Alert archive / Illinois / Tornado Warnings in 2026
Tornado Warning 51, NWS St. Louis, MO
NWS St. Louis, MO issued this tornado warning at Apr 27, 2026, 7:52 PM CDT for Clinton County, Saint Clair County, Illinois. It was in force for 38 min. 3 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
- Apr 27, 2026, 7:52 PM CDT (00:52 UTC)
- Expired
- Apr 27, 2026, 8:30 PM CDT
- In force
- 38 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.0 in
Counties Clinton County, IL, Saint Clair County, IL
The radar
The St Louis radar (KLSX), 91 km from the middle of the area, began a volume at 00:55 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 27, 7:53 PM CDT | TORNADO | 3 Ene Scott Afb, IL | NWS Damage Survey found that an EF1 tornado formed along IL Highway 4 north of Interstate 64, moving northeastward, dissipating southeast of Trenton. |
| Apr 27, 8:06 PM CDT | TORNADO | 2 Wsw Germantown, IL | NWS Damage Survey found that an EF1 tornado formed southwest of Germantown and tracked northeastward to just south of Carlyle. |
| Apr 27, 8:08 PM CDT | TORNADO | Germantown, IL | Large trees down, street signs blown down. |
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 3 storm reports to this tornado warning; the first came 1 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 27, 12:50 PM CDT | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 0.9 hours before the alert went out and 193 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1082 m above ground
- 0-6 km bulk shear
- 76 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- -57 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
423
WFUS53 KLSX 280052
TORLSX
ILC027-163-280130-
/O.NEW.KLSX.TO.W.0051.260428T0052Z-260428T0130Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
752 PM CDT Mon Apr 27 2026
The National Weather Service in St Louis has issued a
* Tornado Warning for...
Northwestern Clinton County in south central Illinois...
Northeastern Saint Clair County in southwestern Illinois...
* Until 830 PM CDT.
* At 752 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Scott AFB, moving east at 35 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows and vehicles will occur. Tree damage is
likely.
* This tornado will be near...
Mascoutah, Scott AFB and Lebanon around 755 PM CDT.
New Baden and Trenton around 805 PM CDT.
Albers around 810 PM CDT.
Other locations impacted by the tornado include Summerfield,
Damiansville and Bartelso.
This includes Interstate 64 in Illinois between exits 23 and 27.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to an interior room on the lowest floor of a well-built building
away from windows. If you are outdoors, in a mobile home, or in a
vehicle, move to the closest substantial shelter and protect yourself
from flying debris.
&&
LAT...LON 3850 8982 3861 8984 3866 8967 3866 8960
3868 8960 3873 8940 3852 8937
TIME...MOT...LOC 0052Z 263DEG 29KT 3854 8983
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
$$
Elmore5 follow-up statements
996
WWUS53 KLSX 280100
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
800 PM CDT Mon Apr 27 2026
ILC027-163-280130-
/O.CON.KLSX.TO.W.0051.000000T0000Z-260428T0130Z/
Clinton IL-Saint Clair IL-
800 PM CDT Mon Apr 27 2026
...TORNADO WARNING REMAINS IN EFFECT UNTIL 830 PM CDT FOR
NORTHWESTERN CLINTON AND NORTHEASTERN SAINT CLAIR COUNTIES...
At 800 PM CDT, a tornado producing storm was located over Trenton, or
near New Baden, moving east at 40 mph.
HAZARD...Damaging tornado and quarter size hail.
SOURCE...Radar confirmed tornado.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows and vehicles will occur. Tree damage is
likely.
This tornado will be near...
Aviston, Trenton, Albers and New Baden around 805 PM CDT.
Breese, Germantown and St. Rose around 810 PM CDT.
Beckemeyer around 820 PM CDT.
Other locations impacted by the tornado include Summerfield, Bartelso
and Stolletown.
This includes Interstate 64 in Illinois near exit 27.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to an interior room on the lowest floor of a well-built building
away from windows. If you are outdoors, in a mobile home, or in a
vehicle, move to the closest substantial shelter and protect yourself
from flying debris.
Heavy rainfall is hiding this tornado. Do not wait to see or hear the
tornado. Take cover now!
