Alert archive / Illinois / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 61, NWS Lincoln, IL

June 4, 2010Fulton County, Mason County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Jun 4, 2010, 7:51 PM CDT for Fulton County, Mason County, Illinois. It was in force for 25 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 4, 2010, 7:51 PM CDT (00:51 UTC)
Expired
Jun 4, 2010, 8:16 PM CDT
In force
25 min
Issued by
NWS Lincoln, IL
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Fulton County, IL, Mason County, IL

The radar

The Lincoln radar (KILX), 66 km from the middle of the area, began a volume at 00:54 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.

IssuedProductOfficeLasted
Jun 4, 3:54 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 0.9 hours before the alert went out and 145 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, Davenport, at 00:00Z on 2010-06-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1395 joules per kilogram.LCLLFCEL10008507005003002001001 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, Davenport, at 00:00Z on 2010-06-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 square meters per square second.19395878Sfc1 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
1395 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
1438 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
80 m²/s²
Significant tornado parameter
0.2
Supercell composite
3.0

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 Lincoln, IL wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 4, 6:49 PM CDT, 1 hour 2 minutes earlier.

Area forecast discussion, Jun 4, 6:49 PM CDT, 1 hour 2 minutes before
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Hazardous weather outlook, Jun 4, 2:50 PM CDT, 5 hours 1 minute before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LINCOLN IL
250 PM CDT FRI JUN 4 2010

ILZ027>031-036-037-040-041-047-051200-
CASS-FULTON-KNOX-MARSHALL-MASON-PEORIA-SCHUYLER-STARK-TAZEWELL-
WOODFORD-
250 PM CDT FRI JUN 4 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
ILLINOIS.

.DAY ONE...THIS AFTERNOON AND TONIGHT

THERE IS A SLIGHT CHANCE FOR SEVERE THUNDERSTORMS THROUGH SUNSET...
AS A COLD FRONT MOVES TOWARD CENTRAL ILLINOIS FROM THE NORTHWEST.
THE MAIN THREATS WILL BE DAMAGING WINDS...LARGE HAIL...HEAVY RAIN
AND FREQUENT LIGHTNING. RAINFALL AMOUNTS AROUND ONE INCH WILL BE
POSSIBLE OVER A SHORT PERIOD OF TIME.

THE ILLINOIS RIVER DOWNSTREAM OF PEORIA IS EXPECTED TO REMAIN OR
GET INTO FLOOD FOR THE NEXT SEVERAL DAYS. THE SPOON RIVER AT LONDON
MILLS IS EXPECTED TO FALL BELOW FLOOD STAGE BY EARLY THIS EVENING.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

THE FRONT WILL STALL OUT ACROSS THE AREA ON SATURDAY...SETTING THE
STAGE FOR ANOTHER ROUND OF STRONG TO SEVERE THUNDERSTORMS...
ESPECIALLY SATURDAY MORNING...WITH THE HEAVIEST RAINS OVER 1 INCH
FROM I-74 NORTH. THE MAIN THREATS WILL CONTINUE TO BE DAMAGING
WINDS...LARGE HAIL...FREQUENT LIGHTNING AND VERY HEAVY RAIN.

THERE IS ANOTHER CHANCE OF THUNDERSTORMS TUESDAY THROUGH WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THROUGH 9 PM...AND THEN AGAIN TOWARD
SUNRISE SATURDAY.

ILZ038-042>046-048>057-061>063-066>068-073-051200-
CHAMPAIGN-CHRISTIAN-CLARK-COLES-CRAWFORD-CUMBERLAND-DE WITT-
DOUGLAS-EDGAR-EFFINGHAM-JASPER-LAWRENCE-LOGAN-MACON-MCLEAN-MENARD-
MORGAN-MOULTRIE-PIATT-SANGAMON-SCOTT-SHELBY-VERMILION-
250 PM CDT FRI JUN 4 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
ILLINOIS...EAST CENTRAL ILLINOIS AND SOUTHEAST ILLINOIS.

