Damaging Winds in Indiana, July 1, 2023

Name: Damaging Winds in Indiana, July 1, 2023
Start: 2023-07-01T17:43
End: 2023-07-01T17:59
Location: Indiana

July 1, 2023 · NWS PAH · 2 events in 2 counties and zones

Where it happened

Every event with a place to put it. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: None recorded
Crop damage: None recorded
Events: 2

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS PAH wrote it up.

A bowing line of severe thunderstorms moved rapidly east-northeast out of southeast Illinois across extreme southwest Indiana. This line produced wind gusts up to 70 mph from the Wabash River east to the Evansville metro area. The storms developed in response to a rather amplified 500 mb shortwave trough that progressed east into Iowa and Missouri by nightfall. With daytime heating, the atmosphere became very unstable in the afternoon. Mixed-layer capes were around 3000 j/kg late in the day. A belt of 35 to 45 knot mid-level west-southwesterly winds resulted in sufficient deep-layer wind shear for organized storm structures.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Paducah, KY wrote its last area forecast discussion before the first event at Jul 1, 5:14 PM CST, 29 minutes earlier.

Area forecast discussion, Jul 1, 5:14 PM CST, 29 minutes before

Area Forecast Discussion
National Weather Service Paducah KY
614 PM CDT Sat Jul 1 2023

.UPDATE...
Issued at 603 PM CDT Sat Jul 1 2023

Updated Aviation discussion for 00Z TAF Issuance.

&&

.SHORT TERM...(Tonight through Monday night)
Issued at 129 PM CDT Sat Jul 1 2023

-Strong to severe storms are expected to increase in coverage this
 afternoon and evening

-Storms may upscale into a line with locally enhanced damaging
 wind potential through this evening

A large MCS has formed just south of the CWA in TN from convection
that ran along the KY/TN border. This appears to be associated
with a weak mid/upper level impulse as convection behind it isn't
doing as well. The local convection and things just to the south
of the CWA have not stayed organized and are in an area of
relatively weaker deep layer flow.

Additional convection is developing over southwest and is in
better shear closer to the shortwave trough. Cloud cover from
ongoing convection has limited our heating a bit in a few areas
but LAPS and SPC mesoanalysis still show 3000-4000 J/kg of MLCAPE
over SEMO/SRN IL and WKY with growing CAPE in SWIN behind this
mornings convection. A pretty clear gradient still exists from
about Mt. Vernon to Bowling Green, KY behind previous convection.

As the large scale ascent increases ahead of the approaching
shortwave over the next few hours expect that convection will
increase. Given the unstable environment and 30-40 kts of deep
layer shear severe storms seem pretty likely. Straight hodographs
support initially splitting cells but an upscale into a line-
segment/QLCS system appears likely. Low level shear isn't
especially favorable for mesovorticies and tornadoes but will need
to watch for any boundary interactions from previous convection
that could enhance local tornado potential.

Coverage of storms today will likely determine how this evening
plays out, as we don't get a synoptic scale clearing front
overnight. The humid and unstable airmass lags behind through
early Sunday and the GFS timing generates another round of
afternoon storms over the eastern half of the area. If we get a
more sweeping MCS I think coverage would be a bit more limited
tomorrow.

After that we get a more pronounced front late Sunday which should
lead to drier and slightly less humid conditions Monday.

.LONG TERM...(Tuesday through Saturday)
Issued at 129 PM CDT Sat Jul 1 2023

We return to southerly return flow Tuesday and afternoon shower
and storm chances return both Tuesday and Wednesday. Shear will be
modest but some pulse afternoon convection appears likely. The
ECMWF is a little less aggressive with the QPF and has more
marginal thermodynamics.

Wednesday into Thursday both ECMWF/GFS bring a trough and
associated front to the area. Looks like another 12-24 hours of
pretty unsettled weather, although as frontal timing agreement
improves we may be able to narrow that down a little bit. Severe
weather appears possible given the instability and shear
parameters apparent on the synoptic scale.

&&

.AVIATION...
Issued at 603 PM CDT Sat Jul 1 2023

MVFR to at times IFR restrictions are possible with
VSBYS/potentially with CIGS as scattered strong convection
impacts the terminals this evening. Activity will wane and
conditions may improve to VFR from late tonight into the first
half of the day tmrw, but expect another flare-up of strong afternoon
convection to similarly deteriorate CIGS/VSBYS during the
planning phase of the forecast.

&&

.PAH WATCHES/WARNINGS/ADVISORIES...
IL...Heat Advisory until 7 PM CDT this evening for ILZ084-088-092>094.

