Alert archive / Illinois / Freeze Warnings in 2024
Freeze Warning 3, NWS Lincoln, IL
NWS Lincoln, IL issued this freeze warning at Apr 20, 2024, 2:25 PM CDT for 10 counties in Illinois. It took effect at Apr 21, 2024, 3:00 AM CDT. It was in force for 5 hr. 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 20, 2024, 2:25 PM CDT (19:25 UTC)
- In effect from
- Apr 21, 2024, 3:00 AM CDT
- Expired
- Apr 21, 2024, 8:00 AM CDT
- In force
- 5 hr
- Issued by
- NWS Lincoln, IL
Counties Fulton County, IL, Knox County, IL, Marshall County, IL, Mason County, IL, McLean County, IL, Peoria County, IL, Schuyler County, IL, Stark County, IL, Tazewell County, IL, Woodford County, IL
The radar
The Lincoln radar (KILX), 65 km from the middle of the area, began a volume at 19:24 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, 7.4 hours before the alert went out and 112 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1527 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 37 m²/s²
- 0-3 km storm-relative helicity
- 112 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this freeze 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 freeze warning went out at Apr 20, 12:51 PM CDT, 1 hour 34 minutes earlier.
Area forecast discussion, Apr 20, 12:51 PM CDT, 1 hour 34 minutes before
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</html>The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 19, 8:20 PM CDT | Freeze Warning | ILX | Knox, Marshall, Stark | 12 hr |
| Apr 20, 2:25 PM CDT | Frost Advisory | ILX | Cass, Champaign, Christian, Coles, DeWitt, Douglas and 11 more | 18 hr |
Nearby
Freeze Warnings in Illinois, 2024Every freeze warning in 2024
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.