Alert archive / Missouri / Tornado Warnings in 2018

Tornado Warning 9, NWS St. Louis, MO

June 28, 2018Saint Charles County, Saint Louis County, City of Saint Louis, Missouri; Madison County, Illinois

NWS St. Louis, MO issued this tornado warning at Jun 28, 2018, 5:29 PM CDT for Saint Charles County, Saint Louis County, City of Saint Louis, Missouri; Madison County, Illinois. It was in force for 16 min. 14 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 28, 2018, 5:29 PM CDT (22:29 UTC)
Expired: Jun 28, 2018, 5:45 PM CDT
In force: 16 min
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Madison County, IL, City of Saint Louis, MO, Saint Charles County, MO, Saint Louis County, MO

The radar

The St Louis radar (KLSX), 47 km from the middle of the area, began a volume at 22:31 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
Jun 28, 5:30 PM CDT	TSTM WND DMG	2 Wsw Alton, IL	TRAINED SPOTTER REPORTED CONSTRUCTION TRAILER AT FIREWORKS STAND BLOWN OFF BLOCKS.
Jun 28, 5:33 PM CDT	TSTM WND DMG	1 Ene Riverview, MO	LARGE TREE FELL ONTO HOUSE BREAKING THROUGH HALF OF THE HOUSE AND DESTROYING THE ENTIRE ROOM.
Jun 28, 5:33 PM CDT	TSTM WND DMG	Spanish Lake, MO	CORRECTS PREVIOUS TSTM WND DMG REPORT FROM SPANISH LAKE. REPORT VIA SOCIAL MEDIA OF TREE DOWN. ALSO A SHED TORN OFF. TIME ESTIMATED FROM RADAR.
Jun 28, 5:33 PM CDT	TSTM WND DMG	Spanish Lake, MO	CORRECTS PREVIOUS TSTM WND DMG REPORT FROM SPANISH LAKE. REPORT VIA SOCIAL MEDIA OF TREE DOWN. ALSO A SHED TORN OFF. TIME ESTIMATED FROM RADAR.
Jun 28, 5:33 PM CDT	TSTM WND DMG	Spanish Lake, MO	REPORT VIA SOCIAL MEDIA OF TREE DOWN. TIME ESTIMATED FROM RADAR.
Jun 28, 5:34 PM CDT	TSTM WND DMG	2 Wsw Alton, IL	LARGE TREE DOWN AND FELL ON NEIGHBORS GARAGE.
Jun 28, 5:36 PM CDT	TSTM WND DMG	2 Wnw Spanish Lake, MO	BUS STOP BLOWN INTO THE STREET AND MANY LIMBS DOWN.
Jun 28, 5:36 PM CDT	TSTM WND DMG	2 Wnw Spanish Lake, MO	CORRECTS PREVIOUS TSTM WND DMG REPORT FROM 2 WNW SPANISH LAKE. BUS STOP BENCH BLOWN INTO THE STREET AND MANY LIMBS DOWN.
Jun 28, 5:38 PM CDT	TSTM WND DMG	1 Ese Riverview, MO	LARGE TREE BRANCHES ON POWER LINES AND BLOCKING RIVERVIEW DRIVE NEAR CHAMBERS ROAD.
Jun 28, 5:38 PM CDT	TSTM WND DMG	1 Nnw Ferguson, MO	REPORT VIA SOCIAL MEDIA OF TREE DOWN.
Jun 28, 5:42 PM CDT	TSTM WND DMG	2 Wsw Alton, IL	4 TO 5 INCH DIAMETER TREE LIMBS DOWN.
Jun 28, 5:44 PM CDT	TSTM WND DMG	1 Sw Granite City, IL	MEDIA REPORT VIA SOCIAL MEDIA OF TREE DOWN IN GRANITE CITY.
Jun 28, 5:44 PM CDT	TSTM WND DMG	1 Wsw Granite City, IL	MEDIA REPORT VIA SOCIAL MEDIA OF LARGE TREES UPROOTED. TIME ESTIMATED FROM RADAR.
Jun 28, 5:49 PM CDT	TSTM WND DMG	Granite City, IL	SEVERAL LARGE TREES DOWN IN WILSON PARK.

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

The watch it was issued in

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

Issued	Product	Office	Lasted
Jun 28, 1:04 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 10.5 hours before the alert went out and 204 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 7 J/kg
Mixed-layer CIN: -572 J/kg
Mixed-layer LCL: 1140 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: 68 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

984 
WFUS53 KLSX 282229
TORLSX
ILC119-MOC183-189-510-282300-
/O.NEW.KLSX.TO.W.0009.180628T2229Z-180628T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
529 PM CDT THU JUN 28 2018

The National Weather Service in St Louis has issued a

* Tornado Warning for...
  Southwestern Madison County in southwestern Illinois...
  Northeastern St. Louis City in east central Missouri...
  East central St. Charles County in east central Missouri...
  Northeastern St. Louis County in east central Missouri...

