Gahanna, Ohio 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

601
FXUS61 KILN 160023
AFDILN

Area Forecast Discussion
National Weather Service Wilmington OH
823 PM EDT Fri May 15 2026

.WHAT HAS CHANGED...
In collaboration with surrounding offices and WPC, high temperatures
for Saturday through Tuesday continue to be adjusted down from the
NBM.

&&

.KEY MESSAGES...
1) Unsettled weather is expected this weekend with showers and
thunderstorms occurring across the region. A warm front shifts north
on Sunday providing drier conditions on Monday. The next cold front
approaches the region Tuesday.

2) Above normal temperatures are forecast Sunday through Tuesday
before a cold front moves Wednesday or Wednesday night.

&&

.DISCUSSION...
KEY MESSAGE 1)
Attention shifts to the next period of activity coming late tonight
into Saturday morning. Surface high pressure shifts far enough to the
east to allow for more substantial moisture advection on the
southeast side of the approaching trough. Combining the increased
moisture with warm air advection in the low-level jet will yield
better chances for shower and thunderstorm development into Saturday
morning. While confidence is high that the broader area sees these
higher chances for rain, pin pointing specific locals for higher
chances is a bit more uncertain. A weak disturbance in the mid-level
flow could provide better forcing for portions of northern Kentucky
and southwest/southern Ohio during the late morning and early
afternoon hours.

If there is a bit more coverage across the area in the morning,
lingering cloud cover and showers through the early afternoon could
disrupt the potential for a second round of thunderstorms tied to the
typical period of maximum surface instability. Trends will be
closely monitored during the late afternoon and early evening for
locals that may see a second round of thunderstorms.

The overall severe threat remains marginal, largely due to the
limited availability of stronger severe weather parameters. However,
there remains enough wind flow and potential for stronger instability
to support a threat for damaging winds and perhaps a few reports of large
hail. These severe weather impacts are expected to be fairly
isolated in the morning, with a better chance in the afternoon and
evening if a second round of thunderstorms can form.

The warm front will be the focus for any lingering showers and
thunderstorms into the day on Sunday. After that, the warm front
lifting north will provide a break in the rainfall for Monday ahead
of the next cold front system. Something to watch for during the late
afternoon and evening hours on Monday and moreso on Tuesday is the
potential for some diurnally based activity due to the heat and
moisture in the region. The ridge will be far enough to the east to
allow for more favorable lift over eastern Indiana and western Ohio.

Confidence is increasing across the suite of models to allow for a
clear frontal passage sometime Wednesday or Wednesday night. This
would dry the region out for Thursday and Friday.

KEY MESSAGE 2)
Temperature forecasts remain on track through the weekend and into
early next week as a ridge forms over the eastern CONUS. A period of
well above normal temperatures persists until a cold front approaches
the region Tuesday or Tuesday night. Sunday through Tuesday,
temperatures range from the mid to upper 80s and into the lower 90s,
especially on Monday. There is a bit more uncertainty with the timing
on the front, but Tuesday could also remain quite warm before the
influence of the front impacts the local weather. The temperatures on
Wednesday are mitigated by the presence of the front, along with any
showers and thunderstorms.

Cooler temperatures are then forecast Thursday and Friday behind the
front.

&&

.AVIATION /00Z SATURDAY THROUGH WEDNESDAY/...
Primarily dry conditions are expected through most of the overnight
hours. Scattered showers and thunderstorms will move across the TAF
sites on Saturday. Have prevailing showers with tempo or prob30 TSRA
at times where probability of thunderstorms is a little higher.
Cannot rule out thunder at any time of the day however. Cannot rule
out brief MVFR cigs and vsbys as well during the day. Winds will gust
through the day on Saturday as well.

OUTLOOK...Thunderstorms are possible Saturday evening through
Saturday night and then again on Tuesday and Wednesday.

&&

.ILN WATCHES/WARNINGS/ADVISORIES...
OH...None.
KY...None.
IN...None.

&&

$$

DISCUSSION...McGinnis
AVIATION...08