Alert archive / Ohio / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 113, NWS Cleveland, OH

June 18, 2025Cuyahoga County, Lorain County, Medina County, Ohio

NWS Cleveland, OH issued this severe thunderstorm warning at Jun 18, 2025, 8:18 PM EDT for Cuyahoga County, Lorain County, Medina County, Ohio. It was in force for 72 min. 15 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 18, 2025, 8:18 PM EDT (00:18 UTC)
Expired
Jun 18, 2025, 9:30 PM EDT
In force
72 min
Issued by
NWS Cleveland, OH
Area
Storm-based polygon
Tornado
Possible
Damage threat
Considerable
Hail
0.75 in
Wind
70.0 mph

Counties Cuyahoga County, OH, Lorain County, OH, Medina County, OH

The radar

The Cleveland radar (KCLE), 13 km from the middle of the area, began a volume at 00:16 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Jun 18, 8:32 PM EDTTSTM WND DMG3 W Burbank, OHLarge tree snapped and fell across Repp Road in West Salem.
Jun 18, 8:35 PM EDTTSTM WND DMG2 Wnw Kipton, OHDelayed report - trees down along Bates Road. Damage to roof of a barn.
Jun 18, 8:43 PM EDTTSTM WND DMG4 Ene Oberlin, OHDelayed report - trees and telephone pole down near Carlisle Reservation.
Jun 18, 8:47 PM EDTTSTM WND GST 813 Ese South Amherst, OHMeasured gust at the Lorain County Airport.
Jun 18, 8:49 PM EDTTSTM WND DMG3 W Pigeon Creek, OHSeveral trees down. Time estimated via radar.
Jun 18, 8:51 PM EDTTSTM WND DMGElyria, OHExtensive tree and power-line damage reported across Elyria.
Jun 18, 8:52 PM EDTTSTM WND DMG1 Wsw North Ridgeville, OHDelayed report of several trees down.
Jun 18, 8:55 PM EDTTSTM WND GST 611 Ne North Ridgeville, OH61.5 mph measured gust.
Jun 18, 8:56 PM EDTTSTM WND DMG2 Sse Sheffield, OHDelayed report - Swath of tree damage through apartment complex.
Jun 18, 8:56 PM EDTTSTM WND DMG2 Sw North Olmsted, OHDelayed report - large tree limbs down.
Jun 18, 8:59 PM EDTTSTM WND GST 621 Ne North Ridgeville, OHMesonet station GW5974 NORTH RIDGEVILLE.
Jun 18, 9:12 PM EDTTSTM WND DMG1 Wsw Parma Heights, OH8 inch diameter tree downed on two houses in Parma Heights.
Jun 18, 9:13 PM EDTTSTM WND DMGParma Heights, OHTrees downed in Parma Heights.
Jun 18, 9:14 PM EDTMARINE TSTM WIND 501 Ene Lakewood, OHpublic weather station.
Jun 18, 9:19 PM EDTTSTM WND DMG2 Sse Valley View, OH4 healthy trees snapped along Alexander Road near Hub Park.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched 15 storm reports to this severe thunderstorm warning; the first came 14 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 18, 4:09 PM EDTSevere Thunderstorm WatchSPC6 hr
Jun 18, 8:14 PM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 00:00Z, 0.3 hours before the alert went out and 173 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Pittsburgh, PA at 00:00Z on 2025-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1783 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Pittsburgh, PA at 00:00Z on 2025-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 195 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1783 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
755 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
195 m²/s²
0-3 km storm-relative helicity
213 m²/s²
Significant tornado parameter
0.0
Supercell composite
8.4

Open this sounding in Storm Lab

The text

As transmitted.

272 
WUUS51 KCLE 190018
SVRCLE
OHC035-093-103-190130-
/O.NEW.KCLE.SV.W.0113.250619T0018Z-250619T0130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Cleveland OH
818 PM EDT Wed Jun 18 2025

The National Weather Service in Cleveland has issued a

* Severe Thunderstorm Warning for...
  Cuyahoga County in northeastern Ohio...
  Medina County in northeastern Ohio...
  Lorain County in north central Ohio...

* Until 930 PM EDT.

* At 818 PM EDT, severe thunderstorms were located along a line
  extending from near Kelleys Island to near Plymouth, moving east at
  55 mph.

