A full day's play expected in Chester-le-Street - provided the ground isn't waterlogged, of course. Cloudy, but 5°C higher than yesterday's temperatures. Essex's plan ought to be to knock up another 150 to 200 before lunch and then declare, to have any hope of winning. Odds must be firmly in favour of a draw.
I doubt that Surrey will need more than 1 session to take the necessary 5 Hampshire wickets. Hants will do well to make them bat again.