Issued by NWS Ohio RFC
AGUS71 KTIR 261658
Ohio River Basin Hydrometeorological Discussion
Ohio River Forecast Center, Wilmington, Ohio
1258 PM EDT Friday, August 26, 2016
A cold front that was approaching from the northwest has become fairly
stationary across the northwest Ohio Valley. High pressure over the
mid-Atlantic region will prevent the front from progressing any farther
southeast until mid-next week.
In the meantime, humidity and instability in the atmosphere will fuel mostly
afternoon and evening thunderstorms in the Ohio Valley through the weekend and
into next week. The activity will be more concentrated in the northern and
western portions of the basin, but none of the Ohio Valley is completely
exempt from the threat of this thunderstorm activity.
...FLOOD POTENTIAL DISCUSSION...
Minor flooding lingers on the lower Little Wabash in southeast Illinois and is
slow to recede. Otherwise, the threat of new flooding is low despite the
unsettled weather forecast the next couple days.
...24-HR OBSERVED PRECIPITATION USED IN TODAY`S RIVER FORECASTS...
Showers and storms were scattered, mostly across the northern Ohio Valley. The
lower Ohio Valley received very little rainfall. Heaviest basin average amounts
were in western Pennsylvania where they ranged from 0.50 to 1.50 inches.
...48-HR FORECAST PRECIPITATION USED IN TODAY`S RIVER FORECASTS...
Rain is forecast mainly in the northwestern half of the Ohio Valley. Basin
averages will be highest in northern Indiana and east central Illinois where it
will range from 0.50 to nearly 1.00 inch.
...RIVER BASINS IN FLOOD...
Points along the following river basins were in flood Friday morning:
River Basin Forecast Point Flood Stage Latest Stg Tendency *
Little Wabash Carmi 27 28.8 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.