Flood Potential Outlook
Issued by NWS Pittsburgh, PA

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Winter/Spring Flood Potential Outlook
National Weather Service Pittsburgh PA
1118 AM EDT Fri Mar 19 2021

...Flood potential is near normal for the next two weeks in the
upper Ohio Valley...

A near normal flood potential means occasional flooding could
occur with water levels having minor impacts.

Winter/spring flood outlooks are issued biweekly by the National
Weather Service during winter and early spring to summarize basin
hydrological and meteorological conditions. They also assess the
potential for flood risk. The outlooks are based on current and
forecast conditions.

...RECENT PRECIPITATION...

Precipitation over the last 2 weeks has ranged from 1.00 to 2.50
inches over western Pennsylvania, eastern Ohio, and West
Virginia.

...SOIL MOISTURE...

Soil moisture is near normal in West Virginia, Ohio, and near
southwest Pennsylvania.

...STREAMFLOWS...

Streamflows are running normal to slightly below normal across
most of western Pennsylvania and Ohio, but below normal in
northern West Virginia over the last 30 days.

The Ohio River at Pittsburgh is at 70% of normal flow.

...SNOW CONDITIONS...

No snowpack in the Ohio River Basin.

...ICE COVER...

No ice cover in the Ohio Valley/Great Lakes drainage.

...RESERVOIR CONDITIONS...

Reservoir storage is near normal on the Ohio River.

...FUTURE RAINFALL AND FLOOD OUTLOOK SUMMARY...

During the next 2 weeks....an active weather pattern is forecast
in the Ohio River Basin/Great Lakes drainage producing above
normal rainfall. A normal risk for flooding will exist in western
Pennsylvania, eastern Ohio, and West Virginia.

- The 90-day outlook calls for above normal precipitation. There
  will be minor flooding risk across Ohio, West Virginia, western
  Pennsylvania.

For the long-range river outlooks and the probability of
exceeding flood stage during the next 90-days, refer to
https://www.weather.gov/ohrfc and click on an individual forecast
point. Select probability information in the upper right-hand
corner.

The Ohio River Forecast Center also issues a 30-90 day water
resources outlook monthly throughout the year for a continuous
water watch. This can be found at
https://www.weather.gov/ohrfc/wfo.

Factors considered in assessing flood potential include
antecedent conditions, past precipitation, current streamflows
and
reservoir levels, soil moisture, water content in snow cover, ice
conditions, and future precipitation.

$$


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