Alert archive / Illinois / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 430, NWS St. Louis, MO

July 19, 20064 counties in Illinois

NWS St. Louis, MO issued this severe thunderstorm warning at Jul 19, 2006, 5:35 PM CDT for 4 counties in Illinois. It was in force for 55 min. 16 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: Jul 19, 2006, 5:35 PM CDT (22:35 UTC)
Expired: Jul 19, 2006, 6:30 PM CDT
In force: 55 min
Issued by: NWS St. Louis, MO
Area: Counties, with a storm outline in the text

Counties Greene County, IL, Jersey County, IL, Macoupin County, IL, Montgomery County, IL

The radar

The Lincoln radar (KILX), 98 km from the middle of the area, began a volume at 22:35 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
Jul 19, 5:35 PM CDT	TSTM WND DMG	Winchester, IL	POWER LINES DOWN
Jul 19, 5:40 PM CDT	TSTM WND DMG	Waverly, IL	TREES DOWN ACROSS ALL OF CITY WITH POWER LINES DOWN. FROM COUNTY SHERIFF.
Jul 19, 5:44 PM CDT	TSTM WND DMG	2 E Chatham, IL	TREE DOWN.
Jul 19, 5:44 PM CDT	HAIL 0.88	3 E Chatham, IL
Jul 19, 5:50 PM CDT	HAIL 0.88	Divernon, IL
Jul 19, 6:02 PM CDT	HAIL 0.88	Virden, IL	REPORT FROM JIM PITCHFORD.
Jul 19, 6:05 PM CDT	TSTM WND DMG	2 E Roodhouse, IL	FIRETRUCK BLOWN OFF THE ROAD.
Jul 19, 6:11 PM CDT	TSTM WND DMG	Kincaid, IL	NUMEROUS TRESS AND POWER LINES DOWN.
Jul 19, 6:12 PM CDT	HAIL 0.88	Carlinville, IL
Jul 19, 6:15 PM CDT	TSTM WND DMG	Jerseyville, IL	POWER LINES AND 5 TO 6 INCH DIAMETER TREE LIMBS DOWNED.
Jul 19, 6:20 PM CDT	TSTM WND DMG	Medora, IL	TREES AND LIMBS DOWN...DAMAGE TO CORN FIELDS
Jul 19, 6:25 PM CDT	TSTM WND DMG	Carlinville, IL	LARGE TREE LIMBS DOWN, 4 TO 5 INCH DIAMETER.
Jul 19, 6:30 PM CDT	TSTM WND DMG	Carlinville, IL	POWER LINES AND LARGE TREE BRANCHES DOWN.
Jul 19, 6:35 PM CDT	TSTM WND GST 88	2 Nw Bunker Hill, IL
Jul 19, 6:35 PM CDT	TSTM WND GST 92	1 Nw Bunker Hill, IL	FULL SIZE PICKUP TRUCK BLOWN INTO DITCH.
Jul 19, 6:40 PM CDT	TSTM WND GST 60	Brighton, IL	POWER LINES DOWN

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

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 10.6 hours before the alert went out and 141 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: 1900 J/kg
Mixed-layer CIN: -143 J/kg
Mixed-layer LCL: 874 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: -5 m²/s²
0-3 km storm-relative helicity: 60 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS53 KLSX 192235
SVRLSX
ILC061-083-117-135-192330-
/O.NEW.KLSX.SV.W.0430.060719T2235Z-060719T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
535 PM CDT WED JUL 19 2006

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MONTGOMERY COUNTY IN SOUTH CENTRAL ILLINOIS
  GREENE COUNTY IN SOUTHWEST ILLINOIS
  JERSEY COUNTY IN SOUTHWEST ILLINOIS
  MACOUPIN COUNTY IN SOUTHWEST ILLINOIS

