Miamitown, Ohio Weather Forecast Discussion

080
FXUS61 KILN 302258
AFDILN
Area Forecast Discussion
National Weather Service Wilmington OH
658 PM EDT Tue Sep 30 2025
.SYNOPSIS...
Seasonably warm and dry conditions will continue through the rest of
the week and into the weekend. A pattern shift will bring back rain
chances for next week.
&&
.NEAR TERM /UNTIL 7 AM WEDNESDAY MORNING/...
Upper level ridging along with broad high pressure continues to
dominate the Midwest region. This regime will maintain itself through
the next several days, keeping the weather pattern fairly stagnant.
Portions of central OH down through north-central KY are observing
some mid and high level clouds mixing in due to blowoff from
Hurricane Imelda. Elsewhere, plentiful sunshine can be expected,
helping to keep temperatures well above normal as highs reach the
middle 80s area-wide.
Lows expected to dip into the 50s across the fa tonight with
efficient radiative cooling. Some localized valley fog is possible.
&&
.SHORT TERM /7 AM WEDNESDAY MORNING THROUGH WEDNESDAY NIGHT/...
H5 ridge becomes more amplified on Thursday, stretching across a
large portion of the central and now eastern CONUS. High pressure
will continue to usher in dry, easterly flow into the region, with
dewpoints dipping even lower Wednesday afternoon. Air temperatures
may actually trend a few degrees cooler compared to Tuesday, but
still anticipating highs around 5-10 degrees above seasonal norms.
Drier air mass will allow for even cooler low temps Wednesday night,
with some middle to upper 40s possible in our northern counties.
&&
.LONG TERM /THURSDAY THROUGH TUESDAY/...
Amplified H5 ridge remains stretched across the vast majority of the
CONUS, with the exception of the Pacific NW. Surface high pressure
will maintain control of the Ohio Valley for the majority of the
extended forecast period. Center of the surface high will drift down
from Canada into far northeastern US, near Maine. The center of the
high will be anomalously strong, near 1035mb.
The surface high will slide southward and broaden in scope as we
progress towards the weekend, which will inevitably weaken the
strength of the high (although still maintaining ~1025mb near the
center). Underneath the H5 ridge, the surface high will continue to
meander around the Atlantic coast. This will not only keep forecast
conditions dry through the Ohio Valley, but also maintain the
trend for above normal temperatures.
A shift in the weather pattern occurs during the early to middle
part of next week as the center of the ridge axis shifts eastward,
eventually being replaced by a longwave trough. This may introduce
rain chances as early as next Tuesday for our fa.
&&
.AVIATION /00Z WEDNESDAY THROUGH SUNDAY/...
VFR conditions are expected except for some river valley fog
overnight at KLUK. Otherwise expect just a few cu and some high
clouds. Winds will be around 10 knots with the potential for isolated
gusts during the day on Wednesday.
OUTLOOK...No significant weather expected.
&&
.ILN WATCHES/WARNINGS/ADVISORIES...
OH...None.
KY...None.
IN...None.
&&
$$
SYNOPSIS...Clark
NEAR TERM...Clark
SHORT TERM...Clark
LONG TERM...Clark
AVIATION...

NWS ILN Office Area Forecast Discussion