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Yellow weather warning for snow and ice 21/11 15:00 tan 22/11 10:00.
Safety tips for driving in snow and ice>
0300 123 1213
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Rydym yn croesawu galwadau’n Gymraeg. We welcome calls in Welsh.
Rydym yn croesawu galwadau’n Gymraeg. We welcome calls in Welsh.
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M4
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M4
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Junction 24 Coldra
Junction 29 Castleton
Junction 32 Coryton
Junction 35 Pencoed
Junction 43 Llandarcy
Junction 49 Pont Abraham
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M4
J22-23 Prince of Wales Bridge West (Eastbound)
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Toll Plaza East (Westbound)
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M4
Toll Plaza West (Westbound)
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M4
J23 Rogiet (Westbound)
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M4
Magor East (Westbound)
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M4
J23A Magor (Westbound)
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Magor West (Eastbound)
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Wilcrick (Westbound)
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Llanmartin (Westbound)
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M4
Langstone (Westbound)
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A449
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M4
J24 Coldra (Eastbound)
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A449
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M4
Coldra East (Westbound)
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M4
Coldra West (Eastbound)
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M4
Christchurch East (Eastbound)
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M4
Christchurch West (Westbound)
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M4
St Julians (Eastbound)
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M4
St Julians East (Eastbound)
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M4
Caerleon East (Westbound)
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M4
J25 Caerleon (Eastbound)
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M4
J25A Grove Park / A4042 (Eastbound)
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M4
J26 Malpas (Eastbound)
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M4
Malpas Straight (Eastbound)
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M4
Allt-yr-yn (Eastbound)
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M4
High Cross East (Eastbound)
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M4
J27 High Cross (Eastbound)
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M4
Bassaleg (Westbound)
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M4
J28 Tredegar Park (Westbound)
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A48M
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M4
Cleppa Park (Westbound)
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A48M
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M4
Pound Hill (Westbound)
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M4
J29 Castleton (Westbound)
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M4
J29 - J30 Eastbound
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M4
J29 - J30 Michaelston-y-Fedw (Westbound)
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M4
J29 - J30 Began (Westbound)
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M4
J30 Cardiff Gate (Westbound) 1
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M4
J30 - J32 Pontprennau (Westbound)
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M4
J30 - J32 Lisvane (Westbound)
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M4
J30 - J32 Thornhill (Westbound)
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M4
J30 - J32 Rhiwbina (Westbound)
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M4
J32 Pantmawr
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M4
J32 Eastbound Onslip
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M4
J32 West of Whitchurch
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A470
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M4
J32 Tongwynlais Spur
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A470
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M4
J32 Northbound Onslip from A470
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M4
West of J32 Coryton (Westbound)
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M4
J32 Eastbound Offslip
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M4
J33 - 32 Morganstown (Eastbound)
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M4
J32 - J33 Radyr (Eastbound)
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M4
Rhydlafar
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M4
Capel East
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M4
J33 Westbound Approach
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M4
J33 Capel Llanilltern (Westbound)
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M4
West of J33 Capel Llanilltern
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M4
West of J33 Capel Llanilltern
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M4
Groes-Faen
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M4
Miskin
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M4
J35 - J34 Miskin (Eastbound)
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M4
J34 - 35 Pontyclun (Eastbound)
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M4
J35 Pencoed (Eastbound)
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M4
Sarn East
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M4
J36 Sarn (Westbound)
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Sarn West
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M4
Court Colman
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M4
Stormy Down (Westbound)
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M4
J37 Pyle (Westbound)
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M4
Kenfig (Westbound)
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M4
J38 Margam (Eastbound)
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M4
J39 Groes (Eastbound)
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M4
Groes West (Westbound)
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M4
Taibach East (Eastbound)
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M4
J40 Taibach (Westbound)
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M4
Taibach West (Westbound)
