Never Caught OutIndependent UK guide Crisis

Local · Wales

Cardiff

Official links and figures for Cardiff, in one place. Always check the official source before you act.

Pilot page, not listed in searchData gathered 1 November 2026Welsh principal area · ONS code W06000015 · Welsh name: Caerdydd

In an emergency

If someone’s life is in danger, call 999. For a power cut, call 105. This page lists official sources and figures. It does not say how safe or risky anywhere is.

Council pages

Power cuts

Network operator (not your supplier):

Our log of the National Grid Electricity Distribution live fault feed recorded 0 unplanned cuts here from 1 November 2026, 14:53 GMT to 1 November 2026, 16:36 GMT.

Ofgem’s figures for the whole licence area, April 2024 to March 2025, counting cuts of 3 minutes or longer:

  • South Wales (National Grid Electricity Distribution): 42.1 interruptions per 100 customers and 27.5 minutes without power per customer (2023/24: 46.3 and 26.1)

Great Britain as a whole: 39.7 and 35.1. These are area averages, not figures for Cardiff alone. About this dataset

Flooding

Natural Resources Wales: 4 flood alert areas and 14 flood warning areas overlap Cardiff. Waters named: Coast, River Ely, River Rhymney, River Taff.

Warning areas include: Coast at the Wentlooge Levels in the Cardiff Area; River Ely at Ely Bridge; River Ely at Ely in Cardiff; River Ely at St. Fagans; River Rhymney at Began; River Rhymney at Industrial area near Rumney Bridge; River Rhymney at Llanrumney; River Taff at Cardiff City; and 6 more.

Natural Resources Wales: flooding

Where the nearest A&E departments are

The nearest major emergency departments to the centre of each of the largest built-up areas, by straight-line distance (as the crow flies, not by road):

  • Cardiff: University Hospital Of Wales (0.8 km); The Royal Glamorgan Hospital (15.0 km); The Grange University Hospital (21.0 km). Nearest other emergency departments or minor injury units: Ysbyty Ystrad Fawr (15.1 km); Royal Gwent Hospital (15.9 km).
  • St Fagans: University Hospital Of Wales (6.2 km); The Royal Glamorgan Hospital (10.5 km). Nearest other emergency departments or minor injury units: Ysbyty Ystrad Fawr (16.4 km); Royal Gwent Hospital (21.7 km).
  • Pentyrch: The Royal Glamorgan Hospital (6.8 km); University Hospital Of Wales (7.8 km). Nearest other emergency departments or minor injury units: Ysbyty Ystrad Fawr (12.2 km); Royal Gwent Hospital (21.4 km).

Never Caught Out is not affiliated with the NHS. For medical help that is not an emergency, contact NHS 111 Wales. About this dataset

Water supply

Water company for this area:

Phone and broadband coverage

Ofcom’s predictions of normal coverage in Cardiff, January 2026. They are not live outages and not a guarantee for any address.

  • Homes and businesses with 4G indoors from all four networks: 98%; from none: less than 0.1%.
  • Outside homes and businesses, 4G from all four networks: 100%; from none: 0%.
  • Land area with outdoor 4G from all four networks: 99%; from none: 0%.
  • Premises that can get gigabit-capable broadband: 94%.
  • Premises that cannot get decent broadband (10 Mbit/s down, 1 Mbit/s up) from a fixed line or fixed wireless: 4 (0%).

Check an address on Ofcom’s coverage checker · Phones when the network is down: how to reach 999 · Your right to request decent broadband (Ofcom) · About this dataset

Coast

Yes. About 23 km of the boundary is shoreline at mean high water.

Local radio

BBC Radio Wales · BBC Radio Cymru

Weather warnings

UK-wide Met Office warnings in our log: 0 since 1 November 2026, 14:53 GMT.

Emergency planning partnership

South Wales Local Resilience Forum: its community risk register lists the emergencies planned for here.

Census 2021: planning prompts

  • Households with no car or van: 26.0%
  • Residents aged 65 or over: 14.5%
  • Households of one person aged 66 or over: 11.2%

Largest built-up areas

  • Cardiff

    NRW warning areas naming Cardiff: Coast at the Wentlooge Levels in the Cardiff Area; River Ely at Ely in Cardiff; River Taff at Cardiff City; River Taff at Pontcanna Fields, Cardiff; River Taff at Radyr Court Road, Cardiff.

