Kings Island Amusement Park, Ohio Weather Forecast Discussion

810
FXUS61 KILN 182249
AFDILN
Area Forecast Discussion
National Weather Service Wilmington OH
649 PM EDT Thu Sep 18 2025
.SYNOPSIS...
Dry conditions are expected to continue through Saturday with low
rain chances possible Sunday into early next week. Although a low
chance for rain is forecast early next week, rainfall amounts look to
be light. Above normal temperatures are expected to continue this
week into early next week. A wetter and cooler pattern is favored
toward the middle and end of next week.
&&
.NEAR TERM /THROUGH FRIDAY/...
A blocky/stagnant weather pattern continues across the area. The
region continues to be under the influence of a mid level ridge that
is sandwiched between a low over the Plains and a trof along the East
Coast. A few diurnally driven flat cumulus clouds will dissipate
with the loss of heating leaving mainly clear skies overnight. Have
adjusted afternoon surface dewpoints down utilizing NBM10 based on
observational trends in this airmass.
Lows tonight range from the mid 50s in outlying areas to around 60
in urban locations.
&&
.SHORT TERM /FRIDAY NIGHT/...
Dry conditions to continue under the influence of a mid level ridge
Friday. Expect a few diurnally driven flat cumulus clouds Friday
afternoon with mid and high level clouds spilling in from the west
Friday night with the approach of a shortwave.
Have continued to adjust afternoon surface dewpoints down utilizing
NBM10 based on observational trends in this airmass. Warm highs on
Friday top out in the upper 80s to around 90. Lows Friday night vary
from the upper 50s to the lower 60s.
&&
.LONG TERM /SATURDAY THROUGH THURSDAY/...
Sun afternoon looks to have s/w activity running ene along upper
flow with an h8 diurnal wind maxima setting up overnight. Dynamics
look to weaken Mon morning but pick back up later in the day and
ramp up to bring the best chance of rain in this forecast overnight
Mon. A lower but continued chance of rain exists from here onward.
While the chance of rain is better than we`ve seen in the region for
quite a while, it`s more of a miss or hit pattern after Mon night. A
better scenario for the coming week points to increased moisture
over the Ohio Valley in a general troughy pattern. At the least, the
increased moisture should mark a steady decrease in high
temperatures from the upper 80s Sat, mid-upper 80s Sun and then a
steady lowering to end up on Wed/Thu in the mid 70s northwest and
low 80s southeast. More consistent lows in the lower 60s result from
this increased moisture, with readings near 60 overnight Wed.
Model signals look to have better consistency through the weekend
with upper level low pressure in the Upper Midwest. On Monday, this
low moves east and combines with energy in the Rockies, elongating
into a wsw-ene trough. Upper features evolve quite differently
between the models starting on Mon, leading to high uncertainty/low
confidence in the large-scale pattern.
&&
.AVIATION /00Z FRIDAY THROUGH TUESDAY/...
VFR conditions are expected through the TAF period, with a very dry
air mass in place. The only exception will be some MVFR fog (low
confidence in IFR) at KLUK overnight.
Some cumulus clouds will likely develop again tomorrow, with winds
remaining below 10 knots through the period.
OUTLOOK...Thunderstorms are possible on Monday and Tuesday.
&&
.ILN WATCHES/WARNINGS/ADVISORIES...
OH...Air Quality Alert until midnight EDT Friday night for OHZ070-071-
     077-078.
     Air Quality Alert from 7 AM to 8 PM EDT Friday for OHZ046-055-056-
     065.
KY...Air Quality Alert until midnight EDT Friday night for KYZ091>093.
IN...Air Quality Alert until midnight EDT Friday night for INZ050-058-
     059-066-073>075-080.
&&
$$
SYNOPSIS...AR
NEAR TERM...AR
SHORT TERM...AR
LONG TERM...Franks
AVIATION...Hatzos

NWS ILN Office Area Forecast Discussion