Issued by NWS Ohio RFC
AGUS71 KTIR 211740
Ohio River Basin Hydrometeorological Discussion
Ohio River Forecast Center, Wilmington, Ohio
140 PM EDT Tuesday, May 21, 2013
Showers and thunderstorms will be common in the Ohio Valley through Thursday.
Atmospheric disturbances will propagate along a slowly advancing cold front
which is still northwest of the Ohio Valley on Tuesday afternoon.
...FLOOD POTENTIAL DISCUSSION...
New flooding is not expected from the rainfall in the Ohio Valley this week.,
although rivers in the west basin will see some significant rises. The heaviest
rains should be isolated and infrequent enough not to produce river flooding,
although small stream flooding and urban flooding is still very possible.
...24-HR OBSERVED PRECIPITATION USED IN TODAY`S RIVER FORECASTS...
Thunderstorm activity was widespread in the western basin overnight where 1 inch
or more of rain was common. Scattered showers and thunderstorms were also
observed in the eastern third of the area.
...48-HR FORECAST PRECIPITATION USED IN TODAY`S RIVER FORECASTS...
Over an inch of rain is again forecast over widespread areas in the western
basin through Thursday morning, but most of this activity will occur overnight
tonight. The remainder of the basin will see a rain threat on Wednesday,
although it will become less organized than tonight.
...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
Mark J. Fenbers