Alert archive / Illinois / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 13, NWS St. Louis, MO

March 30, 2005Clinton County, Washington County, Illinois

NWS St. Louis, MO issued this severe thunderstorm warning at Mar 30, 2005, 6:59 PM CST for Clinton County, Washington County, Illinois. It was in force for 61 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Mar 30, 2005, 6:59 PM CST (00:59 UTC)
Expired: Mar 30, 2005, 8:00 PM CST
In force: 61 min
Issued by: NWS St. Louis, MO
Area: Counties, with a storm outline in the text

Counties Clinton County, IL, Washington County, IL

The radar

The St Louis radar (KLSX), 113 km from the middle of the area, began a volume at 00:58 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.

The watch it was issued in

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

Issued	Product	Office	Lasted
Mar 30, 12:55 PM CST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 1.0 hours before the alert went out and 189 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: 926 J/kg
Mixed-layer CIN: -45 J/kg
Mixed-layer LCL: 1436 m above ground
0-6 km bulk shear: 70 kt
0-1 km storm-relative helicity: 311 m²/s²
0-3 km storm-relative helicity: 338 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 7.0

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KLSX 310100
SVRLSX
ILC027-189-310200-
/O.NEW.KLSX.SV.W.0013.050331T0059Z-050331T0200Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
659 PM CST WED MAR 30 2005

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CLINTON COUNTY IN SOUTH CENTRAL ILLINOIS
  WASHINGTON COUNTY IN SOUTH CENTRAL ILLINOIS

* UNTIL 800 PM CST

* AT 648 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS.  THESE STORMS WERE LOCATED ALONG A
  LINE EXTENDING FROM JAMESTOWN TO NEW MEMPHIS TO 11 MILES WEST OF   
  LIVELY GROVE...MOVING NORTHEAST AT 50 MPH.

* LOCATIONS IMPACTED INCLUDE...
  OKAWVILLE
  BECKEMEYER
  NASHVILLE
  ASHLEY
  CARLYLE
  IRVINGTON
  SHATTUC
  BOULDER

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. 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 3859 8969 3824 8979 3823 8916 3853 8912
      3854 8913 3882 8913 3882 8918 3874 8960

$$

CVKING

2 follow-up statements

000 
WWUS53 KLSX 310130
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
730 PM CST WED MAR 30 2005

ILC027-189-310200-
/O.CON.KLSX.SV.W.0013.000000T0000Z-050331T0200Z/
WASHINGTON IL-CLINTON IL-
730 PM CST WED MAR 30 2005

...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 800 PM CST FOR
CLINTON AND WASHINGTON COUNTIES...

AT 723 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DIME
SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH FROM KEYESPORT TO
10 MILES SOUTHWEST OF LIVELY GROVE..MOVING NORTHEAST AT 50 MPH.

LOCATIONS NEAR THE PATH OF SEVERE THUNDERSTORMS INCLUDE...
GERMANTOWN...VENEDY...JOHANNISBURG...KEYESPORT...BECKEMEYER...
BARTELSO...STONE CHURCH...KEYESPORT...CARLYLE AND LIVELY GROVE.

TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER...
SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE
WARNING.

LAT...LON 3859 8969 3824 8979 3823 8916 3853 8912
      3854 8913 3882 8913 3882 8918 3874 8960

$$

CVKING

000 
WWUS53 KLSX 310159
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
758 PM CST WED MAR 30 2005

ILC027-189-310208-
/O.CAN.KLSX.SV.W.0013.000000T0000Z-050331T0200Z/
WASHINGTON IL-CLINTON IL-
758 PM CST WED MAR 30 2005

...THE SEVERE THUNDERSTORM WARNING FOR CLINTON AND WASHINGTON
COUNTIES IS CANCELLED...

THE THUNDERSTORMS HAVE WEAKENED BELOW SEVERE LIMITS. GUSTY WINDS TO 
40 MPH AND PEA SIZE HAIL CAN BE EXPECTED WITH THE REMAINING 
THUNDERSTORMS BEFORE THEY QUICKLY MOVE EAST OF THE AREA THIS EVENING.

LAT...LON 3859 8969 3824 8979 3823 8916 3853 8912
      3854 8913 3882 8913 3882 8918 3874 8960

$$

CVKING

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 30, 6:32 PM CST	Severe Thunderstorm Warning	LSX	Clinton, Saint Clair, Washington	28 min
Mar 30, 6:47 PM CST	Severe Thunderstorm Warning	LSX	Fayette	43 min
Mar 30, 6:50 PM CST	Severe Thunderstorm Warning	LSX	Bond, Randolph	47 min
Mar 30, 7:14 PM CST	Severe Thunderstorm Warning	LSX	Randolph	37 min
Mar 30, 7:22 PM CST	Severe Thunderstorm Warning	LSX	Fayette	38 min
Mar 30, 7:46 PM CST	Severe Thunderstorm Warning	LSX	Marion	74 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2005 Every severe thunderstorm warning in 2005

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.