Hydrometeorological Discussion
Issued by NWS Ohio RFC

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061
AGUS71 KTIR 211634
HMDTIR
Ohio River Basin Hydrometeorological Discussion
Ohio River Forecast Center, Wilmington, Ohio
1134 AM EST Sunday, January 21, 2018

*** NOTICE:  This text product will cease after Monday, February 5, 2018.
*** It is replaced with a graphical version at the following web address:
*** https://www.weather.gov/ohrfc/graphicalHMD

...HYDROMETEOROLOGICAL DISCUSSION...
A warm front lifting through the Ohio Valley is bringing warmer and more moist
conditions to the Ohio Valley. It will feature widespread, but very light
rainfall.

On Monday a cold front will progress through the region. It will feature more
significant, but still modest amounts, of rainfall. A trailing area of low
pressure moving across the Great Lakes on Tuesday will allow some rain and snow
showers to persist, mainly north of the Ohio River.

Temperatures will remain near normal Wednesday, but begin to rise on Thursday
and Friday as southerly winds blow into the region.

Another frontal system is forecast to push through the basin next weekend.
This system has the potential to feature heavier rainfall amounts, especially
south of the Ohio River.

...FLOOD POTENTIAL DISCUSSION...
Local flooding caused by ice jams remains is a possibility -- particularly in
the northern half of the service area. Warmer temperatures over the Ohio Valley
is resulting in some gradual snow melt. This, in combination with rain expected
Monday will produce some significant river rises. There will be an
increasing potential for minor flooding, especially in western Indiana and far
northwestern Ohio, this week.

...24-HR OBSERVED PRECIPITATION USED IN TODAY`S RIVER FORECASTS...
Very light amounts of rain were scattered over the middle of the Ohio Valley.
Basin average amounts were less than 0.05 inch.

...48-HR FORECAST PRECIPITATION USED IN TODAY`S RIVER FORECASTS...
Rain is expected across the entire forecast area. Amounts will generally range
from 0.30 to 0.60 inch, but along the northern and northeastern edges of the
Ohio Valley basin averages may be as much as 0.50 to 1.00 inch.

...RIVER BASINS IN FLOOD...
None.

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

$$
Link Crawford




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