Alert archive / Illinois / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 138, NWS Lincoln, IL

June 27, 2002Jasper County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Jun 27, 2002, 3:20 PM CDT for Jasper County, Illinois. It was in force for 40 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 27, 2002, 3:20 PM CDT (20:20 UTC)
Expired
Jun 27, 2002, 4:00 PM CDT
In force
40 min
Issued by
NWS Lincoln, IL
Area
Counties, with a storm outline in the text

County Jasper County, IL

What was reported inside it

TimeReportWhereRemark
Jun 27, 3:20 PM CDTThunderstorm Wind 50 ESt Marie, ILSeveral large trees were blown over and minor siding damage occurred on a couple of homes.
Jun 27, 3:20 PM CDTHail 1St Marie, IL

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 8.3 hours before the alert went out and 140 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 2002-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1858 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 2002-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 47 square meters per square second.1939Sfc1 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
1858 J/kg
Mixed-layer CIN
-33 J/kg
Mixed-layer LCL
627 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
47 m²/s²
0-3 km storm-relative helicity
90 m²/s²
Significant tornado parameter
0.4
Supercell composite
2.4

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KILX 272020
SVRSPI
ILC079-272100-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
319 PM CDT THU JUN 27 2002

THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  JASPER COUNTY IN SOUTHEAST ILLINOIS

* UNTIL 400 PM CDT

* AT 319 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER STE. MARIE...OR ABOUT 7 MILES SOUTHEAST OF
  NEWTON...MOVING EAST AT 15 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  STE. MARIE
  WILLOW HILL

THIS STORM IS CAPABLE OF PRODUCING WINDS IN EXCESS OF 60 MPH...
DAMAGING HAIL...FREQUENT LIGHTNING...AND VERY HEAVY RAIN. TAKE
SHELTER IN A STURDY BUILDING AND STAY AWAY FROM WINDOWS.

REPORT SEVERE WEATHER OR ANY STORM DAMAGE TO YOUR LOCAL ESDA...OR THE
NEAREST LAW ENFORCEMENT AGENCY...FOR RELAY TO THE NATIONAL WEATHER
SERVICE. STAY TUNED FOR LATER STATEMENTS.

LAT...LON 3899 8822 3886 8818 3886 8795 3905 8796

CHURCHILL

NNNN

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.

NWS Lincoln, IL wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 27, 2:17 PM CDT, 1 hour 3 minutes earlier.

Area forecast discussion, Jun 27, 2:17 PM CDT, 1 hour 3 minutes before
SPI UB 065/087 066/089 068 76000
PIA UB 063/086 065/088 067 76000
DEC UB 064/085 065/088 067 76000
CMI UB 064/085 063/087 065 76000
MTO UB 065/085 064/087 067 76200
LWV UB 067/087 066/088 068 76400=

In the hours before

Special weather statement, Jun 27, 11:00 AM CDT, 4 hours 20 minutes before
ILZ027>031-036>038-040>057-061>063-066>068-071>073-271700-

HAZARDOUS WEATHER OUTLOOK FOR CENTRAL ILLINOIS
NATIONAL WEATHER SERVICE LINCOLN IL
1100 AM CDT THU JUN 27 2002

THERE IS A SLIGHT RISK FOR SEVERE THUNDERSTORMS THIS AFTERNOON AND
EVENING TO THE SOUTHEAST OF A LINE FROM PANA TO MATTOON TO PARIS. AN
APPROACHING COOL FRONT WILL INTERACT WITH A MOIST AND UNSTABLE
AIRMASS ACROSS CENTRAL AND SOUTHEAST ILLINOIS TO PRODUCE SCATTERED
THUNDERSTORMS LATER TODAY. THE MAIN SEVERE WEATHER THREAT WILL BE
HAIL AND STRONG WINDS LATE THIS AFTERNOON AND THIS EVENING. SPOTTER
ACTIVATION MAY BE REQUIRED OVER SOUTHEASTERN ILLINOIS THIS AFTERNOON.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 26, 8:37 PM CDTSevere Thunderstorm WarningILXKnox53 min
Jun 26, 11:58 PM CDTSevere Thunderstorm WarningILXMarshall47 min
Jun 27, 12:15 AM CDTFlash Flood WarningILXMarshall6 hr

Nearby

Severe Thunderstorm Warnings in Illinois, 2002Every severe thunderstorm warning in 2002

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.