Alert archive / Illinois / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 521, NWS St. Louis, MO

September 22, 2006Adams County, Brown County, Illinois

NWS St. Louis, MO issued this severe thunderstorm warning at Sep 22, 2006, 4:03 PM CDT for Adams County, Brown County, Illinois. It was in force for 42 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: Sep 22, 2006, 4:03 PM CDT (21:03 UTC)
Expired: Sep 22, 2006, 4:45 PM CDT
In force: 42 min
Issued by: NWS St. Louis, MO
Area: Counties, with a storm outline in the text

Counties Adams County, IL, Brown County, IL

The radar

The St Louis radar (KLSX), 133 km from the middle of the area, began a volume at 21:05 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
Sep 22, 1:16 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 9.1 hours before the alert went out and 197 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: 840 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 439 m²/s²
0-3 km storm-relative helicity: 440 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KLSX 222103
SVRLSX
ILC001-009-222145-
/O.NEW.KLSX.SV.W.0521.060922T2103Z-060922T2145Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
403 PM CDT FRI SEP 22 2006

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN ADAMS COUNTY IN WEST CENTRAL ILLINOIS   
  BROWN COUNTY IN WEST CENTRAL ILLINOIS

* UNTIL 445 PM CDT

* AT 400 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL.  THIS
  STORM WAS LOCATED 6 MILES WEST OF BEVERLY...OR ABOUT 15 MILES EAST
  OF HANNIBAL...AND MOVING NORTHEAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE...
  BUCKHORN...
  MOUNT STERLING...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MPH...
DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR
PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME
OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO
AREAS WHERE WATER COVERS THE ROAD.

LAT...LON 3982 9124 3977 9119 3977 9092 3988 9058
      3999 9059 4008 9072

$$

CVKING

1 follow-up statement

000 
WWUS53 KLSX 222126
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
425 PM CDT FRI SEP 22 2006

ILC001-009-222145-
/O.CON.KLSX.SV.W.0521.000000T0000Z-060922T2145Z/
BROWN IL-ADAMS IL-
425 PM CDT FRI SEP 22 2006

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM CDT
FOR SOUTHEASTERN ADAMS AND BROWN COUNTIES...

AT 420 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL.
THIS LINE OF STORMS WAS LOCATED FROM BEVERLY TO MOUNT STERLING. 
THESE STORMS ARE MOVING NORTHEAST AT 45 MPH.

LOCATIONS NEAR THE PATH OF THE SEVERE THUNDERSTORM 
INCLUDE...BEVERLY...BUCHHORN...VERSAILLES...RIPLEY AND COOPERTOWN.

LAT...LON 3982 9124 3977 9119 3977 9092 3988 9058
      3999 9059 4008 9072

$$

CVKING

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 22, 4:28 PM CDT	Severe Thunderstorm Warning	LSX	Washington	47 min
Sep 22, 4:37 PM CDT	Tornado Warning	LSX	Washington	30 min
Sep 22, 4:47 PM CDT	Tornado Warning	LSX	Pike	28 min
Sep 22, 4:49 PM CDT	Tornado Warning	LSX	Monroe	41 min
Sep 22, 5:09 PM CDT	Tornado Warning	LSX	Brown, Pike	26 min
Sep 22, 5:11 PM CDT	Severe Thunderstorm Warning	LSX	Saint Clair, Washington	49 min
Sep 22, 5:14 PM CDT	Severe Thunderstorm Warning	LSX	Saint Clair	46 min
Sep 22, 5:28 PM CDT	Tornado Warning	LSX	Monroe	47 min
Sep 22, 5:30 PM CDT	Tornado Warning	LSX	Washington	45 min
Sep 22, 6:01 PM CDT	Tornado Warning	LSX	Saint Clair	24 min
Sep 22, 6:38 PM CDT	Severe Thunderstorm Warning	LSX	Washington	52 min
Sep 22, 6:39 PM CDT	Tornado Warning	LSX	Washington	35 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.