Lucas and Wood Counties
link
366
fxus61 kcle 090740
afdcle
area forecast discussion
national weather service cleveland oh
340 am edt tue jun 9 2026
.what has changed...
decreased qpf through wednesday morning as coverage of showers and
thunderstorms this afternoon and evening will be fairly isolated to
scattered.
&&
.key messages...
1) daily chances for showers and thunderstorms continue into the
weekend. highest chances for precipitation will be this afternoon
and evening and thursday afternoon and evening.
2) summertime heat and humidity enter the region with peak heat
index values approaching 100 degrees by mid-week. slightly cooler
behind a cold front friday into the weekend.
&&
.discussion...
key message 1...
a shortwave aloft coupled with a surface warm front will lift
east across the upper ohio valley today. showers and thunderstorms
are expected to move through the region through the day today.
coverage of showers/storms will remain isolated to scattered
with pops generally in the 40-60% range through tonight. near
record high pwat values in a moisture rich airmass will provide
a favorable environment for any shower/storm that develops to be
capable of producing heavy rainfall. given remaining
uncertainty with timing and coverage of showers/storms, any
flooding potential will be very localized or confined to areas
where training showers/storms occur.
any storms that occur this afternoon and evening should remain below
severe limits, but can`t rule out an isolated stronger thunderstorm
given moderate instability (800-1200 j/kg sbcape) and deep-layer
shear of 20-25 knots. as for wednesday, isolated showers and
thunderstorms may develop during the afternoon and evening hours
given the moist and unstable airmass. the 00z href shows increased
instability (2000-2500 j/kg sbcape) and deep-layer shear increasing
to 25-30 knots. a few severe storms may be possible with primary
hazards of damaging wind gusts and large hail. spc has highlighted
our cwa in a marginal risk (level 1 of 5) for severe weather on
wednesday.
a cold front will push towards the region during the day on thursday
with another period of afternoon showers and thunderstorms expected
to develop ahead of the front. spc has included the entire forecast
in a marginal risk (level 1 of 5) for severe weather on thursday.
key message 2...
anticipate a period of above normal temperatures with hot and humid
conditions through the end of the week. summertime temperatures with
afternoon highs in the upper 80s to lower 90s will be coupled with
dew points in the upper 60s to lower 70s. heat indices will also be
on the rise through the week with peak heat index values approaching
100f wednesday and thursday. limited overnight relief as overnight
lows will settle in the upper 60s to lower 70s. early season heat is
oftentimes more dangerous and can pose a greater risk for heat-
related illness. stay hydrated and take frequent breaks out of the
sun and in cooled locations! temperatures will fall behind cold
front on friday with cooler highs in the mid 80s expected through
the weekend.
&&
.aviation /06z tuesday through saturday/...
the aviation forecast continues to be tricky, largely because of
the fact that the upper level trough and warm front coming
through the region during the period will be producing off and
on and isolated to scattered convection through much of the
period. this creates an issue where it is not nearly enough for
prevailing or even tempo groups, so the use of prob30 becomes
the best play. however, it could be used in a large portion of
the taf period for most of the terminals, so the attempt here is
to isolate the best chance of a terminal experiencing any sort
of convective activity. that said, towering cumulus should be
expected for most of the period, as should lowering ceilings
to largely mvfr, and possibly ifr overnight. winds become gusty
15-25kts out of the southwest during the daytime heating hours.
amds should be expected.
outlook...periods of non-vfr likely in occasional showers and
thunderstorms through friday.
&&
.marine...
offshore winds today increase to 15kts with wave heights increasing
to 1-2ft away from shore in the nearshore zones. beginning tonight,
these winds will become southwesterly 10-15kts through friday. wave
heights in the western and central basins, where southwesterly winds
are more offshore in nature, will be less than a foot adjacent to
the shore and will increase to 1-2ft away from shore in the
nearshore zones. cleveland eastward, wave heights will be 1-2ft for
the entire nearshore zone with winds parallel to the shoreline.
