Alert archive / Illinois / Severe Thunderstorm Warnings in 1987

Severe Thunderstorm Warning 5, NWS Paducah, KY

June 12, 1987Franklin County, Illinois

NWS Paducah, KY issued this severe thunderstorm warning at Jun 12, 1987, 8:45 PM CDT for Franklin County, Illinois. It was in force for 60 min.

The area

The counties it named.

The facts

Issued: Jun 12, 1987, 8:45 PM CDT (01:45 UTC)
Expired: Jun 12, 1987, 9:45 PM CDT
In force: 60 min
Issued by: NWS Paducah, KY
Area: Whole counties

County Franklin 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

Salem-Leckrone, IL (KSLO), launched 00:00Z, 1.8 hours before the alert went out and 73 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: 2390 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 1454 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 33 m²/s²
0-3 km storm-relative helicity: 64 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 KPAH 130145
SVRPAH
ILC055-130245-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PADUCAH KY
845 PM CDT FRI JUN 12 1987

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 945 PM CDT FOR THE PEOPLE IN THE FOLLOWING COUNTY OF

SOUTHERN ILLINOIS...FRANKLIN

AT 810 PM CDT WEATHER RADAR INDICATES A SEVERE THUNDERSTORM 2 MILES
NORTH OF SESSER ILL OR 57 MILES NORTH NORTH EAST OF CAPE GIRARDEAU
MO. THIS STORM WAS MOVING TO THE SOUTH SOUTHEAST AT 20 MILES AN HOUR.

REMEMBER..A SEVERE THUNDERSTORM CAN PRODUCE WINDS IN EXCESS OF 60
MILES AN HOUR..LARGE HAIL..DEADLY LIGHTNING..AND HEAVY RAINS THAT
kCAN QUICKLY FLOOD LOW LYING AREAS AND UNDERPASSES.

KEEP TUNED TO YOUR NOAA WEATHER RADIO..AM-FM RADIO..OR TELEVISION
FOR THE LATEST WEATHER INFORMATION.

BORGIA

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, Jun 12, 8:18 PM CDT, 27 minutes before

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Special weather statement, Jun 12, 8:22 PM CDT, 23 minutes before

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Special weather statement, Jun 12, 8:35 PM CDT, 10 minutes before

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The office that day

Everything else NWS Paducah, KY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 12, 9:15 PM CDT	Severe Thunderstorm Warning	PAH	Jackson	90 min
Jun 12, 9:45 PM CDT	Severe Thunderstorm Warning	PAH	Franklin	30 min

Nearby

Severe Thunderstorm Warnings in Illinois, 1987 Every severe thunderstorm warning in 1987

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.