  • St Fagans
  • Pentyrch
  • Broadstreet Common

Neighbouring councils

Caerphilly, Newport, Rhondda Cynon Taf, Vale of Glamorgan

Useful wherever you live

How these figures were gathered

  • Council links were opened on 1 November 2026 and each page mentioned its topic. A person has not yet checked them.
  • Power cut counts are incidents only, not homes affected or how long cuts lasted.
  • An area counts as overlapping if at least 1% of it lies inside the council boundary.
  • A&E distances are straight lines from the centre point ONS gives for each built-up area to the centre of the hospital’s postcode. Travel distances and times will be longer.
  • Phone and broadband figures are Ofcom’s council-level predictions for January 2026. Mobile coverage uses Ofcom’s signal thresholds; an operator’s network counts if its predicted signal meets them.
  • Coastline is our measurement: the part of the ONS boundary (clipped to mean high water) not shared with another council, rounded. Tidal river edges are not counted as coast.
  • Census figures are planning prompts, not risk scores. The household figure uses 66 and over, as the census tables do.
  • Built-up areas are the largest by land area, up to four, from ONS Built-up Areas 2022. Flood areas listed under a town are those whose official name includes it; a missing area does not mean a street will not flood.

Publishing check

Before a local page is shown to search engines it has to pass every rule below on 14 nights in a row. Until then it stays online for anyone who follows a link, but search engines are asked not to list it. Last run: 1 November 2026, 16:38 GMT. Result: Not yet.

Rules from our methodology. Differences are counted against the other 19 pilot councils.
RuleNeededThis pageResult
Fields filled12 or more of 1814 of 18Pass
Facts that set this page apart6 or more6 (fields 5, 10, 11, 13, 14, 15)Pass
Official council links3 or more, each opened and checked by a person3 different links opened automatically; 0 checked by a person yetNot yet: waiting for a person to check
Length of our own records90 days or more for power cuts, floods or weather0 days (logging began 1 Nov 2026)Not yet
Text not too similar to other pagesSimilarity below 0.5Highest 0.26 (median 0.20)Pass
Figures not identical to another pageNo identical setUniquePass
Unusual figures checkedAny figure far outside the national range checked by a personNot checked yet: we do not have national figures to compare againstNot checked yet
Stable over timePasses every rule on 14 nights in a row0 of 14 nightsNot yet

Fields we have filled: Council name and ONS code, Resilience forum, Electricity network operator, Power cuts logged, Flood alert and warning areas, Met Office warnings logged, Water company, Council emergency planning page, Gritting or winter service page, Where rest centres are announced, Census 2021 planning figures, Local BBC radio, Coastal, Neighbouring councils. Not filled yet: Flood warnings logged, Strategic roads and closures, Sandbag page, Local note.

Official sources we used

  1. RIIO-2 Electricity Distribution annual report 2024 to 2025: supplementary data file (Open Government Licence) (Ofgem)
  2. 105: the power cut helpline (Energy Networks Association)
  3. National Grid Electricity Distribution: power cuts (National Grid Electricity Distribution)
  4. Flood Warning Areas (Open Government Licence; contains Natural Resources Wales information © NRW and database right) (Natural Resources Wales via DataMapWales)
  5. Flood Alert Areas (Natural Resources Wales via DataMapWales)
  6. Flooding (Natural Resources Wales)
  7. List of A&E type 1 departments (April 2026) (NHS England)
  8. Emergency departments: performance against waiting times targets (sites reporting in September 2026) (Welsh Government (StatsWales))
  9. Postcode locations (OS OpenData licence; contains Ordnance Survey, Royal Mail and National Statistics data) (postcodes.io)
  10. Dŵr Cymru Welsh Water: In your area (Dŵr Cymru Welsh Water)
  11. Connected Nations update: Spring 2026, mobile and fixed coverage data (Open Government Licence) (Ofcom)
  12. Find your water company (regions served) (CCW (Consumer Council for Water))
  13. BBC Radio Wales: listen live (BBC Sounds)
  14. BBC Radio Cymru: listen live (BBC Sounds)
  15. UK weather warnings (Met Office)
  16. South Wales Local Resilience Forum: community risk register (South Wales Local Resilience Forum)
  17. Local resilience forums: contact details (Cabinet Office)
  18. Census 2021 TS045: Car or van availability (ONS via Nomis)
  19. Census 2021 TS007A: Age by five-year age bands (ONS via Nomis)
  20. Census 2021 TS003: Household composition (ONS via Nomis)
  21. Built-up Areas (December 2022) GB boundaries (ONS Open Geography Portal)
  22. Local authority district boundaries and codes (ONS Open Geography Portal)

We link to official pages so you can check the latest advice yourself. If something here differs from what an official source says now, follow the official source. Where we quote or adapt official text, it contains public sector information licensed under the Open Government Licence v3.0.