Alert archive / Illinois / Special Weather Statements in 2021

Special Weather Statement, NWS Lincoln, IL

August 8, 2021Woodford County, Illinois

NWS Lincoln, IL issued this special weather statement at Aug 8, 2021, 5:02 PM CDT for Woodford County, Illinois. It was in force for 28 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 8, 2021, 5:02 PM CDT (22:02 UTC)
Expired
Aug 8, 2021, 5:30 PM CDT
In force
28 min
Issued by
NWS Lincoln, IL
Hail
0.00 in
Wind
40

County Woodford County, IL

The radar

The Lincoln radar (KILX), 42 km from the middle of the area, began a volume at 22:05 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 68 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 2021-08-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 310 joules per kilogram.LCLLFCEL10008507005003002001001 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 2021-08-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -25 square meters per square second.1939Sfc1 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
310 J/kg
Mixed-layer CIN
-97 J/kg
Mixed-layer LCL
1165 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
-25 m²/s²
0-3 km storm-relative helicity
-3 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

824 
WWUS83 KILX 082202
SPSILX

Special Weather Statement
National Weather Service Lincoln IL
502 PM CDT Sun Aug 8 2021
 
ILZ031-037-038-082230-
Tazewell-Woodford-McLean-
502 PM CDT Sun Aug 8 2021

...A strong thunderstorm will impact portions of southeastern
Woodford, east central Tazewell and northwestern McLean Counties
through 530 PM CDT...

At 502 PM CDT, Doppler radar was tracking a strong thunderstorm over
Minier, or 17 miles southeast of Pekin, moving northeast at 25 mph.

HAZARD...Winds in excess of 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects.

This strong thunderstorm will be near...
  Mackinaw and Stanford around 510 PM CDT.

Other locations in the path of this storm include Danvers, Goodfield
and Carlock.

This includes the following highways...
 Interstate 155 near mile marker 22.
 Interstate 39 between mile markers 3 and 13.
 Interstate 74 between mile markers 111 and 126.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 4036 8933 4048 8948 4077 8912 4063 8890
TIME...MOT...LOC 2202Z 222DEG 21KT 4046 8933 

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

$$

SB

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 8, 2:21 PM CDTSpecial Weather StatementILXMcLean24 min
Aug 8, 3:30 PM CDTSpecial Weather StatementILXMcLean30 min
Aug 8, 4:29 PM CDTSpecial Weather StatementILXMorgan31 min
Aug 8, 4:45 PM CDTAreal Flood AdvisoryILXMcLean2 hr
Aug 8, 4:54 PM CDTSpecial Weather StatementILXMenard36 min
Aug 8, 5:05 PM CDTSevere Thunderstorm WarningILXLogan, Mason, Menard25 min
Aug 8, 5:14 PM CDTSevere Thunderstorm WarningILXMcLean, Tazewell, Woodford46 min
Aug 8, 5:29 PM CDTSpecial Weather StatementILXSangamon31 min
Aug 8, 5:35 PM CDTFlash Flood WarningILXMcLean3 hr
Aug 8, 5:46 PM CDTSpecial Weather StatementILXSangamon29 min

Nearby

Special Weather Statements in Illinois, 2021Every special weather statement in 2021

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.