Alert archive / Illinois / Severe Thunderstorm Warnings in 2004

Severe Thunderstorm Warning 310, NWS Paducah, KY

October 18, 2004Franklin County, Illinois

NWS Paducah, KY issued this severe thunderstorm warning at Oct 18, 2004, 9:08 PM CDT for Franklin County, Illinois. It was in force for 22 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Oct 18, 2004, 9:08 PM CDT (02:08 UTC)
Expired: Oct 18, 2004, 9:30 PM CDT
In force: 22 min
Issued by: NWS Paducah, KY
Area: Counties, with a storm outline in the text

County Franklin County, IL

The radar

The Evansville,IN radar (KVWX), 108 km from the middle of the area, began a volume at 02:11 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Oct 18, 5:05 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 2.1 hours before the alert went out and 231 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 509 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 264 m²/s²
0-3 km storm-relative helicity: 348 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 
WUUS53 KPAH 190208
SVRPAH
ILC055-190230-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PADUCAH KY
907 PM CDT MON OCT 18 2004

THE NATIONAL WEATHER SERVICE IN PADUCAH KENTUCKY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  FRANKLIN COUNTY IN SOUTHERN ILLINOIS

* UNTIL 930 PM CDT

* AT 907 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 4 MILES WEST OF WHITTINGTON...OR ABOUT 7 MILES
  NORTHWEST OF BENTON...MOVING EAST AT 45 MPH.

* LOCATIONS IMPACTED INCLUDE EWING...SESSER...BENTON PARK...DIANA AND
  ODUM SPUR

A TORNADO WATCH IS ALSO IN EFFECT. SEVERE THUNDERSTORMS CAN PRODUCE 
A TORNADO WITH LITTLE OR NO ADVANCE WARNING. A BASEMENT OR SMALL 
INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY STRUCTURE OFFERS THE 
BEST PROTECTION.

LARGE HAIL IS EXPECTED WITH THIS STORM. TAKE COVER IN A SUBSTANTIAL
SHELTER.

LAT...LON 3812 8908 3807 8909 3803 8872 3812 8871

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 18, 7:09 PM CDT	Flash Flood Warning	PAH	Jackson	96 min
Oct 18, 7:22 PM CDT	Tornado Warning	PAH	Johnson	53 min
Oct 18, 7:41 PM CDT	Flash Flood Warning	PAH	Pope, Saline	3 hr
Oct 18, 7:41 PM CDT	Tornado Warning	PAH	Pope	64 min
Oct 18, 7:44 PM CDT	Severe Thunderstorm Warning	PAH	Saline	61 min
Oct 18, 8:13 PM CDT	Tornado Warning	PAH	Hardin	62 min
Oct 18, 9:14 PM CDT	Flash Flood Warning	PAH	Franklin	2 hr

Nearby

Severe Thunderstorm Warnings in Illinois, 2004 Every severe thunderstorm warning in 2004

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.