Alert archive / Illinois / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 288, NWS St. Louis, MO

June 25, 2000Brown County, Illinois

NWS St. Louis, MO issued this severe thunderstorm warning at Jun 25, 2000, 11:26 PM CDT for Brown County, Illinois. It was in force for 49 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued: Jun 25, 2000, 11:26 PM CDT (04:26 UTC)
Expired: Jun 26, 2000, 12:15 AM CDT
In force: 49 min
Issued by: NWS St. Louis, MO
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Brown County, IL

The radar

The Lincoln radar (KILX), 125 km from the middle of the area, began a volume at 04:08 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
Jun 25, 10:45 PM CDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 4.4 hours before the alert went out and 180 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: 787 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 1133 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 3 m²/s²
0-3 km storm-relative helicity: 30 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 260427
SVRSTL
ILC009-260515-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1126 PM CDT SUN JUN 25 2000

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

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

* UNTIL 1215 AM CDT

* AT 1126 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER MOUNT STERLING...MOVING EAST AT 35 MPH.

* LOCATIONS IN THE PATH...

   MOUNT STERLING 
   BUCKHORN
   RURAL EASTERN BROWN COUNTY

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.

THIS STORM HAS A HISTORY OF DAMAGING WINDS. TAKE SHELTER IN A STURDY
BUILDING IMMEDIATELY.

THE PRIMARY THREAT POSED BY THIS STORM IS DAMAGING WINDS. MOVE
QUICKLY TO THE INTERIOR PORTION OF A STURDY SHELTER...AND STAY AWAY
FROM OUTSIDE WALLS AND WINDOWS.

LAT...LON 4014 9094 3986 9093 3985 9060 4008 9056

RP5

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 25, 10:30 PM CDT	Severe Thunderstorm Warning	LSX	Adams	45 min
Jun 25, 10:50 PM CDT	Severe Thunderstorm Warning	LSX	Pike	40 min
Jun 25, 11:14 PM CDT	Tornado Warning	LSX	Pike	46 min
Jun 26, 12:03 AM CDT	Severe Thunderstorm Warning	LSX	Pike	42 min
Jun 26, 12:14 AM CDT	Severe Thunderstorm Warning	LSX	Calhoun	61 min
Jun 26, 12:28 AM CDT	Severe Thunderstorm Warning	LSX	Greene	62 min
Jun 26, 12:55 AM CDT	Severe Thunderstorm Warning	LSX	Jersey	65 min
Jun 26, 1:51 AM CDT	Severe Thunderstorm Warning	LSX	Monroe, Saint Clair	39 min
Jun 26, 2:35 AM CDT	Severe Thunderstorm Warning	LSX	Bond, Clinton	25 min
Jun 26, 2:35 AM CDT	Severe Thunderstorm Warning	LSX	Washington	25 min
Jun 26, 3:00 AM CDT	Severe Thunderstorm Warning	LSX	Clinton, Washington	45 min
Jun 26, 3:09 AM CDT	Severe Thunderstorm Warning	LSX	Fayette, Marion	51 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2000 Every severe thunderstorm warning in 2000

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.