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M4
J41 Pentyla (Westbound)
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M4
Sunnycroft (Westbound)
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M4
Briton Ferry East (Eastbound)
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M4
Briton Ferry West (Westbound)
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M4
J42 Earlswood (Eastbound)
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M4
J43 Llandarcy (Eastbound)
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M4
J43 Llandarcy (Eastbound)
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M4
M4 - J43 Llandarcy (West)
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M4
J44 Lon Las (Eastbound)
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M4
Lon Las East (Westbound)
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M4
J45 Ynysforgan (Eastbound)
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M4
J45 - J46 Morriston Hospital (Eastbound)
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M4
J46 Llangyfelach (Eastbound)
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M4
J47 Penllergaer (Eastbound)
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M4
J48 Hendy (Westbound)
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M4
Dyffryn Farm
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M4
J49 Pont Abraham
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J22-23 Prince of Wales Bridge West (Eastbound)
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Toll Plaza East (Westbound)
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Toll Plaza West (Westbound)
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J23 Rogiet (Westbound)
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Magor East (Westbound)
M4
J23A Magor (Westbound)
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Magor West (Eastbound)
M4
Wilcrick (Westbound)
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Llanmartin (Westbound)
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Langstone (Westbound)
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J24 Coldra (Eastbound)
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Coldra East (Westbound)
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Coldra West (Eastbound)
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Christchurch East (Eastbound)
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Christchurch West (Westbound)
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St Julians (Eastbound)
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St Julians East (Eastbound)
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Caerleon East (Westbound)
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J25 Caerleon (Eastbound)
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J25A Grove Park / A4042 (Eastbound)
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J26 Malpas (Eastbound)
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Malpas Straight (Eastbound)
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Allt-yr-yn (Eastbound)
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High Cross East (Eastbound)
M4
J27 High Cross (Eastbound)
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Bassaleg (Westbound)
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J28 Tredegar Park (Westbound)
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Cleppa Park (Westbound)
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Pound Hill (Westbound)
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J29 Castleton (Westbound)
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J29 - J30 Eastbound
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J29 - J30 Michaelston-y-Fedw (Westbound)
M4
J29 - J30 Began (Westbound)
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J30 Cardiff Gate (Westbound) 1
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J30 - J32 Pontprennau (Westbound)
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J30 - J32 Lisvane (Westbound)
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J30 - J32 Thornhill (Westbound)
M4
J30 - J32 Rhiwbina (Westbound)
M4
J32 Pantmawr
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J32 Eastbound Onslip
M4
J32 West of Whitchurch
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J32 Tongwynlais Spur
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J32 Northbound Onslip from A470
M4
West of J32 Coryton (Westbound)
M4
J32 Eastbound Offslip
M4
J33 - 32 Morganstown (Eastbound)
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J32 - J33 Radyr (Eastbound)
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Rhydlafar
M4
Capel East
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J33 Westbound Approach
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J33 Capel Llanilltern (Westbound)
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West of J33 Capel Llanilltern
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West of J33 Capel Llanilltern
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Groes-Faen
M4
Miskin
M4
J35 - J34 Miskin (Eastbound)
M4
J34 - 35 Pontyclun (Eastbound)
M4
J35 Pencoed (Eastbound)
M4
Sarn East
M4
J36 Sarn (Westbound)
M4
Sarn West
M4
Court Colman
M4
Stormy Down (Westbound)
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J37 Pyle (Westbound)
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Kenfig (Westbound)
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J38 Margam (Eastbound)
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J39 Groes (Eastbound)
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Groes West (Westbound)
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Taibach East (Eastbound)
M4
J40 Taibach (Westbound)
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Taibach West (Westbound)
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J41 Pentyla (Westbound)
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Sunnycroft (Westbound)
M4
Briton Ferry East (Eastbound)
M4
Briton Ferry West (Westbound)
M4
J42 Earlswood (Eastbound)
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J43 Llandarcy (Eastbound)
M4
J43 Llandarcy (Eastbound)
M4
M4 - J43 Llandarcy (West)
M4
J44 Lon Las (Eastbound)
M4
Lon Las East (Westbound)
M4
J45 Ynysforgan (Eastbound)
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J45 - J46 Morriston Hospital (Eastbound)
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J46 Llangyfelach (Eastbound)
M4
J47 Penllergaer (Eastbound)
M4
J48 Hendy (Westbound)
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Dyffryn Farm
M4
J49 Pont Abraham
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