&&
LAT...LON 3851 8974 3863 8978 3866 8969 3866 8960
3868 8960 3873 8940 3852 8937
TIME...MOT...LOC 0052Z 257DEG 36KT 3857 8977
TORNADO...OBSERVED
MAX HAIL SIZE...1.00 IN
$$
Elmore766
WWUS53 KLSX 280103
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
803 PM CDT Mon Apr 27 2026
ILC163-280113-
/O.CAN.KLSX.TO.W.0051.000000T0000Z-260428T0130Z/
Saint Clair IL-
803 PM CDT Mon Apr 27 2026
...TORNADO WARNING IS CANCELLED FOR NORTHEASTERN SAINT CLAIR
COUNTY...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled. However, small hail, gusty
winds, and heavy rain are still possible with this thunderstorm.
A Tornado Watch remains in effect until 900 PM CDT for a portion of
southwest Illinois.
&&
LAT...LON 3865 8971 3866 8965 3866 8960 3868 8960
3873 8940 3852 8937 3851 8971
TIME...MOT...LOC 0100Z 257DEG 36KT 3859 8967
$$
ILC027-280130-
/O.CON.KLSX.TO.W.0051.000000T0000Z-260428T0130Z/
Clinton IL-
803 PM CDT Mon Apr 27 2026
...TORNADO WARNING REMAINS IN EFFECT UNTIL 830 PM CDT FOR
NORTHWESTERN CLINTON COUNTY...
At 803 PM CDT, a tornado producing storm was located over Trenton, or
5 miles northeast of New Baden, moving east at 40 mph.
HAZARD...Damaging tornado and quarter size hail.
SOURCE...Radar confirmed tornado.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows and vehicles will occur. Tree damage is
likely.
This tornado will be near...
Aviston, Trenton, Albers and New Baden around 805 PM CDT.
Germantown around 810 PM CDT.
Breese and St. Rose around 815 PM CDT.
Other locations impacted by the tornado include Bartelso and
Stolletown.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to an interior room on the lowest floor of a well-built building
away from windows. If you are outdoors, in a mobile home, or in a
vehicle, move to the closest substantial shelter and protect yourself
from flying debris.
Heavy rainfall is hiding this tornado. Do not wait to see or hear the
tornado. Take cover now!
&&
LAT...LON 3865 8971 3866 8965 3866 8960 3868 8960
3873 8940 3852 8937 3851 8971
TIME...MOT...LOC 0100Z 256DEG 34KT 3859 8969
TORNADO...OBSERVED
MAX HAIL SIZE...1.00 IN
$$
Elmore480
WWUS53 KLSX 280110
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
810 PM CDT Mon Apr 27 2026
ILC027-280130-
/O.CON.KLSX.TO.W.0051.000000T0000Z-260428T0130Z/
Clinton IL-
810 PM CDT Mon Apr 27 2026
...TORNADO WARNING REMAINS IN EFFECT UNTIL 830 PM CDT FOR CENTRAL
CLINTON COUNTY...
At 810 PM CDT, a tornado producing storm was located over Germantown,
or near Breese, moving east at 50 mph.
HAZARD...Damaging tornado and quarter size hail.
SOURCE...Radar confirmed tornado.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows and vehicles will occur. Tree damage is
likely.
This tornado will be near...
Beckemeyer, Breese and Germantown around 815 PM CDT.
Carlyle around 820 PM CDT.
Other locations impacted by the tornado include Bartelso and
Stolletown.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to an interior room on the lowest floor of a well-built building
away from windows. If you are outdoors, in a mobile home, or in a
vehicle, move to the closest substantial shelter and protect yourself
from flying debris.
Heavy rainfall is hiding this tornado. Do not wait to see or hear the
tornado. Take cover now!
&&
LAT...LON 3851 8961 3866 8960 3868 8960 3873 8940
3852 8937
TIME...MOT...LOC 0103Z 250DEG 43KT 3853 8960
TORNADO...OBSERVED
MAX HAIL SIZE...1.00 IN
$$
Elmore882
WWUS53 KLSX 280118
SVSLSX
Severe Weather Statement
National Weather Service St Louis MO
818 PM CDT Mon Apr 27 2026
ILC027-280130-
/O.CON.KLSX.TO.W.0051.000000T0000Z-260428T0130Z/
Clinton IL-
818 PM CDT Mon Apr 27 2026
...TORNADO WARNING REMAINS IN EFFECT UNTIL 830 PM CDT FOR CENTRAL
CLINTON COUNTY...
At 818 PM CDT, a tornado producing storm was located over Carlyle,
moving east at 50 mph.
HAZARD...Damaging tornado and quarter size hail.
SOURCE...Radar confirmed tornado.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows and vehicles will occur. Tree damage is
likely.
