Issued by NWS Ohio RFC
AGUS71 KTIR 111418
Ohio River Basin Hydrometeorological Discussion
Ohio River Forecast Center, Wilmington, Ohio
1018 AM EDT Tuesday, March 11, 2014
Conditions are quiet across the Ohio Valley today, but tonight a strong
low pressure system will bring precipitation through the basin. While
the precipitation will begin as rain, a strong temperature gradient will
have temperatures dropping rapidly behind a cold front, resulting in a change
from rain to snow from northwest to southeast across the basin tonight and
The cold airmass that spills into the basin behind the disturbance will
moderate with more normal temperatures by the end of the work week. Beyond
the midweek storm system, no hydrologically significant events are forecast
until perhaps the middle of next week.
...FLOOD POTENTIAL DISCUSSION...
Minor flooding is forecast or occurring on the Green River in western
Kentucky. Rainfall expected to begin Tuesday night could cause some
significant river rises by midweek. Some minor flooding is possible with
this event, particularly across the western, northern, and central Ohio
...24-HR OBSERVED PRECIPITATION USED IN TODAY`S RIVER FORECASTS...
Very light rain in northern Indiana and Ohio produced a hundredth or two.
Most of the region was dry.
...48-HR FORECAST PRECIPITATION USED IN TODAY`S RIVER FORECASTS...
Precipitation is expected across the entire forecast area. Basin average
amounts will be highest in east central Illinois, central Indiana and west
central Ohio as well as far western New York and northwest Pennsylvania where
totals will range from 1 to 1.25 inches. Amounts will be greater than 0.50
inch over all areas north of the Ohio River as well as in northern Kentucky
and much of West Virginia.
...RIVER BASINS IN FLOOD...
Points along the following river basins were in flood Tuesday morning:
River Basin Forecast Point Flood Stage Latest Stg Tendency *
Green River Paradise 380 381.1 Steady
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
* Tendency based on observed value and a 1-day forecast.