MO...Heat Advisory until 7 PM CDT this evening for MOZ076-086-087-100-
     109>112-114.

IN...Flood Watch until 3 AM CDT /4 AM EDT/ Sunday for INZ081-082-
     086>088.

KY...Heat Advisory until 7 PM CDT this evening for KYZ001>006.

     Flood Watch until 3 AM CDT Sunday for KYZ018-019.

&&

Hazardous weather outlook, Jul 1, 3:15 PM CST, 2 hours 28 minutes before

Hazardous Weather Outlook
National Weather Service Paducah KY
415 PM CDT Sat Jul 1 2023

ILZ075>078-080>094-INZ081-082-085>088-KYZ001>022-MOZ076-086-087-
100-107>112-114-021000-
Jefferson-Wayne IL-Edwards-Wabash-Perry IL-Franklin-Hamilton-
White-Jackson-Williamson-Saline-Gallatin-Union-Johnson-Pope-
Hardin-Alexander-Pulaski-Massac-Gibson-Pike-Posey-Vanderburgh-
Warrick-Spencer-Fulton-Hickman-Carlisle-Ballard-McCracken-Graves-
Livingston-Marshall-Calloway-Crittenden-Lyon-Trigg-Caldwell-
Union KY-Webster-Hopkins-Christian-Henderson-Daviess-McLean-
Muhlenberg-Todd-Perry MO-Bollinger-Cape Girardeau-Wayne MO-Carter-
Ripley-Butler-Stoddard-Scott-Mississippi-New Madrid-
415 PM CDT Sat Jul 1 2023 /515 PM EDT Sat Jul 1 2023/

This Hazardous Weather Outlook is for portions of southern
Illinois, southwest Indiana, western Kentucky, and southeast
Missouri.

.DAY ONE...Tonight

A Severe Thunderstorm Watch remains in effect until 9 PM CDT.
Refer to the Watch for severe storm hazards and details.

Heat indices up to 109 degrees are possible until the Heat
Advisory expires at 7 PM CDT. Refer to the advisory for further
details.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

Another round of thunderstorms is likely Sunday, especially in
the afternoon. Isolated severe storms with damaging winds and
large hail are possible.

There is a daily chance of thunderstorms Monday through Friday.
The activity is expected to be isolated Monday through Wednesday
before becoming more numerous Thursday, and then isolated again
Friday. Heavy rain and lightning will be the primary hazards, but
periods of stronger storms cannot be ruled out.

.SPOTTER INFORMATION STATEMENT...

Spotter reports for ongoing severe weather are appreciated.

In the hours before

Special weather statement, Jul 1, 5:17 PM CST, 26 minutes before

Special Weather Statement
National Weather Service Paducah KY
617 PM CDT Sat Jul 1 2023

MOZ114-012345-
New Madrid MO-
617 PM CDT Sat Jul 1 2023

...A strong thunderstorm will impact portions of southwestern New
Madrid County through 645 PM CDT...

At 617 PM CDT, Doppler radar was tracking a strong thunderstorm over
Clarkton, or near Campbell, moving east at 35 mph.

HAZARD...Wind gusts up to 50 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

This strong thunderstorm will be near...
  Gideon around 620 PM CDT.
  Parma and Risco around 635 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 900 PM CDT for
southeastern Missouri.

&&

LAT...LON 3639 8997 3648 8996 3653 8996 3655 8995
      3658 8996 3663 8985 3663 8970 3642 8970
      3643 8974 3642 8974 3639 8975
TIME...MOT...LOC 2317Z 251DEG 32KT 3646 8996

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH

ATL

Local storm report, Jul 1, 5:21 PM CST, 22 minutes before

Preliminary Local Storm Report
National Weather Service Paducah KY
621 PM CDT Sat Jul 1 2023

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

0619 PM     Tstm Wnd Dmg     Mount Carmel            38.42N 87.77W
07/01/2023                   Wabash             IL   Trained Spotter

            Two trees fell, spotter estimated 70 mph
            winds.

&&

JGG

Special weather statement, Jul 1, 5:22 PM CST, 21 minutes before

Special Weather Statement
National Weather Service Paducah KY
622 PM CDT Sat Jul 1 2023

INZ085-KYZ010-014-018-012345-
Posey IN-Henderson KY-Crittenden KY-Union KY-
622 PM CDT Sat Jul 1 2023

...A strong thunderstorm will impact portions of south central Posey,
southwestern Henderson, northeastern Crittenden and Union Counties
through 645 PM CDT...

