Alert archive / Illinois / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 101, NWS St. Louis, MO

June 17, 20224 counties in Missouri; 5 counties in Illinois

NWS St. Louis, MO issued this severe thunderstorm warning at Jun 17, 2022, 4:40 AM CDT for 4 counties in Missouri; 5 counties in Illinois. It was in force for 65 min. 47 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 17, 2022, 4:40 AM CDT (09:40 UTC)
Expired
Jun 17, 2022, 5:45 AM CDT
In force
65 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Calhoun County, IL, Greene County, IL, Jersey County, IL, Macoupin County, IL, Madison County, IL, City of Saint Louis, MO, Lincoln County, MO, Saint Charles County, MO, Saint Louis County, MO

The radar

The St Louis radar (KLSX), 28 km from the middle of the area, began a volume at 09:42 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 17, 4:40 AM CDTTSTM WND DMG1 N O'Fallon, MOLARGE WOODEN FENCE BLOWN OVER IN OFALLON IL. REPORT VIA FACEBOOK.
Jun 17, 4:40 AM CDTTSTM WND DMG2 Nw Saint Peters, MOLARGE TREE LIMB DOWN VIA FACEBOOK.
Jun 17, 4:42 AM CDTTSTM WND DMG1 Ne Saint Peters, MOLARGE TREE DOWN IN ST. PETERS VIA TWITTER.
Jun 17, 4:42 AM CDTTSTM WND DMG1 Nne Saint Peters, MOVIA FACEBOOK WITH PICTURE INCLUDED: LARGE TREE FELL ONTO HOUSE.
Jun 17, 4:44 AM CDTTSTM WND DMG1 Ene Saint Peters, MOLARGE LIMB ON A POOL IN ST. PETERS. REPORT VIA FACEBOOK.
Jun 17, 4:44 AM CDTTSTM WND DMGGreenfield, ILLARGE TREE SNAPPED IN GREENFIELD. REPORT VIA FACEBOOK.
Jun 17, 4:44 AM CDTTSTM WND DMGWeldon Spring, MOLARGE TREE LIMB DOWN IN WELDON SPRING. REPORT VIA FACEBOOK.
Jun 17, 4:45 AM CDTTSTM WND DMGHarvester, MOTREE DOWN ON A HOUSE IN HARVESTER. REPORT VIA FACEBOOK.
Jun 17, 4:45 AM CDTTSTM WND DMGOtterville, ILLARGE TREE DOWN OVER ROADWAY. REPORT VIA FACEBOOK.
Jun 17, 4:45 AM CDTTSTM WND DMGWentzville, MOMEDIUM SIZED TREE DOWN IN WENTZVILLE VIA FACEBOOK.
Jun 17, 4:49 AM CDTTSTM WND DMGBunker Hill, ILVIA FACEBOOK WITH PICTURES: 4X4 CORNER POST DOWN, LIMBS DOWN, AND MAILBOXES BLOWN OFF THEIR POSTS.
Jun 17, 4:50 AM CDTTSTM WND DMG1 Nw Alton, ILDAMAGE TO HOUSE SOFFIT. REPORT VIA TWITTER.
Jun 17, 4:50 AM CDTTSTM WND DMG1 Nw Cottleville, MOA FEW LARGE TREE LIMBS DOWN AND ONE TREE UPROOTED IN GLEN ALLEN ESTATES SUBDIVISION.
Jun 17, 4:50 AM CDTTSTM WND DMG2 N O'Fallon, MOLARGE TREE LIMB DOWN VIA FACEBOOK.
Jun 17, 4:50 AM CDTTSTM WND DMGSaint Charles, MOLARGE TREE TOPPED IN ST. CHARLES VIA FACEBOOK.
Jun 17, 4:51 AM CDTTSTM WND DMG2 E Maryland Heights, MOLARGE BRANCH DOWN AND PATIO FURNITURE BLOWN ALL INTO THE YARD. REPORT VIA FACEBOOK.
Jun 17, 4:53 AM CDTTSTM WND GST 643 N Orchard Farms, MOAT KSET, ST. CHARLES SMARTT FIELD.
Jun 17, 4:55 AM CDTTSTM WND DMG1 Ese Ballwin, MOTREE SNAPPED. REPORT VIA FACEBOOK.
Jun 17, 4:55 AM CDTTSTM WND DMG1 Wnw Black Jack, MOTREES SNAPPED OFF AT GOLF CLUB OF FLORISSANT. ONE LARGE TREE DOWN, BLOCKING ESTATES DRIVE IN FLORISSANT IN BOTH DIRECTIONS.
