NZUS99 KIND 081735
WRKLNG

Saturday and Sunday...

Moderate upper ridging is expected to be moving through Indiana and
the Great Lakes on Saturday and Sunday. This will be accompanied by
an area of surface high pressure moving through the Great Lakes on
Saturday and reaching New England by Sunday. Thus dry weather and
mainly partly cloudy skies will be expected. Surface flow around the
high on Saturday will be southeasterly, however on Sunday as the
high pushes farther east, warmer, southerly flow will develop across
Indiana. This will result in Sunday being a bit warmer than Saturday.

Monday through Wednesday...

A wetter, rainy pattern is expected to take shape as we start the
next workweek. Constant rain is not expected and there will be many
dry hours, but chances for showers and thunderstorms will persist
each day.

Aloft, a moderate trough is expected to be in place over the western
CONUS, while a weaker ridge is in place over the eastern third of
the country. This will result in a southwest flow in place across
the Ohio Valley. Multiple upper waves and energy are expected to
pass within the flow on Monday, Tuesday and Wednesday, providing
forcing. Within the lower levels, southerly flow is expected to be
in place on Monday and Tuesday, allowing warmer and more humid air
to flow into the Ohio Valley. This combined with the passing forcing
aloft will provide sufficient forcing for showers and storm
development. An even better setup for rain looks to take shape on
Wednesday as a frontal boundary is expected to slowly sag across
Indiana from the northwest. This will result in an additional
ingredient for rain, building confidence. Monday through Wednesday
looks to remain within the warm sector as southerly flow will remain
in place. Look for temperatures to remain above seasonal normals as
highs will reach the 70s.