Alert archive / Illinois / Special Weather Statements in 2012

Special Weather Statement, NWS Lincoln, IL

August 16, 2012Christian County, Sangamon County, Illinois

NWS Lincoln, IL issued this special weather statement at Aug 16, 2012, 2:15 PM CDT for Christian County, Sangamon County, Illinois. It was in force for 60 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: Aug 16, 2012, 2:15 PM CDT (19:15 UTC)
Expired: Aug 16, 2012, 3:15 PM CDT
In force: 60 min
Issued by: NWS Lincoln, IL

Counties Christian County, IL, Sangamon County, IL

The radar

The Lincoln radar (KILX), 69 km from the middle of the area, began a volume at 19:17 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 12:00Z, 7.3 hours before the alert went out and 112 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: 817 J/kg
Mixed-layer CIN: -262 J/kg
Mixed-layer LCL: 1559 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 69 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.0

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 Aug 16, 12:34 PM CDT, 1 hour 41 minutes earlier.

Area forecast discussion, Aug 16, 12:34 PM CDT, 1 hour 41 minutes before

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Hazardous weather outlook, Aug 16, 12:08 PM CDT, 2 hours 7 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LINCOLN IL
1208 PM CDT THU AUG 16 2012

ILZ027>031-036-037-040-041-171100-
FULTON-KNOX-MARSHALL-MASON-PEORIA-SCHUYLER-STARK-TAZEWELL-
WOODFORD-
1208 PM CDT THU AUG 16 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL
ILLINOIS.

.DAY ONE...THIS AFTERNOON AND TONIGHT

SCATTERED THUNDERSTORMS WILL CONTINUE INTO MID AFTERNOON...AS A
COLD FRONT PUSHES THROUGH THE AREA. A FEW OF THE STORMS WILL BE
CAPABLE OF PRODUCING GUSTY WINDS AND HAIL...ESPECIALLY EARLY THIS
AFTERNOON AND EAST OF THE ILLINOIS RIVER.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED EAST OF THE ILLINOIS RIVER...
MAINLY THROUGH 3 PM.

ILZ038-042>057-061-171100-
CASS-CHAMPAIGN-CHRISTIAN-COLES-DE WITT-DOUGLAS-EDGAR-LOGAN-MACON-
MCLEAN-MENARD-MORGAN-MOULTRIE-PIATT-SANGAMON-SCOTT-SHELBY-
VERMILION-
1208 PM CDT THU AUG 16 2012

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

SCATTERED THUNDERSTORMS WILL CONTINUE TO BE A THREAT ACROSS THE
AREA THIS AFTERNOON...AHEAD OF A COLD FRONT. SOME OF THE STORMS
COULD BECOME SEVERE. DAMAGING WIND GUSTS IN EXCESS OF 60 MPH...AND
LARGE HAIL GREATER THAN QUARTER SIZED...WILL BE THE PRIMARY
THREATS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED TODAY...MAINLY THROUGH 6 PM.

ILZ062-063-066>068-071>073-171100-
CLARK-CLAY-CRAWFORD-CUMBERLAND-EFFINGHAM-JASPER-LAWRENCE-RICHLAND-
1208 PM CDT THU AUG 16 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST ILLINOIS.

.DAY ONE...THIS AFTERNOON AND TONIGHT

AN APPROACHING COLD FRONT WILL TRIGGER THUNDERSTORMS ACROSS THE
AREA THIS AFTERNOON...CONTINUING INTO THE FIRST PART OF THE
EVENING. SOME OF THE STORMS COULD BECOME SEVERE. DAMAGING WIND
GUSTS IN EXCESS OF 60 MPH...AND LARGE HAIL GREATER THAN QUARTER
SIZED...WILL BE THE PRIMARY THREATS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED LATER TODAY...MAINLY BETWEEN
2 PM AND 9 PM.