At 622 PM CDT, Doppler radar was tracking a strong thunderstorm near
Uniontown, or 7 miles west of Morganfield, moving east at 45 mph.

HAZARD...Wind gusts up to 50 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

This strong thunderstorm will be near...
  Morganfield, Breckinridge Center and Uniontown around 630 PM CDT.

Other locations in the path of this storm include Corydon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 900 PM CDT for
southern Illinois...southwestern Indiana...and western and
northwestern Kentucky.

&&

LAT...LON 3764 8772 3764 8773 3748 8794 3751 8806
      3778 8804 3781 8803 3783 8796 3782 8768
TIME...MOT...LOC 2322Z 250DEG 40KT 3771 8804

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH

ATL

Special weather statement, Jul 1, 5:26 PM CST, 17 minutes before

Special Weather Statement
National Weather Service Paducah KY
626 PM CDT Sat Jul 1 2023

KYZ003>006-020000-
Carlisle KY-McCracken KY-Ballard KY-Graves KY-
626 PM CDT Sat Jul 1 2023

...A strong thunderstorm will impact portions of northeastern
Carlisle, southeastern Ballard, McCracken and northern Graves
Counties through 700 PM CDT...

At 625 PM CDT, Doppler radar was tracking a strong thunderstorm near
Lovelaceville, or 8 miles east of Bardwell, moving northeast at 50
mph.

HAZARD...Wind gusts up to 50 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

This strong thunderstorm will be near...
  Lovelaceville around 630 PM CDT.
  Paducah around 640 PM CDT.
  Lone Oak around 645 PM CDT.

Other locations in the path of this storm include Reidland.

This includes Interstate 24 in Kentucky between Mile Markers 1 and
17.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 900 PM CDT for
western Kentucky.

&&

LAT...LON 3693 8901 3714 8871 3711 8861 3708 8857
      3707 8857 3703 8852 3702 8848 3684 8848
      3684 8849 3680 8881
TIME...MOT...LOC 2325Z 241DEG 44KT 3689 8886

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH

ATL

Special weather statement, Jul 1, 5:29 PM CST, 14 minutes before

Special Weather Statement
National Weather Service Paducah KY
629 PM CDT Sat Jul 1 2023

KYZ002-003-006-012345-
Carlisle KY-Graves KY-Hickman KY-
629 PM CDT Sat Jul 1 2023

...A strong thunderstorm will impact portions of southeastern
Carlisle, northeastern Hickman and west central Graves Counties
through 645 PM CDT...

At 628 PM CDT, Doppler radar was tracking a strong thunderstorm near
Clinton, moving northeast at 50 mph.

HAZARD...Wind gusts up to 50 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

This storm will remain over mainly rural areas of southeastern
Carlisle, northeastern Hickman and west central Graves Counties.

This includes Interstate 69 in Kentucky between Mile Markers 17 and
19.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 900 PM CDT for
western Kentucky.

&&

LAT...LON 3663 8890 3670 8901 3682 8884 3670 8867
TIME...MOT...LOC 2328Z 241DEG 44KT 3671 8894

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH

ATL

Local storm report, Jul 1, 5:30 PM CST, 13 minutes before

Preliminary Local Storm Report
National Weather Service Paducah KY
630 PM CDT Sat Jul 1 2023

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

0618 PM     Tstm Wnd Dmg     2 N Clinton             36.69N 89.00W
07/01/2023                   Hickman            KY   Emergency Mngr

            Tree down along highway 51.

&&

JGG

The radar

The Evansville,IN radar (KVWX), 11 km away, was scanning. The volume nearest the first event began at 23:43 UTC.

Open the radar archive at this moment

Event by event

2 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Posey

When: July 1, 5:43 PM CST
Where: Posey County, Poseyville
Measured: 61 kt (70 mph) estimated gust
Reported by: Trained Spotter
Coordinates: 38.170, -87.780

A trained spotter estimated a wind gust to 70 mph.

Thunderstorm Wind, Vanderburgh

When: July 1, 5:59 PM CST
Where: Vanderburgh County, (Evv)dress Arpt Evan
Measured: 51 kt (59 mph) measured gust
Reported by: ASOS
Coordinates: 38.030, -87.530

A wind gust to 59 mph was measured at the Evansville airport automated observing system.

What these are

Thunderstorm Wind: Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in Indiana in 2023 Every state in 2023 This day in weather history Warnings in Indiana, July 2023

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1100150, 1100151.