There's stop-start traffic for seven miles on the M4 Westbound between J23A B4245 (Magor Services) and J25A A4042 / B4596 (Newport/Grove Park Roundabout).
The A4232 Butetown Tunnel is closed because of industrial action between Cardiff Bay retail park and the Queensgate Roundabout. There's congestion Southbound to A48 Cowbridge Road West (Culver House Cross).
The A48 is partially blocked and there's queueing traffic because of an overturned lorry and spillage of diesel and hydraulic oil at the B4487 Newport Road / Cypress Drive (St Mellons Roundabout). It's on the roundabout.
There's stop-start traffic for eight miles after an earlier accident on the M4 Westbound between J24 A48 / A449 (Coldra) and J25 A4042 / B4596 (Caerleon)
There's congestion on M4 Second Severn Crossing to Toll Booths. Travel time is between 45 and 60 minutes. All lanes have been re-opened.
Two lanes are blocked and there's queueing traffic for four miles after an accident on the M4 Westbound between J24 A48 / A449 (Coldra) and J25 A4042 / B4596 (Caerleon). There's congestion to J23a B4245 (Magor Services).
All lanes are now open and traffic is easing after an accident causing queues on the M4 in both directions between J44 A48 / A4230 / B4291 (Llansamlet) and J45 A4067 / B4603 (Ynysforgan).
One lane is blocked on the A483 Wrexham Bypass Northbound and there's queueing traffic after an accident near J5 A541 Mold Road / Summerhill Road (Gwersyllt).
One of the main routes into Morriston Hospital is closed.
Pant Lasau road will be shut in both directions between the A48 Clasemont Road junction and Heol Maes Eglwys, because of a burst water main.
South Wales Police say it will remain closed for several hours whilst repairs are carried out.
Strong winds on the A55 Britannia Bridge between J8A A5 Ffordd Caergybi / Holyhead Road (Llanfair P.G.) and J9 A487 (Treborth) mean there's a 30 mph speed limit.
Two lanes are closed and there's queueing traffic for five miles because of an overturned lorry on the M4 Westbound between J37 A4229 (Pyle / Porthcawl) and J38 A48 (Margam). There's congestion to J36 A4061 / A4063 (Bridgend / Sarn Service Area).