Virginia Precipitation and Stream Flow October 7-14, 2014

I'm posting this because we are likely to see some major changes in our regional watersheds today through Saturday.  - Jim
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Virginia Precipitation and Stream Flow for the 7-day Period Ending October 14, 2014 by araflo

Below are images showing precipitation in the southeastern United States and stream flow in Virginia over the seven-day period ending October 14, 2014. The Virginia Water Resources Research Center thanks the agencies mentioned below for providing precipitation and stream-flow information and images. For monthly reviews of precipitation, stream flow, and drought, please see the News Grouper posts available at this link: http://vawatercentralnewsgrouper.wordpress.com/?s=Monthly+Water+Status.

Precipitation

The following maps show southeastern U.S. precipitation amounts over the past seven days (top map), and the percent of normal precipitation for the given location at this time of year (bottom map).  The maps were accessed on 10/15/14 from the National Oceanic and Atmospheric Administration’s (NOAA) Southeast Regional Climate Center, located at the University of North Carolina in Chapel Hill; online athttp://www.sercc.com/climateinfo/precip_maps. As of 10/15/14, these data areprovisional (needing to be verified for accuracy and subject to possible revision).

For another precipitation-information source: The National Weather Service’s Advanced Hydrologic Prediction Service, http://water.weather.gov/precip/, provides maps showing precipitation nationwide or by state for specific days, months, or years. The site also has the capability to show county boundaries. As an example, shwon below is the map of one-day precipitation ending at 8 a.m. on October 15, 2014.

Stream Flow

Average Virginia stream flow over week ending October 14, 2014, is indicated in the map below, from the U.S. Geological Survey WaterWatch for Virginia (online athttp://waterwatch.usgs.gov/classic.php?m=pa07d&r=va&w=mv01d%2Cmap, accessed10/15/14). The map compares the previous week’s average stream flows at about 140 stream-gaging stations (in Virginia and just beyond the state border) to the normal flow levels for that week over the historical record for each gaging station. The color codes/percentile classes used by USGS to compared flows to historical records for the month are as follows: