Alert archive / Illinois / Dense Fog Advisories in 2017
Dense Fog Advisory 13, NWS Lincoln, IL
NWS Lincoln, IL issued this dense fog advisory at Jun 5, 2017, 6:14 AM CDT for 6 counties in Illinois. It was in force for 96 min.
The area
The counties it named.
The facts
- Issued
- Jun 5, 2017, 6:14 AM CDT (11:14 UTC)
- Expired
- Jun 5, 2017, 7:50 AM CDT
- In force
- 96 min
- Issued by
- NWS Lincoln, IL
Counties Christian County, IL, Clay County, IL, Effingham County, IL, Jasper County, IL, Richland County, IL, Shelby County, IL
The radar
The Evansville,IN radar (KVWX), 117 km from the middle of the area, began a volume at 11:17 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
Nashville Metro, TN (KBNA), launched 00:00Z, 11.2 hours before the alert went out and 371 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
- 508 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 981 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 33 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.6
Nearby
Dense Fog Advisories in Illinois, 2017Every dense fog advisory in 2017
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.