Alert archive / Illinois / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 74, NWS St. Louis, MO

May 11, 20165 counties in Illinois

NWS St. Louis, MO issued this severe thunderstorm warning at May 11, 2016, 2:32 PM CDT for 5 counties in Illinois. It was in force for 43 min. 17 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: May 11, 2016, 2:32 PM CDT (19:32 UTC)
Expired: May 11, 2016, 3:15 PM CDT
In force: 43 min
Issued by: NWS St. Louis, MO
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Bond County, IL, Clinton County, IL, Fayette County, IL, Madison County, IL, Washington County, IL

The radar

The St Louis radar (KLSX), 110 km from the middle of the area, began a volume at 19:31 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
May 11, 2:35 PM CDT	TSTM WND GST 70	New Baden, IL
May 11, 2:38 PM CDT	TSTM WND DMG	New Baden, IL	NUMEROUS TREES DOWN
May 11, 2:40 PM CDT	TSTM WND GST 76	3 S New Baden, IL
May 11, 2:45 PM CDT	TSTM WND DMG	Breese, IL	NUMEROUS TREES DOWN...TOP PART OF A SILO BLOWN OFF...POWER LINES DOWN
May 11, 2:48 PM CDT	TSTM WND DMG	Breese, IL	POWER LINES DOWN.
May 11, 2:50 PM CDT	TSTM WND DMG	Aviston, IL	12 INCH DIAMETER TREE DOWN.
May 11, 2:50 PM CDT	HAIL 0.5	Aviston, IL
May 11, 2:55 PM CDT	TSTM WND DMG	2 Sw Okawville, IL	POWER LINES DOWN
May 11, 2:55 PM CDT	TSTM WND DMG	Carlyle, IL	NUMEROUS TREES AND POWER LINES DOWN
May 11, 2:55 PM CDT	TSTM WND DMG	Okawville, IL	TREES AND POWER LINES DOWN
May 11, 2:56 PM CDT	TSTM WND DMG	Breese, IL	A FEW 1.5 DIAMETER TREES DOWN. SHINGLES BLOWN OFF OF A FEW ROOFS.
May 11, 2:56 PM CDT	TSTM WND DMG	Breese, IL	A FEW 1.5 FT DIAMETER TREES DOWN. SHINGLES BLOWN OFF OF A FEW ROOFS.
May 11, 3:00 PM CDT	TSTM WND DMG	Carlyle, IL	NUMEROUS TREES AND POWERLINES DOWN. PONDING ON ROADS AS WELL
May 11, 3:00 PM CDT	HAIL 1	2 N Breese, IL
May 11, 3:05 PM CDT	TSTM WND DMG	Nashville, IL	TREES DOWN
May 11, 3:05 PM CDT	TSTM WND DMG	New Minden, IL	FEW TREES AND LIMBS DOWN
May 11, 3:08 PM CDT	TSTM WND DMG	Carlyle, IL	TREES DOWN IN CARLYLE. ONE TREE KNOCKED DOWN A POWER POLE NEAR US 50 AND IL 127.

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
May 11, 12:10 PM CDT	Severe Thunderstorm Watch	SPC	12 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 7.5 hours before the alert went out and 192 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 905 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 29 m²/s²
0-3 km storm-relative helicity: 120 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

890 
WUUS53 KLSX 111932
SVRLSX
ILC005-027-051-119-189-112015-
/O.NEW.KLSX.SV.W.0074.160511T1932Z-160511T2015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
232 PM CDT WED MAY 11 2016

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WASHINGTON COUNTY IN SOUTH CENTRAL ILLINOIS...
  CLINTON COUNTY IN SOUTH CENTRAL ILLINOIS...
  BOND COUNTY IN SOUTH CENTRAL ILLINOIS...
  EASTERN MADISON COUNTY IN SOUTHWESTERN ILLINOIS...
  SOUTHWESTERN FAYETTE COUNTY IN SOUTH CENTRAL ILLINOIS...

* UNTIL 315 PM CDT

* AT 232 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM NEAR ALHAMBRA TO 6 MILES NORTHEAST OF NEW ATHENS...
  MOVING EAST AT 55 MPH.

  HAZARD...60 MPH WIND GUSTS AND HALF DOLLAR SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE 
           TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  HIGHLAND...VANDALIA...GREENVILLE...BREESE...NEW BADEN...CARLYLE...
  NASHVILLE...CENTRALIA...TRENTON...AVISTON...OKAWVILLE...ST. ROSE...
  GERMANTOWN...ALBERS...WAMAC...BECKEMEYER...LIVINGSTON...POCAHONTAS...
  LIVELY GROVE AND ALHAMBRA.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 70 IN ILLINOIS BETWEEN EXITS 30 AND 61.
 INTERSTATE 55 IN ILLINOIS NEAR EXIT 37.
 INTERSTATE 64 IN ILLINOIS BETWEEN EXITS 34 AND 61.

THIS ALSO INCLUDES  CARLYLE LAKE RECREATIONAL AREA.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 3821 8915 3822 8970 3865 8971 3898 8979
      3903 8912
TIME...MOT...LOC 1932Z 263DEG 46KT 3887 8980 3837 8978 

HAIL...1.25IN
WIND...60MPH
 
$$

GLASS

2 follow-up statements

553 
WWUS53 KLSX 111942
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
242 PM CDT WED MAY 11 2016

ILC005-027-051-119-189-112015-
/O.CON.KLSX.SV.W.0074.000000T0000Z-160511T2015Z/
WASHINGTON IL-CLINTON IL-BOND IL-MADISON IL-FAYETTE IL-
242 PM CDT WED MAY 11 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM CDT
FOR WASHINGTON...CLINTON AND BOND COUNTIES IN SOUTH CENTRAL
ILLINOIS...EASTERN MADISON COUNTY IN SOUTHWESTERN ILLINOIS AND
SOUTHWESTERN FAYETTE COUNTIES IN SOUTH CENTRAL ILLINOIS...

AT 242 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR POCAHONTAS TO NEAR OKAWVILLE...MOVING EAST AT 60
MPH.

HAZARD...70 MPH WIND GUSTS AND HALF DOLLAR SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT CONSIDERABLE 
         TREE DAMAGE. WIND DAMAGE IS ALSO LIKELY TO MOBILE HOMES...
         ROOFS...AND OUTBUILDINGS. 

LOCATIONS IMPACTED INCLUDE...
HIGHLAND...VANDALIA...GREENVILLE...BREESE...NEW BADEN...CARLYLE...
NASHVILLE...CENTRALIA...TRENTON...AVISTON...OKAWVILLE...ST. ROSE...
GERMANTOWN...ALBERS...WAMAC...BECKEMEYER...LIVINGSTON...POCAHONTAS...LIVELY
GROVE AND ALHAMBRA.

THIS ALSO INCLUDES  CARLYLE LAKE RECREATIONAL AREA.
 
THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 70 IN ILLINOIS BETWEEN EXITS 30 AND 61.
 INTERSTATE 55 IN ILLINOIS NEAR EXIT 37.
 INTERSTATE 64 IN ILLINOIS BETWEEN EXITS 34 AND 61.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

INTENSE THUNDERSTORM LINES CAN PRODUCE BRIEF TORNADOES AND WIDESPREAD
SIGNIFICANT WIND DAMAGE. ALTHOUGH A TORNADO IS NOT IMMEDIATELY
LIKELY...IT IS BEST TO MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF
A BUILDING. THESE STORMS MAY CAUSE SERIOUS INJURY AND SIGNIFICANT
PROPERTY DAMAGE.

&&

LAT...LON 3821 8915 3822 8970 3865 8971 3898 8979
      3903 8912
TIME...MOT...LOC 1942Z 263DEG 53KT 3889 8959 3839 8957 

TORNADO...POSSIBLE
HAIL...1.25IN
WIND...70MPH
 
$$

GLASS

492 
WWUS53 KLSX 111958
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
258 PM CDT WED MAY 11 2016

ILC005-027-051-119-189-112015-
/O.CON.KLSX.SV.W.0074.000000T0000Z-160511T2015Z/
WASHINGTON IL-CLINTON IL-BOND IL-MADISON IL-FAYETTE IL-
258 PM CDT WED MAY 11 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM CDT
FOR WASHINGTON...CLINTON AND BOND COUNTIES IN SOUTH CENTRAL
ILLINOIS...EASTERN MADISON COUNTY IN SOUTHWESTERN ILLINOIS AND
SOUTHWESTERN FAYETTE COUNTIES IN SOUTH CENTRAL ILLINOIS...

AT 258 PM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR BEAVER CREEK TO NASHVILLE...MOVING EAST AT 55 MPH.

HAZARD...70 MPH WIND GUSTS AND PING PONG BALL SIZE HAIL. 