  HAZARD...70 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings.

* Locations impacted include...
  Cleveland, Lorain, Elyria, Medina, Vermilion, Western Vermilion,
  Parma, Lakewood, Euclid, Cleveland Heights, Strongsville,
  Brunswick, Westlake, North Royalton, North Ridgeville, Solon, Avon
  Lake, Wadsworth, Warrensville Heights, and Amherst.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4164 8149 4157 8149 4156 8139 4145 8139
      4142 8137 4142 8139 4135 8140 4135 8159
      4128 8157 4128 8169 4099 8169 4099 8217
      4106 8218 4107 8234 4143 8235 4154 8202
      4151 8184 4153 8173
TIME...MOT...LOC 0018Z 254DEG 50KT 4163 8273 4101 8261 

TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH

$$

Saunders
3 follow-up statements
549 
WWUS51 KCLE 190052
SVSCLE

Severe Weather Statement
National Weather Service Cleveland OH
852 PM EDT Wed Jun 18 2025

OHC035-093-103-190130-
/O.CON.KCLE.SV.W.0113.000000T0000Z-250619T0130Z/
Cuyahoga OH-Medina OH-Lorain OH-
852 PM EDT Wed Jun 18 2025

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM EDT
FOR CUYAHOGA...MEDINA AND LORAIN COUNTIES...

At 851 PM EDT, severe thunderstorms were located along a line
extending from near Lorain to 7 miles north of Lodi, moving 
northeast at 45 mph. An 81 mph wind gust was measured in the city of 
Lorain at 7:47 PM.

HAZARD...70 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

Locations impacted include...
Cleveland, Lorain, Elyria, Medina, Vermilion, Parma, Lakewood,
Euclid, Cleveland Heights, Strongsville, Brunswick, Westlake, North
Royalton, North Ridgeville, Solon, Avon Lake, Wadsworth, Warrensville
Heights, Amherst, and Grafton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4164 8149 4157 8149 4156 8139 4145 8139
      4142 8137 4142 8139 4135 8140 4135 8159
      4128 8157 4128 8169 4099 8169 4099 8217
      4106 8217 4112 8226 4143 8235 4154 8202
      4151 8184 4153 8173
TIME...MOT...LOC 0051Z 240DEG 40KT 4146 8222 4114 8202 

TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH

$$

Saunders
680 
WWUS51 KCLE 190054 CCA
SVSCLE

Severe Weather Statement
National Weather Service Cleveland OH
854 PM EDT Wed Jun 18 2025

OHC035-093-103-190130-
/O.COR.KCLE.SV.W.0113.000000T0000Z-250619T0130Z/
Cuyahoga OH-Medina OH-Lorain OH-
854 PM EDT Wed Jun 18 2025

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM EDT
FOR CUYAHOGA...MEDINA AND LORAIN COUNTIES...

At 854 PM EDT, severe thunderstorms were located along a line
extending from near Lorain to 6 miles west of Medina, moving 
northeast at 45 mph. An 81 mph wind gust was measured in the city of 
Lorain at 8:47 PM.

HAZARD...70 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

Locations impacted include...
Cleveland, Lorain, Elyria, Medina, Vermilion, Parma, Lakewood,
Euclid, Cleveland Heights, Strongsville, Brunswick, Westlake, North
Royalton, North Ridgeville, Solon, Avon Lake, Wadsworth, Warrensville
Heights, Amherst, and Grafton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4164 8149 4157 8149 4156 8139 4145 8139
      4142 8137 4142 8139 4135 8140 4135 8159
      4128 8157 4128 8169 4099 8169 4099 8217
      4106 8217 4112 8226 4143 8235 4154 8202
      4151 8184 4153 8173
TIME...MOT...LOC 0051Z 240DEG 40KT 4146 8222 4114 8202 

TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH

$$

Saunders
497 
WWUS51 KCLE 190120
SVSCLE

Severe Weather Statement
National Weather Service Cleveland OH
920 PM EDT Wed Jun 18 2025

OHC093-103-190130-
/O.CAN.KCLE.SV.W.0113.000000T0000Z-250619T0130Z/
Medina OH-Lorain OH-
920 PM EDT Wed Jun 18 2025

...THE SEVERE THUNDERSTORM WARNING FOR MEDINA AND LORAIN COUNTIES IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 300 AM EDT for
northeastern Ohio.