* UNTIL 630 PM CDT

* AT 533 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING NICKEL SIZE
  HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 80 MPH.  THESE STORMS
  WERE LOCATED ALONG A LINE EXTENDING FROM 8 MILES NORTH OF ROODHOUSE
  TO 11 MILES NORTH OF WHITE OAK...OR ALONG A LINE EXTENDING FROM
  WINCHESTER TO 8 MILES SOUTHEAST OF SPRINGFIELD...AND MOVING SOUTH
  AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  ROODHOUSE...
  VIRDEN...
  ATHENSVILLE...
  WHITE HALL...
  WHITE OAK...
  PALMYRA...
  GIRARD...
  GREENFIELD...
  FARMERSVILLE...
  RAYMOND...

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

LAT...LON 3965 9054 3977 8949 3924 8917 3907 8936
      3900 9047

$$

GLASS

2 follow-up statements

000 
WWUS53 KLSX 192302
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
602 PM CDT WED JUL 19 2006

ILC061-083-117-135-192330-
/O.CON.KLSX.SV.W.0430.000000T0000Z-060719T2330Z/
MONTGOMERY IL-JERSEY IL-GREENE IL-MACOUPIN IL-
602 PM CDT WED JUL 19 2006

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM CDT
FOR MACOUPIN...GREENE...JERSEY AND MONTGOMERY COUNTIES...

AT 558 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING NICKEL
SIZE HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM HAYPRESS TO GREENFIELD TO 6
MILES EAST OF FARMERSVILLE...OR ALONG A LINE EXTENDING FROM 10 MILES
SOUTHWEST OF WHITE HALL TO 14 MILES WEST OF CARLINVILLE TO 13 MILES
EAST OF VIRDEN...MOVING SOUTH AT 45 MPH.

LOCATIONS NEAR THE PATH OF SEVERE THUNDERSTORMS INCLUDE...
RAYMOND...KEMPER...KANE...CARLINVILLE...WENONAH...NOKOMIS...
COALTON...PLAINVIEW...WITT AND SHIPMAN.

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

LAT...LON 3953 9060 3950 8961 3924 8917 3907 8936
      3900 9047

$$

GLASS

000 
WWUS53 KLSX 192317
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
617 PM CDT WED JUL 19 2006

ILC061-083-117-135-192330-
/O.CON.KLSX.SV.W.0430.000000T0000Z-060719T2330Z/
MONTGOMERY IL-JERSEY IL-GREENE IL-MACOUPIN IL-
617 PM CDT WED JUL 19 2006

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM CDT
FOR MACOUPIN...GREENE...JERSEY AND MONTGOMERY COUNTIES...

AT 612 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING NICKEL
SIZE HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM HAYPRESS TO KEMPER TO
CARLINVILLE TO HARVEL...OR ALONG A LINE EXTENDING FROM 9 MILES
SOUTHWEST OF WHITE HALL TO 12 MILES NORTHEAST OF JERSEYVILLE TO
CARLINVILLE TO 12 MILES SOUTHEAST OF VIRDEN...MOVING SOUTH AT 45 MPH.

LOCATIONS NEAR THE PATH OF SEVERE THUNDERSTORMS INCLUDE...
NOKOMIS...COALTON...SHIPMAN...ROYAL LAKES...PRUETT...WILSONVILLE...
BUTLER AND WITT.

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS AND LARGE
DAMAGING HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY
AWAY FROM WINDOWS

LAT...LON 3953 9060 3950 8961 3924 8917 3907 8936
      3900 9047

$$

GLASS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 19, 6:28 PM CDT	Severe Thunderstorm Warning	LSX	Jersey, Macoupin, Madison, Montgomery	62 min
Jul 19, 6:30 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Greene	45 min
Jul 19, 6:49 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Clinton, Fayette, Madison, Saint Clair	43 min
Jul 19, 6:53 PM CDT	Tornado Warning	LSX	Macoupin, Madison	52 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2006 Every severe thunderstorm warning in 2006

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.