Alert archive / Illinois / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 30, NWS Lincoln, IL

April 18, 1996Coles County, Douglas County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Apr 18, 1996, 10:20 PM CDT for Coles County, Douglas County, Illinois. It was in force for 40 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Apr 18, 1996, 10:20 PM CDT (03:20 UTC)
Expired: Apr 18, 1996, 11:00 PM CDT
In force: 40 min
Issued by: NWS Lincoln, IL
Area: Whole counties

Counties Coles County, IL, Douglas County, IL

The radar

The Lincoln radar (KILX), 111 km from the middle of the area, began a volume at 03:22 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, 3.3 hours before the alert went out and 65 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: 637 J/kg
Mixed-layer CIN: -124 J/kg
Mixed-layer LCL: 1032 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 124 m²/s²
0-3 km storm-relative helicity: 156 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSPI 190319
SVRSPI
ILC029-041-190400-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
1020 PM CDT THU APR 18 1996
 
THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1100 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN EAST CENTRAL ILLINOIS
 
   ...COLES COUNTY...DOUGLAS COUNTY
 
AT 1015PM CDT...DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS
EXTENDED FROM VILLA GROVE THROUGH ARCOLA TO ALLENVILLE. THIS LINE OF
STORMS IS MOVING TO THE EAST SOUTHEAST AT 40 MPH. TOWNS IN THE PATH OF
THESE STORMS ARE NEWMAN...HINDSBORO...HUMBOLDT...MATTOON AND CHARLESTON.
 
TAKE SHELTER IN A SUBSTANTIAL BUILDING. STAY AWAY FROM WINDOWS.
LIGHTNING KILLS...SO STAY AWAY FROM TELEPHONES. REMEMBER...A
SEVERE THUNDERSTORM MAY PRODUCE A TORNADO AT ANY TIME.
 
$$
 
AUTEN

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 Lincoln, IL wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 18, 2:08 PM CDT, 8 hours 12 minutes earlier.

Area forecast discussion, Apr 18, 2:08 PM CDT, 8 hours 12 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LINCOLN IL
205 PM CDT THU APR 18 1996

AS OF 1855Z...88D INDICATED NO RW OR TRW ACROSS CWA...MOST OF PCPN WAS
IN IA.  AS FOR TEMPS...ONLY IN THE UPPER 60S TO LOW 70S SO FAR WITH
DEWPTS IN THE LOW TO MID 50S.  STILL HAVE A 4 DEGREE CAP ACROSS CWA
SO DONT EXPECT TRW DEVELOPMENT TILL AFTER 4 PM.

12Z MODEL RUNS SHOW AREA OF HIGHEST INSTABILITY OVR NWRN IL BY 00Z...
THO CAN STILL EXPECT GOOD CHANCE OF SVR WX ACROSS C IL...JUST A MATTER
OF THE CAP BEING BROKEN.

ONCE CONVECTION MOVES OUT...CAN EXPECT OVERNIGHT LOWS IN THE UPPER 40S TO
LOW 50S.  ANOTHER CHANCE FOR RW/TRW TOMORROW W/ NEXT S/W MOVG THRU LATE
SAT.
PIA  50/69  33
SPI  51/70  33
DE,C  50/69  33
CMI  49/68  33

BYRD

In the hours before

Local storm report, Apr 18, 9:03 PM CDT, 1 hour 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
903 PM CDT THU APR 18 1996

TIME (CDT) ...CITY/LOCATION...       ST   ...EVENT/REMARKS...
DATE       ...COUNTY LOCATION...