LAT...LON 4164 8149 4157 8149 4156 8139 4145 8139
      4142 8137 4142 8139 4136 8139 4135 8141
      4135 8159 4128 8157 4128 8174 4151 8185
      4153 8173
TIME...MOT...LOC 0120Z 245DEG 56KT 4161 8179 4129 8159 

$$

OHC035-190130-
/O.CON.KCLE.SV.W.0113.000000T0000Z-250619T0130Z/
Cuyahoga OH-
920 PM EDT Wed Jun 18 2025

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM EDT
FOR CUYAHOGA COUNTY...

At 920 PM EDT, severe thunderstorms were located along a line
extending from 8 miles north of Lakewood to near Macedonia, moving
northeast at 65 mph.

HAZARD...70 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

Locations impacted include...
Cleveland, Parma, Lakewood, Euclid, Cleveland Heights, North
Royalton, Solon, Warrensville Heights, Highland Hills, Garfield
Heights, Shaker Heights, Maple Heights, South Euclid, Parma Heights,
Rocky River, Broadview Heights, Brook Park, Mayfield Heights, East
Cleveland, and Fairview Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4164 8149 4157 8149 4156 8139 4145 8139
      4142 8137 4142 8139 4136 8139 4135 8141
      4135 8159 4128 8157 4128 8174 4151 8185
      4153 8173
TIME...MOT...LOC 0120Z 245DEG 56KT 4161 8179 4129 8159 

TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH

$$

Saunders

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Cleveland, OH wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 18, 3:51 PM EDT, 4 hours 27 minutes earlier.

Area forecast discussion, Jun 18, 3:51 PM EDT, 4 hours 27 minutes before
Area Forecast Discussion
National Weather Service Cleveland OH
351 PM EDT Wed Jun 18 2025

.SYNOPSIS...
A cold front will move across the region this evening and
overnight. A strong upper level ridge of high pressure will
build over the Ohio Valley this weekend into early next week
and bring a Heat Wave across the region.

&&

.NEAR TERM /THROUGH THURSDAY NIGHT/...
3:45 PM Update:

Key Messages:
-Scattered showers and thunderstorms ongoing across parts of
 northern OH and northwestern PA this afternoon will continue to
 be capable of producing locally heavy rain, with an isolated
 severe weather risk, before exiting east into this evening.
-After a break, an arcing line of storms is expected to quickly
 push in from the west-southwest this evening with greater
 potential for severe weather.
-The greatest confidence in severe weather this evening is
 across Northwest OH, where an Enhanced Risk (risk level 3/5)
 for severe weather is in place. The risk gradually diminishes
 east across North Central and Northeast OH, where a Slight Risk
 (level 2/5) is in place to near the PA border. The risk level
 drops off to Marginal (1/5) across Northwest PA.
-The main severe risk this evening will be damaging wind gusts,
 with large hail a secondary risk. There is a lower but non-
 zero potential for tornadoes, especially across Northwest OH.
-Timing into Northwest OH (including Toledo/Findlay) for the
 severe threat is greatest 6-9 PM...across North Central OH
 (including Sandusky, Mansfield, and Lorain) 7-10 PM...in the
 Cleveland-Akron-Canton corridor 8-11 PM...in far Northeast OH
 (including Youngstown) 9 PM-12 AM...and in Northwest PA between
 11 PM-2 AM if storms remain strong that far east.

An MCV over Lake Erie is helping to force a batch of scattered
showers and thunderstorms from the lake into northern OH and
northwestern PA early this afternoon. The environment is most
supportive of heavy rain with this initial round, given skinny
instability profiles, high precipitable water values, and rather
marginal amounts of wind shear. With that said, a couple of
cells have been weakly rotating, so will continue to monitor for
isolated/marginal severe potential with the current activity. A
lull in activity is expected behind this activity for a few
hours into this evening, with warm, humid, and somewhat breezy
conditions. Hopefully everyone enjoys 70-75F dew points...

