Alert archive / Illinois / Heat Advisories in 2017
Heat Advisory 3, NWS Lincoln, IL
NWS Lincoln, IL issued this heat advisory at Jul 18, 2017, 3:07 PM CDT for 15 counties in Illinois. It took effect at Jul 19, 2017, 12:00 PM CDT. It was in force for 3 days.
The area
The counties it named.
The facts
- Issued
- Jul 18, 2017, 3:07 PM CDT (20:07 UTC)
- In effect from
- Jul 19, 2017, 12:00 PM CDT
- Expired
- Jul 22, 2017, 8:00 PM CDT
- In force
- 3 days
- Issued by
- NWS Lincoln, IL
Counties Champaign County, IL, Clark County, IL, Coles County, IL, DeWitt County, IL, Douglas County, IL, Edgar County, IL, Knox County, IL, Marshall County, IL, McLean County, IL, Peoria County, IL, Piatt County, IL, Stark County, IL, Tazewell County, IL, Vermilion County, IL, Woodford County, IL
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 12:00Z, 8.1 hours before the alert went out and 438 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
- 59 J/kg
- Mixed-layer CIN
- -82 J/kg
- Mixed-layer LCL
- 1232 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- 52 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 Lincoln, IL wrote its last area forecast discussion before this heat advisory went out at Jul 18, 12:59 PM CDT, 2 hours 8 minutes earlier.
Area forecast discussion, Jul 18, 12:59 PM CDT, 2 hours 8 minutes before
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</html>Hazardous weather outlook, Jul 18, 11:56 AM CDT, 3 hours 11 minutes before
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<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
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<main class="wrap">
<section class="card" role="status" aria-live="polite">
<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
<p id="message1">
The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
<p id="message2">
Please try again in a few minutes.
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<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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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 |
|---|---|---|---|---|
| Jul 18, 3:07 PM CDT | Excessive Heat Warning | ILX | Cass, Christian, Clay, Crawford, Cumberland, Effingham and 18 more | 4 days |
Nearby
Heat Advisories in Illinois, 2017Every heat 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.