Hydrometeorological Discussion
Issued by NWS Ohio RFC

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AGUS71 KTIR 191544
HMDTIR
Ohio River Basin Hydrometeorological Discussion
Ohio River Forecast Center, Wilmington, Ohio
1144 AM EDT Sunday, April 19, 2015

...HYDROMETEOROLOGICAL DISCUSSION...
Strong low pressure system is in the process of traversing the Ohio
valley...along with moderate showers and possible embedded thunderstorms.
These will be widespread across the Ohio River forecast basin until the main
cold front finally sweeps through later on Monday.  In its wake, drier, but a
lot cooler weather will take its place with a large and wide upper level trough
to the north.  During that time the next main shot of widespread precipitation
will be Wednesday and then possible again late next weekend.

...FLOOD POTENTIAL DISCUSSION...
Flooding continues in Kentucky, southern Indiana, and southern Illinois.
Moderate flooding is confined to one location on the Green River.
Additional minor flooding is possible with the passage of the current system
into tomorrow.

...24-HR OBSERVED PRECIPITATION USED IN TODAY`S RIVER FORECASTS...
The southern half of the basin is the only location that saw some precipitation
over the past 24 hours.  Small amounts of just under one inch were just
beginning to make their way into the far southern fringes of the basin.  Amounts
tapered off quickly to a few hundredths as one went further north...until
out ahead of the incoming rain.

...48-HR FORECAST PRECIPITATION USED IN TODAY`S RIVER FORECASTS...
Widespread precipitation is predicted in the Ohio valley over the next 48
hours with the oncoming system.  Amounts across the entirety of the basin were a
very general half inch to one inch.  Higher amounts of one inch to one and a
half inches were predicted through the central basin and amounts of just two
inches were forecast for the far southeast corner of the basin.

...RIVER BASINS IN FLOOD...
Points along the following river basins were in flood Sunday morning:
 River Basin     Forecast Point   Flood Stage Latest Stg Tendency *
Ohio River       Cannelton Dam         42         42.2    Steady
Ohio River       Tell City             38         41.6    Steady
Ohio River       Owensboro             40         41.1    Steady
Ohio River       Newburgh Lock &       38         45.0    Steady
Ohio River       Evansville            42         42.2    Steady
Ohio River       Mount Vernon          35         41.9    Steady
Ohio River       J T Myers Dam         37         43.5    Steady
Ohio River       Shawneetown           33         42.1    Steady
Ohio River       Golconda              40         43.0    Steady
Green River      Woodbury              33         38.6    Falling
Green River      Paradise             380        389.2    Steady
Green River      Calhoun               23         26.5    Rising
Wabash River     Princeton             18         18.6    Falling

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

* Tendency based on observed value and a 1-day forecast.
$$





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