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000
AGUS71 KTIR 221635
HMDTIR
Ohio River Basin Hydrometeorological Discussion
Ohio River Forecast Center, Wilmington, Ohio
1135 AM EST Saturday, November 22, 2014

...HYDROMETEOROLOGICAL DISCUSSION...

High pressure over the Ohio Valley has moved east allowing another
storm system to move into the basin.  After an initial period of
light freezing rain with advection of milder air into the Ohio
River Basin/Lake Erie drainage...rain will begin falling on Sunday.
Heaviest precipitation will occur in the lower Ohio Valley with lighter
totals forecast in the upper Ohio Valley. Colder...drier weather
returns early next week.

Hydrologically...most rises will be within channel except a reach of
the Wabash River from Lafayette, IN to Hutsonville IL where minor
flooding is forecast.

...FLOOD POTENTIAL DISCUSSION...

An elevated potential for minor flooding exists in the western part
of the Ohio River Basin. Elsewhere...the flood potential is low.

...24-HR OBSERVED PRECIPITATION USED IN TODAY`S RIVER FORECASTS...

less than 2/10 inch fell in the lower Ohio Valley.

...48-HR FORECAST PRECIPITATION USED IN TODAY`S RIVER FORECASTS...

~1+ inches of rain is expected in the lower Ohio Valley...1/2 to 3/4
of an inch in the mid section of the basin...and <1/2 inch across the
watersheds of the upper Ohio Valley.

...RIVER BASINS IN FLOOD...

Rivers are within channel.

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

$$
Wheeler






000
AGUS71 KTIR 211731
HMDTIR
Ohio River Basin Hydrometeorological Discussion
Ohio River Forecast Center, Wilmington, Ohio
1231 PM EST Friday, November 21, 2014

...HYDROMETEOROLOGICAL DISCUSSION...
High pressure over the Ohio Valley today will move east and allow another
weather event to move into the basin.  This event will be mainly rain as warmer
air returns to the region, and most of the rain will occur on Sunday.  Colder
and drier weather will return for the work week with a chance of light snow on
Thursday.

...FLOOD POTENTIAL DISCUSSION...
The potential for flooding is will be on the rise starting Sunday.  The rain and
warm weather will melt any remaining snow, and the combined runoff will not soak
into the ground much.

...24-HR OBSERVED PRECIPITATION USED IN TODAY`S RIVER FORECASTS...
Snow fell in the northeastern basin amounting to a half inch (of liquid
equivalent) in parts of that region in the 24 hours ending near daybreak today.

...72-HR FORECAST PRECIPITATION USED IN TODAY`S RIVER FORECASTS...
Light rain will fall over much of the Ohio Valley until Sunday, but more
organized rain will move into the region early Sunday.  Amounts expected will be
over an inch in the northwest basin through the 3-day period.

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

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

$$
Mark J. Fenbers






000
AGUS71 KTIR 201640
HMDTIR
Ohio River Basin Hydrometeorological Discussion
Ohio River Forecast Center, Wilmington, Ohio
1140 AM EST Thursday, November 20, 2014

...HYDROMETEOROLOGICAL DISCUSSION...
Cold air continues to spill into the Ohio Valley today resulting in more
lake effect snow in the far northeast basin, but little observable weather
elsewhere. High pressure will strengthen into Friday. As the high shifts
east Friday night and Saturday, warmer conditions will return as well as
some shower activity.  A strong low pressure system will bring more
significant rainfall on Sunday.

...FLOOD POTENTIAL DISCUSSION...
The potential for flooding is low through the first half of the weekend.
Beginning Sunday and lasting into early next week, the flood threat will
be elevated as warmer conditions arrive along with widespread rain.  The
greatest risk for flooding will be across the northern and western Ohio
Valley.

...24-HR OBSERVED PRECIPITATION USED IN TODAY`S RIVER FORECASTS...
Light snow showers fell over much of the northern Ohio Valley, but in many
places was too light to measure. Snow coming off of Lake Erie continued to
be prolific.

...48-HR FORECAST PRECIPITATION USED IN TODAY`S RIVER FORECASTS...
Lake effect snow will continue to affect the northeast Ohio Valley through
Day 1, but will finally begin dwindling on Friday. Another 0.50" to 2.00" of
liquid equivalent is forecast in the heaviest bands. Light rain will move
into the northwest basin Friday night. Under 0.10" is forecast.

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

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

$$
jm






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