This tornado will be near...
Carlyle and Beckemeyer around 820 PM CDT.
Other locations impacted by the tornado include Bartelso.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Move to an interior room on the lowest floor of a well-built building
away from windows. If you are outdoors, in a mobile home, or in a
vehicle, move to the closest substantial shelter and protect yourself
from flying debris.
Heavy rainfall is hiding this tornado. Do not wait to see or hear the
tornado. Take cover now!
&&
LAT...LON 3852 8948 3871 8950 3873 8940 3852 8937
TIME...MOT...LOC 0110Z 250DEG 43KT 3856 8951
TORNADO...OBSERVED
MAX HAIL SIZE...1.00 IN
$$
Elmore945 WWUS53 KLSX 280126 RRB SVSLSX Severe Weather Statement National Weather Service St Louis MO 826 PM CDT Mon Apr 27 2026 ILC027-280136- /O.EXP.KLSX.TO.W.0051.000000T0000Z-260428T0130Z/ Clinton IL- 826 PM CDT Mon Apr 27 2026 ...TORNADO WARNING WILL EXPIRE AT 830 PM CDT FOR CENTRAL CLINTON COUNTY... The storm which prompted the warning has moved out of the area. Therefore, the warning will be allowed to expire. However, small hail, gusty winds, and heavy rain are still possible with this thunderstorm. A Tornado Warning still remains in effect for eastern Clinton County. A Tornado Watch remains in effect until 900 PM CDT for a portion of south central Illinois. && LAT...LON 3852 8948 3871 8950 3873 8940 3852 8937 TIME...MOT...LOC 0118Z 250DEG 43KT 3859 8938 $$ Elmore
What forecasters said that day
The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS St. Louis, MO wrote its last area forecast discussion before this tornado warning went out at Apr 27, 6:54 PM CDT, 58 minutes earlier. Its key messages:
- While periods of storms are expected through Monday morning, the most potent thunderstorms will occur through early evening.
- Thunderstorms this evening will be capable of damaging wind gusts, large hail, and strong tornadoes.
- A period of cool, calm weather is expected mid-week through the weekend.
Area forecast discussion, Apr 27, 6:54 PM CDT, 58 minutes before
Area Forecast Discussion...Updated Aviation
National Weather Service Saint Louis MO
654 PM CDT Mon Apr 27 2026
.KEY MESSAGES...
- While periods of storms are expected through Monday morning, the
most potent thunderstorms will occur through early evening.
- Thunderstorms this evening will be capable of damaging wind
gusts, large hail, and strong tornadoes.
- A period of cool, calm weather is expected mid-week through the
weekend.
&&
.SHORT TERM...THROUGH TUESDAY NIGHT/...
Issued at 456 PM CDT Mon Apr 27 2026
(Through Tuesday Night)
Issued at 155 AM CDT Mon Apr 27 2026
Storms across southeastern Missouri continue to butt up against an
instability gradient draped from north to south across Missouri.
The warm air advection feeding these storms will also push greater
instability slowly northeastward through this morning, though
propagation vectors will favor convection continuing to move east-
southeastward generally away from the CWA or into an unfavorable
environment. Additionally, the low-level jet refocusing across
Kansas will continue to support the downward trend in convection
across southeastern Missouri early this morning. Any linger storms
over the next couple of hours will be capable mainly of large hail,
though there is also a very low damaging wind and tornado threat for
storms that remain surface based.
Our attention turns to the storms over eastern Kansas that are
propagating eastward with the nose of the low-level jet. With the
nose of this low-level jet edging into northeastern Missouri later
this morning, the focus for these storms will spread into portions
of the CWA north of I-70. Vertical thermal profiles suggest that this
convection will be elevated, mitigating a threat of damaging wind
gusts and/or tornadoes. However, with around 40 kts of effective
shear and building MUCAPE, there is a low chance for isolated
instances of large hail.
How long this convection lingers is uncertain, although guidance
trends have been toward a lull in convective activity in the wake of
this convection and that associated with a cold front during the
late afternoon and evening. Ahead of the front, the warm sector
remains capped through much of the afternoon per a majority of
deterministic soundings. Although, any remnant outflow or
differential heating boundary from early day convection may serve as
enough of a forcing mechanism to spawn discrete convection during
the afternoon as lift from an approaching shortwave increases over
the region. If this convection does form, it will be in an
environment characterized by 2,000-2,500 J/kg of SBCAPE and roughly
50 kts of deep-layer shear. This will favor supercells capable of
all hazards, with long curved hodographs favoring strong tornadoes,
especially if storms are able to latch on to any remnant boundaries
across the CWA.