After the brief break, the main focus for severe weather arrives
from the west this evening. Radar/satellite/water vapor depict
an arcing and strongly-forced band of convection evolving near
the IL/IN border, with plenty of heating taking place ahead of
the line. The strong forcing and continued destabilization
should allow this line to surge into Northwest OH at a strong to
severe intensity this evening. The greatest forcing will pass
just northwest of the region, and timing gradually becomes an
issue farther east as we move towards and past sunset. So, the
greatest and highest-confidence severe threat is across
Northwest OH (in and near the SPC enhanced risk), with the
threat gradually lowering to the east. However, suspect the line
of storms will have enough momentum to remain strong to at
least locally severe to at least the I-77 corridor (even if
they're gradually weakening by then), with a lower-confidence
severe threat across the rest of Northeast OH and perhaps into
Northwest PA. There's certainly a chance hit-or-miss severe
weather occurs all the way east across our forecast area this
evening into tonight, though will need to assess the state of
the incoming storms this evening and environment across the
local area behind this afternoon's storms to say with more
confidence how far east an organized severe threat will persist
this evening. With that said, there are enough "pros" that the
SPC did expand the Slight Risk east to the OH/PA border with
their 12:30 PM convective outlook update. Activity should exit
OH by midnight, if not slightly earlier, with activity exiting
PA around or just after midnight (see timing in Key Messages).

In terms of potential severe hazards this evening, the
combination of moderate instability (1500-2500 J/KG of MLCAPE),
steep low-level lapse rates (0-3km lapse rates of 8-8.5C/km),
marginal to moderate downdraft CAPE of 700-900 J/KG, and
marginal to moderate shear (effective bulk shear 30-35kt and
0-3km shear of 20-30kt with modest SRH) across Northwest OH will
support primarily a damaging wind gust risk with a linear storm
mode. If there are any discrete cells, marginally severe hail
is possible...though the primarily linear mode and poor mid-
level lapse rates (near 6C/km) should limit large hail
potential. Shear is marginal for a tornado threat, though we
will need to watch for any bowing/surging portions of the line
or any rotating discrete cells that get ingested by the line
for a localized tornado risk. As storms push east this evening,
shear will remain similar to the values listed above or may
increase slightly...while instability and low-level lapse rates
gradually weaken farther east as we move past sunset. This will
likely maintain a primarily wind damage risk with surging/bowing
portions of the line farther east across our area...with lower
but non-zero hail and tornado potential. Will also need to
monitor for locally heavy rainfall and flooding with high
precipitable water values remaining in place and some recent
heavy rainfall, though increased flow aloft should keep storms
generally moving this evening and into tonight.

A general lull in activity is expected overnight tonight behind
the round of storms, though with the surface cold front trailing
behind the line of storms there could be some lingering shower
potential overnight tonight. Lows will generally dip into the
mid to upper 60s, with somewhat brisk southwest winds continuing
tonight into Thursday (gusts potentially 25-35 MPH) as low
pressure lifts into the Great Lakes. The axis of the mid and
level trough will swing through our region on Thursday. We will
continue with the chance for scattered rain showers and maybe
some isolated thunder during the day Thursday with the higher
POPs favoring the late morning through mid-afternoon timeframe.
Skinny instability profiles on Thursday could support transient
torrential rain-rates with convection, leading to localized
flooding concerns...especially if training impacts saturated
ground. Rain chances will taper off from west to east during
the late afternoon and evening as the trough axis begins exiting
to the east- southeast. Considerable cloudiness and push of a
slightly cooler, less humid airmass will follow the cold front
passage on Thursday with high temps in the mid to upper 70s.
Lows Thursday night will be on either side of 60 degrees. A
passing shower may push off the lake into Northeast OH/Northwest
PA Thursday night, but most of the area will stay dry.

&&

.SHORT TERM /FRIDAY THROUGH SATURDAY NIGHT/...
The big focus to end the work week and start the weekend will be the
transition into the first heat wave of Summer 2025. A mid/upper
trough will linger over the eastern Great Lakes and Northeast CONUS
Friday while strong subtropical mid/upper ridging amplifies over the
central Plains and Mississippi Valley in response to a closed
mid/upper low swinging into the Pacific Northwest. Northern Ohio and
NW PA will remain under the influence of the cooler mid/upper trough
and NW flow aloft Friday, although increasing southwesterly low-
level flow and resultant warm air advection will already start to
warm both temperatures and dew points compared to Thursday. Look for
highs to reach the upper 70s to low 80s areawide, with mid 80s in NW
Ohio as dew points rebound back into the mid 60s. Lows Friday night
will stay in the mid/upper 60s as dew points continue to increase
and hold up low temperatures.

