Alert archive / Illinois / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 210, NWS St. Louis, MO

July 5, 2004Bond County, Illinois

NWS St. Louis, MO issued this severe thunderstorm warning at Jul 5, 2004, 8:58 PM CDT for Bond County, Illinois. It was in force for 47 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: Jul 5, 2004, 8:58 PM CDT (01:58 UTC)
Expired: Jul 5, 2004, 9:45 PM CDT
In force: 47 min
Issued by: NWS St. Louis, MO
Area: Counties, with a storm outline in the text

County Bond County, IL

The radar

The St Louis radar (KLSX), 106 km from the middle of the area, began a volume at 02:01 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 nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 2.0 hours before the alert went out and 165 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: 193 J/kg
Mixed-layer CIN: -133 J/kg
Mixed-layer LCL: 1600 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 166 m²/s²
0-3 km storm-relative helicity: 184 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.7

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KLSX 060158
SVRLSX
ILC005-060245-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
858 PM CDT MON JUL 5 2004

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN BOND COUNTY IN SOUTH CENTRAL ILLINOIS

* UNTIL 945 PM CDT

* AT 858 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 7 MILES SOUTHWEST OF POCAHONTAS...MOVING EAST
  AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE...
  POCAHONTAS
  BEAVER CREEK
  GREENVILLE
  TAMALCO

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.

A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA UNTIL 10 PM. 
REMEMBER...SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR 
NO ADVANCE WARNING.

LAT...LON 3888 8962 3875 8961 3875 8927 3891 8927

$$

TES

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 5, 8:07 PM CDT	Severe Thunderstorm Warning	LSX	Madison, Saint Clair	53 min
Jul 5, 8:36 PM CDT	Severe Thunderstorm Warning	LSX	Clinton	54 min
Jul 5, 8:41 PM CDT	Tornado Warning	LSX	Madison	34 min
Jul 5, 9:01 PM CDT	Severe Thunderstorm Warning	LSX	Saint Clair	59 min
Jul 5, 9:22 PM CDT	Severe Thunderstorm Warning	LSX	Marion	53 min
Jul 5, 9:30 PM CDT	Flash Flood Warning	LSX	Madison, Saint Clair	4 hr
Jul 5, 9:36 PM CDT	Severe Thunderstorm Warning	LSX	Monroe	24 min
Jul 5, 9:53 PM CDT	Severe Thunderstorm Warning	LSX	Clinton, Washington	67 min
Jul 5, 9:59 PM CDT	Tornado Warning	LSX	Marion	31 min
Jul 5, 10:46 PM CDT	Severe Thunderstorm Warning	LSX	Randolph, Saint Clair	44 min
Jul 5, 11:14 PM CDT	Severe Thunderstorm Warning	LSX	Washington	61 min
Jul 6, 12:17 AM CDT	Severe Thunderstorm Warning	LSX	Macoupin, Montgomery	43 min
Jul 6, 7:48 AM CDT	Severe Thunderstorm Warning	LSX	Greene, Macoupin	42 min
Jul 6, 12:47 PM CDT	Severe Thunderstorm Warning	LSX	Randolph, Saint Clair, Washington	43 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2004 Every severe thunderstorm warning in 2004

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.