Toledo Weather

Lucas and Wood Counties

link
063
fxus61 kcle 291145
afdcle

area forecast discussion
national weather service cleveland oh
745 am edt sat aug 29 2026

.what has changed...
no significant changes from previous forecast cycle.

&&

.key messages...
1) warming temperatures this weekend into next week could bring
heat indices greater than 95f to portions of the area, with
heat headlines possible.

2) active weather pattern focused along the periphery of the
upper ridge could bring some strong storms and heavy rainfall to
the region next week, although confidence remains low on
specific impacts to the local area.

&&

.discussion...
key message 1...
models continue to show mid/upper level ridging building into
the great lakes and ohio valley by early next week. high
temperatures reaching the upper 80s to low 90s is possible
monday through wednesday, with heat indices in the mid 90s
possible. nbm probabilities for heat indices greater than 95f
peak on wednesday, with elevated probs tuesday and thursday as
well. heat headlines are not out of the question at this point,
especially in the western/southwestern portions of the area, but
probs of heat indices greater than 100f remain low at this
time. heat impacts could be elevated with even 95f heat indices
given the time of year. realizing these temperatures will be
contingent on shower/thunderstorm activity and resultant cloud
cover, however at this time convection is expected to be
primarily focused north of the area tuesday and wednesday.

key message 2...
despite model solution convergence on building ridge into the
great lakes region next week, confidence remains low on
potential for organized convection that could periodically
impact the area. a warm front will lift north into the area
sunday, with organized convection possible upstream across the
central great lakes sliding southeast along this front. models
are a bit further north with this activity than 24 hours ago,
which would keep most of this activity north of the forecast
area. the overall pattern looks to become more northwest flow
through midweek vs. the more zonal mid/upper level pattern
reflected by last night`s model runs. despite this, the best
mid/upper flow should remain north of the area during this time,
although organized convective complexes may favor a track
towards the area if sufficient destabilization manifests. the
best precip chances will be thursday as a cold front pushes
south into the area as a potent mid/upper trough/low digs
southeast towards the lower great lakes/new england.

&&

.aviation /12z saturday through wednesday/...
vfr expected through the taf period. scattered to broken high
clouds are expected with some diurnal scattered clouds around
5kft possible this afternoon. winds will be light around 5-10
knots out of the south through the taf period with a lake
breeze likely at kcle and keri this afternoon through 01-02z.

outlook...non-vfr possible sunday night into monday with showers
and thunderstorms and again on wednesday.

&&

.marine...
quiet marine conditions are expected through the weekend with high
pressure building overhead and drifting eastward through sunday
evening. a warm front will move north across lake erie on monday
that will bring potential for showers and thunderstorms. through
wednesday night, winds will be out of the south to southwest
generally between 5-15 knots with waves 2 feet or less. low pressure
will enter the region on wednesday with increasing chances for
showers and thunderstorms across the lake.

&&

.cle watches/warnings/advisories...
oh...none.
pa...none.
marine...none.

&&

$$

discussion...03
aviation...23
marine...23

Fulton and Henry Counties

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fxus63 kiwx 291323
afdiwx

area forecast discussion
national weather service northern indiana
923 am edt sat aug 29 2026

.key messages...

- mainly dry and trending warmer this weekend. slight chances of
showers far northern indiana and southern lower michigan
tonight and sunday.

- heat and humidity increases into next week with afternoon heat indices
expected to reach well into the 90s for many. heat indices
may approach 100 degrees for portions of the area tuesday and
wednesday afternoons.

- a primarily dry pattern should continue into at least the
first half of next week, with chances of showers and
thunderstorms during the middle and latter portions of the
upcoming work week.

&&

.update...
issued at 917 am edt sat aug 29 2026

area of showers and thunderstorms, currently across eastern ia
into southwest wi, will keep moving ese today. the leading edge
being rather high based and showing up as little more than
sprinkles on obs. as it approaches, it will encounter an even
drier airmass in the low levels as well as outrun the better low
level flow and instability gradient. while some cams show some
light precip making it in this afternoon, not overly confident
right now with only pops continuing today across the north as
some redevelopment upstream could graze out northern areas.

clouds will steadily increase from the blowoff of the convection
to dim the sun somewhat.

