Álava · 3.476 inhabitants · 1.969 buildings analysed one by one

Oyón-OionClimate risk in its neighbourhoods, streets and rivers, today and in 2050

We have scored the climate risk of the 1.969 buildings in Oyón-Oion using Cadastre data, satellite imagery and climate projections, and added it up by area, street and watercourse. Water is the biggest factor: 425 homes are in a flood zone.

1→5tropical nights a year in a typical building, today and by 2050
23%of homes at high or very high flood risk by 2050
425homes in the official flood zone (500 years)
At a glance

Where the risk lies by 2050

LowMediumHighVery highRivers and streams

Level of the highest hazard in each 250 m area by 2050: flooding, heat, wildfire, wind or ground movement.

Tropical nights a year in a typical building

Oyón-Oion compared with Spain

  • Tropical nights a year, 2050: 5 nights
    lower than 53 % of municipalities
  • Average summer maximum, 2050: 30,2 °C
    lower than 73 % of municipalities
  • Flood-prone area (100-year): 0,0%
    lower than 80 % of municipalities
  • Area burnt 2016-2026: 0,0%
    lower than 64 % of municipalities
  • Water stress 2050 (0-5): 3,8
    lower than 72 % of municipalities

Position among the 8.217 municipalities: further right means more risk. These are figures for the municipality as a whole, the same for everyone; they may differ from those for the typical building. Compare with others →

What stands out

What we found in Oyón-Oion

It comes from matching each building with its neighbourhood, its street, the nearest watercourse and its surroundings.

1

425 homes in a flood zone

425 homes

They are in the area that can flood once every 500 years according to the official maps (SNCZI); 421 of them are in the 100-year area. Next to Río Grande, 396 homes are inside the flood zone, less than 100 m from the watercourse.

According to the Ministry’s studies, this is an annual probability of 0,2 % (500 years) or 1 % (100 years), not “once every 500 years”: it can happen two years in a row. Small gullies are not always mapped.

2

From 1 to 5 tropical nights a year

1→5 nights

In a typical building in Oyón-Oion, nights when the temperature stays at or above 20 °C would rise from 1 a year (1991-2020) to about 5 by 2050. For this reason, 0 % of homes would be at a high or very high level.

Median of the buildings. Intermediate-to-high emissions scenario (SSP3-7.0).

Six hazards

How many homes are at high risk, today and in 2050

The 1.870 homes in Oyón-Oion by the level of their building. Tap a hazard to see it on the map.

LowMediumHighVery high
What can be done

For the town council and for residents

For the town council and its technical staff

  • Review with the river basin authority the watercourses with no official mapping that run next to homes, and keep them clear.
  • Emergency self-protection plans in the schools, care homes and health centres that are in a flood zone.
  • Download the tables by area, neighbourhood, street and watercourse (Data tab) to cross-check them with urban planning.

For residents

  • If you live on a ground floor or have a garage next to a watercourse, have a plan: where to go upstairs, what to switch off and how to hear about warnings.
  • Look up your building: the free report gives its level for each hazard, and the Climate Note gives the full detail.

Look up your building