Alert archive / Illinois / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 19, NWS Lincoln, IL

May 12, 1990Edgar County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at May 12, 1990, 7:56 PM CDT for Edgar County, Illinois. It was in force for 34 min.

The area

The counties it named.

The facts

Issued
May 12, 1990, 7:56 PM CDT (00:56 UTC)
Expired
May 12, 1990, 8:30 PM CDT
In force
34 min
Issued by
NWS Lincoln, IL
Area
Whole counties

County Edgar County, IL

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Paducah/Barkley, KY (KPAH), launched 00:00Z, 0.9 hours before the alert went out and 302 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-pSkew-T log-p diagram, Paducah/Barkley, KY at 00:00Z on 1990-05-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 240 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Paducah/Barkley, KY at 00:00Z on 1990-05-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 292 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
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
240 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
642 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
292 m²/s²
0-3 km storm-relative helicity
395 m²/s²
Significant tornado parameter
0.3
Supercell composite
1.9

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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.

In the hours before

Special weather statement, May 12, 7:29 PM CDT, 27 minutes before
ILZ009-010-130022-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
725 PM CDT SAT MAY 12 1989

...SEVERE THUNDERSTORM WATCH 222 CANCELLED FOR CHRISTIAN...MACOUPIN
....SHELBY AND MONTGOMERY COUNTIES...
AT 725 PM CDT THE LINE OF SEVERE THUNDERSTORMS THAT WAS IN CENTRAL
ILLINOIS HAS WEAKENED AND MOVED INTO EASTCENTRAL ILLINOIS. THEREFORE
...THE PORTION OF THE WATCH EFFECTING CHRISTION...MACOUPIN...SHELBY
AND MONTGOMERY COUNTIES HAS BEEN CANCELLED.

THE WATCH REMAINS IN EFFECT FOR OTHER COUNTIES IN EASTCENTRAL ILLINOIS.
THE WATCH IS IN EFFECT FOR MOULTRIE... COLES...CUMBERLAND AND CLARK
COUNTIES AND OTHER COUNTIES TO THE SOUTH. PERSONS IN THOSE COUNTIES
SHOULD REMAIN ON THE AkLERT.

FS

The office that day

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

IssuedProductOfficeCountiesLasted
May 12, 7:56 PM CDTSevere Thunderstorm WarningILXClark, Coles, Cumberland34 min
May 12, 8:19 PM CDTTornado WarningILXClark, Cumberland41 min

Nearby

Severe Thunderstorm Warnings in Illinois, 1990Every severe thunderstorm warning in 1990

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.