Alert archive / Illinois / Special Weather Statements in 2012

Special Weather Statement, NWS Lincoln, IL

August 2, 2012Christian County, Shelby County, Illinois

NWS Lincoln, IL issued this special weather statement at Aug 2, 2012, 4:57 PM CDT for Christian County, Shelby County, Illinois. It was in force for 63 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 2, 2012, 4:57 PM CDT (21:57 UTC)
Expired
Aug 2, 2012, 6:00 PM CDT
In force
63 min
Issued by
NWS Lincoln, IL

Counties Christian County, IL, Shelby County, IL

The radar

The Lincoln radar (KILX), 80 km from the middle of the area, began a volume at 21:56 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, 10.0 hours before the alert went out and 96 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 2012-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2012-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 40 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2087 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
40 m²/s²
0-3 km storm-relative helicity
12 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

848 
WWUS83 KILX 022157
SPSILX

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
457 PM CDT THU AUG 2 2012

ILZ051-052-061-022300-
CHRISTIAN-SANGAMON-SHELBY-
457 PM CDT THU AUG 2 2012

...SIGNIFICANT WEATHER ADVISORY FOR CHRISTIAN...SHELBY AND
SOUTHEASTERN SANGAMON COUNTIES UNTIL 600 PM CDT...

AT 450 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM KINCAID TO 6 MILES
NORTH OF NOKOMIS TO 6 MILES WEST OF COWDEN...MOVING NORTHEAST AT 20 
MPH. SOME BRANCHES WERE BLOWN DOWN IN OCONEE IN SOUTHWEST SHELBY
COUNTY AROUND 450 PM. 

PENNY SIZE HAIL...AND WINDS OF 50 TO 55 MPH ARE EXPECTED WITH THESE 
STORMS.

LOCATIONS IMPACTED INCLUDE...
  PANA...
  KINCAID...
  LAKEWOOD...
  TOWER HILL...
  TAYLORVILLE...
  EDINBURG...

OTHER LOCATIONS AFFECTED INCLUDE...PALMER...OCONEE...HERRICK...
SICILY...VANDERVILLE AND ROSAMOND.

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 3925 8915 3935 8915 3935 8936 3950 8954
      3952 8954 3952 8956 3956 8961 3986 8934
      3965 8915 3947 8860 3921 8887 3921 8905
TIME...MOT...LOC 2156Z 213DEG 17KT 3957 8946 3941 8929
          3928 8896

$$

HUETTL

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 2, 2:48 PM CDTSpecial Weather StatementILXChristian57 min
Aug 2, 6:28 PM CDTSpecial Weather StatementILXCumberland, Effingham62 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.