Alert archive / Illinois / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 142, NWS Paducah, KY

June 8, 2009Livingston County, Kentucky; 5 counties in Illinois

NWS Paducah, KY issued this severe thunderstorm warning at Jun 8, 2009, 9:38 PM CDT for Livingston County, Kentucky; 5 counties in Illinois. It was in force for 18 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 8, 2009, 9:38 PM CDT (02:38 UTC)
Expired: Jun 8, 2009, 9:56 PM CDT
In force: 18 min
Issued by: NWS Paducah, KY
Area: Storm-based polygon

Counties Hardin County, IL, Johnson County, IL, Pope County, IL, Saline County, IL, Williamson County, IL, Livingston County, KY

The radar

The Paducah radar (KPAH), 52 km from the middle of the area, began a volume at 02:38 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
Jun 8, 4:33 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 2.6 hours before the alert went out and 293 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: 1379 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 1240 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 80 m²/s²
0-3 km storm-relative helicity: 133 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 3.1

Open this sounding in Storm Lab

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 Paducah, KY wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 8, 2:44 PM CDT, 6 hours 54 minutes earlier.

Area forecast discussion, Jun 8, 2:44 PM CDT, 6 hours 54 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PADUCAH KY
244 PM CDT MON JUN 8 2009

.DISCUSSION...

MAIN ISSUE IS ATTEMPTING TO NAIL DOWN THE MOST LIKELY TIMES FOR
CONVECTION. WEST TO SOUTHWEST FLOW IS EXPECTED THROUGH THIS
WEEK...WHICH MEANS THE FRONT CURRENTLY MOVING THROUGH NORTHERN
ILLINOIS AND MISSOURI WILL LINGER IN THE THE AREA FOR MOST OF THE
WEEK.

MODELS GENERALLY AGREE THAT SCATTERED CONVECTION IS POSSIBLE AT
JUST ABOUT ANY TIME FOR THE NEXT COUPLE OF DAYS. SURFACE COLD
FRONT SHOULD BE ALONG THE OHIO RIVER BY 18Z TUESDAY WHICH SHOULD
SERVE AS A FOCUS FOR CONVECTION TOMORROW.

BY 12Z WEDNESDAY THIS FRONT IS FORECAST TO MOVE BACK NORTH AS THE
MAIN LOW BEGINS TO LIFT OUT FROM THE SOUTHWEST. ENSEMBLES FOCUS ON
MAIN WAVES MOVING THROUGH THE AREA TUESDAY NIGHT INTO
WEDNESDAY...MAINLY OVER THE NORTH. THE SECOND AND MORE IMPRESSIVE
WAVE IS WEDNESDAY NIGHT INTO MID DAY THURSDAY.

THE FRONT SHOULD MOVE SOUTH OF THE AREA BY 06Z
FRIDAY...HOWEVER...THAT MAY NOT BE THE END AS THE NEXT LOW CENTER
DEVELOPS OVER NORTHERN TEXAS. VERY DIFFICULT TO SAY WHERE THE
FRONT WILL BE BY LATE IN THE WEEK. WAVES OF ENERGY MAY BRING
INTERMITTENT CONVECTION BACK INTO THE AREA. MODELS SEEM TO HINT AT
A DECENT WAVE MOVING ACROSS THE REGION ON SATURDAY.

&&

.AVIATION...
SHOWERS HAD DEPARTED ALL TAF SITES BY MID AFTERNOON.
GIVEN AFTERNOON INSTABILITY...WILL KEEP A CHANCE FOR TSRA INTO AT
LEAST THE EARLY EVENING THEREFORE HAVE MAINTAINED TEMPO GROUPS OF
TSRA FOR ALL SITES INTO EARLY EVENING. OTHERWISE...VFR CONDITIONS
WILL RULE FOR THE DURATION OF THIS TAF PERIOD...WITH SOME LIMITED
MVFR DUE TO FOG TOWARD DAYBREAK. BEST CHANCE FOR TSRA ON TUE WILL BE
KCGI AND KPAH BUT WILL BE TOWARD THE END OF THE TAF PERIOD AND
MINIMAL EVEN THEN.

&&

.PAH WATCHES/WARNINGS/ADVISORIES...
KY...NONE.
MO...NONE.
IL...NONE.
IN...NONE.
&&

RLS/PS

Hazardous weather outlook, Jun 8, 4:53 PM CDT, 4 hours 45 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PADUCAH KY
453 PM CDT MON JUN 8 2009

ILZ075>078-080>094-INZ081-082-085>088-KYZ001>022-MOZ076-086-087-
100-107>112-114-091000-
JEFFERSON-WAYNE IL-EDWARDS-WABASH-PERRY IL-FRANKLIN-HAMILTON-
WHITE-JACKSON-WILLIAMSON-SALINE-GALLATIN-UNION IL-JOHNSON-POPE-
HARDIN-ALEXANDER-PULASKI-MASSAC-GIBSON-PIKE-POSEY-VANDERBURGH-
WARRICK-SPENCER-FULTON-HICKMAN-CARLISLE-BALLARD-MCCRACKEN-GRAVES-
LIVINGSTON-MARSHALL-CALLOWAY-CRITTENDEN-LYON-TRIGG-CALDWELL-
UNION KY-WEBSTER-HOPKINS-CHRISTIAN-HENDERSON-DAVIESS-MCLEAN-
MUHLENBERG-TODD-PERRY MO-BOLLINGER-CAPE GIRARDEAU-WAYNE MO-CARTER-
RIPLEY-BUTLER-STODDARD-SCOTT-MISSISSIPPI-NEW MADRID-
453 PM CDT MON JUN 8 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHERN
ILLINOIS...SOUTHWEST INDIANA...WESTERN KENTUCKY AND SOUTHEAST
MISSOURI.