The transition will really take place Saturday as the mid/upper
ridge further amplifies, with the center of a sub 595 DM H5 high
shifting northeastward across Missouri and southern Illinois. A warm
front will be arcing southeast from Upper Michigan through northern
Ohio early in the day on the eastern periphery of the strong thermal
ridging and associated EML, and this warm frontal boundary will
slowly shift east through the day as the aforementioned thermal
ridge drifts eastward. H85 temps will be approaching 25 C in NW Ohio
by 00Z Sunday per the latest NAM, and this will easily support
surface temperatures reaching the 90s in NW Ohio and upper 80s
elsewhere. Stuck with highs in the low 90s in NW Ohio at this time
for Saturday, but mid 90s are not out of the question if the
aforementioned thermal ridging builds in faster. Continued moisture
advection through the day will boost dew points into the upper 60s
to low 70s areawide, and with the wet ground and building EML
(reducing mixing), dew points have a better chance to stay higher
than normal during the day. This will at least raise heat indices
into the 90s areawide.

One wild card for Saturday will be a possible MCS, or the remnants
of one, riding southeastward down the warm front and into the Lower
Great Lakes. Our location on the eastern periphery of the EML and
associated theta e/instability gradient definitely supports a
complex before the EML and associated strong capping build eastward,
but confidence is low. The environment supports initiation in the
Upper Midwest and northern Great Lakes Friday night on the nose of a
strong low-level jet, but most early guidance suggests the complex
will outrun the best upper support and instability and weaken as it
dives toward PA and NY Saturday morning. There could also be an
outcome where the complex stays stronger and farther west depending
on the strength of the shortwave and location of the gradient. For
now, boosted PoPs slightly in NW PA late Friday night and Saturday,
and kept the rest of the area dry, but it will be monitored.

&&

.LONG TERM /SUNDAY THROUGH WEDNESDAY/...
The mid/upper ridge and associated thermal ridging will firmly build
overhead Sunday and persist through at least Tuesday as the closed
low in the West evolves into a longwave western CONUS trough and
forces the mid/upper ridge to expand downstream across the entire
central and eastern CONUS. Deterministic and ensemble guidance
remain in strong agreement on this evolution, with the H5 high
strengthening to 595-598 DM and sliding over the Ohio Valley Sunday
and Monday, then gradually sinking into the Tennessee Valley and Mid
Atlantic Tuesday and Wednesday. This will support an extended period
of high temperatures in the low to mid 90s, with the wet ground and
strong thermal capping beneath the EML helping to keep dew points
mostly in the 70s (reduced mixing). The worst of the heat will
likely peak Sunday through Tuesday when H85 temps will hover around
22 to 23 C, solidly supporting mid 90s, but even low 90s look to
linger through Wednesday as the ridging gradually flattens and 850
mb temps slowly cool.

The air temperatures will be less important than the consecutive
days of high heat and humidity and resultant heat indices.
Probabilities are increasing for heat indices to reach or exceed 100
in many areas Sunday through Tuesday due to the combination of the
air temperatures and high dew points, with only slight improvement
Wednesday. These values occurring for 3 to 4 consecutive days, the
first extended hot spell of the summer, and minimal relief at night
with low temperatures only dipping into the mid 70s will
significantly increase heat-related impacts to human health and
infrastructure. With all of this being said, the new NWS HeatRisk
product continues to show major impacts by Sunday and extreme
impacts by Monday and Tuesday across all of northern Ohio and NW PA.

Otherwise, strong capping should prevent any convection Sunday and
Monday, but have PoPs gradually increasing for scattered convection
Tuesday and Wednesday as the ridge gradually flattens and a cold
front slowly sinks down from the NW, but confidence in when a
frontal passage will eventually occur is low at this time.

