Alert archive / Illinois / Special Weather Statements in 2023

Special Weather Statement, NWS Lincoln, IL

January 3, 2023Knox County, Illinois

NWS Lincoln, IL issued this special weather statement at Jan 3, 2023, 11:13 AM CST for Knox County, Illinois. It was in force for 17 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: Jan 3, 2023, 11:13 AM CST (17:13 UTC)
Expired: Jan 3, 2023, 11:30 AM CST
In force: 17 min
Issued by: NWS Lincoln, IL
Hail: 0.75 in
Wind: 50

County Knox County, IL

The radar

The Quad Cities radar (KDVN), 74 km from the middle of the area, began a volume at 17:12 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, 5.2 hours before the alert went out and 161 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 541 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 231 m²/s²
0-3 km storm-relative helicity: 199 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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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 Jan 3, 10:32 AM CST, 41 minutes earlier.

Area forecast discussion, Jan 3, 10:32 AM CST, 41 minutes before

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Hazardous weather outlook, Jan 3, 6:00 AM CST, 5 hours 13 minutes before

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In the hours before

Special weather statement, Jan 3, 11:13 AM CST, 0 minutes before

Special Weather Statement
National Weather Service Lincoln IL
1113 AM CST Tue Jan 3 2023

ILZ027-031730-
Knox-
1113 AM CST Tue Jan 3 2023

...A strong thunderstorm will impact portions of northeastern Knox
County through 1130 AM CST...

At 1112 AM CST, Doppler radar was tracking a strong thunderstorm near
Victoria, or 11 miles east of Galesburg, moving northeast at 35 mph.

HAZARD...Wind gusts up to 50 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

This strong thunderstorm will be near...
  Victoria around 1120 AM CST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4115 8998 4102 8999 4092 9017 4097 9025
      4115 9013
TIME...MOT...LOC 1712Z 219DEG 30KT 4099 9016

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH

37

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 3, 5:37 AM CST	Dense Fog Advisory	ILX	Fulton, Knox, McLean, Marshall, Peoria, Stark and 2 more	7 hr
Jan 3, 11:42 AM CST	Special Weather Statement	ILX	Stark	18 min
Jan 3, 3:46 PM CST	Special Weather Statement	ILX	Macon	14 min
Jan 3, 3:52 PM CST	Tornado Warning Tornado observed	ILX	Logan, Macon, Sangamon	23 min
Jan 3, 4:10 PM CST	Tornado Warning Tornado observed	ILX	DeWitt, Logan, Macon	35 min
Jan 3, 4:21 PM CST	Special Weather Statement	ILX	Christian	24 min
Jan 3, 4:26 PM CST	Tornado Warning	ILX	Christian, Sangamon	34 min
Jan 3, 4:40 PM CST	Tornado Warning Tornado observed	ILX	DeWitt	35 min
Jan 3, 4:41 PM CST	Tornado Warning Tornado observed	ILX	Logan	17 min
Jan 3, 4:49 PM CST	Special Weather Statement	ILX	Christian	26 min
Jan 3, 4:54 PM CST	Tornado Warning	ILX	Christian, Macon	36 min
Jan 3, 5:31 PM CST	Special Weather Statement	ILX	McLean	14 min
Jan 3, 5:37 PM CST	Tornado Warning	ILX	Champaign, McLean	23 min
Jan 3, 5:42 PM CST	Special Weather Statement	ILX	Macon	18 min
Jan 3, 5:54 PM CST	Tornado Warning	ILX	Macon	26 min

Nearby

Special Weather Statements in Illinois, 2023 Every special weather statement in 2023

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.