball is taken now, mid over.
Kent 446 v Notts 259-9
Asitha Fernando continues to attack the spin, driving Aron Nijjar over his head and down the ground for four.
Great shot. It perfectly dissected mid on and mid off.
The next ball is heaved over mid wicket but the 10th wicket pair don't take the run. Hutton to face Gilchrist next.
Kent 446 v Notts 255-9
Nathan Gilchrist bounces Brett Hutton, who ducks.
The gentle whirring of the floodlights can be heard as they prepare to beam onto the ground.
Maiden over.
Sussex 262 & 278-6 v Leicestershire 108
Shot of the morning from Fynn Hudson-Prentice as he unfurls a glorious stroke to the cover boundary.
Hudson-Prentice moves to 34 and the lead goes up to 432.
Surely Sussex can't need too many more runs before sending the visitors in.
Glos 377 v Derbys 261-6
It's still gloomy here in Bristol.
An early lunch will be taken.
No news on pitch inspections and resumptions so far.
Kent 446 v Notts 255-9
Brett Hutton plays back to Aron Nijjar and takes a single to backward point.
Wow! Aron Nijjar tosses the ball up and Asitha Fernando is down on one knee, smashing the ball over mid wicket for six.
That's 250 and a batting point for Notts.
The sixth ball is wide of leg stump and four leg byes end the over.
Kent 446 v Notts 244-9
We've had 18 overs so far this morning! Unbelievable.
Change of bowling. Nathan Gilchrist is coming on.
Gilchrist squares Fernando up and hits the pads first ball. Not out.
A play and miss outside off. Two slips in.
The fourth ball is left and bounces just over middle stump.
An eventful maiden over.
Sussex 262 & 268-6 v Leicestershire 108
And there is the first wicket of day three on the south coast!
Tom Scriven gets one on the money as he wraps James Coles on the pads.
That was pretty adjacent and a good shout. Still, a fine contribution from Coles.
Sussex 262 & 268-5 v Leicestershire 108
Into the 15th over of the morning at Hove.
34 runs scored and no wickets down. The cricket is meandering a bit at the moment.
Kent 446 v Notts 244-9
250 could be on here.
Brett Hutton heaves Aron Nijjar over long on for four.
He gets an edge blocking the second ball but it flies wide of first slip.
Two more runs slapped through point on the back foot.
Northants 250, Warwickshire 142-4
Image source, Ged Scott - BBC SportMore puddles on the outfield at Edgaston than there are press in the press box.
And the small handful of press that are here are the only people in sight.
It is still raining. And, although we are yet to get any official announcement and there are optimistic noises about the rain stopping by noon, there clearly won't be any play in Birmingham this morning.
Image source, Ged Scott - BBC SportKent 446 v Notts 238-9
Time for Asitha Fernando to face Yuzvendra Chahal.
He goes for the sweep second ball and that goes for four!
All along the ground in front of square, too.
Fernando is playing the flighted ball late, defending with a straight bat.
Kent 446 v Notts 234-9
Brett Hutton goes for a big heave, swinging to mid on but can't get the ball away.
The second ball is cut off the back foot and picked up just inside the third man boundary for two.
Aron Nijjar is tossing the ball up and Hutton leaves.
The last ball is cut to third man for two more.
Kent 446 v Notts 230-9
End of a wicket-taking over from Aron Nijjar and now Brett Hutton will face Yuzvendra Chahal.
Hutton plays it from the crease, pushing the ball into the off side for one and Fernando is beaten outside off.
He blocks out the rest of the over and Notts still need 20 more for a batting point.
Yorkshire 500, Glamorgan 160-6
A quiet start to the day in Cardiff following a delayed start to play by half an hour.
Just a handful of runs before a risky first legside boundary of the day from Dan Douthwaite off Matthew Revis which went far too close to fielder Ben Cliff for comfort.
The injury sub is on 26, with overnight half-centurion Kiran Carlson on 54.