Alert archive / Illinois / Frost Advisories in 2023
Frost Advisory 4, NWS Lincoln, IL
NWS Lincoln, IL issued this frost advisory at Apr 23, 2023, 2:46 AM CDT for Clay County, Lawrence County, Richland County, Illinois. It took effect at Apr 24, 2023, 1:00 AM CDT. It was in force for .
The area
The counties it named.
The facts
- Issued
- Apr 23, 2023, 2:46 AM CDT (07:46 UTC)
- In effect from
- Apr 24, 2023, 1:00 AM CDT
- Expired
- Apr 23, 2023, 1:58 PM CDT
- In force
- Issued by
- NWS Lincoln, IL
Counties Clay County, IL, Lawrence County, IL, Richland County, IL
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 7.8 hours before the alert went out and 164 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
- 1457 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 51 m²/s²
- 0-3 km storm-relative helicity
- 86 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this frost advisory 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 frost advisory went out at Apr 22, 6:53 PM CDT, 7 hours 53 minutes earlier.
Area forecast discussion, Apr 22, 6:53 PM CDT, 7 hours 53 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 23, 2:46 AM CDT | Freeze Warning | ILX | Cass, Champaign, Christian, Clark, Clay, Coles and 29 more | 29 hr |
Nearby
Frost Advisories in Illinois, 2023Every frost advisory 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.