Issued by NWS Ohio RFC
AGUS71 KTIR 121530
Ohio River Basin Hydrometeorological Discussion
Ohio River Forecast Center, Wilmington, Ohio
1030 AM EST Thursday, December 12, 2013
High pressure over the Ohio Valley today will keep conditions dry. One
exception will be continued lake effect snow showers affecting the northeast
A weather system is forecast to move through the basin on Saturday, with
initial precipitation moving into the western portion of the basin on Friday
afternoon. Less than an inch of precipitation is expected in the basin by the
end of the event on Sunday, much of which will be frozen precipitation north
of the Ohio River and liquid rain to the south.
Next week will be primarily dry and cool in the Ohio Valley, with the exception
of some snow showers in the north. By the end of next week a warm weather
system is forecast to move into the basin bringing rain to the entire Ohio
...FLOOD POTENTIAL DISCUSSION...
At this time all rivers have fallen below flood stage. The potential for
additional flooding is minimal with no significant precipitation forecast
this week. The lone exception is on the lower Ohio River at Newburgh, IN
later this week as water routes down.
...24-HR OBSERVED PRECIPITATION USED IN TODAY`S RIVER FORECASTS...
Snow fell across many areas north of the Ohio River, but measurable amounts
were confined to the northern third of the basin. Amounts were generally light
with liquid-equivalent basin-average amounts less than 0.20 inch.
...48-HR FORECAST PRECIPITATION USED IN TODAY`S RIVER FORECASTS...
Day 1 (7AM EST Thursday - 7AM EST Friday):
Precipitation will be confined to the far northeastern edge of the basin as
lake effect snows provide basin averages up to 0.40 inch.
Day 2 (7AM EST Friday - 7AM EST Saturday):
Precipitation is forecast across the entire basin. Amounts increase to the
southwest with portions of western Kentucky and middle Tennessee expecting
up to 0.60 inch.
...RIVER BASINS IN FLOOD...
Detailed precipitation graphics and other maps are available on the HAS Support
Page at this web address: http://weather.gov/ohrfc/HAS
QPF from OHRFC, HPC, et al., can be seen at weather.gov/ohrfc/Forecast.php