Alert archive / Illinois / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 16, NWS Lincoln, IL

May 9, 1995Menard County, Morgan County, Sangamon County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at May 9, 1995, 4:39 PM CDT for Menard County, Morgan County, Sangamon County, Illinois. It was in force for 51 min.

The area

The counties it named.

The facts

Issued: May 9, 1995, 4:39 PM CDT (21:39 UTC)
Expired: May 9, 1995, 5:30 PM CDT
In force: 51 min
Issued by: NWS Lincoln, IL
Area: Whole counties

Counties Menard County, IL, Morgan County, IL, Sangamon County, IL

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 9.7 hours before the alert went out and 115 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: 53 J/kg
Mixed-layer CIN: -21 J/kg
Mixed-layer LCL: 637 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 0 m²/s²
0-3 km storm-relative helicity: 49 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSPI 092140
SVRSPI
ILC129-137-167-092230-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD IL
439 PM CDT TUE MAY 9 1995
 
THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  530 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN CENTRAL ILLINOIS
 
   ...SOUTHERN MENARD COUNTY...NORTHEASTERN MORGAN COUNTY
   ...NORTHWESTERN SANGAMON COUNTY
 
AT 438 PM CDT NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM ABOUT 2 MILES EAST OF JACKSONVILLE...28 MILES WEST OF
SPRINGFIELD.
 
THE STORM WAS MOVING TO THE NORTHEAST AT 35 MPH AND WILL MOVE THROUGH
THE FOLLOWING TOWNS...PLEASANT PLAINS...PETERSBURG AND ATHENS.
 
 
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.
$$
 
 
PEARSON

The office that day

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

Issued	Product	Office	Counties	Lasted
May 9, 4:17 PM CDT	Severe Thunderstorm Warning	ILX	Schuyler	58 min
May 9, 4:29 PM CDT	Severe Thunderstorm Warning	ILX	Stark	24 min
May 9, 4:49 PM CDT	Severe Thunderstorm Warning	ILX	Mason	41 min
May 9, 4:55 PM CDT	Tornado Warning	ILX	Sangamon	35 min
May 9, 5:10 PM CDT	Severe Thunderstorm Warning	ILX	Fulton	50 min
May 9, 5:15 PM CDT	Tornado Warning	ILX	Logan, Menard	45 min
May 9, 5:26 PM CDT	Tornado Warning	ILX	Sangamon	34 min
May 9, 5:35 PM CDT	Tornado Warning	ILX	Fulton	40 min
May 9, 5:43 PM CDT	Severe Thunderstorm Warning	ILX	Knox	47 min
May 9, 5:45 PM CDT	Tornado Warning	ILX	Logan	45 min
May 9, 5:51 PM CDT	Tornado Warning	ILX	Tazewell	54 min
May 9, 5:57 PM CDT	Tornado Warning	ILX	DeWitt, Logan	48 min
May 9, 6:08 PM CDT	Tornado Warning	ILX	Peoria	52 min
May 9, 6:33 PM CDT	Severe Thunderstorm Warning	ILX	Christian	42 min
May 9, 6:36 PM CDT	Tornado Warning	ILX	Woodford	69 min
May 9, 6:44 PM CDT	Tornado Warning	ILX	Tazewell	46 min
May 9, 6:45 PM CDT	Tornado Warning	ILX	DeWitt, Logan	45 min
May 9, 6:47 PM CDT	Tornado Warning	ILX	McLean	58 min

Nearby

Severe Thunderstorm Warnings in Illinois, 1995 Every severe thunderstorm warning in 1995

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.