Weather Hydrologic Outlook (2024)

FAQs

What does hydrologic outlook mean? ›

Outlook. A hydrologic outlook is issued to provide notice of noteworthy rises on area rivers, but when the details are uncertain. River flooding and ice jams may be possible but there is low confidence in the timing, location, or extent.

Hydrologic disasters are those events that are caused by an alteration to the hydrologic cycle that result in significant loss of life, property, or damage to the environment. An alteration of the hydrologic cycle is a change in the normal hydrology of a watershed through natural or man-made means.

Hydrology/Flooding Definitions

Flash flood warnings are issued when flooding is imminent. This product will be reserved for those short-term events which require immediate action to protect lives and property, such as dangerous small stream flooding or urban flooding, and dam or levee failures.

Forecasting factors: The National Weather Service develops hydrologic outlooks by utilizing various forecasting factors such as weather patterns, observed precipitation, snowmelt rates, and soil moisture conditions. These factors contribute to the overall assessment of potential flood risks.

5.1 Hydrologic Outlook (ESF) and Hazardous Weather Outlook (HWO). Hydrologic Outlooks (ESF) are issued to provide information on hydrometeorological conditions which could cause flooding in the near term, generally within 1-7 days. River Forecast Center (RFC) forecast guidance may be included in the ESF if available.

Hydrologic Outlook

Issued when a flood potential exists in a time beyond 48 hours from the start of the event.

Specifically, hydrologic hazards include flooding and related events (e.g., landslides and river scour and deposition) and droughts; coastal flooding and related phenomena are not included.

Hydrological disasters are the most violent climate change which impacts the environment and life of people. This article included the types of hydrological disasters such as floods, limnic eruptions, and Tsunami.

Hydrologic condition analysis results in an understanding of the interrelationships among meteorological, surface- and ground-water, and physical and biological factors that influence the flow, quality, and/or timing of water. The magnitude, direction, and rate of change are the expression of hydrologic condition.

Hydrological hazards, or 'hydro-hazards', are defined as extreme events associated with the occurrence, movement and distribution of water, such as floods and droughts. Hydro-hazards usually result from a combination of compounding interacting physical processes that occur across multiple spatial and temporal scales.

Does hydrologic mean water? ›

The adjective hydrologic comes from hydrology, "the science of water," and its roots, the Greek hyrdo-, "water," and the scientific suffix -logy, "study or science." The way water moves from the ocean to the atmosphere and back to the earth is known as the hydrologic cycle.

Hydrologists study how water moves across and through the Earth's crust. They study how rain, snow, and other forms of precipitation impact river flows or groundwater levels, and how surface water and groundwater evaporate back into the atmosphere or eventually reach the oceans.

“Although every drop counts, the reality is that the rain we received from Tropical Storm Hilary and runoff into the tributaries that enter Lake Mead as well as reduced releases from Hoover Dam — due to a decrease in downstream demand — has had some minor impact on the lake's elevation,” according to U.S. Bureau of ...

The hydrologic cycle involves the continuous circulation of water in the Earth-Atmosphere system. At its core, the water cycle is the motion of the water from the ground to the atmosphere and back again. Of the many processes involved in the hydrologic cycle, the most important are: evaporation. transpiration.

Feb 5 (Reuters) - The atmospheric river that has inundated California is a mixed blessing, at once easing drought conditions and promoting threatened fish species while also nourishing the growth of vegetation that will eventually fuel future wildfires.

Hydrological conditions determine the distribution of plant species in wetlands, where conditions such as water depth and hydrological fluctuations are expected to affect the interspecific interactions among emergent wetland species.

The hydrologic cycle describes the continuous movement of water above, on, and below the surface of the Earth. The water on the Earth's surface--surface water--occurs as streams, lakes, and wetlands, as well as bays and oceans. Surface water also includes the solid forms of water-- snow and ice.

Hydroclimate is the scientific field that brings together hydrology and climate, including the impacts that water and its processes have on Earth's climate, and the impacts of climate patterns and change on the global hydrological (or water) cycle.