Jun 17, 4:55 AM CDTTSTM WND DMG4 Ne Greenfield, ILVIA FACEBOOK: PART OF A TREE DOWN, NO POWER,.
Jun 17, 4:57 AM CDTTSTM WND DMGBerkeley, MOLARGE TREE LIMB DOWN ON CAR VIA FACEBOOK.
Jun 17, 4:57 AM CDTTSTM WND GST 601 N Woodson Terrace, MOAT KSTL, ST. LOUIS LAMBERT INTERNATIONAL AIRPORT.
Jun 17, 4:58 AM CDTTSTM WND DMG2 E Bethalto, ILLARGE TREES DOWN IN MEADOWBROOK. REPORT VIA FACEBOOK.
Jun 17, 5:00 AM CDTTSTM WND DMG1 Sse Saint John, MOMULTIPLE TREE BRANCHES DOWN, SOME UP TO 6 INCHES IN DIAMETER.
Jun 17, 5:00 AM CDTTSTM WND DMG3 W Girard, ILDELAYED REPORT, TIME ESTIMATED FROM RADAR. MULTIPLE MATURE TREES SNAPPED LOW ON THE TRUCK, ONE TREE UPROOTED, ONE POWER POLE KNOCKED OVER.
Jun 17, 5:00 AM CDTTSTM WND DMG4 Nnw Carlinville, ILTWO POWER POLES SNAPPED. REPORT VIA TWITTER.
Jun 17, 5:00 AM CDTTSTM WND DMGFerguson, MO1.5 TO 2 FOOT DIAMETER LIMB TAKEN OFF A LARGE OAK TREE AT A HEIGHT OF 20-30 FEET OFF THE GROUND. THE BRANCH DID NOT APPEAR TO BE ROTTED.
Jun 17, 5:00 AM CDTTSTM WND DMGGlendale, MOLARGE BRANCHES DOWN IN GLENDALE.
Jun 17, 5:00 AM CDTTSTM WND DMGShipman, ILLARGE BRANCH DOWN VIA FACEBOOK.
Jun 17, 5:01 AM CDTTSTM WND DMG1 E Kirkwood, MOLARGE BRANCHES DOWN IN KIRKWOOD. REPORT VIA FACEBOOK.
Jun 17, 5:01 AM CDTTSTM WND DMGPrairietown, ILLARGE TREE SNAPPED. REPORT VIA FACEBOOK.
Jun 17, 5:03 AM CDTTSTM WND DMG1 Ene Overland, MOTREE LIMB ESTIMATED TO BE ABOUT 8 INCHES IN DIAMETER FALLEN FROM TREE.
Jun 17, 5:05 AM CDTTSTM WND DMG1 Nnw Madison, ILLARGE TREE DOWN ON A CAR IN GRANITE CITY, IL. REPORT VIA FACEBOOK.
Jun 17, 5:05 AM CDTTSTM WND DMGBunker Hill, ILLARGE TREE SPLIT NEAR BASE VIA FACEBOOK. TIME ESTIMATED BASED ON RADAR.
Jun 17, 5:07 AM CDTTSTM WND DMGCarlinville, ILLARGE TREE FELL ON TO A HOUSE AND DAMAGED IT. REPORT VIA FACEBOOK.
Jun 17, 5:10 AM CDTTSTM WND DMG3 Nne Lemay, MOLARGE TREE DOWN IN SOUTH ST. LOUIS CITY NEAR GRAND AND EICHELBERGER. TIME ESTIMATED FROM RADAR.
Jun 17, 5:10 AM CDTTSTM WND DMG4 Sse Sunset Hills, MOLARGE LIMB DOWN. REPORT VIA FACEBOOK.
Jun 17, 5:10 AM CDTTSTM WND DMGWood River, ILSIDING DAMAGE TO BUSINESS ON EAST FERGUSON STREET.
Jun 17, 5:10 AM CDTTSTM WND GST 591 Sw Bethalto, ILAT KALN, ST. LOUIS REGIONAL AIRPORT.
Jun 17, 5:12 AM CDTTSTM WND DMG1 N Wood River, IL12 INCH TREE UPROOTED AND DAMAGED FENCE.
Jun 17, 5:12 AM CDTTSTM WND DMG1 W Wood River, ILVIA TWITTER WITH PICTURE: SIDING PEELING OFF SIDE OF BUILDING IN TOWN.
Jun 17, 5:12 AM CDTTSTM WND DMGLemay, MOLARGE TREE DOWN OVER ROADWAY IN LEMAY. REPORT VIA FACEBOOK.
Jun 17, 5:15 AM CDTTSTM WND DMGStaunton, ILLARGE TREES DOWN VIA FACEBOOK.
Jun 17, 5:19 AM CDTTSTM WND DMG2 Nne Edwardsville, ILTWO LARGE TREES DOWN IN RURAL EDWARDSVILLE. REPORT VIA FACEBOOK.
Jun 17, 5:20 AM CDTTSTM WND DMGOakville, MOLARGE TREE SNAPPED IN OAKVILLE. REPORT VIA FACEBOOK.
Jun 17, 5:30 AM CDTTSTM WND DMGAlhambra, ILGARAGE DOOR BLOWN IN. REPORT VIA FACEBOOK.
Jun 17, 5:30 AM CDTTSTM WND DMGGirard, ILLARGE TREE BRANCH DOWN VIA FACEBOOK.

