Hydrometeorological Discussion
Issued by NWS Ohio RFC

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931
AGUS71 KTIR 201711
HMDTIR
Ohio River Basin Hydrometeorological Discussion
Ohio River Forecast Center, Wilmington, Ohio
111 PM EDT Thursday, July 20, 2017

...HYDROMETEOROLOGICAL DISCUSSION...
A series of low pressure waves traversing the Great Lakes will bring
unsettled weather to mainly the northern half of the basin the next several
days. With an excessively moist airmass in place, heavy rain and flash
flooding will be a possibility.  A slightly cooler, drier airmass should
arrive early-mid next week possibly providing a few days respite, both from
the heat and the thunderstorms.

...FLOOD POTENTIAL DISCUSSION...
Minor flooding continues at the bottom end of the White River, otherwise
river levels are mostly down around seasonable norms.  Several rounds of
showers and thunderstorms the next few days will keep the flood threat
elevated, especially where the heaviest rain is forecast in IL, IN, and OH.

...24-HR OBSERVED PRECIPITATION USED IN TODAY`S RIVER FORECASTS...
Isolated showers and storms affected parts of the region. Amounts were
fairly light, although local amounts of 0.50" to 1" were reported.

...48-HR FORECAST PRECIPITATION USED IN TODAY`S RIVER FORECASTS...
Much of the northern half of the region will see 0.50" to 2" with locally
heavier totals in thunderstorms. Lesser amounts are expected south of the
Ohio River.

...RIVER BASINS IN FLOOD...
Points along the following river basins were in flood Thursday morning:
 River Basin     Forecast Point   Flood Stage Latest Stg Tendency *
White River      Hazleton              16         18.0    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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