&&

.AVIATION /18Z Wednesday THROUGH Monday/...
Scattered showers and thunderstorms are ongoing from
approximately LPR to MFD points east, with the greatest coverage
over and near Lake Erie. This activity will continue east while
exiting through late afternoon. Lightning, along with brief vsby
reductions to IFR or lower, can accompany storms within this
activity. After a brief lull with breezy south-southwest winds
and mainly VFR conditions, an arcing line of thunderstorms is
expected to surge in from the west this evening. Confidence in
impacts is very high (>80%) at TOL, FDY, and MFD, high (60-90%)
at CLE and CAK, and medium (40-60%) at ERI and YNG. Included
TEMPOs at all sites to indicate potential wind gusts, vsby
reduction, and a best guess at a 1-2 hour timing window of
potential direct impacts. This activity exits east, though a
cold front moves through from west to east late tonight into
early Thursday. This will bring continued potential for shower
activity along the front, with MVFR ceilings likely spreading in
along and behind the cold front into Thursday. Another round of
showers and some thunder is likely Thursday afternoon, though
future cycles will take a better look at that.

South-southwest winds at 7-15kt with a few gusts to 25kt will
continue through this afternoon and early evening. Winds
gradually shift more southwesterly tonight and likely increase a
bit to the 10-18kt range with gusts 20-30kt into Thursday.

Outlook...Non-VFR likely with scattered showers and isolated
storms Thursday afternoon. A large high pressure system will
build over the region over the weekend into early next week with
fair skies and quiet weather.

&&

.MARINE...
A relatively short period of gusty SW winds will occur on Lake Erie
from west to east tonight and Thursday morning as a cold front
approaches and crosses the lake. The SW winds will increase to 15-25
knots first in the western basin around 04Z then in the central
basin by 06Z and in the eastern basin by 08Z, with the strongest
winds lasting about 6 to 10 hours. Issued mainly wind driven Small
Craft Advisories for this wind tonight into early Thursday afternoon
since the bulk of the 3 to 5 foot wave action will be in the
offshore waters. This should keep the rip current risk moderate in
most areas, with some high risk of rip currents possible in the
eastern basin.

Winds will turn NW and decrease to 5-15 knots Thursday afternoon
before turning SW at 5-15 knots by Friday into Saturday. SW winds
will then average 10-15 knots, occasionally up to 20 knots, late
Saturday through Monday

&&

.CLIMATE...
Daily Record High Maximum Temperatures

Date    Toledo         Mansfield      Cleveland      Akron          Youngstown     Erie

06-22   99(1988)       95(1988)       98(1988)       97(1988)       97(1933)       94(1988)
06-23   96(1911)       91(1964)       94(1948)       94(1923)       94(1943)       92(1964)
06-24   95(2005)       93(1933)       96(1952)       95(1923)       93(1952)       92(1952)
06-25   104(1988)      101(1988)      104(1988)      100(1988)      99(1988)       100(1988)

&&

.CLE WATCHES/WARNINGS/ADVISORIES...
OH...None.
PA...None.
MARINE...Small Craft Advisory from midnight tonight to 10 AM EDT
     Thursday for LEZ142>145.
     Small Craft Advisory from 2 AM to noon EDT Thursday for LEZ146.
     Small Craft Advisory from 4 AM to 2 PM EDT Thursday for
     LEZ147>149.

&&

SYNOPSIS...77
NEAR TERM...77/Sullivan
SHORT TERM...Garuckas
LONG TERM...Garuckas
AVIATION...Sullivan
MARINE...Garuckas
CLIMATE...
Hazardous weather outlook, Jun 18, 4:25 PM EDT, 3 hours 53 minutes before
Hazardous Weather Outlook
National Weather Service Cleveland OH
425 PM EDT Wed Jun 18 2025

LEZ061-147>149-167>169-OHZ012>014-022-023-033-089-PAZ001>003-192030-
Ripley to Buffalo NY extending from 5NM off shoreline to US-
Canadian border-Willowick to Geneva-on-the Lake OH-Geneva-on-the-
Lake to Conneaut OH-Conneaut OH to Ripley NY-Willowick to Geneva-on-
the-Lake OH beyond 5NM off shoreline to US-Canadian border-Geneva-on-
the-Lake to Conneaut OH beyond 5 nm off shoreline to US-
Canadian border-
Conneaut OH to Ripley NY beyond 5 nm off shoreline to US-
Canadian border-Lake-Geauga-Ashtabula Inland-Portage-Trumbull-
Mahoning-Ashtabula Lakeshore-Northern Erie-Southern Erie-Crawford-
425 PM EDT Wed Jun 18 2025

This Hazardous Weather Outlook is for Lake Erie, northeast Ohio and
northwest Pennsylvania.

.DAY ONE...Tonight.

