Alert archive / Illinois / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 76, NWS Lincoln, IL
NWS Lincoln, IL issued this severe thunderstorm warning at Jul 15, 2021, 4:52 PM CDT for 4 counties in Illinois. It was in force for 38 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
- Jul 15, 2021, 4:52 PM CDT (21:52 UTC)
- Expired
- Jul 15, 2021, 5:30 PM CDT
- In force
- 38 min
- Issued by
- NWS Lincoln, IL
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties DeWitt County, IL, Macon County, IL, McLean County, IL, Piatt County, IL
The radar
The Lincoln radar (KILX), 59 km from the middle of the area, began a volume at 21:55 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, 9.9 hours before the alert went out and 4 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.
- Mixed-layer CAPE
- 628 J/kg
- Mixed-layer CIN
- -48 J/kg
- Mixed-layer LCL
- 1096 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 217 m²/s²
- 0-3 km storm-relative helicity
- 188 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.6
The text
As transmitted.
800
WUUS53 KILX 152152
SVRILX
ILC039-113-115-147-152230-
/O.NEW.KILX.SV.W.0076.210715T2152Z-210715T2230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Lincoln IL
452 PM CDT Thu Jul 15 2021
The National Weather Service in Lincoln has issued a
* Severe Thunderstorm Warning for...
Piatt County in central Illinois...
Eastern De Witt County in central Illinois...
Southeastern McLean County in central Illinois...
Northeastern Macon County in central Illinois...
* Until 530 PM CDT.
* At 451 PM CDT, severe thunderstorms were located along a line
extending from near Le Roy to near Weldon to near Oreana, moving
east at 40 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Severe thunderstorms will be near...
Weldon around 500 PM CDT.
Farmer City and De Land around 505 PM CDT.
Other locations in the path of these severe thunderstorms include
Monticello, Mansfield and White Heath.
This includes the following highways...
Interstate 72 between mile markers 151 and 173.
Interstate 74 between mile markers 152 and 168.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3995 8847 3996 8888 4016 8886 4028 8888
4040 8846 4024 8846
TIME...MOT...LOC 2151Z 268DEG 35KT 4032 8886 4018 8883 3997 8886
HAIL...1.00IN
WIND...60MPH
$$
Barnes1 follow-up statement
661
WWUS53 KILX 152220
SVSILX
Severe Weather Statement
National Weather Service Lincoln IL
520 PM CDT Thu Jul 15 2021
ILC039-115-152230-
/O.CAN.KILX.SV.W.0076.000000T0000Z-210715T2230Z/
De Witt-Macon-
520 PM CDT Thu Jul 15 2021
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN DE WITT AND
NORTHEASTERN MACON COUNTIES IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
LAT...LON 3996 8868 4017 8857 4036 8857 4040 8846
4024 8846 3995 8847
TIME...MOT...LOC 2220Z 265DEG 28KT 4033 8855 4019 8852 3998 8856
$$
ILC113-147-152230-
/O.CON.KILX.SV.W.0076.000000T0000Z-210715T2230Z/
Piatt-McLean-
520 PM CDT Thu Jul 15 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CDT
FOR NORTHERN PIATT AND SOUTHEASTERN MCLEAN COUNTIES...
At 520 PM CDT, severe thunderstorms were located along a line
extending from 6 miles south of Saybrook to Mansfield to near
Monticello, moving east at 35 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
These severe thunderstorms will remain over mainly rural areas of
northern Piatt and southeastern McLean Counties, including the
following locations... Galesville, Lodge and Bellflower.
This includes the following highways...
Interstate 72 between mile markers 162 and 173.
Interstate 74 between mile markers 163 and 168.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3996 8868 4017 8857 4036 8857 4040 8846
4024 8846 3995 8847
TIME...MOT...LOC 2220Z 265DEG 28KT 4033 8855 4019 8852 3998 8856
HAIL...1.00IN
WIND...60MPH
$$
BarnesThe office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 15, 4:52 AM CDT | Flash Flood Warning | ILX | Marshall, Peoria, Stark, Woodford | 5 hr |
| Jul 15, 12:48 PM CDT | Special Weather Statement | ILX | Christian, Clark, Coles, Cumberland, Douglas, Edgar and 6 more | 117 min |
| Jul 15, 1:40 PM CDT | Tornado Warning | ILX | Coles | 34 min |
| Jul 15, 3:39 PM CDT | Severe Thunderstorm Warning | ILX | Logan, Mason, Menard, Sangamon | 66 min |
| Jul 15, 4:19 PM CDT | Special Weather Statement | ILX | DeWitt | 41 min |
| Jul 15, 4:43 PM CDT | Areal Flood Advisory | ILX | McLean | 3 hr |
| Jul 15, 5:01 PM CDT | Flash Flood Warning | ILX | DeWitt, McLean | 3 hr |
| Jul 15, 5:26 PM CDT | Special Weather Statement | ILX | Champaign | 64 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 2021Every severe thunderstorm warning 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.