* Until 600 PM CDT.

* At 528 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over Black Jack, moving southeast at 40 mph.

  HAZARD...Tornado.

  SOURCE...Weather spotters reported funnel cloud.

  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.

* Locations impacted include...
  St. Louis, Florissant, Granite City, Alton, Hazelwood,
  Edwardsville, Ferguson, Godfrey, Jennings, Bellefontaine Neighbors,
  Wood River, Black Jack, Pontoon Beach, Dellwood, Madison,
  Riverview, Venice, Spanish Lake, East Alton and Moline Acres.

This also includes  Confluence State Park and Horseshoe Lake State
Park.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid 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 3878 8999 3866 9016 3866 9018 3880 9037
      3891 9021
TIME...MOT...LOC 2228Z 314DEG 36KT 3882 9023 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

Kanofsky

3 follow-up statements

264 
WWUS53 KLSX 282234
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
534 PM CDT THU JUN 28 2018

MOC183-282244-
/O.CAN.KLSX.TO.W.0009.000000T0000Z-180628T2300Z/
St. Charles MO-
534 PM CDT THU JUN 28 2018

...THE TORNADO WARNING FOR EAST CENTRAL ST. CHARLES COUNTY IS
CANCELLED...
    
The tornadic portion of the thunderstorm which prompted the warning 
has moved out of the warned area. Therefore, the warning has been 
cancelled.

A Severe Thunderstorm Watch remains in effect until 700 PM CDT for
southwestern Illinois...and east central Missouri.

LAT...LON 3866 9016 3866 9018 3877 9033 3885 9025
      3882 9019 3882 9017 3875 9003
TIME...MOT...LOC 2234Z 323DEG 37KT 3875 9022 

$$

ILC119-MOC189-510-282300-
/O.CON.KLSX.TO.W.0009.000000T0000Z-180628T2300Z/
Madison IL-St. Louis City MO-St. Louis MO-
534 PM CDT THU JUN 28 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM CDT FOR
SOUTHWESTERN MADISON COUNTY IN SOUTHWESTERN ILLINOIS AND NORTHEASTERN
ST. LOUIS COUNTIES IN EAST CENTRAL MISSOURI AND NORTHEASTERN ST.
LOUIS CITY...
        
At 534 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Riverview, moving southeast at 45 mph.

HAZARD...Tornado.

SOURCE...Weather spotters reported a funnel cloud.

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.

Locations impacted include...
St. Louis, Florissant, Granite City, Hazelwood, Ferguson, Jennings,
Bellefontaine Neighbors, Black Jack, Pontoon Beach, Dellwood,
Madison, Riverview, Venice, Spanish Lake, Moline Acres, Calverton
Park, Brooklyn, Castle Point, Glasgow Village and Mitchell.

This also includes  Horseshoe Lake State Park.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid 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 3866 9016 3866 9018 3877 9033 3885 9025
      3882 9019 3882 9017 3875 9003
TIME...MOT...LOC 2234Z 323DEG 37KT 3875 9022 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

Kanofsky

577 
WWUS53 KLSX 282241
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
541 PM CDT THU JUN 28 2018

ILC119-MOC189-510-282300-
/O.CON.KLSX.TO.W.0009.000000T0000Z-180628T2300Z/
Madison IL-St. Louis City MO-St. Louis MO-
541 PM CDT THU JUN 28 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM CDT FOR
SOUTHWESTERN MADISON COUNTY IN SOUTHWESTERN ILLINOIS AND EAST CENTRAL
ST. LOUIS COUNTIES IN EAST CENTRAL MISSOURI AND NORTHEASTERN ST.
LOUIS CITY...
        
At 541 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Madison, moving southeast at 40 mph.

HAZARD...Tornado.

SOURCE...Weather spotters reported a funnel cloud.

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.

Locations impacted include...
St. Louis, Granite City, Jennings, Bellefontaine Neighbors, Pontoon
Beach, Madison, Riverview, Venice, Spanish Lake, Moline Acres,
Flordell Hills, Brooklyn, Glasgow Village and Castle Point.

This also includes  Horseshoe Lake State Park.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid 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 3866 9016 3866 9018 3873 9028 3875 9025
      3880 9018 3878 9014 3873 9005
TIME...MOT...LOC 2241Z 314DEG 36KT 3870 9015 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

Kanofsky

377 
WWUS53 KLSX 282245
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
545 PM CDT THU JUN 28 2018

ILC119-MOC189-510-282255-
/O.CAN.KLSX.TO.W.0009.000000T0000Z-180628T2300Z/
Madison IL-St. Louis City MO-St. Louis MO-
545 PM CDT THU JUN 28 2018

...THE TORNADO WARNING FOR SOUTHWESTERN MADISON COUNTY IN
SOUTHWESTERN ILLINOIS AND EAST CENTRAL ST. LOUIS COUNTIES IN EAST
CENTRAL MISSOURI AND NORTHEASTERN ST. LOUIS CITY IS CANCELLED...
    