There is a marginal risk (level 1 of 5) for the potential of a few
strong to severe thunderstorms this evening into the overnight
across Northeast Ohio and Northwest Pennsylvania. The primary hazard
will be damaging winds and large hail. Localized heavy rainfall may
also be possible.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

A strong upper level ridge of high pressure will build over the Ohio
Valley this weekend into early next week and bring a Heat Wave
across the region. Afternoon temperatures will climb into the lower
and middle 90s Sunday through Tuesday. Heat indices will approach 100
to 103 degrees. Daily record high temperatures may be possible early
next week.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

LEZ144>146-164>166-OHZ009>011-018>021-027>032-036>038-047-192030-
The Islands to Vermilion OH-Vermilion to Avon Point OH-
Avon Point to Willowick OH-
The Islands to Vermilion OH beyond 5 nm off shoreline to US-
Canadian border-
Vermilion to Avon Point OH beyond 5 nm off shoreline to US-
Canadian border-
Avon Point to Willowick OH beyond 5 nm off shoreline to US-
Canadian border-Erie-Lorain-Cuyahoga-Seneca-Huron-Medina-Summit-
Wyandot-Crawford-Richland-Ashland-Wayne-Stark-Marion-Morrow-Holmes-
Knox-
425 PM EDT Wed Jun 18 2025

This Hazardous Weather Outlook is for Lake Erie, north central
Ohio, northeast Ohio and northwest Ohio.

.DAY ONE...Tonight.

There is a slight risk (level 2 of 5) for the potential of severe
thunderstorms this evening into the overnight across north central
and northwest Ohio, generally west of a line from Cleveland to Mount
Vernon. There is an enhanced risk (level 3 of 5) for severe weather
across northwest Ohio this evening. The primary hazard will be
damaging winds and large hail. An isolated tornado threat may be
possible for areas of Northwest Ohio this evening. Localized heavy
rainfall may be possible with these storms tonight.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

A strong upper level ridge of high pressure will build over the Ohio
Valley this weekend into early next week and bring a Heat Wave
across the region. Afternoon temperatures will climb into the lower
and middle 90s Sunday through Tuesday. Heat indices will approach 100
to 103 degrees. Daily record high temperatures may be possible early
next week.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed. Please relay any information about
observed severe weather to the NWS.

LEZ142-143-162-163-OHZ003-006>008-017-192030-
Maumee Bay to Reno Beach OH-Reno Beach to The Islands OH-
Detroit River Lt. to Maumee Bay OH to Reno Beach OH beyond 5NM
offshoreline to US-Canadian border-
Reno Beach to The Islands OH beyond 5NM off shoreline to US-
Canadian border-Lucas-Wood-Ottawa-Sandusky-Hancock-
425 PM EDT Wed Jun 18 2025

...SEVERE THUNDERSTORM WATCH 436 IN EFFECT UNTIL 10 PM EDT THIS
EVENING...

This Hazardous Weather Outlook is for Lake Erie and northwest Ohio.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Severe Thunderstorm Watch.

There is a slight risk (level 2 of 5) for the potential of severe
thunderstorms this evening into the overnight across north central
and northwest Ohio, generally west of a line from Cleveland to Mount
Vernon. There is an enhanced risk (level 3 of 5) for severe weather
across northwest Ohio this evening. The primary hazard will be
damaging winds and large hail. An isolated tornado threat may be
possible for areas of Northwest Ohio this evening. Localized heavy
rainfall may be possible with these storms tonight.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

A strong upper level ridge of high pressure will build over the Ohio
Valley this weekend into early next week and bring a Heat Wave
across
the region. Afternoon temperatures will climb into the lower and
middle 90s Sunday through Tuesday. Heat indices will approach 100 to
103 degrees. Daily record high temperatures may be possible early
next week.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed. Please relay any information about
observed severe weather to the NWS.

In the hours before

Local storm report, Jun 18, 6:49 PM EDT, 1 hour 29 minutes before
Preliminary Local Storm Report
National Weather Service Cleveland OH
649 PM EDT Wed Jun 18 2025

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0553 PM     Tstm Wnd Dmg     2 SSE Cuyahoga Falls    41.13N 81.51W
06/18/2025                   Summit             OH   911 Call Center

            Numerous trees down in Cuyahoga Falls.

