Alert archive / Illinois / Heat Advisories in 2012
Heat Advisory 3, NWS Paducah, KY
NWS Paducah, KY issued this heat advisory at Jul 17, 2012, 3:58 AM CDT for Daviess County, Henderson County, Union County, Kentucky; 12 counties in Illinois; Perry County, Missouri. It took effect at Jul 17, 2012, 11:00 AM CDT. It was in force for 27 hr.
The area
The counties it named.
The facts
- Issued
- Jul 17, 2012, 3:58 AM CDT (08:58 UTC)
- In effect from
- Jul 17, 2012, 11:00 AM CDT
- Expired
- Jul 18, 2012, 1:37 PM CDT
- In force
- 27 hr
- Issued by
- NWS Paducah, KY
Counties Edwards County, IL, Franklin County, IL, Gallatin County, IL, Hamilton County, IL, Jackson County, IL, Jefferson County, IL, Perry County, IL, Saline County, IL, Wabash County, IL, Wayne County, IL, White County, IL, Williamson County, IL, Daviess County, KY, Henderson County, KY, Union County, KY, Perry County, MO
The radar
The Evansville,IN radar (KVWX), 73 km from the middle of the area, began a volume at 09:04 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, 9.0 hours before the alert went out and 266 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
- 2447 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 1448 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- -22 m²/s²
- 0-3 km storm-relative helicity
- -14 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this heat advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Paducah, KY wrote its last area forecast discussion before this heat advisory went out at Jul 17, 3:38 AM CDT, 20 minutes earlier.
Area forecast discussion, Jul 17, 3:38 AM CDT, 20 minutes before
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</html>Hazardous weather outlook, Jul 16, 8:35 PM CDT, 7 hours 23 minutes before
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</html>The office that day
Everything else NWS Paducah, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 2:49 PM CDT | Heat Advisory | PAH | Ballard, Caldwell, Calloway, Carlisle, Christian, Crittenden and 13 more | 53 hr |
Nearby
Heat Advisories in Illinois, 2012Heat Advisories in Kentucky, 2012Heat Advisories in Missouri, 2012Every heat advisory in 2012
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.