Hydrometeorological Discussion
Issued by NWS Ohio RFC

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AGUS71 KTIR 041809
HMDTIR
Ohio River Basin Hydrometeorological Discussion
Ohio River Forecast Center, Wilmington, Ohio
109 PM EST Wednesday, March 4, 2015

...HYDROMETEOROLOGICAL DISCUSSION...
A band of rain will continue to affect much of the basin today, with heavy
precipitation at times south of the Ohio River. As a cold front pushes
southeast through the region, rain will change over to a wintry mix of sleet
and snow, and eventually to all snow before tapering off tonight and Thursday.

Behind this weather system the Ohio Valley will shift into a mostly dry
weather pattern for at least a week. Temperatures behind the system will
initially be much colder than normal, but will moderate to around normal by the
end of the weekend and warmer than normal by late next week.

...FLOOD POTENTIAL DISCUSSION...
Heavy rains and a melting snow pack will generate areas of minor flooding,
mainly south of the Ohio River. Moderate flooding is possible, particularly
in the southeast quadrant.  The flood threat is lower in middle TN due to the
lack of snow on the ground, and also across the northern third of the Ohio
Valley where there is plenty of snow-pack, but the relatively cooler
temperatures will help alleviate excessive snowmelt concerns.

...24-HR OBSERVED PRECIPITATION USED IN TODAY`S RIVER FORECASTS...
The entire Ohio Valley saw precipitation. A heavy band was aligned generally
from southwest to northeast along the Ohio River where totals were 1-2 inches.
Basin average amounts greater than 0.50 inch were found in southern Illinois,
southern Indiana, southern Ohio, western Pennsylvania, Kentucky and West
Virginia.

...48-HR FORECAST PRECIPITATION USED IN TODAY`S RIVER FORECASTS...
While precipitation is forecast is forecast across the entire basin, the bulk
of the volume will be south of the Ohio River. Basin average amounts from 1 to
2 inches are forecast across far southern Indiana, far southern Ohio, far
southern Pennsylvania and all of middle Tennessee, Kentucky and West Virginia.

...RIVER BASINS IN FLOOD...
Points along the following river basins were in flood Wednesday morning:
 River Basin     Forecast Point   Flood Stage Latest Stg Tendency *
Licking River    Blue Lick Spring      25         25.7    Rising

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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