Alert archive / Illinois / Special Weather Statements in 2012

Special Weather Statement, NWS Lincoln, IL

May 28, 2012Knox County, Stark County, Illinois

NWS Lincoln, IL issued this special weather statement at May 28, 2012, 8:17 PM CDT for Knox County, Stark County, Illinois. It was in force for 58 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
May 28, 2012, 8:17 PM CDT (01:17 UTC)
Expired
May 28, 2012, 9:15 PM CDT
In force
58 min
Issued by
NWS Lincoln, IL

Counties Knox County, IL, Stark County, IL

The radar

The Quad Cities radar (KDVN), 86 km from the middle of the area, began a volume at 01:19 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 nearest sounding before it

Lincoln, IL (KILX), launched 00:00Z, 1.3 hours before the alert went out and 148 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 00:00Z on 2012-05-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 434 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, Lincoln, IL at 00:00Z on 2012-05-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 98 square meters per square second.193958Sfc1 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
434 J/kg
Mixed-layer CIN
-78 J/kg
Mixed-layer LCL
2137 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
98 m²/s²
0-3 km storm-relative helicity
103 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.7

Open this sounding in Storm Lab

The text

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

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at May 28, 6:44 PM CDT, 1 hour 33 minutes earlier.

Area forecast discussion, May 28, 6:44 PM CDT, 1 hour 33 minutes before
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Hazardous weather outlook, May 28, 3:40 PM CDT, 4 hours 37 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LINCOLN IL
340 PM CDT MON MAY 28 2012

ILZ027>031-036>038-040>045-047>053-291100-
CASS-CHAMPAIGN-CHRISTIAN-DE WITT-FULTON-KNOX-LOGAN-MACON-MARSHALL-
MASON-MCLEAN-MENARD-MORGAN-PEORIA-PIATT-SANGAMON-SCHUYLER-SCOTT-
STARK-TAZEWELL-WOODFORD-
340 PM CDT MON MAY 28 2012

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

.DAY ONE...TONIGHT

A COLD FRONT WILL PUSH THROUGH THE AREA TONIGHT. SCATTERED
THUNDERSTORMS ARE EXPECTED TO DEVELOP ALONG/AHEAD OF THE FRONT
THIS AFTERNOON AND EVENING. A FEW OF THE STORMS MAY BECOME
SEVERE...SHOULD THEY DEVELOP...WITH DAMAGING WIND GUSTS OR LARGE HAIL
THE PRIMARY THREATS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED TODAY...PRIMARILY BETWEEN 6 PM
AND 10 PM.

ILZ046-054>057-061>063-066>068-071>073-291100-
CLARK-CLAY-COLES-CRAWFORD-CUMBERLAND-DOUGLAS-EDGAR-EFFINGHAM-
JASPER-LAWRENCE-MOULTRIE-RICHLAND-SHELBY-VERMILION-
340 PM CDT MON MAY 28 2012

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

.DAY ONE...TONIGHT

A COLD FRONT WILL PUSH THROUGH THE AREA TONIGHT. SCATTERED
THUNDERSTORMS ARE EXPECTED TO DEVELOP ALONG/AHEAD OF THE
FRONT TONIGHT. WIDESPREAD SEVERE WEATHER IS NOT EXPECTED AT THIS
TIME...THOUGH GUSTY WINDS AND SMALL HAIL WILL REMAIN POSSIBLE WITH
THESE STORMS IN THE OVERNIGHT HOURS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED TONIGHT...PRIMARILY BETWEEN 8 PM
AND MIDNIGHT.

HJS

In the hours before

Special weather statement, May 28, 8:17 PM CDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
817 PM CDT MON MAY 28 2012

ILZ027>029-290215-
KNOX-PEORIA-STARK-
817 PM CDT MON MAY 28 2012

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL KNOX...NORTHWESTERN
PEORIA AND STARK COUNTIES UNTIL 915 PM CDT...

AT 811 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR KNOXVILLE...OR 7 MILES SOUTHEAST OF
GALESBURG...MOVING EAST AT 30 MPH.

NICKEL SIZE HAIL...AND WINDS AROUND 50 MPH ARE EXPECTED WITH THIS
STORM.

LOCATIONS IMPACTED INCLUDE...
  VICTORIA...
  WILLIAMSFIELD...
  ELMORE...
  LAURA...
  WEST JERSEY...
  BRIMFIELD...

OTHER LOCATIONS AFFECTED INCLUDE...DAHINDA...SNAKE DEN HOLLOW...
MONICA AND DUNCAN.

PEOPLE NEAR THESE LOCATIONS SHOULD MONITOR THE WEATHER SITUATION
CLOSELY. LISTEN FOR POSSIBLE WARNINGS...AND BE PREPARED TO TAKE
APPROPRIATE ACTION SHOULD SEVERE WEATHER THREATEN.

LAT...LON 4121 8965 4084 8965 4074 9036 4100 9043
TIME...MOT...LOC 0117Z 252DEG 27KT 4088 9023

SHIMON

The office that day

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

IssuedProductOfficeCountiesLasted
May 28, 9:38 PM CDTSpecial Weather StatementILXFulton67 min
May 29, 12:16 AM CDTSpecial Weather StatementILXChristian, Shelby59 min
May 29, 12:20 AM CDTSpecial Weather StatementILXChampaign, Vermilion55 min
May 29, 1:15 AM CDTSpecial Weather StatementILXChampaign60 min
May 29, 1:23 AM CDTSpecial Weather StatementILXShelby67 min
May 29, 1:30 AM CDTSevere Thunderstorm WarningILXChristian, Shelby23 min
May 29, 2:14 AM CDTSevere Thunderstorm WarningILXChristian, Shelby45 min
May 29, 2:41 AM CDTSpecial Weather StatementILXVermilion64 min

Nearby

Special Weather Statements in Illinois, 2012Every special weather statement in 2012

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.