SOURCE...TRAINED WEATHER SPOTTERS. 

IMPACT...PEOPLE AND ANIMALS OUTDOORS WILL BE INJURED. EXPECT HAIL 
         DAMAGE TO ROOFS...SIDING...WINDOWS...AND VEHICLES. EXPECT 
         CONSIDERABLE TREE DAMAGE. WIND DAMAGE IS ALSO LIKELY TO 
         MOBILE HOMES...ROOFS...AND OUTBUILDINGS. 

LOCATIONS IMPACTED INCLUDE...
HIGHLAND...VANDALIA...GREENVILLE...BREESE...NEW BADEN...CARLYLE...
NASHVILLE...CENTRALIA...TRENTON...AVISTON...OKAWVILLE...ST. ROSE...
GERMANTOWN...ALBERS...WAMAC...BECKEMEYER...LIVINGSTON...POCAHONTAS...LIVELY
GROVE AND ALHAMBRA.

THIS ALSO INCLUDES  CARLYLE LAKE RECREATIONAL AREA.
 
THIS INCLUDES THE FOLLOWING HIGHWAYS...
 INTERSTATE 70 IN ILLINOIS BETWEEN EXITS 30 AND 61.
 INTERSTATE 55 IN ILLINOIS NEAR EXIT 37.
 INTERSTATE 64 IN ILLINOIS BETWEEN EXITS 34 AND 61.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE
SHOULD MOVE TO A SHELTER...INSIDE A STRONG BUILDING AND AWAY FROM
WINDOWS.

INTENSE THUNDERSTORM LINES CAN PRODUCE BRIEF TORNADOES AND WIDESPREAD
SIGNIFICANT WIND DAMAGE. ALTHOUGH A TORNADO IS NOT IMMEDIATELY
LIKELY...IT IS BEST TO MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF
A BUILDING. THESE STORMS MAY CAUSE SERIOUS INJURY AND SIGNIFICANT
PROPERTY DAMAGE.

&&

LAT...LON 3821 8915 3822 8970 3865 8971 3898 8979
      3903 8912
TIME...MOT...LOC 1958Z 261DEG 48KT 3875 8936 3834 8938 

TORNADO...POSSIBLE
HAIL...1.50IN
WIND...70MPH
 
$$

GLASS

The office that day

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

Issued	Product	Office	Counties	Lasted
May 11, 3:19 AM CDT	Dense Fog Advisory	LSX	Bond, Brown, Calhoun, Clinton, Fayette, Greene and 10 more	6 hr
May 11, 1:08 PM CDT	Severe Thunderstorm Warning	LSX	Madison, Saint Clair	52 min
May 11, 1:12 PM CDT	Severe Thunderstorm Warning	LSX	Monroe, Saint Clair	48 min
May 11, 1:51 PM CDT	Severe Thunderstorm Warning	LSX	Madison, Saint Clair	54 min
May 11, 1:55 PM CDT	Severe Thunderstorm Warning	LSX	Monroe, Saint Clair	65 min
May 11, 2:12 PM CDT	Severe Thunderstorm Warning	LSX	Monroe, Randolph	63 min
May 11, 3:02 PM CDT	Severe Thunderstorm Warning	LSX	Fayette, Marion	43 min
May 11, 3:13 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Clinton, Fayette, Washington	47 min
May 11, 3:15 PM CDT	Severe Thunderstorm Warning	LSX	Monroe, Randolph, Saint Clair	45 min
May 11, 3:43 PM CDT	Severe Thunderstorm Warning	LSX	Fayette, Marion	33 min
May 11, 3:52 PM CDT	Flash Flood Warning	LSX	Clinton, Monroe, Randolph, Saint Clair, Washington	4 hr
May 11, 3:57 PM CDT	Severe Thunderstorm Warning	LSX	Monroe, Randolph	63 min
May 11, 3:59 PM CDT	Severe Thunderstorm Warning	LSX	Randolph, Saint Clair, Washington	19 min
May 11, 4:45 PM CDT	Severe Thunderstorm Warning	LSX	Monroe, Randolph	60 min
May 11, 5:23 PM CDT	Severe Thunderstorm Warning	LSX	Randolph	52 min
May 11, 5:26 PM CDT	Flash Flood Warning	LSX	Randolph	4 hr
May 11, 6:50 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Greene, Jersey, Pike	40 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2016 Every severe thunderstorm warning in 2016

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.