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 47 storm reports to this severe thunderstorm warning; the first came 0 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 17, 1:42 AM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 9.7 hours before the alert went out and 217 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, Lincoln, IL at 00:00Z on 2022-06-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2224 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 00:00Z on 2022-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 48 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
2224 J/kg
Mixed-layer CIN
-25 J/kg
Mixed-layer LCL
1926 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
48 m²/s²
0-3 km storm-relative helicity
170 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.9

Open this sounding in Storm Lab

The text

As transmitted.

602 
WUUS53 KLSX 170940
SVRLSX
ILC013-061-083-117-119-MOC113-183-189-510-171045-
/O.NEW.KLSX.SV.W.0101.220617T0940Z-220617T1045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service St Louis MO
440 AM CDT Fri Jun 17 2022

The National Weather Service in St Louis has issued a

* Severe Thunderstorm Warning for...
  Southeastern Calhoun County in southwestern Illinois...
  Greene County in southwestern Illinois...
  Madison County in southwestern Illinois...
  Macoupin County in southwestern Illinois...
  Jersey County in southwestern Illinois...
  St. Louis City in east central Missouri...
  St. Charles County in east central Missouri...
  Southeastern Lincoln County in east central Missouri...
  St. Louis County in east central Missouri...

* Until 545 AM CDT.

* At 440 AM CDT, severe thunderstorms were located along a line
  extending from Roodhouse to near Carrollton to Hardin to near Chain
  of Rocks, moving east at 40 mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Severe thunderstorms will be near...
  Carrollton around 445 AM CDT.
  Greenfield around 450 AM CDT.
  Athensville around 455 AM CDT.
  St. Charles, Jerseyville and Old Kane around 500 AM CDT.

Other locations in the path of these severe thunderstorms include
Orchard Farms, Bridgeton, Grafton, Elsah, Florissant, Hazelwood,
Berkeley, Palmyra, Portage Des Sioux, Kemper, Ferguson, Carlinville,
Dellwood, Brighton, Calverton Park and West Alton.

This includes the following highways...
 Interstate 55 in Illinois between exits 23 and 44.
 Interstate 44 in Missouri between exits 261 and 277.
 Interstate 70 in Missouri between exits 208 and 231.

This also includes Babler Memorial State Park, Scott Joplin Historic
Site, Route 66 State Park, Castlewood State Park, Confluence State
Park, First Missouri State Capitol Historic Site, Pere Marquette
State Park, Beaver Dam State Park, and Horseshoe Lake State Park.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3865 8990 3866 9018 3862 9018 3839 9034
      3845 9034 3846 9041 3850 9041 3850 9059
      3847 9062 3847 9071 3864 9073 3854 9090
      3855 9096 3874 9096 3916 9074 3931 9042
      3952 9034 3951 8970 3900 8970 3900 8965
TIME...MOT...LOC 0940Z 276DEG 34KT 3951 9038 3936 9035 3915 9060 3892
9076

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Gosselin
5 follow-up statements
305 
WWUS53 KLSX 170951
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
451 AM CDT Fri Jun 17 2022

MOC113-171001-
/O.CAN.KLSX.SV.W.0101.000000T0000Z-220617T1045Z/
Lincoln MO-
451 AM CDT Fri Jun 17 2022

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN LINCOLN COUNTY 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 800 AM CDT for
south central and southwestern Illinois...and east central Missouri.

