Alert archive / Illinois / Special Weather Statements in 2021

Special Weather Statement, NWS Lincoln, IL

August 23, 2021Schuyler County, Illinois

NWS Lincoln, IL issued this special weather statement at Aug 23, 2021, 12:49 PM CDT for Schuyler County, Illinois. It was in force for 26 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 23, 2021, 12:49 PM CDT (17:49 UTC)
Expired
Aug 23, 2021, 1:15 PM CDT
In force
26 min
Issued by
NWS Lincoln, IL
Hail
0.00 in
Wind
50

County Schuyler County, IL

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 5.8 hours before the alert went out and 169 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 12:00Z on 2021-08-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 105 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, Davenport, at 12:00Z on 2021-08-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 114 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
105 J/kg
Mixed-layer CIN
-342 J/kg
Mixed-layer LCL
1262 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
114 m²/s²
0-3 km storm-relative helicity
108 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

099 
WWUS83 KILX 231749
SPSILX

Special Weather Statement
National Weather Service Lincoln IL
1249 PM CDT Mon Aug 23 2021
 
ILZ040-231815-
Schuyler-
1249 PM CDT Mon Aug 23 2021

...A strong thunderstorm will impact portions of Schuyler County
through 115 PM CDT...

At 1248 PM CDT, Doppler radar was tracking a strong thunderstorm near
Rushville, moving east at 20 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

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

This strong thunderstorm will be near...
  Rushville around 105 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

&&

LAT...LON 4028 9075 4027 9046 4001 9047 4002 9061
      4003 9061 4002 9063 4005 9068 4008 9067
      4008 9070 4009 9071 4010 9070 4011 9071
      4011 9085
TIME...MOT...LOC 1748Z 283DEG 18KT 4014 9068 

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

$$

SB

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 23, 3:51 AM CDTDense Fog AdvisoryILXChampaign, Christian, Clark, Clay, Coles, Crawford and 15 more4 hr
Aug 23, 1:08 PM CDTSevere Thunderstorm WarningILXSchuyler37 min
Aug 23, 1:26 PM CDTSevere Thunderstorm WarningILXCass, Morgan, Schuyler34 min
Aug 23, 1:47 PM CDTSevere Thunderstorm WarningILXCass, Morgan43 min
Aug 23, 2:29 PM CDTSpecial Weather StatementILXSangamon46 min
Aug 23, 2:53 PM CDTHeat AdvisoryILXCass, Champaign, Christian, Clark, Clay, Coles and 29 more5 days

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.