Where the environment isn't contaminated from earlier rounds of
convection, additional updrafts are expected along the cold front as
it enters the area 4-5pm. Forcing from the front paired with lift
from the shortwave will lead to numerous updrafts along the front.
While this will be occurring within a similar environment detailed
prior, the number of updrafts paired with them occurring along the
front may lead to destructive interactions and congealing into line
segments and/or clusters. While this will tend to limit a strong
tornado threat, storms will still be capable of all severe hazards.
Convection is expected to depart the CWA with the front by 9-10pm.
Even with the FROPA Monday evening, the threat for convection will
continue on Tuesday. Guidance consensus has the front stalling just
south of the CWA early Tuesday and then buckling northward as a
shortwave moves through the Central Plains and into the Midwest
through the day. This shortwave will send a subtle surface
reflection through the Mid South along the front, with a brief
period of warm air advection that will help force elevated
convection for areas mainly along and south of I-70. If the front
can move northward enough, shear profiles and instability amounts
favor supercells capable primarily of large hail across far
southeastern Missouri during the afternoon. Waning instability and
the front continuing southward will bring an end to rain chances
during the evening.
Elmore
&&
.LONG TERM...WEDNESDAY THROUGH MONDAY/...
Issued at 456 PM CDT Mon Apr 27 2026
(Tuesday Night through Sunday)
Issued at 155 AM CDT Mon Apr 27 2026
Both deterministic guidance and ensemble clusters keep upper-level
troughing slowly moving eastward over the eastern CONUS through the
long range forecast period. This will maintain northwesterly flow
over the Middle Mississippi Valley through Saturday as several
rounds of high pressure pass through the region. As a result,
temperatures will run at or below climatological normals into the
weekend and mostly dry weather is expected.
Elmore
&&
.AVIATION... (For the 00z TAFs through 00z Tuesday Evening)
Issued at 654 PM CDT Mon Apr 27 2026
Ongoing line of strong to severe thunderstorms moving through the
STL Metro area at the start of this TAF period. Storms along this
line will be capable of damaging winds, large hail and tornadoes.
The line will gradually move east-southeast and exit the forecast
area by 03-04Z. Remainder of the period will generally see calmer
conditions with VFR cloud cover. However, another round of showers
and isolated TSRA will spread into the forecast area from the
southwest after 18-20Z Tuesday. This will mostly impact COU/JEF
during this TAF period, but could spread MVFR ceilings into the
SUS/STL vicinity after 28/23Z.
SPECIFICS FOR KSTL: Broken line of +TSRA will bring a potential
for erratic, possibly damaging winds to STL through 01Z-02Z. Radar
trends show the strongest thunderstorm cores skirting around the
terminal, though additional development is possible within the
next hour. After TSRA exit to the east, VFR conditions dominate
until late in this TAF period (after 29/02Z) when MVFR conditions
could move in from the southwest.
WFO LSX
&&
.LSX WATCHES/WARNINGS/ADVISORIES...
MO...Flood Watch until 9 PM CDT this evening for Audrain MO-Boone MO-
Callaway MO-Cole MO-Franklin MO-Gasconade MO-Jefferson MO-
Lincoln MO-Moniteau MO-Montgomery MO-Osage MO-Pike MO-Saint
Charles MO-Saint Louis City MO-Saint Louis MO-Warren MO.
IL...Flood Watch until 9 PM CDT this evening for Bond IL-Calhoun IL-
Clinton IL-Fayette IL-Greene IL-Jersey IL-Macoupin IL-
Madison IL-Marion IL-Monroe IL-Montgomery IL-Saint Clair IL-
Washington IL.