LAT...LON 3865 8990 3866 9018 3862 9018 3839 9034
      3845 9034 3846 9041 3850 9041 3850 9059
      3847 9062 3847 9071 3864 9073 3854 9090
      3855 9096 3876 9085 3900 9052 3936 9029
      3952 9021 3951 8970 3900 8970 3900 8965
TIME...MOT...LOC 0951Z 270DEG 34KT 3950 9026 3935 9023 3914 9048 3891
9064

$$

ILC013-061-083-117-119-MOC183-189-510-171045-
/O.CON.KLSX.SV.W.0101.000000T0000Z-220617T1045Z/
Calhoun IL-Greene IL-Madison IL-Macoupin IL-Jersey IL-
St. Louis City MO-St. Charles MO-St. Louis MO-
451 AM CDT Fri Jun 17 2022

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 AM CDT
FOR SOUTHEASTERN CALHOUN...EASTERN GREENE...MADISON...MACOUPIN AND
JERSEY COUNTIES IN SOUTHWESTERN ILLINOIS...ST. CHARLES AND ST. LOUIS
COUNTIES IN EAST CENTRAL MISSOURI AND ST. LOUIS CITY...

At 451 AM CDT, severe thunderstorms were located along a line
extending from near Manchester to Greenfield to 6 miles southwest of
Old Kane to 6 miles northeast of St. Paul, moving east at 40 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

These severe storms will be near...
  Greenfield and Athensville around 455 AM CDT.
  Old Kane around 500 AM CDT.

Other locations in the path of these severe thunderstorms include
Jerseyville, Grafton, Orchard Farms, Florissant, Hazelwood, Palmyra,
Elsah, Portage Des Sioux, Kemper, Carlinville, Brighton, West Alton,
Black Jack, Spanish Lake, Godfrey, Virden, Girard and Shipman.

This also includes Babler Memorial State Park, Scott Joplin Historic
Site, Route 66 State Park, Castlewood State Park, Confluence State
Park, First Missouri State Capitol Historic Site, Pere Marquette
State Park, Beaver Dam State Park, and Horseshoe Lake State Park.
 
This includes the following highways...
 Interstate 55 in Illinois between exits 23 and 44.
 Interstate 44 in Missouri between exits 261 and 277.
 Interstate 70 in Missouri between exits 214 and 231.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3865 8990 3866 9018 3862 9018 3839 9034
      3845 9034 3846 9041 3850 9041 3850 9059
      3847 9062 3847 9071 3864 9073 3854 9090
      3855 9096 3876 9085 3900 9052 3936 9029
      3952 9021 3951 8970 3900 8970 3900 8965
TIME...MOT...LOC 0951Z 270DEG 34KT 3950 9026 3935 9023 3914 9048 3891
9064

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Gosselin
333 
WWUS53 KLSX 170956
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
456 AM CDT Fri Jun 17 2022

ILC013-061-083-117-119-MOC183-189-510-171045-
/O.CON.KLSX.SV.W.0101.000000T0000Z-220617T1045Z/
Calhoun IL-Greene IL-Madison IL-Macoupin IL-Jersey IL-
St. Louis City MO-St. Charles MO-St. Louis MO-
456 AM CDT Fri Jun 17 2022

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 AM CDT
FOR SOUTHEASTERN CALHOUN...EASTERN GREENE...MADISON...MACOUPIN AND
JERSEY COUNTIES IN SOUTHWESTERN ILLINOIS...ST. CHARLES AND ST. LOUIS
COUNTIES IN EAST CENTRAL MISSOURI AND ST. LOUIS CITY...

At 455 AM CDT, severe thunderstorms were located along a line
extending from near Athensville to Greenfield to near Old Kane to 8
miles west of Orchard Farms, moving east at 40 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Trained weather spotters reported power outages across 
         several towns and a National Weather Service employee 
         estimated 60 mph gusts.

IMPACT...Expect damage to roofs, siding, and trees.

These severe storms will be near...
  Greenfield around 500 AM CDT.
  Grafton around 510 AM CDT.

Other locations in the path of these severe thunderstorms include
Florissant, Hazelwood, Berkeley, Palmyra, Elsah, Portage Des Sioux,
Kemper, Ferguson, Carlinville, Brighton, Calverton Park, West Alton,
Bellefontaine Neighbors, Black Jack, Spanish Lake, Castle Point, St.
Louis, Godfrey, Virden, Girard, Shipman, Glasgow Village, Alton, Wood
River, Madison, East Alton, Bunker Hill, Hartford, Bethalto, Pontoon
Beach, South Roxana, Roxana and Rosewood Heights.