&&

.discussion...
issued at 320 am edt sat aug 29 2026

overall no major changes in forecast thinking from the past several
cycles. low chances of rain showers for northern locations are
expected tonight through sunday. a warming trend still remains of
high confidence this weekend into early next week. heat indices from
the mid 90s to 100 are possible tuesday and wednesday afternoons.

an expansive low level anticyclone persists this morning from
western new york into southern missouri. little movement in
this anticyclone is expected through tonight as local area
remains downstream of mid/upper level ridge axis across the
central and northern plains.

a strong low level jet in vicinity of the upper level ridge axis
across the northern plains has led to development of convection
early this morning across eastern south dakota. this convection
should augment a smaller scale short wave progressing through this
ridge axis, and upper level wave pattern remains supportive of
this short wave dropping east-southeast to the southern great
lakes later this afternoon/early evening. a pocket of enhanced
mid level westerlies associated with this convectively enhanced
short wave should shift across the southern great lakes region
tonight with a period of sharp mid level moisture advection. low
level moisture advection will be a bit more limited given what
should remain some unfavorable low level flow trajectories
arising from the persistence of the low level anticyclone. this
evolution should allow for some very weak elevated instability
to shift eastward across southern/central lower michigan this
evening. passage of this short wave, broad isentropic upglide,
and weak elevated instability arising from elevated moisture
transport could be enough for a few showers across the north
tonight.

stronger southwesterly low level flow from the plains will migrate
eastward to the mid ms valley/southern great lakes on sunday with
some increase in isentropic lift. difficult to discern much else in
terms of more pronounced mid/upper level forcing by this time,
but overall pattern with advective forcing seems to support at
least some slight chance pops across the northern half of the
area. an isolated thunderstorm is possible, but better low level
moisture transport and more pronounced mucapes should reside
back across the corn belt. it will be noticeably warmer on
sunday with high temperatures into the middle 80s. with better
moisture transport still displaced to the west, sfc dew points
should be limited to the mid 60s locally.

for sunday night into monday, some subtle positive height tendencies
are expected across the western great lakes downstream of more
substantial upper trough tracking across southern
saskatchewan/manitoba. eastward progression of the upper ridge axis
and this upper trough riding this ridge should result in some
veering of low level flow late monday and eastward advection of
richer low level moisture across corn belt/mid ms valley. this
period will also mark the beginning of a stronger mid level thermal
ridge building across the area. a few showers and storms are
possible as this mid level thermal ridge builds in later monday
night but confidence in precip is low. the main weather story for
tuesday/wednesday will focus on building heat and humidity with
a potential of heat indices from the mid 90s to around 100 each
afternoon.

on wednesday, the aforementioned upper trough will be tracking
across the western great lakes and eventually eastern great lakes
wednesday evening. an associated frontal boundary may be focal point
for isolated-scattered showers and storms somewhere across great
lakes region, but questions remain as to instability magnitudes
given presence of warm mid level thermal profiles and good
possibility that sfc/near sfc convection is suppressed. may need
to watch for any southward migrating outflows from great lakes
convection aiding in convective development later wednesday.

a period of cold advection is expected wed night/thu as this
front drops into the region. medium range guidance deterministic
solutions differ sharply by next thu/fri, but overall ensemble
mean trend is for some subtle amplification of longwave western
conus trough-central conus ridge-eastern conus trough pattern.
multi-ensesmble mean position of upper ridge axis is west of the
local area which would keep greater heat concerns west of the
local area thursday through saturday. however, occasional short
waves in northwest flow aloft and potential episodes of positive
low-mid level theta-e advection accompanying these waves may
provide some additional chances of rain in the days 5 to 7
period.

&&

.aviation /12z tafs through 12z sunday/...
issued at 546 am edt sat aug 29 2026

a short wave trough will get some increase in strength this
morning from ongoing convection across southern
minnesota/northwest iowa. this feature is expected to shift
east-southeast to the southern great lakes region later this
afternoon/early evening. most of the notable moisture transport
in advance of this short wave will be more mid level in nature
with some very weak elevated instability likely to develop
across far northern indiana this evening. approach of this short
wave and weak elevated instability could lead to some isolated
showers in ksbn vicinity late afternoon and tonight, but
confidence remains too low for taf inclusion. otherwise,
increasing clouds today with broad mid level warm advection
resulting in mid level ceilings. winds will remain light this
period due to persistence of expansive low level anticyclone.