&&
WFO LSXHazardous weather outlook, Apr 27, 2:02 AM CDT, 17 hours 50 minutes before
Hazardous Weather Outlook National Weather Service St Louis MO 202 AM CDT Mon Apr 27 2026 ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027- 034>036-041-042-047>052-059>065-072>075-084-085-099-280715- Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL- Marion IL-Washington IL-Randolph IL-Adams IL-Brown IL-Pike IL- Calhoun IL-Jersey IL-Madison IL-Saint Clair IL-Monroe IL-Knox MO- Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO-Boone MO- Audrain MO-Moniteau MO-Cole MO-Osage MO-Callaway MO-Montgomery MO- Lincoln MO-Gasconade MO-Warren MO-Saint Charles MO-Franklin MO- Saint Louis MO-Saint Louis City MO-Jefferson MO-Crawford MO- Washington MO-Saint Francois MO-Sainte Genevieve MO-Iron MO- Madison MO-Reynolds MO- 202 AM CDT Mon Apr 27 2026 This Hazardous Weather Outlook is for portions of eastern and central Missouri as well as west central and southwest Illinois. .DAY ONE...Today and tonight. Periods of thunderstorms are expected through the day into this evening. Thunderstorms this afternoon and evening will be capable of large hail, damaging wind gusts, and tornadoes. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. There is a chance of thunderstorms Tuesday. .SPOTTER INFORMATION STATEMENT... Spotters are encouraged to report wind damage, hail occurrence and size, and tornado occurrence to NWS St. Louis. Elmore
In the hours before
Local storm report, Apr 27, 7:30 PM CDT, 22 minutes before
Preliminary Local Storm Report
National Weather Service St Louis MO
730 PM CDT Mon Apr 27 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0720 PM Rain Catawissa 38.43N 90.78W
04/27/2026 M1.76 Inch Franklin MO Trained Spotter
Rainfall in the last hour.
&&
BrittLocal storm report, Apr 27, 7:33 PM CDT, 19 minutes before
Preliminary Local Storm Report
National Weather Service St Louis MO
733 PM CDT Mon Apr 27 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0710 PM Tstm Wnd Dmg Florissant 38.80N 90.32W
04/27/2026 St. Louis MO Public
4 buildings collapsed in Florissant.
&&Local storm report, Apr 27, 7:35 PM CDT, 17 minutes before
Preliminary Local Storm Report
National Weather Service St Louis MO
735 PM CDT Mon Apr 27 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0730 PM Tstm Wnd Gst Hamel 38.89N 89.84W
04/27/2026 E70 MPH Madison IL Public
&&Local storm report, Apr 27, 7:44 PM CDT, 8 minutes before
Preliminary Local Storm Report
National Weather Service St Louis MO
744 PM CDT Mon Apr 27 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0735 PM Tstm Wnd Dmg 2 SE Belleville 38.51N 89.98W
04/27/2026 St. Clair IL Emergency Mngr
*** 3 INJ ***
tree onto a house with potential injuries.
&&Local storm report, Apr 27, 7:47 PM CDT, 5 minutes before
Preliminary Local Storm Report
National Weather Service St Louis MO
747 PM CDT Mon Apr 27 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0558 PM Hail 1 N Jerseyville 39.14N 90.32W
04/27/2026 E1.00 Inch Jersey IL Public
Report from mPING: Quarter (1.00 in.).
0626 PM Hail 2 S Gerald 38.36N 91.32W
04/27/2026 M1.25 Inch Franklin MO Public
0644 PM Hail 1 SW Pacific 38.47N 90.76W
04/27/2026 E1.00 Inch Franklin MO Public
Report from mPING: Quarter (1.00 in.).
0648 PM Hail 2 E Gray Summit 38.49N 90.79W
04/27/2026 E1.25 Inch Franklin MO Public
Report from mPING: Half Dollar (1.25 in.).
0654 PM Hail 4 N Pacific 38.53N 90.75W
04/27/2026 E2.00 Inch Franklin MO Public
Report from mPING: Hen Egg (2.00 in.).
0655 PM Hail 2 NW Alton 38.93N 90.19W
04/27/2026 E1.50 Inch Madison IL Public
Report from mPING: Ping Pong Ball (1.50
in.).
0658 PM Hail 2 SW Clarkson Valley 38.60N 90.62W
04/27/2026 E1.00 Inch St. Louis MO Public
Report from mPING: Quarter (1.00 in.).
0659 PM Hail 1 NE Alton 38.91N 90.13W
04/27/2026 E1.00 Inch Madison IL Public
Report from mPING: Quarter (1.00 in.).
0700 PM Hail 2 N Wood River 38.89N 90.08W
04/27/2026 E1.25 Inch Madison IL Public
0707 PM Hail 1 NW Bethalto 38.91N 90.06W
04/27/2026 E1.75 Inch Madison IL Public
Report from mPING: Golf Ball (1.75 in.).
0708 PM Hail Bunker Hill 39.04N 89.95W
04/27/2026 E1.00 Inch Macoupin IL Public
Report from mPING: Quarter (1.00 in.).