This also includes Babler Memorial State Park, Scott Joplin Historic
Site, Route 66 State Park, Castlewood State Park, Confluence State
Park, First Missouri State Capitol Historic Site, Beaver Dam State
Park, and Horseshoe Lake State Park.
 
This includes the following highways...
 Interstate 55 in Illinois between exits 23 and 44.
 Interstate 44 in Missouri between exits 261 and 277.
 Interstate 70 in Missouri between exits 216 and 231.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3865 8990 3866 9018 3862 9018 3839 9034
      3845 9034 3846 9041 3850 9041 3850 9059
      3847 9062 3847 9071 3864 9073 3854 9090
      3855 9096 3875 9081 3900 9048 3935 9019
      3952 9016 3951 8970 3900 8970 3900 8965
TIME...MOT...LOC 0955Z 276DEG 34KT 3950 9021 3935 9018 3914 9043 3891
9059

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Gosselin
613 
WWUS53 KLSX 171014
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
514 AM CDT Fri Jun 17 2022

ILC013-061-083-171023-
/O.CAN.KLSX.SV.W.0101.000000T0000Z-220617T1045Z/
Calhoun IL-Greene IL-Jersey IL-
514 AM CDT Fri Jun 17 2022

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CALHOUN...EASTERN
GREENE AND JERSEY 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 800 AM CDT for
south central and southwestern Illinois...and east central Missouri.

LAT...LON 3865 8990 3866 9018 3862 9018 3839 9034
      3845 9034 3846 9041 3850 9041 3850 9059
      3847 9062 3847 9071 3864 9073 3854 9090
      3867 9068 3877 9051 3883 9026 3900 9001
      3952 8999 3951 8970 3900 8970 3900 8965
TIME...MOT...LOC 1013Z 270DEG 34KT 3948 9000 3933 8997 3912 9022 3889
9038

$$

ILC117-119-MOC183-189-510-171045-
/O.CON.KLSX.SV.W.0101.000000T0000Z-220617T1045Z/
Madison IL-Macoupin IL-St. Louis City MO-St. Charles MO-St. Louis MO-
514 AM CDT Fri Jun 17 2022

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 AM CDT
FOR MADISON AND MACOUPIN COUNTIES IN SOUTHWESTERN ILLINOIS...CENTRAL
ST. CHARLES AND ST. LOUIS COUNTIES IN EAST CENTRAL MISSOURI AND ST.
LOUIS CITY...

At 513 AM CDT, severe thunderstorms were located along a line
extending from near Palmyra to 6 miles northwest of Carlinville to
near Jerseyville to near Portage Des Sioux, moving east at 40 mph.

HAZARD...60 mph wind gusts.

SOURCE...The automated station at Lambert Field reported a wind 
         gust of 60 mph at 957 AM.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
  Carlinville, Palmyra, Virden, Girard, Alton, Wood River, East 
  Alton, Bunker Hill, Hartford, Bethalto, South Roxana, Roxana, 
  Rosewood Heights, Staunton, Gillespie, Wilsonville, Mount Clare, 
  East Gillespie, Dorsey, Edwardsville, Benld, Sawyerville, 
  Eagarville, Prairietown, Glen Carbon, Mount Olive, Carpenter and 
  Worden.

This also includes Babler Memorial State Park, Scott Joplin Historic
Site, Route 66 State Park, Castlewood State Park, Confluence State
Park, Beaver Dam State Park, and Horseshoe Lake State Park.
 
This includes the following highways...
 Interstate 55 in Illinois between exits 23 and 44.
 Interstate 44 in Missouri between exits 261 and 277.
 Interstate 70 in Missouri between exits 229 and 231.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3865 8990 3866 9018 3862 9018 3839 9034
      3845 9034 3846 9041 3850 9041 3850 9059
      3847 9062 3847 9071 3864 9073 3854 9090
      3867 9068 3877 9051 3883 9026 3900 9001
      3952 8999 3951 8970 3900 8970 3900 8965
TIME...MOT...LOC 1013Z 270DEG 34KT 3948 9000 3933 8997 3912 9022 3889
9038

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Gosselin
182 
WWUS53 KLSX 171027
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
527 AM CDT Fri Jun 17 2022

MOC183-171036-
/O.CAN.KLSX.SV.W.0101.000000T0000Z-220617T1045Z/
St. Charles MO-
527 AM CDT Fri Jun 17 2022

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL ST. CHARLES COUNTY 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 800 AM CDT for
south central and southwestern Illinois...and east central Missouri.