&&

.iwx watches/warnings/advisories...
in...none.
oh...none.
mi...none.
marine...none.

&&

$$

update...fisher
discussion...marsili
aviation...marsili

Monroe and Lenawee Counties

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951
fxus63 kdtx 291046
afddtx

area forecast discussion
national weather service detroit/pontiac mi
646 am edt sat aug 29 2026

.key messages...

- seasonable temperatures with dry weather through most of the day
today.

- increasing chances for showers and storms tonight through
tomorrow. shower and storm chances continue through the early week.

- humidity builds for the early to mid week period.

&&

.aviation...

surface high pressure moves to the atlantic coast today bringing vfr
conditions and a southwest wind. an slight increase in pressure
gradient will bring speeds up to around 10 knots into the afternoon.
warm/moist advection will lead to increasing coverage of mid and
high clouds with some potential for lower vfr ceilings during peak
heating. upstream showers and thunderstorms will move across the
midwest with some potential for weakening activity to reach parts of
southeast michigan tonight. mbs and potentially fnt will have a low
chance for showers towards 06z.

d21/dtw convection...no convection is forecast through today.

.dtw threshold probabilities...

* none.

&&

.prev discussion...
issued at 326 am edt sat aug 29 2026

discussion...

rapid thunderstorm development is ongoing across the northern plains
early this morning along the nose of a strengthening southerly llj.
this activity is expected to organize into an mcs and progress
through the upper midwest today before traversing into the great
lakes tonight into early tomorrow. given little to no instability
across the great lakes, a weakening trend of this complex remains
favored, although latest hi-res guidance brings some increasing
confidence that portions of the mcs can reach southeast michigan.

this southerly low-level flow across the plains will fold from iowa
into wisconsin through the morning hours and while the
aforementioned mcs is expected to outpace the nascent moisture
source, the nocturnal reinforcement of the llj could support
redevelopment or reinvigoration of showers and embedded
thunderstorms along the backside of the mcs despite limited
instability. this can support rain and thunderstorm chances into the
early afternoon across se mi. additionally this corridor of enhanced
theta-a will strengthen isentropic ascent along or north of the i-69
corridor, providing continued support for showers and thunderstorms
into the latter half of the day. development along this convergent
boundary in the afternoon/evening would likely be a little more
localized. overall there remains uncertainty regarding how these
individual potential rounds of precipitation will evolve and
overlap, but confidence has increased in a considerably more
unsettled sunday.

given the above, confidence is increasing that nbm temperatures are
likely overdone on sunday. an active convective pattern and
persistent cloud cover will limit meaningful insolation. if the more
active setup plays out as projected, highs will be capped in the
70s, with low 80s possible only where coverage is reduced for a
longer period of time.

a very moist and active pattern will persist in the early and
midweek period. ensemble guidance highlights strong west to east
integrated water vapor transport across the region into wednesday.
pw values of 1.75 to 2.00" and warm-cloud depths approaching 13kft
will support efficient rainfall production. mid-level disturbances
within quasi-zonal flow under this setup will bring multiple
opportunities for showers and thunderstorms. repeated convection
along the same areas will bring a localized flooding risk. in the
same regard for sunday temperatures, early week highs will be
conditional on cloud coverage and shower chances. temperatures will
likely need to be tempered down if new guidance highlights se mi as
a susceptible corridor for repeated precipitation.

marine...

influence of high pressure wanes this morning as it shifts to the
northeast with the central great lakes holding on its westernmost
fringe. this allows for modest southwest winds to develop during the
day with gusts holding aob 20kts, save for central lake huron where
favorable fetch could allow for up to 25kts. active pattern returns
by sunday as developing low pressure over the northern plains lifts
a warm front through the area ushering in a more humid airmass
leading numerous shower/storm chances sunday into monday.

&&

.dtx watches/warnings/advisories...
mi...none.
lake huron...none.
lake st clair...none.
michigan waters of lake erie...none.
&&

$$

aviation.....aa
discussion...am
marine.......kdk


you can obtain your latest national weather service forecasts online
at www.weather.gov/detroit.