New names on the impact matrix

October 2026

The Flood Forecasting Centre, the Met Office and the UK's environment agencies now share one impact matrix, so flood guidance and weather warnings use the same words.

Impact Minimal→Minor Minor→Moderate Significant Severe→Extreme
Likelihood Very low→Low Low→Medium Medium→High High→Very high

Colours and overall flood risk levels are unchanged. This site uses the new names throughout, but the text inside older statements keeps the words used when it was issued.

Flood Guidance Statement Barcode Calendar

Timeline visualisation where each stripe represents highest flood risk per day across all sources.

Sources:
Risk Level:
Impact:
Nation: All England Wales
Overlays:
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Very Low
Low
Medium
High

Flood Guidance Statement data from the Flood Forecasting Centre (a partnership of the Met Office and Environment Agency). Contains public sector information licensed under the Open Government Licence v3.0.