0608 PM    CAMDEN                    IL   1.75 INCH HAIL
04/18/96   SCHUYLER                       ESDA

0615 PM    LITTLETON                 IL   1.75 INCH HAIL
04/18/96   SCHULYER                       ESDA

0635 PM    JACKSONVILLE              IL   1.00 INCH HAIL
04/18/96   MORGAN                         ESDA

0650 PM    VIRGINIA                  IL   1.75 INCH HAIL
04/18/96   CASS                           ESDA

0650 PM    ELLISVILLE                IL   ONE POWER POLE WAS BENT
04/18/96   FULTON                         OVER.
                                          ESDA

0656 PM    IPAVA                     IL   1.75 INCH HAIL
04/18/96   FULTO                          ESDA

0701 PM    JACKSONVILLE              IL   1.50 INCH HAIL
04/18/96   MORGAN                         ESDA

0709 PM    LEWISTON                  IL   1.75 INCH HAIL
04/18/96   FULTON                         ESDA

0740 PM    1 N SPRINGFIELD           IL   1.75 INCH HAIL
04/18/96   SANGAMON                       ESDA

0746 PM    DELAVAN                   IL   1.75 INCH HAIL
04/18/96   TAZEWELL                       HAIL COVERED GROUND
                                          ESDA

0823 PM    NIANTIC                   IL   1.00 INCH HAIL
04/18/96   MACON                          ESDA

0834 PM    NIANTIC                   IL   1.75 INCH HAIL
04/18/96   MACON                          ESDA

0755 PM    5 S PEKIN                 IL   0.75 INCH HAIL
04/18/96   TAZEWELL                       WEATHER SERVICE EMPLOYEE

0848 PM    4 S NIANTIC               IL   2.25 INCH HAIL
04/18/96   MACON                          ESDA

BYRD

The office that day

Everything else NWS Lincoln, IL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 18, 7:07 PM CDT	Severe Thunderstorm Warning	ILX	Morgan	23 min
Apr 18, 7:15 PM CDT	Severe Thunderstorm Warning	ILX	Fulton	30 min
Apr 18, 7:24 PM CDT	Severe Thunderstorm Warning	ILX	Sangamon	66 min
Apr 18, 7:44 PM CDT	Severe Thunderstorm Warning	ILX	Tazewell	46 min
Apr 18, 8:27 PM CDT	Severe Thunderstorm Warning	ILX	Sangamon	33 min
Apr 18, 8:32 PM CDT	Severe Thunderstorm Warning	ILX	Macon	58 min
Apr 18, 8:55 PM CDT	Severe Thunderstorm Warning	ILX	DeWitt	50 min
Apr 18, 9:03 PM CDT	Tornado Warning	ILX	Macon	27 min
Apr 18, 9:22 PM CDT	Tornado Warning	ILX	Moultrie, Piatt	38 min
Apr 18, 9:46 PM CDT	Tornado Warning	ILX	Champaign, Douglas	29 min
Apr 19, 3:55 PM CDT	Severe Thunderstorm Warning	ILX	Moultrie, Shelby	35 min
Apr 19, 4:00 PM CDT	Severe Thunderstorm Warning	ILX	Coles, Douglas	45 min
Apr 19, 4:14 PM CDT	Tornado Warning	ILX	Coles, Douglas	31 min
Apr 19, 4:31 PM CDT	Severe Thunderstorm Warning	ILX	Peoria, Woodford	49 min
Apr 19, 4:44 PM CDT	Tornado Warning	ILX	Coles, Douglas, Edgar	46 min
Apr 19, 4:51 PM CDT	Tornado Warning	ILX	Peoria, Woodford	49 min
Apr 19, 4:52 PM CDT	Severe Thunderstorm Warning	ILX	McLean	38 min
Apr 19, 5:03 PM CDT	Severe Thunderstorm Warning	ILX	Fulton, Schuyler	57 min
Apr 19, 5:06 PM CDT	Severe Thunderstorm Warning	ILX	Knox	64 min
Apr 19, 5:36 PM CDT	Tornado Warning	ILX	Morgan, Scott	39 min
Apr 19, 5:57 PM CDT	Tornado Warning	ILX	Fulton, Mason	48 min
Apr 19, 6:07 PM CDT	Tornado Warning	ILX	Marshall, Peoria, Stark	53 min
Apr 19, 6:14 PM CDT	Tornado Warning	ILX	Morgan, Sangamon	46 min
Apr 19, 6:33 PM CDT	Tornado Warning	ILX	Logan, Tazewell	42 min
Apr 19, 6:59 PM CDT	Tornado Warning	ILX	Sangamon	31 min

Nearby

Severe Thunderstorm Warnings in Illinois, 1996 Every severe thunderstorm warning in 1996

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.