Notts declare on 393-8, leaving Yorkshire a target of 463
Tom Lammonby hits 104 not out as Somerset defeat Durham
Jack Carson takes 5-26 as Sussex beat Hampshire
Worcestershire need to score 327 to beat Warwickshire
Charlie Allison scores 140 for Essex, who set Surrey 417 to win
Matthew Kuhnemann takes 6-53 as Glamorgan beat Middlesex by 10 wickets
Kent's Ben Compton out for 156 against Derbyshire, who enforce the follow on
Cameron Green hits unbeaten 118 for Gloucestershire against Northants
Keaton Jennings makes 112 but Lancashire lose by an innings to Leicestershire
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Durham v Somerset 150-3 (trail by 115 runs)
A wide from Ben Raine brings up Somerset's 150.
The visitors have ticked over very impressively this morning and will fancy their chances at this stage of the match with over a day and a half still to play.
115 more runs still required.
Robson lbw Kuhnemann 66 (Glamorgan 383 v Middlesex 155 & 109-2)
Sam Robson plays around Matthew Kuhnemann's arm ball and is leg before. It was a very entertaining 58-ball knock with 13 fours, but Middlesex are still 119 behind as he departs.
Hants 154 & 165 v Sussex 297 & 23-1
Michael Carberry
Former England batter on BBC Radio 5 Sports Extra
It's a professional performance from Sussex in all departments.
They've played the game as it should be played, they've read the conditions well.
They've been tough when they've needed to be, they've been flamboyant when they've need to be and they've bowled pretty well.
From a Hampshire point of view, there's a bit more head-scratching. They've got to find answers pretty quickly.
Surrey 279 v Essex 217 & 257-3
Image source, Rex FeaturesTom Westley may have a word with young Charlie Allison.
He flashes at an away-swinger from Tom Lawes and is fortunate not to get a nick.
Allison, though, redeems himself with an off-drive for four from the final ball of the over to bring up a 50 partnership and he moves to 25.
Derbyshire 587-5 dec v Kent 261-4
Kent earned a batting point when Jack Leaning pushed David Lloyd into an off-side gap for a single.
He is now 10 not out, with Ben Compton on 137 - they trail by 326.
Worcs v Warwicks 114-4 (lead by 160 runs)
More good bowling from Jacob Duffy, who catches the inside edge but it somehow misses Ed Barnard's off stump and the ball goes for four.
The next ball is shorter and wider from Duffy and Barnard flashes one past gully for another boundary.
By hook or by crook, the runs are beginning to flow for the visitors.
Hants 154 & 165 v Sussex 297 & 23-1
Image source, Rex FeaturesTom Haines hits the winning runs clipping Liam Dawson off his legs to deep midwicket and the two Sussex men scamper back for a second to register a nine wicket victory.
This has been a comprehensive win for John Simpson's men and the captain, wicketkeeper, batsman has had a man of the match performance.
HIs 106 in the first innings put Hampshire on the back foot at the halfway point and they never got forward from that stage on.
Jack Carson has made best use of the deflation in the Hampshire ranks in the second innings taking 5-26 but it was as much Henry Crocombe's 4-27 (including 3-1 in six balls) which turned the tide.
It is 20 points, a third victory of the campaign and a first away from Hove for Paul Farbrace's outfit capping a great return to the top flight following promotion.
Surrey 279 v Essex 217 & 252-3
Tom Lawes overpitches and Tom Westley clips it unerringly through mid-wicket for four. He is 34 not out and Essex lead by 190.
Worcs 181 v Warks 227 & 104-4
Jim Dale
BBC Hereford and Worcester
It's been a profitable over for Warwickshire.
It seems silly but 12 runs is plenty in the context of this game.
It's good cricket from Ed Barnard, they're keeping to scoreboard ticking and keeping the pressure on the bowlers.
Yorks 159 v Notts 228 & 297-4 (lead by 366 runs)
It is not raining hard but it is enough for the covers to be wheeled on and the players to be wheeled off.
Notts are leading by plenty but this weather interruption could well prompt a discussion in the dressing room about a target.
The weather forecast around the country on day four is not perfect and Notts probably already have enough to put a Yorkshire win out of reach.
Glamorgan 383 v Middlesex 155 & 100-1
Nick Webb
BBC Radio Wales
Middlesex have surprised everyone by coming out all guns blazing after following on 228 runs behind, with Sam Robson and Max Holden racing along at a run a ball for the first hour in an opening stand of 98.
Robson launched a savage assault on the seamers James Harris and Andy Gorvin bowling from the Cathedral Road end, who were unable to find the lengths that served them so well yesterday as the former England man raced to a 40-ball 50.
It looked like T20 had come early, but as Glamorgan switched their attack round, it was Aussie spinner Matt Kuhnemann who made the breakthrough as Holden was well taken at short leg by Asa Tribe.
Both teams know that today could be the final day with plenty of rain in Monday’s forecast.
Worcs v Warwicks 103-4 (lead by 149 runs)
Too straight from Jacob Duffy and Sam Hain comfortably tucks the ball away to the boundary to bring Warwickshire's 100 up.
They lead by 149 runs with six wickets still remaining.
Carter c Albert b Dawson 7 (Sussex 10-1, target 23)
Oli Carter falls to a classic bit of off spin from Liam Dawson.
He is brought forward by the length trying to defend, but it dips on him, turns and kisses the edge.
Toby Albert takes the catch at slip.
Somerset 135-3 (trail by 130 runs)
Somerset's Tom Lammonby then works one in to the leg side for a couple and raises his bat for a well earned 50 off 70 balls.
Lovely innings from the left-hander.
Glamorgan 383 v Middlesex 155 & 100-1
Middlesex have reached three figures at Sophia Gardens but have lost a wicket - Max Holden superbly caught at short leg by Asa Tribe from the bowling of Australia spinner Matthew Kuhnemann for 35.
The 100 came up as replacement Luke Hollman nudged Kuhnemann to third man for a couple of runs.
Leics 457 v Lancs 206 & 37-2
With due respect to what still has to come for Lancs you suspect both sides know that this partnership between Keaton Jennings and Marcus Harris holds the key.
These two certainly have the ability and concentration levels required to bat all day but, conversely, the hammer blow of removing them could weigh heavy in the Lancs dressing room.
Gloucestershire have lost their first wicket of the day at Northampton, with Matt Taylor caught and bowled by Calvin Harrison for 36 - they are 222-5, with Cameron Green 19 not out.
Keaton Jennings and Marcus Harris - who passed 800 runs in the first innings - are trying to rebuild for Lancashire following the loss of those two quick wickets, they are 35-2 against Leicestershire.
Kent have progressed to 248-4 against Derbyshire, in sight of a first batting point, with Ben Compton still there on 128.
J Rew c Lees b Ackermann 31 (Durham v Somerset 128-3, trail by 137)
Oh, what a cheap wicket to give away - James Rew what were you thinking?
Rew, who has looked so comfortable since coming to the crease, lobs one straight to Alex Lees off the bowling of Colin Ackermann to give Durham a sniff.
That was the perfect example of "throwing your wicket away."
Surrey 279 v Essex 217 & 235-3
There is some away swing there for Tom Lawes, but Charlie Allison watches the ball closely and drives smoothly to the extra cover boundary.
After a couple of early alarms, he is starting to settle in.
Webster b Duffy 5 (Worcs v Warwicks 86-4, lead by 132)
Oh what a beauty! Worcestershire have got another!
The ball jags back at Beau Webster, but replays show it stays very low and it's unplayable as Jacob Duffy claims his off stump.
The hosts are still alive in this derby.