Alert archive / Illinois / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 143, NWS St. Louis, MO

May 12, 2000Bond County, Madison County, Illinois

NWS St. Louis, MO issued this severe thunderstorm warning at May 12, 2000, 6:01 PM CDT for Bond County, Madison County, Illinois. It was in force for 64 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: May 12, 2000, 6:01 PM CDT (23:01 UTC)
Expired: May 12, 2000, 7:05 PM CDT
In force: 64 min
Issued by: NWS St. Louis, MO
Area: Whole counties

Counties Bond County, IL, Madison County, IL

What was reported inside it

Time	Report	Where	Remark
May 12, 6:25 PM CDT	Tornado F1	Old Ripley, IL	A tornado left a path of damage for 9 miles across east Bond County. The damage first started 2.5 miles north northeast of Old Ripley where several large trees were damaged. The tornado traveled east alone County Road 1300 destroying one barn and 2 machine she
May 12, 6:47 PM CDT	Tornado F2	Greenville, IL	A second tornado formed about 100 yards southeast of the initial tornado in Bond County and traveled east for about 1.5 miles. The tornado traveled through a heavily wooded area destroying hundreds of large trees.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

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

Issued	Product	Office	Lasted
May 12, 4:30 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 11.0 hours before the alert went out and 170 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: 2035 J/kg
Mixed-layer CIN: -305 J/kg
Mixed-layer LCL: 1023 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 283 m²/s²
0-3 km storm-relative helicity: 282 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.3

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KLSX 122302
SVRSTL
ILC005-119-130005-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
601 PM CDT FRI MAY 12 2000

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BOND COUNTY IN SOUTH CENTRAL ILLINOIS
  NORTHEASTERN MADISON COUNTY ILLINOIS IN SOUTHWESTERN ILLINOIS

* UNTIL 705 PM CDT

* AT 559 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM NEAR NEW DOUGLAS... MOVING EAST NORTHEAST AT
  35 MPH.

* LOCATIONS THAT WILL BE AFFECTED...
  SOLENTO
  RENO
  GOVERNOR BOND LAKE
  GREENVILLE



THE PRIMARY SEVERE WEATHER THREAT IS DAMAGING HAIL.c LARGE HAIL CAN
CAUSE EXTENSIVE PROPERTY DAMAGE AN SERIOUS INJURY TO PEOPLE CAUGHT
OUTDOORS. MOVE INSIDE A STURDY BUILDING IMMEDIATELY.



RP/ST/GKS

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS St. Louis, MO wrote its last area forecast discussion before this severe thunderstorm warning went out at May 12, 1:30 PM CDT, 4 hours 31 minutes earlier.

Area forecast discussion, May 12, 1:30 PM CDT, 4 hours 31 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ST LOUIS MO
130 PM CDT FRI MAY 12 2000

MAIN PROBS OF THE DAY ARE...TSTMS...TEMPS...WND AND CLOUDS...AND
WHEN SELS WILL ISSUED A WATCH.

LI'S NEAR -8 FRM E-CNTRL INTO S-CNTRL...SE MO AND W-CNTRL AND
SW IL. LSX 88D SHWD A LINE FORMING FRM NR UIN TO JUST N OF COU.
SEL MESO DISCUSSION FCSTS A TOR WTCH IN CNTRL IL...MAYBE IN PTNS
ERN MO.  AT 1 PM...SFC FNT NEAR COU AND JUST S OF UIN.  MODERATE
RISK OVER PTNS OF W-CNTRL AND MOST OF SRN IL FOR THIS AFTERNOON AND
TONGT. ALL THIS SPELL THAT SVR WX COULD DVLP ANY TIME IN PORTION OF
E-CNTRL MO AND W-CNTRL IL.

MESO ETA SHOWD GOOD PCPN PTN FRM 00Z-06Z IN PTNS OF ERN AND SRN
MO...RN WL COME TO AN END BY MIDNIGHT IN ERN MO...SCT SHWRS AND
TSTMS WL CONTINUE IN SE MO THRU ERLY MORNING HOURS.

HIGH PRS WL BRING A DRY AND COOLER WEATHER FOR SAT AND SUN.
FWCS TEMPS LOOKS OK.  NEXT CHC FOR TSTMS WL ON WED...WHEN- AND WARM
FRNT WL CRS THE AREA WTH MORE HUMID AND UNSTABLE AMS.

.STL...NONE.

The office that day

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

Issued	Product	Office	Counties	Lasted
May 12, 3:41 PM CDT	Severe Thunderstorm Warning	LSX	Calhoun, Greene	49 min
May 12, 4:09 PM CDT	Severe Thunderstorm Warning	LSX	Jersey	51 min
May 12, 4:30 PM CDT	Severe Thunderstorm Warning	LSX	Greene	50 min
May 12, 4:42 PM CDT	Severe Thunderstorm Warning	LSX	Macoupin	48 min
May 12, 5:02 PM CDT	Severe Thunderstorm Warning	LSX	Jersey, Macoupin	48 min
May 12, 5:42 PM CDT	Severe Thunderstorm Warning	LSX	Montgomery	58 min
May 12, 6:05 PM CDT	Tornado Warning	LSX	Bond, Madison	50 min
May 12, 6:49 PM CDT	Tornado Warning	LSX	Fayette	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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.