Extended Streamflow Guidance
Issued by NWS Lower Mississippi RFC

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FGUS64 KORN 171508
ESGORN

Flood Potential Outlook
National Weather Service
Lower Mississippi River Forecast Center, Slidell LA
905 AM CST Wednesday January 17 2018

East Tennessee Valley Region - Spring Flood Potential Outlook
              National Weather Service
Lower Mississippi River Forecast Center - Slidell, LA
          valid for Thursday January 18 2018


Streamflow data provided by the U.S. Geological Survey and
the U.S. Army Corps of Engineers.

...For Eastern Region...WFOS GSP AND RNK only...

...Introduction...

During the past two weeks, localized rainfall amounts of over 5 inches occurred
over the higher elevations of west North Carolina while the remainder of west
North Carolina and southwest Virginia had 1 to 2 inches. Overnight, snowfall of
1 to 2 inches occurred over southwest Viriginia and west North Carolina.

Region wide...streamflow and soil moisture values are generally near seasonal
averages due to recent rainfall.

The current precipitation forecast for the next seven days indicate
widespread mean areal amounts of 0.50 to 1 inch over southwest Virginia and
west North Carolina.

...French Broad/Upper Pigeon...Little Tennessee...Tuckasegee
...and Hiwassee Basins (WFO GSP)...

Streamflows have risen to normal to slightly above normal due to recent
rainfall. Soil moisture content is near seasonal levels. Minor flooding
occurred last week on the French Broad but all area rivers have receded and
remain well below flood stage now. No flooding is occurring or expected over
the next 5 days. Observed daily streamflows as a percent of mean are given
below.

         1/3   1/17
French Broad River          Asheville NC     67%  138%
Pigeon River                    Hepco NC     81%  131%
Tuckasegee River          Bryson City NC     47%  106%
Little Tennessee River       Needmore NC     68%   96%

Based on existing soil moisture content...streamflows...and Climate Prediction
Center Outlooks...an AVERAGE flood potential is expected for the French
Broad...Upper Little Tennessee...Tuckasegee...and Pigeon River Basins.


...Upper Clinch and Upper Holston Basins (WFO RNK)...

Streamflows are running near normal due to recent rainfall. Soil moisture
content has returned to near normal and no flooding is occurring or expected
during the next several days. Observed daily streamflows as a percent of mean
are given below.

   1/3   1/17
N Fork Holston River        Saltville VA    47%   83%
Mid Fork Holston Rvr  Seven Mile Ford VA    23%   74%

Based on existing soil moisture content...streamflows...and Climate Prediction
Center Outlooks...an AVERAGE flood potential is expected for the Upper Clinch
and Upper Holston River Basins.


...Extended Temperature and Precipitation Outlook...

The 8-14 DAY Outlook issued by the NWS Climate Prediction Center indicates
above normal chances of precipitation and temperatures over the region.

The 30-DAY Outlook indicates chances of above normal precipitation and
chances of below normal temperatures over southwest Virginia and west North
Carolina.

The 90-DAY Outlook issued by the NWS Climate Prediction Center indicates
chances of above normal temperatures and precipitation over the region.

The next springflood outlook is scheduled to be released on January 31 2018.

$$



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