.DAY ONE...TONIGHT

A LINE OF STRONG TO SEVERE THUNDERSTORMS WILL MOVE EAST INTO
SOUTHEAST MISSOURI AND MUCH OF SOUTHERN ILLINOIS THIS EVENING.
LARGE HAIL AND DAMAGING WINDS WILL BE THE PRIMARY CONCERNS...ALONG
WITH LOCALLY HEAVY RAINFALL AND LIGHTNING. THE STORMS SHOULD BE
WEAKENING AS THEY APPROACH THE WABASH AND OHIO RIVERS LATE THIS
EVENING. SO LOCALLY HEAVY RAINFALL AND LIGHTNING WILL BE THE
PRIMARY CONCERNS LATE THIS EVENING AND OVERNIGHT OVER THE EASTERN
HALF OF THE AREA.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

THUNDERSTORMS ARE POSSIBLE TUESDAY THROUGH SUNDAY. IT APPEARS THE
MAIN HAZARDS WILL BE HEAVY RAIN AND LIGHTNING...HOWEVER EVEN
THOUGH NO WIDESPREAD SEVERE WEATHER IS EXPECTED...ON BOTH TUESDAY
AND WEDNESDAY THERE IS A SLIGHT CHANCE THAT A FEW STORMS COULD
BECOME SEVERE.

.SPOTTER INFORMATION STATEMENT...

SPOTTERS ACROSS SOUTHEAST MISSOURI AND SOUTHERN ILLINOIS SHOULD BE
PREPARED FOR ACTIVATION THIS EVENING. SPOTTER ACTIVATION MAY ALSO
BE REQUESTED THROUGHOUT THE AREA TUESDAY AND WEDNESDAY.

DRS

In the hours before

Local storm report, Jun 8, 8:07 PM CDT, 1 hour 31 minutes before

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Local storm report, Jun 8, 8:32 PM CDT, 1 hour 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE PADUCAH KY
832 PM CDT MON JUN 08 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0830 PM     HAIL             ROYALTON                37.88N 89.11W
06/08/2009  M0.75 INCH       FRANKLIN           IL   TRAINED SPOTTER

            PENNY SIZE HAIL REPORTED.

&&

SMITTY

Local storm report, Jun 8, 8:35 PM CDT, 1 hour 3 minutes before

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Local storm report, Jun 8, 8:53 PM CDT, 45 minutes before

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Local storm report, Jun 8, 8:57 PM CDT, 41 minutes before

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Local storm report, Jun 8, 9:11 PM CDT, 27 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 8, 7:16 PM CDT	Severe Thunderstorm Warning	PAH	Perry	44 min
Jun 8, 7:31 PM CDT	Tornado Warning	PAH	Perry	44 min
Jun 8, 7:55 PM CDT	Severe Thunderstorm Warning	PAH	Franklin, Jackson, Williamson	50 min
Jun 8, 8:01 PM CDT	Areal Flood Advisory	PAH	Franklin, Perry	3 hr
Jun 8, 8:05 PM CDT	Tornado Warning	PAH	Franklin, Jackson, Williamson	25 min
Jun 8, 8:37 PM CDT	Severe Thunderstorm Warning	PAH	Jackson, Johnson, Pope, Saline, Union, Williamson	38 min
Jun 8, 10:48 PM CDT	Areal Flood Advisory	PAH	Franklin	3 hr
Jun 8, 7:55 PM CDT	Severe Thunderstorm Warning	PAH	Wayne	50 min
Jun 8, 8:28 PM CDT	Severe Thunderstorm Warning	PAH	Bollinger, Wayne	47 min
Jun 8, 8:48 PM CDT	Areal Flood Advisory	PAH	Wayne	3 hr
Jun 8, 9:08 PM CDT	Severe Thunderstorm Warning	PAH	Bollinger, Butler, Stoddard, Wayne	25 min
Jun 9, 12:26 AM CDT	Areal Flood Advisory	PAH	Butler, Carter, Ripley, Wayne	3 hr
Jun 9, 2:27 AM CDT	Severe Thunderstorm Warning	PAH	Ripley	18 min
Jun 9, 2:44 AM CDT	Severe Thunderstorm Warning	PAH	Butler, Ripley	46 min
Jun 9, 2:48 AM CDT	Severe Thunderstorm Warning	PAH	Carter	27 min
Jun 9, 3:46 AM CDT	Severe Thunderstorm Warning	PAH	Butler	29 min
Jun 9, 3:56 AM CDT	Areal Flood Advisory	PAH	Butler	3 hr
Jun 9, 5:52 PM CDT	Severe Thunderstorm Warning	PAH	Carter	53 min
Jun 9, 5:58 PM CDT	Flash Flood Warning	PAH	Carter	2 hr
Jun 9, 5:59 PM CDT	Tornado Warning	PAH	Carter	46 min
Jun 9, 6:43 PM CDT	Tornado Warning	PAH	Carter	47 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2009 Severe Thunderstorm Warnings in Kentucky, 2009 Every severe thunderstorm warning in 2009

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.