LAT...LON 3865 8990 3866 9018 3839 9034 3845 9034
      3846 9041 3850 9041 3850 9059 3847 9071
      3865 9071 3869 9045 3884 9023 3881 9012
      3882 9012 3886 9014 3887 9016 3901 8984
      3951 8981 3951 8970 3900 8970 3900 8965
TIME...MOT...LOC 1026Z 276DEG 34KT 3947 8985 3932 8982 3911 9007 3888
9023

$$

ILC117-119-MOC189-510-171045-
/O.CON.KLSX.SV.W.0101.000000T0000Z-220617T1045Z/
Madison IL-Macoupin IL-St. Louis City MO-St. Louis MO-
527 AM CDT Fri Jun 17 2022

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 AM CDT
FOR CENTRAL MADISON...EASTERN MACOUPIN COUNTIES IN SOUTHWESTERN
ILLINOIS AND ST. LOUIS COUNTIES IN EAST CENTRAL MISSOURI AND ST.
LOUIS CITY...

At 526 AM CDT, severe thunderstorms were located along a line
extending from near Girard to near Carlinville to Shipman to West
Alton, moving east at 40 mph.

HAZARD...60 mph wind gusts.

SOURCE...Trained weather spotters.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
St. Louis, Florissant, Chesterfield, Wildwood, University City,
Ballwin, Granite City, Alton, Kirkwood, Maryland Heights, Hazelwood,
Collinsville, Edwardsville, Webster Groves, Ferguson, Arnold,
Manchester, Creve Coeur, Overland and Clayton.

This also includes Babler Memorial State Park, Scott Joplin Historic
Site, Route 66 State Park, Castlewood State Park, Confluence State
Park, and Horseshoe Lake State Park.
 
This includes the following highways...
 Interstate 55 in Illinois between exits 23 and 44.
 Interstate 44 in Missouri between exits 261 and 277.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
St Louis.

&&

LAT...LON 3865 8990 3866 9018 3839 9034 3845 9034
      3846 9041 3850 9041 3850 9059 3847 9071
      3865 9071 3869 9045 3884 9023 3881 9012
      3882 9012 3886 9014 3887 9016 3901 8984
      3951 8981 3951 8970 3900 8970 3900 8965
TIME...MOT...LOC 1026Z 276DEG 34KT 3947 8985 3932 8982 3911 9007 3888
9023

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Gosselin
839 
WWUS53 KLSX 171037
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
537 AM CDT Fri Jun 17 2022

ILC117-119-MOC189-510-171047-
/O.EXP.KLSX.SV.W.0101.000000T0000Z-220617T1045Z/
Madison IL-Macoupin IL-St. Louis City MO-St. Louis MO-
537 AM CDT Fri Jun 17 2022

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL MADISON...EASTERN
MACOUPIN COUNTIES IN SOUTHWESTERN ILLINOIS AND ST. LOUIS COUNTIES IN
EAST CENTRAL MISSOURI AND ST. LOUIS CITY WILL EXPIRE AT 545 AM CDT...
    
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire.

A Severe Thunderstorm Watch remains in effect until 800 AM CDT for
south central and southwestern Illinois...and east central Missouri.

LAT...LON 3865 8990 3866 9018 3839 9034 3845 9034
      3846 9041 3850 9041 3850 9059 3847 9071
      3865 9071 3869 9045 3884 9023 3881 9012
      3882 9012 3886 9014 3887 9016 3901 8984
      3951 8981 3951 8970 3900 8970 3900 8965
TIME...MOT...LOC 1037Z 276DEG 34KT 3946 8973 3931 8970 3910 8995 3887
9011

$$

Gosselin

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 St. Louis, MO wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 17, 3:39 AM CDT, 1 hour 1 minute earlier.

