Alert archive / Illinois / Tornado Warnings in 1995

Tornado Warning 22, NWS St. Louis, MO

May 27, 1995Scott County, Illinois

NWS St. Louis, MO issued this tornado warning at May 27, 1995, 6:22 PM CDT for Scott County, Illinois. It was in force for 28 min.

The area

The counties it named.

The facts

Issued
May 27, 1995, 6:22 PM CDT (23:22 UTC)
Expired
May 27, 1995, 6:50 PM CDT
In force
28 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Scott County, IL

The radar

The St Louis radar (KLSX), 107 km from the middle of the area, began a volume at 23:23 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 12:00Z, 11.4 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-pSkew-T log-p diagram, Lincoln, IL at 12:00Z on 1995-05-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Lincoln, IL at 12:00Z on 1995-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 248 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
537 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
248 m²/s²
0-3 km storm-relative helicity
349 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 
TTAA00 KSTL 272325
TORSTL
ILC171-280000-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
622 PM CDT SAT MAY 27 1995
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  700 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN WEST CENTRAL ILLINOIS
 
   ...EASTERN SCOTT COUNTY
 
AT 622 PM...A TORNADO WAS JUST SOUTH OF ALSEY. THE STORM WAS MOVING TO
THE NORTHEAST AT 35 MPH. THE TOWN OF MANCHESTER IS IN THE PATH OF THE
STORM.
 
 
A TORNADO IS ON THE GROUND. IF YOU ARE IN THE PATH...SEEK SHELTER
NOW!

The office that day

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

IssuedProductOfficeCountiesLasted
May 27, 4:41 PM CDTSevere Thunderstorm WarningLSXSaint Clair24 min
May 27, 4:58 PM CDTSevere Thunderstorm WarningLSXClinton, Madison32 min
May 27, 5:36 PM CDTSevere Thunderstorm WarningLSXMarion54 min
May 27, 6:15 PM CDTTornado WarningLSXGreene24 min
May 27, 6:17 PM CDTTornado WarningLSXMontgomery19 min

Nearby

Tornado Warnings in Illinois, 1995Every tornado warning in 1995Tornadoes 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; radar from the NEXRAD Level II archive.