&&
.cle watches/warnings/advisories...
oh...none.
pa...none.
marine...none.
&&
$$
discussion...13
aviation...26
marine...26
Fulton and Henry Counties
link
288
fxus63 kiwx 090944
afdiwx
area forecast discussion
national weather service northern indiana
544 am edt tue jun 9 2026
.key messages...
- heat and humidity on the increase through thursday, with highs
in the mid-upper 80s and low 90s. heat indices on wednesday
and thursday will be around 100 degrees. lows will be in the
60s, low- mid 70s.
- daily chances (generally 40-80 percent) for showers and storms
this week. severe weather potential exists for both wednesday
and thursday during the late afternoon-evening and overnight
hours. there is higher confidence in the threat materializing
thursday evening into the overnight hours, especially west of
i 69. damaging winds and large hail are the primary threats. a
tornado or two may be possible, especially thursday
evening/night.
- lower chances (20-30 percent) for showers and storms return
sunday afternoon into monday, with temps cooling into the low
to mid 80s with decreased humidity.
&&
.discussion...
issued at 542 am edt tue jun 9 2026
main change from previous forecast: spc outlooks today-thu have been
upgraded from their previous status.
-today: a marginal risk/general thunder...marginal risk only in
white county, in this afternoon. isolated strong to severe storms
are possible, but confidence is low due to a lack of large scale
support.
-wednesday afternoon-overnight: a slight risk of severe weather for
areas along and north of us 24, mainly west of i 69. there is a
marginal risk elsewhere. damaging winds and large hail are the main
threat. confidence is low to medium in severe weather occurring.
-thursday afternoon-overnight: an enhanced risk of severe
weather for the far western forecast area (especially west of
in 15/us 31) and a slight to marginal risk elsewhere,
decreasing threat with eastward extent. damaging winds and
large hail are the main threat. a tornado or two cannot be
ruled out-especially in the enhanced area. confidence is medium
in severe weather occurring.
details...
today...as of this writing, there are numerous showers and isolated
thunderstorms associated with a northward lifting warm front--mainly
west of i 69 but especially west of us 31. expect this activity to
lift north and east through the late morning hours, with southwest
winds shifting west and lightening up behind a weakening trough late
this afternoon and evening. intensity should weaken as the boundary
moves eastward through the morning as we are into the more stable
time of day initially, with redevelopment possible this afternoon
along the incoming boundary during daytime heating. models disagree
on the exact placement of the showers/any storms, though they all
have some sort of activity today. that being said, some locations
may see more prolonged gaps in more scattered-numerous coverage than
others-with partly to mostly cloudy skies. spc clipped our far sw
cwa (white county, in) in a marginal risk today as they are closer
to the best axis of instability. suspect we`ll see potential into
the afternoon for a couple stronger storms further west/south as mid-
level lapse rates steepen to about 7c/km. gusty winds and some large
hail are possible-mainly close to the small marginal risk.
confidence is lower in the exact placement as models are quite
variable with where the focus will become if it doesn`t end up being
more widely scattered/isolated. highs will climb into the mid-upper
80s for most areas today with heat indices entering into the upper
80s, low-mid 90s for area mainly along and south of us 24. of
course, these could end up lower if we have more expansive cloud
cover and shower/storm coverage.