&&

KEC
Local storm report, Jun 18, 6:55 PM EDT, 1 hour 23 minutes before
Preliminary Local Storm Report
National Weather Service Cleveland OH
655 PM EDT Wed Jun 18 2025

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0602 PM     Tstm Wnd Dmg     1 E Silver Lake         41.16N 81.44W
06/18/2025                   Summit             OH   911 Call Center

            Trees reported down in Stow.

&&

KEC
Local storm report, Jun 18, 7:01 PM EDT, 1 hour 17 minutes before
Preliminary Local Storm Report
National Weather Service Cleveland OH
701 PM EDT Wed Jun 18 2025

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0605 PM     Tstm Wnd Dmg     1 WSW Tallmadge         41.10N 81.44W
06/18/2025                   Summit             OH   911 Call Center

            Numerous trees down in Tallmadge.

&&

KEC
Local storm report, Jun 18, 7:19 PM EDT, 59 minutes before
Preliminary Local Storm Report
National Weather Service Cleveland OH
719 PM EDT Wed Jun 18 2025

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0713 PM     Tstm Wnd Gst     2 SW Findlay            41.02N 83.67W
06/18/2025  M68 MPH          Hancock            OH   ASOS

&&

Garuckas
Local storm report, Jun 18, 8:01 PM EDT, 17 minutes before
Preliminary Local Storm Report
National Weather Service Cleveland OH
801 PM EDT Wed Jun 18 2025

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0750 PM     Tstm Wnd Gst     1 ESE Clay Center       41.56N 83.34W
06/18/2025  M59 MPH          Ottawa             OH   Trained Spotter

            Measured 59 mph gust in Martin relayed by
            HAM radio.

&&

Garuckas
Local storm report, Jun 18, 8:14 PM EDT, 4 minutes before
Preliminary Local Storm Report
National Weather Service Cleveland OH
814 PM EDT Wed Jun 18 2025

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0806 PM     Tstm Wnd Dmg     1 S Galion              40.71N 82.79W
06/18/2025                   Crawford           OH   Trained Spotter

            Large tree limbs snapped.

&&

NG

The office that day

Everything else NWS Cleveland, OH issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 18, 8:25 PM EDTSevere Thunderstorm WarningCLEAshland, Holmes, Knox, Wayne65 min
Jun 18, 8:25 PM EDTTornado WarningCLEErie, Huron, Lorain35 min
Jun 18, 8:54 PM EDTSevere Thunderstorm Warning Considerable damage threatCLEPortage, Stark, Summit, Wayne81 min
Jun 18, 8:58 PM EDTSevere Thunderstorm Warning Destructive damage threatCLECuyahoga, Lorain47 min
Jun 18, 9:19 PM EDTSevere Thunderstorm Warning Considerable damage threatCLEGeauga, Lake41 min
Jun 18, 9:22 PM EDTTornado WarningCLEGeauga, Portage, Summit23 min
Jun 18, 9:35 PM EDTFlash Flood WarningCLECuyahoga, Summit108 min
Jun 18, 9:40 PM EDTSpecial Marine WarningCLE2 hr
Jun 18, 9:44 PM EDTSevere Thunderstorm Warning Considerable damage threatCLEAshtabula61 min
Jun 18, 9:47 PM EDTSevere Thunderstorm WarningCLEGeauga, Lake, Mahoning, Trumbull73 min
Jun 18, 10:36 PM EDTSevere Thunderstorm WarningCLETrumbull69 min
Jun 19, 12:46 AM EDTRiver Flood WarningCLETrumbull46 hr
Jun 19, 3:59 AM EDTBeach Hazards StatementCLEAshtabula, Cuyahoga, Erie, Lake, Lorain18 hr
Jun 19, 4:12 AM EDTRiver Flood WarningCLECuyahoga, Summit3 hr
Jun 19, 12:30 PM EDTSpecial Weather StatementCLEAshtabula, Geauga, Lake45 min
Jun 19, 1:34 PM EDTAreal Flood AdvisoryCLECuyahoga, Geauga, Portage, Summit116 min
Jun 19, 2:22 PM EDTSpecial Weather StatementCLEMahoning, Portage, Stark, Trumbull53 min
Jun 19, 3:26 PM EDTRiver Flood WarningCLECuyahoga7 hr

Nearby

Severe Thunderstorm Warnings in Ohio, 2025Every severe thunderstorm warning in 2025

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.