The tornado threat has diminished and the Tornado Warning has been 
cancelled. However, damaging winds remain likely and a Severe 
Thunderstorm Warning remains in effect for the area.

A Severe Thunderstorm Watch remains in effect until 700 PM CDT for
southwestern Illinois...and east central Missouri.

Remember, a Severe Thunderstorm Warning still remains in effect for
portions of these counties.

LAT...LON 3866 9016 3866 9018 3873 9028 3875 9025
      3880 9018 3878 9014 3873 9005
TIME...MOT...LOC 2244Z 314DEG 36KT 3867 9012 

$$

Kanofsky

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 28, 4:34 AM CDT	Severe Thunderstorm Warning	LSX	Boone	41 min
Jun 28, 4:51 AM CDT	Severe Thunderstorm Warning	LSX	Audrain, Montgomery, Pike	39 min
Jun 28, 5:12 AM CDT	Severe Thunderstorm Warning	LSX	Audrain, Boone	2 min
Jun 28, 5:18 AM CDT	Severe Thunderstorm Warning	LSX	Audrain, Boone, Callaway	42 min
Jun 28, 5:26 AM CDT	Flash Flood Warning	LSX	Boone	4 hr
Jun 28, 5:58 AM CDT	Severe Thunderstorm Warning	LSX	Boone, Callaway	47 min
Jun 28, 6:17 AM CDT	Flash Flood Warning	LSX	Audrain, Callaway	3 hr
Jun 28, 6:54 AM CDT	Special Weather Statement	LSX	Marion, Ralls	36 min
Jun 28, 7:34 AM CDT	Severe Thunderstorm Warning	LSX	Monroe, Ralls	41 min
Jun 28, 7:58 AM CDT	Severe Thunderstorm Warning	LSX	Ralls	47 min
Jun 28, 8:03 AM CDT	Severe Thunderstorm Warning	LSX	Jefferson	42 min
Jun 28, 8:23 AM CDT	Special Weather Statement	LSX	Ralls	37 min
Jun 28, 8:37 AM CDT	Severe Thunderstorm Warning	LSX	Sainte Genevieve, Saint Francois	38 min
Jun 28, 8:49 AM CDT	Special Weather Statement	LSX	Madison	41 min
Jun 28, 8:53 AM CDT	Severe Thunderstorm Warning	LSX	Audrain, Pike, Ralls	33 min
Jun 28, 8:59 AM CDT	Severe Thunderstorm Warning	LSX	Madison	34 min
Jun 28, 2:00 PM CDT	Severe Thunderstorm Warning	LSX	Knox, Lewis, Shelby	60 min
Jun 28, 2:37 PM CDT	Severe Thunderstorm Warning	LSX	Lewis, Marion	53 min
Jun 28, 2:50 PM CDT	Severe Thunderstorm Warning	LSX	Knox, Lewis, Marion, Shelby	40 min
Jun 28, 3:21 PM CDT	Severe Thunderstorm Warning	LSX	Marion, Monroe, Pike, Ralls, Shelby	69 min
Jun 28, 3:52 PM CDT	Excessive Heat Warning	LSX	Jefferson, Saint Charles, Sainte Genevieve, Saint Louis, City of Saint Louis	3 days
Jun 28, 4:00 PM CDT	Severe Thunderstorm Warning	LSX	Pike, Ralls	60 min
Jun 28, 4:35 PM CDT	Severe Thunderstorm Warning	LSX	Lincoln	40 min
Jun 28, 5:02 PM CDT	Severe Thunderstorm Warning	LSX	Lincoln, Saint Charles, Saint Louis	73 min
Jun 28, 5:22 PM CDT	Severe Thunderstorm Warning	LSX	Jefferson, Saint Charles, Saint Louis, City of Saint Louis	83 min
Jun 28, 4:18 PM CDT	Special Weather Statement	LSX	Greene, Macoupin	57 min
Jun 28, 4:39 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Greene, Jersey, Macoupin, Montgomery, Pike	66 min
Jun 28, 5:54 PM CDT	Tornado Warning	LSX	Saint Clair	17 min
Jun 28, 5:59 PM CDT	Areal Flood Advisory	LSX	Jersey, Madison	3 hr
Jun 28, 6:21 PM CDT	Severe Thunderstorm Warning	LSX	Clinton, Marion, Monroe, Randolph, Saint Clair, Washington	69 min
Jun 28, 6:48 PM CDT	Areal Flood Advisory	LSX	Bond, Clinton, Fayette, Madison, Marion, Monroe and 2 more	3 hr
Jun 28, 6:56 PM CDT	Severe Thunderstorm Warning	LSX	Monroe, Randolph	64 min

Nearby

Tornado Warnings in Missouri, 2018 Tornado Warnings in Illinois, 2018 Every tornado warning in 2018 Tornadoes in 2018

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.