Hydrometeorological Discussion
Issued by NWS Ohio RFC

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AGUS71 KTIR 091505
HMDTIR
Ohio River Basin Hydrometeorological Discussion
Ohio River Forecast Center, Wilmington, Ohio
1005 AM EST Saturday, December 9, 2017

...HYDROMETEOROLOGICAL DISCUSSION...
With cold air over the Ohio Valley for the next week, any precipitation falling
in the region is going to be in the form of snow.  Currently a weak clipper
system is diving through the basin from the northwest.  Snowfall amounts are
quite light with water-equivalent amounts only on the order of hundredths of an
inch.  In its wake tomorrow, the eastern lake effect will again rev up, bringing
the heaviest amounts to the PA/NY areas most prone to lake enhanced precip.

...FLOOD POTENTIAL DISCUSSION...
River flows are currently at climatological minimums. Little if any liquid
precipitation or snowmelt is expected over the next week, keeping the potential
for any flooding very low.

...24-HR OBSERVED PRECIPITATION USED IN TODAY`S RIVER FORECASTS...
A system to the southeast of the Ohio River forecast basin has been strafing
the far southeast edges of the basin...amounts over the past 24 hours here were
generally a half inch or less.  The aforementioned clipper brought very light
amounts of a few hundredths to northern IN and NW OH.

...48-HR FORECAST PRECIPITATION USED IN TODAY`S RIVER FORECASTS...
the northern two-thirds of the basin are forecast to receive less than a tenth
of precipitation from the passing clipper.  Nearly everything falling would be
snow.  Amounts a half inch to an inch are forecast in an extremely narrow lake
effect band in NW PA and SW NY.

...RIVER BASINS IN FLOOD...
None.

Forecast precipitation graphics are available on the OHRFC Website
at the following address:  http://weather.gov/ohrfc/ForecastPrecipitation

$$





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