Hazardous Weather Potential

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AREA FORECAST DISCUSSION
National Weather Service Charleston WV
501 AM EST Wed Jan 16 2019

.LONG TERM /SATURDAY THROUGH TUESDAY/...
As of 445 AM Wednesday...

A strong low pressure system will move into the region on
Saturday. Precipitation may start off as a wintry mix early
Saturday morning, before transitioning over to rain as the day
progresses. High amounts of moisture advected into the region,
pw values of around an inch, above the 90th percentile for this
time of year, and strong dynamics will result in heavy rainfall.
Still looking like heaviest rainfall qpf will be in southeast
Ohio and areas near the Ohio River, and WPC has a general 1.5 to
2 inches qpf for these areas, with lesser amounts to the south
and east. Regardless, with the wet soil conditions, and
precipitation from the Thursday/Friday system, flooding cannot
be ruled out anywhere. Will highlight this potential in the HWO.

System will start to move to the east of the region by Saturday
night, with much colder air rushing in behind the system, along
with gusty winds. Will see a change over to snow, possibly
briefly heavy for a few hours late Saturday night/early Sunday,
before quickly tapering off during the day Sunday. Preliminary
snowfall accumulations in the forecast, which at this point only
go to Sunday morning, have 1 to 4 inches across southeast Ohio.

As stated, much colder air, on the order of -21Z at 850mb will
move into the area as the day progresses Sunday. By Monday
morning, will see low temperatures in the single digits across
the lowlands, and below zero across the higher terrain. May even
see some spots in southeast Ohio close to 0 or slightly below.
This, combined with the gusty winds behind the departing system,
looks to necessitate a wind chill advisory across the higher
terrain, if not parts of the lowlands too.
___________________

Official NWS Athens OH 7-Day Forecast (updates 4-5 times daily): http://climate.athens.oh.us/Athens-7Day/ 
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Athens Ohio Climatological Data Archive: http://climate.athens.oh.us/ 
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