Area forecast discussion, Jun 17, 3:39 AM CDT, 1 hour 1 minute before
Area Forecast Discussion
National Weather Service Saint Louis MO
339 AM CDT Fri Jun 17 2022

.SHORT TERM...  (Through Late Tonight)
Issued at 332 AM CDT Fri Jun 17 2022

An elongated MCS stretched from west-central IL across northern
MO into southeast NE. The bowing portion of the MCS across
northeast MO has a well-defined cold pool at this time. Forward
propagating Corfidi Vectors support the observed SE motion thus
far, and effective shear of 25 kts or so should be sufficient to
maintain the MCS as it tracks SEWD this morning through a
reservoir of very unstable air featuring MLCAPE of 3500+ J/KG.
The heart of the MCS is expected to track along and north of I-70
in MO and I-64 in IL. It appears the predominant threat with the
MCS will be damaging winds, although a localized threat of heavy
rain and flash flooding is possible as well in association with
training within the warm advection wing and possibly trailing NW-
SE convection. Given the current motion along with some of the
CAM, guidance the heart of the MCS should pass to the east of the
CWA by 13z or so.

Outflow with the MCS will bring some cooling along with lower dew
points this morning, and then the cold front will begin to push
southward this afternoon bringing slightly cooler air and lower
dew points as well. Cumulatively much of the area will see reduced
heat and humidity from yesterday and only parts of central MO
into southeast MO will still flirt with dangerous heat index
values. The heat advisory issued yesterday and valid until early
this evening captures this area well.

The cold front will slide through southern MO and southern IL this
evening in response to deepening of the upper trof from eastern
Canada through the northeast quarter of the Nation. At this time I
have kept the forecast dry this evening with very limited
convergence indicated with the front. Otherwise the aforementioned
deepening eastern trof will allow surface high pressure to build
into the area and bring cooler and drier/less humid air.

Glass

.LONG TERM...  (Saturday through Thursday)
Issued at 332 AM CDT Fri Jun 17 2022

A slowly progressive omega block will dominate the CONUS this
weekend with a prominent upper trof along the eastern seaboard,
and the upper ridge/upper high having retrograded initially by
Saturday to a position centered through the Plains into Canada.
The upper ridge axis and upper high will slowly progress eastward
into the Mississippi Valley on Sunday. The deep eastern trof
however will exert the greatest influence bringing the center of a
prominent building surface high/low level anticyclone into the
Great Lakes/Ohio Valley on Saturday, with the center of this high
shifting slowly east on Sunday. The high pressure system will
dominate weekend weather with easterly low level flow, and cooler
and less humid air on Saturday. A slight moderation of
temperatures is expected on Sunday however the lower dew
point/lower humidity air will persist as surface flow remains
easterly. Low temperatures on Sunday morning will actually be
below normal, and some 15-20 degrees cooler than mins experienced
much of this week.

The deterministic models and ensembles are in exceptionally good
agreement with the evolution of the large scale pattern next week
with the upper high intensifying Monday-Tuesday as it takes up
residence over the lower MS Valley. Large scale subsidence
attendant with the high, along with the return of low level south-
southwest flow will bring a return of dangerous heat. At this
point in time, while we will see a return of hot temperatures
generally in the 95- 100 range on Monday and especially Tuesday,
the dew points and thus humidity look less than what we saw this
week.

By midweek the upper high expands and the center shifts further
south as the westerlies become established across the northern
tier of the CONUS. This pattern evolution will likely bring an
east-west cold front either into the area by Wednesday or wavering
just to our north, along with associated shower and storms
chances.

Glass

&&

.AVIATION...  (For the 06z TAFs through 06z Friday Night)
Issued at 1150 PM CDT Thu Jun 16 2022

Showers and thunderstorms are still expected to move southeast
into the region from eastern Nebraska overnight into the morning
hours tomorrow. Additional thunderstorm development is possible
overnight along the stalled frontal boundary stretching from KMCI
to KHAE to KBMI. Both chances for thunderstorms will impact the
terminals between 08 and 13Z. MVFR flight conditions due to heavy
rain and lower cigs. Once thunderstorms move out of terminals,
conditions will improve to VFR flight conditions and remain there
through the remainder of the TAF period.

Winds will slowly shift from the southwest to the north as the
boundary slides southward overnight and through the day tomorrow.

SPECIFICS FOR KSTL:
Showers and thunderstorms are expected to move into the terminal
area overnight into the morning tomorrow, largely between 9 and
13Z. MVFR flight conditions are possible underneath individual
thunderstorms from heavy rain and lowering cigs. Conditions will
improve to VFR flight conditions once the thunderstorms exit the
area. Winds will shift from the southwest to the north through the
morning.

MRM

&&

.LSX WATCHES/WARNINGS/ADVISORIES...
MO...Heat Advisory until 8 PM CDT this evening for Cole MO-Crawford
     MO-Gasconade MO-Iron MO-Madison MO-Moniteau MO-Osage MO-
     Reynolds MO-Washington MO.

