Each circle is a river gauge. It grows and turns red as that river climbs toward the highest level ever measured there.
Drag the timeline or press ▶ to move through the storm, hour by hour.
Blue dots are rain gauges, sized by how much rain fell that day.
Red rings appear when the EA issued a severe "danger to life" warning at that moment.
Enter your postcode (top right) to see the storm around your own address.
The 🔴 ticker under the map logs each river passing its all-time record as the clock reaches that moment.
River level, compared with the highest ever recorded at that gauge (100% = its all-time record)<50%50–75%75–90% very high90–100% near record≥100% record brokenrain (sized by that day’s rain)warningsevere warning
Overflow timing usually matches river rises because both are driven by the same rainfall — a timing match is not evidence that either caused the other.
🔴 Records broken — rivers passing their highest level ever measured, as the clock reaches each moment