for wednesday...spc outlook is a slight risk for severe weather in
areas along and north of us 24, mainly west of i 69. there is a
marginal risk elsewhere. damaging winds and large hail are the main
threat. confidence is low to medium in severe weather occurring-best
potential in the slight risk area. our area is on the periphery of
the upper level ridge/surface high to the se by wednesday
afternoon/evening. shortwaves ripple through this flow in the
morning/early afternoon so there may be some activity through early
afternoon in portions of the area (per the rap and a few other
models). the hrrr stays mostly dry except a few cells popping with
daytime heating in mid-late afternoon (isolated). it brings in a
line or cluster of storms in the far west/northwest (especially near
lake mi) sometime between 5pm and 11pm edt. given there is abundant
moisture/instability around and if we can break through the initial
ridging aloft (with a shortwave or two to limit capping)...there
could be scattered/isolated strong-severe storms. the shear
increases towards the afternoon, in addition to steeper (7-8c/km)
500-700mb lapse rates building in from the west certainly by late
evening. damaging wind gusts are the most likely threat (15 percent
probs at spc)--larger hail will be more likely further west of our
area. spc does have the area along the lake mi shore and into
northern cass county, mi in the 2 percent tornado
probabilities...with 25-40kt 0-6km bulk shear/and a bit of helicity
along the incoming boundary. per the spc discussion the storms could
initially be more supercellular in il etc and move eastward where
they transition to more of a line segment with our indiana classic
spin ups possible. it`s possible we see little-no activity until
after 8 pm edt, then a drop off in intensity after 11 pm edt as
conditions become less favorable. given uncertainty in the storm
mode at the point of entry into our cwa and the later timing
possibility-confidence is low to medium (greatest in the far west).
high temperatures/heat indices wednesday will depend on the amount
of convection/cloud cover that may limit temperatures...but for now
have mid-upper 80s and a couple spots in the low 90s for highs. this
brings heat indices up to around 100 degrees. an advisory will be
needed if we can materialize these temps. held off for now given
lower confidence in early daytime clouds/weather.
for thursday afternoon/overnight...spc has an enhanced risk of
severe weather for the far western forecast area (especially west of
in 15/us 31) and a slight to marginal risk elsewhere, decreasing
threat with eastward extent. damaging winds and large hail are the
main threat. a tornado or two cannot be ruled out-especially in the
enhanced area. confidence is medium in severe weather occurring. the
majority of the day could end up being dry as we are beneath a bit
of ridging in the mid/upper levels, so beyond some morning activity
lingering or just a few isolated afternoon cells popping in the
blistering heat/humidity during the late afternoon, the main show
will likely be after sunset. highs thursday will be in the upper 80s
and low-mid 90s (hottest just inland from lake mi and in nw oh).
heat indices once again will be around 100 degrees, possibly
prompting the need for a heat advisory (especially given wed may
also be advisory level).
storms take off in mn/wi/il and progress eastward within a strongly
forced and moist, unstable environment with high deep layer
shear/strong low level shear and steep mid-level lapse rates. these
storms (likely supercells and/or bowing segments) will move east-
northeast with a surface low through the overnight. models did slow
the progression of this system/associated storms from previous
runs...which means we are on the border of less favorable timing for
severe threat in terms of maximized instability. outside of maybe a
few isolated storms popping in the afternoon, it`s probably going to
be closer to 8-10 pm edt before the greatest threat arrives in the
west. per the nam and a couple others...it could be as late as 11 pm
to 1 am edt for the enhanced area further west, progressing e-se
into the morning.
additionally, for our area, mid level lapse rates remain around 6.5-
7c/km...but it depends on the model (some have 5.5 to 6.5c/km at
least in our area...not as favorable). storms will diminish in
intensity somewhat as they go eastward into the overnight/early fri
am hours. with any supercells or bowing segments of course comes the
potential for a tornado or two, which is certainly possible given
the abundant low level moisture and strong ll shear. confidence
stays medium due to the aforementioned timing delays.
friday into early next week will be cooler and less humid, with low-
end (20-30 percent) chances for showers and storms mainly fri am and
again sun/mon. highs will be in the upper 70s, low-mid 80s with the
coolest and least humid conditions towards sun/mon.
