Hydrometeorological Discussion
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069
AGUS71 KTIR 171524
HMDTIR
Ohio River Basin Hydrometeorological Discussion
Ohio River Forecast Center, Wilmington, Ohio
1124 AM EDT Wednesday, May 17, 2017

...HYDROMETEOROLOGICAL DISCUSSION...
A ridge of high pressure will provide mostly dry conditions with above
normal temperatures today. The ridge will begin to break down on Thursday
as a cold front approaches from the northwest. Scattered showers and
thunderstorms will fire up Thursday and Friday, especially during the
afternoon and early evening hours. A more potent cold front will slide
through the basin around Sunday resulting in more organized and widespread
showers and storms.

...FLOOD POTENTIAL DISCUSSION...
Though most rivers in the basin have crested, several still remain above
flood stage in the western Ohio Valley (see below).  The potential for new
flooding remains low for the next several days. Rain over the weekend and
early next week could cause some rises.

...24-HR OBSERVED PRECIPITATION USED IN TODAY`S RIVER FORECASTS...
Light rain in the northeast Ohio Valley produced amounts around 0.10" or
less.  The rest of the region was dry.

...48-HR FORECAST PRECIPITATION USED IN TODAY`S RIVER FORECASTS...
Isolated to scattered showers and thunderstorms are forecast across the
western Ohio Valley tonight through the end of the period. Nothing
organized is expected. Amounts on average will be under 0.50" although
locally heavier amounts are possible in thunderstorms.

...RIVER BASINS IN FLOOD...
Points along the following river basins were in flood Wednesday morning:
 River Basin     Forecast Point   Flood Stage Latest Stg Tendency *
Ohio River       J T Myers Dam         37         38.3    Steady
Ohio River       Shawneetown           33         36.9    Falling
White River      Petersburg            16         19.5    Falling
Wabash River     Montezuma             14         14.9    Falling
Wabash River     Terre Haute           14         15.3    Falling
Wabash River     Riverton              15         20.1    Falling
Wabash River     Vincennes             16         19.2    Falling
Wabash River     Mount Carmel          19         26.5    Falling
Wabash River     New Harmony           15         20.1    Falling
Little Wabash Ri Carmi                 27         33.5    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.
$$
jm




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