Alert archive / Illinois / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 51, NWS Lincoln, IL

April 5, 20235 counties in Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Apr 5, 2023, 9:31 AM CDT for 5 counties in Illinois. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Apr 5, 2023, 9:31 AM CDT (14:31 UTC)
Expired: Apr 5, 2023, 10:15 AM CDT
In force: 44 min
Issued by: NWS Lincoln, IL
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Clark County, IL, Coles County, IL, Cumberland County, IL, Edgar County, IL, Shelby County, IL

The radar

The Lincoln radar (KILX), 128 km from the middle of the area, began a volume at 14:33 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 5, 3:57 AM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 2.5 hours before the alert went out and 87 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: 1081 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 1055 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 393 m²/s²
0-3 km storm-relative helicity: 417 m²/s²
Significant tornado parameter: 2.9
Supercell composite: 7.1

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Apr 5, 7:14 AM CDT, 2 hours 17 minutes earlier.

Area forecast discussion, Apr 5, 7:14 AM CDT, 2 hours 17 minutes before

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Hazardous weather outlook, Apr 5, 4:25 AM CDT, 5 hours 6 minutes before

Hazardous Weather Outlook
National Weather Service Lincoln IL
425 AM CDT Wed Apr 5 2023

ILZ027>031-036-037-061100-
Knox-Stark-Peoria-Marshall-Woodford-Fulton-Tazewell-
425 AM CDT Wed Apr 5 2023

This Hazardous Weather Outlook is for central Illinois and west
central Illinois.

.DAY ONE...Today and tonight.

Strong to severe thunderstorms are possible through mid morning,
with damaging winds the main threat, though large hail and isolated
tornadoes also risks. Cloud to ground lightning will also be a
hazard.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely be needed through 10 AM this morning.

ILZ038-040>053-061100-
McLean-Schuyler-Mason-Logan-De Witt-Piatt-Champaign-Vermilion-Cass-
Menard-Scott-Morgan-Sangamon-Christian-Macon-
425 AM CDT Wed Apr 5 2023

This Hazardous Weather Outlook is for central Illinois, east
central Illinois and west central Illinois.

.DAY ONE...Today and tonight.

Strong to severe thunderstorms are possible this morning, with
damaging winds, large hail and isolated tornadoes possible. Strong to
potentially severe thunderstorms could linger in east central IL
early this afternoon. Cloud to ground lightning will also be a
hazard. In addition to thunderstorms, strong southerly winds will
gust 40 to 50 mph this morning, and turn westerly this afternoon.

Minor flooding will continue along the lower IL river from Havana
downstream to Beardstown through at least the middle of next week.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely be needed this morning.

ILZ054>057-061>063-066>068-071>073-061100-
Moultrie-Douglas-Coles-Edgar-Shelby-Cumberland-Clark-Effingham-
Jasper-Crawford-Clay-Richland-Lawrence-
425 AM CDT Wed Apr 5 2023

This Hazardous Weather Outlook is for central Illinois, east
central Illinois and southeast Illinois.

.DAY ONE...Today and tonight.

Some strong to potentially severe thunderstorms are expected this
morning into early afternoon. Damaging winds, very large hail and
tornadoes are possible. Cloud to ground lightning will also be a
hazard. In addition to thunderstorms, strong southerly winds will
gust 40 to 50 mph this morning and turn westerly this afternoon.

Minor flooding will continue along the Wabash river upstream of
Vincennes into this Easter weekend.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will be needed from this morning into early
afternoon.

07

In the hours before

Special weather statement, Apr 5, 4:37 AM CDT, 4 hours 54 minutes before

Special Weather Statement
National Weather Service Lincoln IL
437 AM CDT Wed Apr 5 2023

ILZ027-051000-
Knox-
437 AM CDT Wed Apr 5 2023

...A strong thunderstorm will impact portions of Knox County through
500 AM CDT...

At 437 AM CDT, Doppler radar was tracking a strong thunderstorm over
Monmouth, moving northeast at 55 mph.