&&
.aviation /06z tafs through 06z wednesday/...
issued at 150 am edt tue jun 9 2026
have mvfr/vfr conditions predominantly through the period,
eventually dropping down to ifr for a time with overnight cooling
and excessive humidity. showers and storms moving through ksbn,
lightning activity has diminished some in the last 15 minutes
but lightningcast data suggests a 10-30 prob of a lightning
strike so kept shra/vcts with tempo for 2sm/bkn009 (based on
upstream obs). it`s possible we pop back up to vfr again briefly
before lower ceilings become more persistent.
could be a shower or thunderstorm at kfwa but looks more likely
between 10-14z and then again tomorrow afternoon/overnight. have
vfr conditions becoming mvfr towards 8-9z, with a tempo for
showers and some ifr ceilings. given marked decrease in
lightning activity recently, think that should hold without need
for mention of thunder.
&&
.iwx watches/warnings/advisories...
in...none.
oh...none.
mi...none.
marine...none.
&&
$$
discussion...mcd
aviation...mcd
Monroe and Lenawee Counties
link
651
fxus63 kdtx 090804
afddtx
area forecast discussion
national weather service detroit/pontiac mi
404 am edt tue jun 9 2026
.key messages...
- showers and thunderstorms this afternoon into the evening will
pose a locally heavy rainfall and isolated damaging wind gust threat.
- heat and humidity builds in wednesday and thursday. afternoon
temperatures are expected to reach the low 90s with heat indices
potentially climbing into the upper 90s. a heat advisory may
eventually be needed.
- thunderstorms will be possible wednesday and thursday. the greater
severe thunderstorm threat will be late thursday/thursday night with
a slight risk in place for all of southeast michigan.
- not as warm and much less humid friday through the weekend.
&&
.discussion...
mid level low pressure circulation will move across the upper
peninsula today and drag a weak frontal zone across southeast
michigan this afternoon. a few showers/isolated thunderstorms are
preceding this front this morning with the lead vorticity and thetae
advection. the low level jet will help carry and an impressive
moisture rich environment into the area today. pwats from observed
soundings last evening at ilx and dvn came in at 2.01 inches and 1.91
inches respectively. this airmass is arriving locally this morning
along with the low 70s dewpoints being observed lifting into lower
michigan. the moisture and inbound front will support high pops
across the area that increase this morning and carry into early
evening. favorable diurnal timing will yield cape values around 1500-
2000 j/kg helping support stronger updrafts. limiting factors that
will preclude a mention of a greater severe weather threat will be
weak bulk shear at 20-25 knots and weak lapse rates. the warm cloud
depths and moist adiabatic lapse rates point do point towards a
greater heavy rainfall threat, which in turn brings potential for
strong gusty winds from precip loaded downburst. guidance continues
to point towards pockets of 1-2 inches or greater of qpf that will be
possible focused between 16z and 04z today. confidence is low as to
where these localized higher totals will possibly fall. southeast
michigan remains in general thunderstorms for the spc convective
outlook for today.
ridging will translate over the central great lakes wednesday into
thursday. increasing southwest flow will carry an even warmer
airmass into the region with 850mb temperatures climbing to around
20c. this leads to an increase in surface temperatures reaching the
low 90s. add in the persisting humid airmass with dewpoints in the
upper 60s to mid 70s and heat indices should approach 100 degrees
and bring potential for heat headlines. the other concern for
wednesday will be the severe weather potential, which appears to be
towards the later part of the day as a shortwave arrives on the
heals of the passing ridge. additional forcing from the increasing
low level jet may be enough to trigger convection in the backdrop of
greater subsidence and capping with the upper ridging. tail end of
the href suggests some convection is able to develop which would
pose mainly a wind and hail threat. strong instability (2000-3000
j/kg of mlcape) and steeper mid level lapse rates will be available,
but shear remains lacking wednesday evening. a marginal risk for all
of southeast michigan is in place for wednesday.
