Weather Tidbits: Coastal Flooding & Hydrographs
It’s all about coastal flooding in this Weather Tidbits. Coastal flooding is the flooding of land along the coast. This happens when the high tide is higher than normal; that is worsened by onshore winds or heavy rain from a coastal storm. The timing and extent of a coastal flooding event but also river flooding event can be viewed with a hydrograph; which show water activity or flow over a period of time. A hydrograph shows 4 stages: action, minor, moderate and major. The action stage is where high water is possible; where agencies may take actions to prepare for significant hydrologic event. Flood stage is when a body of water causes inundation to areas not normally covered by water, starting with minor flooding.