Coronavirus (COVID-19): how we're protecting our flood warning service

River level River Lee at Harpenden

Check for flood warnings in this area

Latest recorded level 0.84m at 5:30am Thursday 24 September 2020.

River levels at this location in the last 5 days

Now

You're missing out. A graph should be visible here.
Upgrade your browser to see and use all the features of this service.


You're missing out. A graph should be visible here.

Javascript must be enabled.

Observed data

DateTime Value Error
0.838 false
0.84 false
0.844 false
0.845 false
0.846 false
0.85 false
0.851 false
0.854 false
0.856 false
0.859 false
0.859 false
0.862 false
0.863 false
0.868 false
0.869 false
0.872 false
0.873 false
0.875 false
0.872 false
0.871 false
0.869 false
0.869 false
0.863 false
0.868 false
0.864 false
0.862 false
0.861 false
0.858 false
0.855 false
0.851 false
0.849 false
0.85 false
0.849 false
0.848 false
0.846 false
0.846 false
0.844 false
0.842 false
0.838 false
0.833 false
0.825 false
0.82 false
0.815 false
0.81 false
0.808 false
0.805 false
0.804 false
0.805 false
0.803 false
0.808 false
0.802 false
0.802 false
0.804 false
0.805 false
0.801 false
0.803 false
0.802 false
0.803 false
0.802 false
0.803 false
0.804 false
0.804 false
0.805 false
0.805 false
0.806 false
0.806 false
0.805 false
0.805 false
0.805 false
0.804 false
0.803 false
0.803 false
0.801 false
0.801 false
0.8 false
0.8 false
0.799 false
0.8 false
0.8 false
0.799 false
0.796 false
0.792 false
0.785 false
0.772 false
0.754 false
0.731 false
0.709 false
0.696 false
0.694 false
0.693 false
0.695 false
0.697 false
0.699 false
0.702 false
0.702 false
0.703 false
0.705 false
0.707 false
0.709 false
0.711 false
0.713 false
0.715 false
0.719 false
0.721 false
0.723 false
0.726 false
0.728 false
0.73 false
0.732 false
0.733 false
0.735 false
0.737 false
0.739 false
0.74 false
0.74 false
0.74 false
0.741 false
0.742 false
0.743 false
0.744 false
0.744 false
0.744 false
0.744 false
0.744 false
0.744 false
0.744 false
0.744 false
0.743 false
0.742 false
0.741 false
0.74 false
0.739 false
0.738 false
0.739 false
0.739 false
0.74 false
0.74 false
0.74 false
0.74 false
0.741 false
0.741 false
0.741 false
0.741 false
0.741 false
0.741 false
0.743 false
0.743 false
0.744 false
0.744 false
0.743 false
0.744 false
0.744 false
0.745 false
0.745 false
0.745 false
0.744 false
0.743 false
0.742 false
0.74 false
0.741 false
0.74 false
0.739 false
0.737 false
0.736 false
0.732 false
0.729 false
0.726 false
0.721 false
0.715 false
0.71 false
0.703 false
0.697 false
0.693 false
0.689 false
0.687 false
0.686 false
0.684 false
0.684 false
0.683 false
0.684 false
0.684 false
0.684 false
0.686 false
0.691 false
0.691 false
0.693 false
0.696 false
0.698 false
0.701 false
0.705 false
0.707 false
0.71 false
0.713 false
0.715 false
0.718 false
0.72 false
0.723 false
0.724 false
0.727 false
0.729 false
0.73 false
0.733 false
0.735 false
0.736 false
0.739 false
0.741 false
0.742 false
0.744 false
0.746 false
0.748 false
0.749 false
0.749 false
0.751 false
0.752 false
0.752 false
0.751 false
0.75 false
0.749 false
0.748 false
0.747 false
0.747 false
0.747 false
0.746 false
0.746 false
0.746 false
0.746 false
0.745 false
0.744 false
0.743 false
0.742 false
0.742 false
0.743 false
0.743 false
0.743 false
0.743 false
0.744 false
0.745 false
0.746 false
0.746 false
0.748 false
0.748 false
0.747 false
0.746 false
0.746 false
0.746 false
0.746 false
0.745 false
0.746 false
0.746 false
0.747 false
0.746 false
0.747 false
0.747 false
0.747 false
0.747 false
0.747 false
0.746 false
0.745 false
0.744 false
0.742 false
0.74 false
0.736 false
0.731 false
0.725 false
0.719 false
0.715 false
0.709 false
0.705 false
0.7 false
0.697 false
0.694 false
0.692 false
0.689 false
0.689 false
0.689 false
0.689 false
0.69 false
0.692 false
0.693 false
0.694 false
0.697 false
0.699 false
0.701 false
0.703 false
0.705 false
0.708 false
0.709 false
0.712 false
0.713 false
0.715 false
0.717 false
0.719 false
0.721 false
0.724 false
0.726 false
0.729 false
0.731 false
0.734 false
0.735 false
0.738 false
0.74 false
0.743 false
0.744 false
0.747 false
0.748 false
0.751 false
0.752 false
0.753 false
0.753 false
0.753 false
0.753 false
0.753 false
0.753 false
0.753 false
0.752 false
0.752 false
0.751 false
0.75 false
0.749 false
0.749 false
0.749 false
0.749 false
0.748 false
0.748 false
0.747 false
0.748 false
0.749 false
0.751 false
0.751 false
0.752 false
0.753 false
0.753 false
0.755 false
0.757 false
0.758 false
0.759 false
0.76 false
0.76 false
0.76 false
0.759 false
0.761 false
0.761 false
0.76 false
0.761 false
0.761 false
0.759 false
0.757 false
0.754 false
0.749 false
0.747 false
0.742 false
0.736 false
0.73 false
0.724 false
0.718 false
0.712 false
0.707 false
0.702 false
0.698 false
0.696 false
0.694 false
0.691 false
0.69 false
0.69 false
0.687 false
0.686 false
0.686 false
0.686 false
0.686 false
0.686 false
0.689 false
0.689 false
0.691 false
0.693 false
0.694 false
0.697 false
0.699 false
0.7 false
0.703 false
0.706 false
0.708 false
0.71 false
0.711 false
0.713 false
0.715 false
0.717 false
0.718 false
0.721 false
0.723 false
0.725 false
0.727 false
0.729 false
0.732 false
0.734 false
0.735 false
0.736 false
0.738 false
0.74 false
0.741 false
0.742 false
0.744 false
0.745 false
0.745 false
0.745 false
0.746 false
0.746 false
0.747 false
0.747 false
0.748 false
0.748 false
0.748 false
0.749 false
0.748 false
0.748 false
0.748 false
0.749 false
0.749 false
0.75 false
0.75 false
0.751 false
0.75 false
0.751 false
0.751 false
0.752 false
0.752 false
0.753 false
0.755 false
0.757 false
0.757 false
0.759 false
0.76 false
0.761 false
0.76 false
0.762 false
0.761 false
0.762 false
0.761 false
0.759 false
0.76 false
0.76 false
0.76 false
0.758 false
0.759 false
0.757 false
0.755 false
0.753 false
0.75 false
0.746 false
0.742 false
0.737 false
0.729 false
0.724 false
0.717 false
0.713 false
0.707 false
0.703 false
0.699 false
0.696 false
0.694 false
0.692 false
0.691 false
0.69 false
0.688 false
0.688 false
0.687 false
0.686 false
0.686 false
0.688 false
0.688 false
0.691 false
0.693 false
0.695 false
0.697 false
0.699 false
0.702 false
0.705 false
0.707 false
0.709 false
0.712 false
0.715 false

Forecast data




Share this page