0709 PM Hail 1 S Bunker Hill 39.02N 89.95W
04/27/2026 E1.00 Inch Macoupin IL Public
Report from mPING: Quarter (1.00 in.).
0711 PM Hail 3 W Carpenter 38.91N 89.95W
04/27/2026 E1.00 Inch Madison IL Public
Report from mPING: Quarter (1.00 in.).
0715 PM Hail 3 W Carpenter 38.91N 89.95W
04/27/2026 E1.25 Inch Madison IL Public
Report from mPING: Half Dollar (1.25 in.).
0718 PM Hail 2 S Benld 39.06N 89.81W
04/27/2026 E1.00 Inch Macoupin IL Public
Report from mPING: Quarter (1.00 in.).
0720 PM Hail Staunton 39.01N 89.78W
04/27/2026 E1.00 Inch Macoupin IL Public
Report from mPING: Quarter (1.00 in.).
0733 PM Hail 3 SE Columbia 38.43N 90.18W
04/27/2026 E1.00 Inch Monroe IL Public
Report from mPING: Quarter (1.00 in.).
&&Local storm report, Apr 27, 7:50 PM CDT, 2 minutes before
Preliminary Local Storm Report
National Weather Service St Louis MO
750 PM CDT Mon Apr 27 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0720 PM Tstm Wnd Dmg 1 E Richmond Heights 38.63N 90.31W
04/27/2026 St. Louis City MO Emergency Mngr
power line down on McCausland.
&&The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 27, 7:09 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Fayette, Macoupin, Madison, Montgomery | 51 min |
| Apr 27, 7:12 PM CDT | Severe Thunderstorm Warning | LSX | Madison, Monroe, Saint Clair | 63 min |
| Apr 27, 7:16 PM CDT | Flash Flood Warning | LSX | Montgomery | 5 hr |
| Apr 27, 7:22 PM CDT | Tornado Warning | LSX | Fayette, Montgomery | 38 min |
| Apr 27, 7:24 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 51 min |
| Apr 27, 7:50 PM CDT | Severe Thunderstorm Warning | LSX | Bond, Clinton, Fayette, Madison, Marion | 55 min |
| Apr 27, 7:54 PM CDT | Areal Flood Advisory | LSX | Madison | 4 hr |
| Apr 27, 7:56 PM CDT | Severe Thunderstorm Warning | LSX | Clinton, Monroe, Randolph, Saint Clair, Washington | 64 min |
| Apr 27, 7:59 PM CDT | Flash Flood Warning | LSX | Fayette | 6 hr |
| Apr 27, 8:15 PM CDT | Tornado Warning | LSX | Clinton, Fayette, Marion | 45 min |
| Apr 27, 8:22 PM CDT | Areal Flood Advisory | LSX | Bond | 6 hr |
| Apr 27, 8:30 PM CDT | Severe Thunderstorm Warning | LSX | Clinton, Fayette, Marion, Washington | 37 min |
| Apr 27, 8:44 PM CDT | Tornado Warning | LSX | Marion | 17 min |
| Apr 27, 8:55 PM CDT | Severe Thunderstorm Warning | LSX | Randolph | 30 min |
| Apr 27, 10:37 PM CDT | River Flood Warning | LSX | Adams | 37 hr |
| Apr 27, 10:37 PM CDT | River Flood Warning | LSX | Adams | 56 hr |
| Apr 27, 11:43 PM CDT | Areal Flood Warning | LSX | Macoupin | 4 hr |
| Apr 28, 12:16 AM CDT | Areal Flood Warning | LSX | Montgomery | 6 hr |
| Apr 28, 1:50 AM CDT | Areal Flood Warning | LSX | Fayette | 6 hr |
| Apr 28, 7:40 AM CDT | Areal Flood Warning | LSX | Fayette | 12 hr |
| Apr 28, 11:25 AM CDT | River Flood Warning | LSX | Brown | 25 hr |
| Apr 28, 11:25 AM CDT | River Flood Warning | LSX | Morgan, Pike | 4 days |
| Apr 28, 11:38 AM CDT | River Flood Warning | LSX | Madison | 6 days |
| Apr 28, 11:38 AM CDT | River Flood Warning | LSX | Monroe | 4 days |
| Apr 28, 11:38 AM CDT | River Flood Warning | LSX | Madison | 5 days |
| Apr 28, 11:38 AM CDT | River Flood Warning | LSX | Saint Clair | 5 days |
Nearby
Tornado Warnings in Illinois, 2026Every tornado warning in 2026Tornadoes in 2026
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.