.DAY ONE...THIS AFTERNOON AND TONIGHT

THERE IS A SLIGHT CHANCE FOR SEVERE THUNDERSTORMS LATER THIS
AFTERNOON AND THIS EVENING...AS A COLD FRONT MOVES TOWARD CENTRAL
ILLINOIS FROM THE NORTHWEST. THE MAIN THREATS WILL BE DAMAGING
WINDS...LARGE HAIL...HEAVY RAIN AND FREQUENT LIGHTNING. RAINFALL
AMOUNTS AROUND ONE INCH WILL BE POSSIBLE OVER A SHORT PERIOD OF TIME.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

THE FRONT WILL STALL OUT ACROSS THE AREA ON SATURDAY...SETTING THE
STAGE FOR ANOTHER ROUND OF STRONG TO SEVERE THUNDERSTORMS...
ESPECIALLY SATURDAY MORNING...WITH THE HEAVIEST RAINS OVER 1 INCH
FROM I-74 NORTH. THE MAIN THREATS WILL CONTINUE TO BE DAMAGING
WINDS...LARGE HAIL...FREQUENT LIGHTNING AND VERY HEAVY RAIN.

THERE IS ANOTHER CHANCE OF THUNDERSTORMS TUESDAY THROUGH WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED BETWEEN 4 PM AND 11 PM.

ILZ071-072-051200-
CLAY-RICHLAND-
250 PM CDT FRI JUN 4 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST
ILLINOIS.

.DAY ONE...THIS AFTERNOON AND TONIGHT

THERE IS A SLIGHT CHANCE OF SEVERE THUNDERSTORMS LATE THIS AFTERNOON
AND THIS EVENING...AS A COLD FRONT MOVES TOWARD CENTRAL ILLINOIS FROM
THE NORTHWEST. THE MAIN THREATS WILL BE DAMAGING WINDS...LARGE
HAIL...HEAVY RAIN AND FREQUENT LIGHTNING. RAINFALL AMOUNTS AROUND
ONE INCH WILL BE POSSIBLE OVER A SHORT PERIOD OF TIME.

THE LITTLE WABASH RIVER AT CLAY CITY IS EXPECTED TO BE IN FLOOD
THROUGH SUNDAY.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

THE FRONT WILL STALL OUT ACROSS THE AREA ON SATURDAY...SETTING THE
STAGE FOR ANOTHER ROUND OF STRONG TO SEVERE THUNDERSTORMS...
ESPECIALLY SATURDAY MORNING. THE MAIN THREATS WILL CONTINUE TO BE
DAMAGING WINDS...LARGE HAIL...FREQUENT LIGHTNING AND VERY HEAVY
RAIN.

THERE IS ANOTHER CHANCE OF THUNDERSTORMS TUESDAY THROUGH WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED BETWEEN 4 PM AND 11 PM.

KH

In the hours before

Local storm report, Jun 4, 5:53 PM CDT, 1 hour 58 minutes before
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Special weather statement, Jun 4, 7:24 PM CDT, 27 minutes before
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Local storm report, Jun 4, 7:30 PM CDT, 21 minutes before
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Special weather statement, Jun 4, 7:42 PM CDT, 9 minutes before
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Local storm report, Jun 4, 7:47 PM CDT, 4 minutes before
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Local storm report, Jun 4, 7:50 PM CDT, 1 minute before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 4, 7:24 PM CDTSpecial Weather StatementILXStark66 min
Jun 4, 7:42 PM CDTSpecial Weather StatementILXFulton, Mason63 min
Jun 4, 9:36 PM CDTRiver Flood WarningILXFulton, Knox66 hr
Jun 5, 12:37 AM CDTRiver Flood WarningILXFulton4 days

Nearby

Severe Thunderstorm Warnings in Illinois, 2010Every severe thunderstorm warning in 2010

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.