flood forecast

Flood warnings were still issued, with stream flooding forecasts of over 12 hours in advance.

And in this case, Federal experts say, the flood forecast may have been issued and used in a way that made things worse.

All flood forecasts are compared against these thresholds - at every pixel - and the threshold exceedance calculated.

One problem in Grand Forks was that lack of experience with such a damaging flood aggravated the uncertainty of the flood forecast.

The issuance of an emergency flood forecast for Columbia, South Carolina occurred as a result of Cindy.

The potential to use a large network of existing GPS installations to measure soil water content could substantially improve model initialization for weather and flood forecasts.

Hydrologic forecast systems calibrated and initialized with high-resolution soil moisture fields will lead to improved flood forecasts and will provide essential information on the potential for landslides.

In order to make the most accurate flood forecasts for waterways, it is best to have a long time-series of historical data that relates stream flows to measured past rainfall events.

Natural evaporation rates are an important part of the water cycle; estimates of evaporation are required for weather forecasts, flood forecasts, and water resource planning, among other things.

These discussions resulted in China supplying the MRC (beginning in 2007) with 24-hour water level and 12-hour rainfall data for flood forecasts in exchange for monthly flow data from the MRC Secretariat.

The serious flooding experienced in the Southern Tier from Tropical Storms Irene and Lee serve as a reminder of the vital importance of the flood forecasts issued by the National Weather Service (NWS).

Coupling this historical information with real-time knowledge about volumetric capacity in catchment areas, such as spare capacity in reservoirs, ground-water levels, and the degree of saturation of area aquifers is also needed in order to make the most accurate flood forecasts.

The output of a flood forecast is typically a maximum expected water level and the likely time of its arrival at key locations along a waterway, and it also may allow for the computation of the likely statistical return period of a flood.

The NCTR's SIFT tsunami forecasting system is described in the NCTR YouTube video about the 2010 Chile tsunami event, and in more detail in the NCTR Power Point presentation Developing tsunami flooding forecast software.

NOAA has been allocated increased funding for flood forecasts in FY2012 and been directed by the Congress to 'collaborate with river commissions to continue efforts to ensure that critical data is coordinated and used to provide accurate and timely flood forecasts.'