IL...None.
&&

WFO LSX
Hazardous weather outlook, Jun 17, 4:02 AM CDT, 38 minutes before
Hazardous Weather Outlook
National Weather Service Saint Louis MO
402 AM CDT Fri Jun 17 2022

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-180915-
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-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-
402 AM CDT Fri Jun 17 2022

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.

Thunderstorms, some strong to severe with damaging winds, will
impact parts of northeast, central and east central Missouri and
western Illinois early this morning. Locally heavy rain is possible
with these storms as well.

A heat advisory remains in effect through early this evening for
southeast Missouri and parts of central Missouri due to dangerous
levels of heat.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Dangerous heat returns next week with heat index values in excess of
100 degrees across parts of the area on Tuesday and Wednesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely be needed for parts of northeast and
east central Missouri and western Illinois this morning.

Glass

In the hours before

Local storm report, Jun 17, 3:17 AM CDT, 1 hour 23 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
317 AM CDT FRI JUN 17 2022

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

0304 AM     TSTM WND GST     2 NW GRANVILLE          39.59N 92.13W
06/17/2022  E50 MPH          MONROE             MO   PUBLIC

            REPORT OF 50 MPH WIND GUST AS WELL AS RAIN
            RATE OF 2.3 INCHES PER HOUR.

&&

LSJ
Local storm report, Jun 17, 3:41 AM CDT, 59 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
341 AM CDT FRI JUN 17 2022

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

0321 AM     TSTM WND GST     1 SSE MONROE CITY       39.64N 91.72W
06/17/2022  M74 MPH          MONROE             MO   MESONET

            MISSOURI MESONET.

&&

BRITT
Local storm report, Jun 17, 3:53 AM CDT, 47 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
353 AM CDT FRI JUN 17 2022

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

0343 AM     TSTM WND DMG     CENTER                  39.51N 91.53W
06/17/2022                   RALLS              MO   911 CALL CENTER

            TREE DOWN ON HOUSE IN CENTER. TREE DOWN ON
            HIGHWAY HH NORTH OF NEW LONDON AND MULTIPLE
            REPORTS OF POWER OUT IN HANNIBAL.

&&

BRITT

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 16, 9:18 PM CDTAreal Flood AdvisoryLSXMonroe3 hr
Jun 16, 10:09 PM CDTSevere Thunderstorm WarningLSXMonroe, Shelby36 min
Jun 16, 10:36 PM CDTAreal Flood AdvisoryLSXMonroe114 min
Jun 17, 1:49 AM CDTSevere Thunderstorm WarningLSXKnox41 min
Jun 17, 2:40 AM CDTSevere Thunderstorm WarningLSXKnox, Lewis, Shelby50 min
Jun 17, 3:02 AM CDTSevere Thunderstorm WarningLSXAudrain, Marion, Monroe, Ralls, Shelby43 min
Jun 17, 3:11 AM CDTSevere Thunderstorm WarningLSXLewis, Marion, Shelby34 min
Jun 17, 3:38 AM CDTSevere Thunderstorm Warning Considerable damage threatLSXAudrain, Marion, Monroe, Montgomery, Pike, Ralls52 min
Jun 17, 3:59 AM CDTSevere Thunderstorm WarningLSXCallaway, Franklin, Gasconade, Lincoln, Montgomery, Osage and 2 more46 min
Jun 17, 5:07 AM CDTSevere Thunderstorm WarningLSXFranklin, Jefferson, Saint Louis68 min
Jun 17, 5:23 AM CDTSevere Thunderstorm WarningLSXFranklin, Jefferson, Sainte Genevieve, Saint Francois, Washington37 min
Jun 17, 5:45 AM CDTSevere Thunderstorm WarningLSXJefferson, Sainte Genevieve, Saint Francois60 min
Jun 17, 3:36 AM CDTFlash Flood WarningLSXAdams, Brown3 hr
Jun 17, 4:04 AM CDTSevere Thunderstorm WarningLSXCalhoun, Greene, Pike41 min
Jun 17, 5:10 AM CDTSevere Thunderstorm WarningLSXBond, Madison, Montgomery50 min
Jun 17, 5:32 AM CDTSevere Thunderstorm Warning Considerable damage threatLSXClinton, Fayette, Marion, Washington73 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2022Severe Thunderstorm Warnings in Missouri, 2022Every severe thunderstorm warning in 2022

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.