a brief lull in precip looks possible thursday afternoon with
afternoon conditions remaining hot and humid with heat indices again
approaching 100 degree. the greater severe weather threat is also
slated for late thursday and thursday night. a strong wave will
cross the western great lakes into ontario and send a cold front
through the region. timing will be less favorable after peak
heating, but models do offer enough instability with strong wind
fields yielding good shear and more favorable lapse rates. this set
up points towards a cold pool driven mcs along the front that would
arrive locally pending the environment remains favorable. a slight
risk for all of southeast michigan is in place for thursday.
the cold front sweeping through will drive the hot and humid airmass
off to the east and bring more seasonable conditions for friday into
the weekend. lower confidence forecast over the weekend as troughing
holds over the midwest brings low end precip chances. afternoon
temperatures by sunday are forecast to be back down into the 70s and
low 80s.
&&
.marine...
weak low pressure tracks across lower mi today and reaches lake
huron late this evening. scattered to numerous showers and
thunderstorms will spread across the area with wind predominantly
out of the southeast near 10 kt. isolated storms may produce winds
in excess of 34 kt. a warm and unstable air mass will take residence
wednesday and thursday, bringing additional chances for showers and
thunderstorms. prevailing wind will be out of the west and southwest
with potential for gusts upwards of 20 kt at times, especially over
the shallower, warmer waters of saginaw bay, western lake erie, and
lake st. clair. a cold front passes through the region on friday and
brings a brief period of drier conditions.
&&
.hydrology...
a moisture rich environment will pose a locally heavy rainfall
threat today. while most ensemble members put qpf amounts generally
within 0.25" to 0.75", the environment will be supportive of pockets
of 1.00" to 2.00" rainfall amounts or greater. highly variable
amounts can be expected across southeast michigan. convective
rainfall rates will have potential to reach 1.00" or greater at
times, especially during the afternoon and early evening. low
confidence exists as to where these heavier pockets of rainfall
would fall, but the environment will certainly support isolated
flash flooding potential especially if it occurs over any urban
areas or flood prone areas.
&&
.prev discussion...
issued at 1136 pm edt mon jun 8 2026
aviation...
a warm front will be driven northward across the terminals tonight
in advance of an upper level short wave trough. this warm front will
mark the arrival of a moisture laden and unstable atmosphere. the
initial influx of moisture will mainly be in the mid levels,
resulting in increasing vfr based clouds and some scattered showers.
there is forecast to be a better push of ascent along a lead mid
level short wave early tuesday morning coinciding with the the
advection of some elevated instability. this will warrant a chance
for thunderstorms in the tafs, focused mainly between 09z and 13z
tuesday. the influx of low level moisture during the morning will
increase the probabilities for mvfr based ceilings. increasing
diurnal instability within the very moist and uncapped atmosphere
will support numerous showers and thunderstorms during the day
tuesday, with the most probable time period for thunderstorms being
during the afternoon. convection within the high ambient moist
environment in the presence of diurnal mixing will likely result in
wide fluctuations in flight categories during the day tuesday.
d21/dtw convection...with support of a few hi res model solutions, a
chance for thunderstorms remains values across the airspace between
09z and 13z. occasional showers and scattered thunderstorms are then
expected throughout the day tuesday. precise timing and coverage
carries a low probability at this time. the forecast will target
afternoon, which is the peak in the daytime heating cycle, for
thunderstorms across the airspace.
dtw threshold probabilities...
* low in ceilings aob 5000 feet tonight. high tuesday.
* low in thunderstorms overnight and tuesday morning. moderate
tuesday afternoon.
&&
.dtx watches/warnings/advisories...
mi...none.
lake huron...none.
lake st clair...none.
michigan waters of lake erie...none.
&&
$$
discussion...aa
marine.......tf
hydrology....aa
aviation.....sc
you can obtain your latest national weather service forecasts online
at www.weather.gov/detroit.
The three regional National Weather Service offices that cover the Toledo area include Cleveland, Detroit/Pontiac, and Northern Indiana.