HAZARD...Winds in excess of 40 mph and half inch 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...
  Galesburg around 455 AM CDT.

Other locations in the path of this storm include Wataga, Oneida,
Altona and Rio.

This includes Interstate 74 between mile markers 34 and 67.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 1100 AM CDT for
west central Illinois.

&&

LAT...LON 4115 9013 4084 8999 4075 9044 4115 9044
TIME...MOT...LOC 0937Z 240DEG 49KT 4090 9065

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

Auten

Special weather statement, Apr 5, 6:13 AM CDT, 3 hours 18 minutes before

Special Weather Statement
National Weather Service Lincoln IL
613 AM CDT Wed Apr 5 2023

ILZ048-050-051-051145-
Sangamon-Morgan-Menard-
613 AM CDT Wed Apr 5 2023

...Strong thunderstorms will impact portions of southwestern Menard,
western Sangamon, southeastern Cass and eastern Morgan Counties
through 645 AM CDT...

At 612 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from Tallula to 6 miles southwest of Franklin.
Movement was northeast at 45 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.

Strong thunderstorms will be near...
  Pleasant Plains and Tallula around 620 AM CDT.
  Athens around 625 AM CDT.

Other locations in the path of these storms include New Berlin,
Loami, Auburn, Williamsville, Springfield and Chatham.

This includes the following highways...
 Interstate 55 near mile marker 92, and between mile markers 103 and
105.
 Interstate 72 between mile markers 73 and 98.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 1100 AM CDT for
central and west central Illinois.

&&

LAT...LON 3987 9006 3988 8999 3995 8999 3996 8957
      3952 8971 3952 9021
TIME...MOT...LOC 1112Z 244DEG 40KT 3993 8995 3956 9013

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

Deubelbeiss

Special weather statement, Apr 5, 6:42 AM CDT, 2 hours 49 minutes before

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Special weather statement, Apr 5, 6:46 AM CDT, 2 hours 45 minutes before

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Local storm report, Apr 5, 7:02 AM CDT, 2 hours 29 minutes before

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Special weather statement, Apr 5, 9:14 AM CDT, 17 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 4, 7:19 PM CDT	Tornado Warning Tornado observed	ILX	Fulton, Mason	26 min
Apr 4, 7:22 PM CDT	Severe Thunderstorm Warning Considerable damage threat	ILX	Fulton, Knox, Mason, Peoria, Tazewell	38 min
Apr 4, 7:33 PM CDT	Tornado Warning Tornado observedConsiderable damage threat	ILX	Fulton, Peoria, Tazewell	27 min
Apr 4, 7:43 PM CDT	Tornado Warning	ILX	Fulton, Mason, Peoria, Tazewell	32 min
Apr 4, 7:57 PM CDT	Severe Thunderstorm Warning Considerable damage threat	ILX	Fulton, Peoria, Tazewell, Woodford	36 min
Apr 4, 8:07 PM CDT	Tornado Warning	ILX	Peoria, Tazewell, Woodford	9 min
Apr 5, 4:37 AM CDT	Special Weather Statement	ILX	Knox	23 min
Apr 5, 5:35 AM CDT	Severe Thunderstorm Warning	ILX	Cass, Morgan, Scott	40 min
Apr 5, 6:13 AM CDT	Special Weather Statement	ILX	Sangamon	32 min
Apr 5, 6:42 AM CDT	Special Weather Statement	ILX	Logan, Menard, Sangamon	33 min
Apr 5, 6:46 AM CDT	Special Weather Statement	ILX	Woodford	29 min
Apr 5, 9:14 AM CDT	Special Weather Statement	ILX	Coles, Cumberland, Effingham	31 min
Apr 5, 10:07 AM CDT	Special Weather Statement	ILX	Edgar	23 min
Apr 5, 11:09 AM CDT	Special Weather Statement	ILX	Clay, Richland	36 min

Nearby

Severe Thunderstorm Warnings in Illinois, 2023 Every severe thunderstorm warning 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.