GEELHART

In the hours before

Special weather statement, Aug 16, 8:26 AM CDT, 5 hours 49 minutes before

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Local storm report, Aug 16, 8:29 AM CDT, 5 hours 46 minutes before

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Special weather statement, Aug 16, 9:27 AM CDT, 4 hours 48 minutes before

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Local storm report, Aug 16, 1:02 PM CDT, 1 hour 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LINCOLN IL
102 PM CDT THU AUG 16 2012

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

1220 AM     TSTM WND DMG     1 E NORMAL              40.52N 88.98W
08/16/2012                   MCLEAN             IL   MESONET

            THREE INCH DIAMETER BRANCH OF HEALTHY APPLE TREE SNAPPED
            OFF NEAR BLAIR DRIVE AND DILLON DRIVE...FROM SWOP.

&&

LAUFENBERG

Special weather statement, Aug 16, 2:15 PM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
215 PM CDT THU AUG 16 2012

ILZ044-049>054-061-162015-
CHRISTIAN-MACON-MORGAN-MOULTRIE-PIATT-SANGAMON-SCOTT-SHELBY-
215 PM CDT THU AUG 16 2012

...SIGNIFICANT WEATHER ADVISORY FOR CHRISTIAN...NORTHWESTERN
MOULTRIE...NORTHWESTERN SHELBY...SANGAMON...SOUTHEASTERN MORGAN...
SOUTHEASTERN SCOTT...SOUTHERN MACON AND SOUTHWESTERN PIATT COUNTIES
UNTIL 315 PM CDT...

AT 213 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM SHERMAN TO
MURRAYVILLE...MOVING EAST AT 40 MPH.

PENNY SIZE HAIL...AND WINDS AROUND 50 MPH ARE EXPECTED WITH THESE
STORMS.

LOCATIONS IMPACTED INCLUDE...
  FRANKLIN...
  RIVERTON...
  SPRINGFIELD...
  LOAMI...
  WAVERLY...
  ROCHESTER...

OTHER LOCATIONS AFFECTED INCLUDE...CAPITAL AIRPORT...BERLIN...
NORTONVILLE...GRANDVIEW...SPAULDING AND CURRAN.

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 3954 9033 3992 8967 3978 8861 3944 8938
      3945 8954 3952 8954 3951 9011
TIME...MOT...LOC 1915Z 279DEG 36KT 3986 8964 3960 9021

GOETSCH

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 16, 8:26 AM CDT	Special Weather Statement	ILX	McLean, Tazewell, Woodford	64 min
Aug 16, 9:27 AM CDT	Special Weather Statement	ILX	DeWitt, Logan, McLean	63 min
Aug 16, 11:38 AM CDT	Severe Thunderstorm Warning	ILX	McLean, Woodford	67 min
Aug 16, 11:49 AM CDT	Severe Thunderstorm Warning	ILX	McLean, Tazewell, Woodford	56 min
Aug 16, 1:39 PM CDT	Severe Thunderstorm Warning	ILX	McLean, Tazewell	42 min
Aug 16, 2:06 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, Douglas, Edgar, Vermilion	54 min
Aug 16, 2:58 PM CDT	Severe Thunderstorm Warning	ILX	Christian	50 min
Aug 16, 3:15 PM CDT	Severe Thunderstorm Warning	ILX	Christian, Coles, Cumberland, Douglas, Macon, Moultrie and 2 more	60 min
Aug 16, 3:29 PM CDT	Severe Thunderstorm Warning	ILX	Champaign, Edgar, Vermilion	61 min
Aug 16, 3:41 PM CDT	Tornado Warning	ILX	Coles, Cumberland, Moultrie, Shelby	37 min
Aug 16, 3:45 PM CDT	Severe Thunderstorm Warning	ILX	Cumberland, Effingham, Jasper, Shelby	60 min
Aug 16, 3:57 PM CDT	Severe Thunderstorm Warning	ILX	Clark, Coles, Cumberland, Douglas, Edgar	63 min
Aug 16, 3:59 PM CDT	Tornado Warning	ILX	Clay, Cumberland, Effingham, Jasper	46 min
Aug 16, 4:01 PM CDT	Tornado Warning	ILX	Clark, Coles, Cumberland, Edgar	35 min
Aug 16, 4:29 PM CDT	Severe Thunderstorm Warning	ILX	Clay, Crawford, Jasper, Lawrence, Richland	61 min
Aug 16, 4:43 PM CDT	Severe Thunderstorm Warning	ILX	Cumberland, Jasper	17 min

Nearby

Special Weather Statements in Illinois, 2012 Every 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.