Alert archive / Illinois / Heat Advisories in 2021
Heat Advisory 1, NWS Paducah, KY
NWS Paducah, KY issued this heat advisory at Jun 17, 2021, 3:10 PM CDT for 10 counties in Illinois; Perry County, Missouri. It took effect at Jun 18, 2021, 1:00 PM CDT. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Jun 17, 2021, 3:10 PM CDT (20:10 UTC)
- In effect from
- Jun 18, 2021, 1:00 PM CDT
- Expired
- Jun 18, 2021, 7:00 PM CDT
- In force
- 6 hr
- Issued by
- NWS Paducah, KY
Counties Edwards County, IL, Franklin County, IL, Hamilton County, IL, Jackson County, IL, Jefferson County, IL, Perry County, IL, Wabash County, IL, Wayne County, IL, White County, IL, Williamson County, IL, Perry County, MO
The radar
The Evansville,IN radar (KVWX), 93 km from the middle of the area, began a volume at 20:13 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, 8.2 hours before the alert went out and 229 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
- 2495 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 62 m²/s²
- 0-3 km storm-relative helicity
- 185 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 Jun 17, 3:05 PM CDT, 5 minutes earlier.
Area forecast discussion, Jun 17, 3:05 PM CDT, 5 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<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.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Hazardous weather outlook, Jun 17, 3:28 AM CDT, 11 hours 42 minutes before
Hazardous Weather Outlook National Weather Service Paducah KY 328 AM CDT Thu Jun 17 2021 ILZ075>078-080>094-INZ081-082-085>088-KYZ001>022-MOZ076-086-087- 100-107>112-114-181000- Jefferson-Wayne IL-Edwards-Wabash-Perry IL-Franklin-Hamilton- White-Jackson-Williamson-Saline-Gallatin-Union-Johnson-Pope- Hardin-Alexander-Pulaski-Massac-Gibson-Pike-Posey-Vanderburgh- Warrick-Spencer-Fulton-Hickman-Carlisle-Ballard-McCracken-Graves- Livingston-Marshall-Calloway-Crittenden-Lyon-Trigg-Caldwell- Union KY-Webster-Hopkins-Christian-Henderson-Daviess-McLean- Muhlenberg-Todd-Perry MO-Bollinger-Cape Girardeau-Wayne MO-Carter- Ripley-Butler-Stoddard-Scott-Mississippi-New Madrid- 328 AM CDT Thu Jun 17 2021 This Hazardous Weather Outlook is for portions of southern Illinois, southwest Indiana, western Kentucky, and southeast Missouri. .DAY ONE...Today and Tonight There is just a slight chance of a thunderstorm west of Highway 67 in southeast Missouri today. Otherwise no hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Friday through Wednesday Heat index values may approach 105 degrees Friday afternoon across portions of southeast Missouri, southern Illinois and southwest Indiana. There is only a slight chance of thunderstorms late Friday through Saturday night, mainly across southern Illinois into southwest Indiana and adjacent northwest Kentucky. The chance of thunderstorms will be slightly higher Sunday. Stronger and more organized thunderstorms will be possible area wide later Monday into Monday night, with gusty winds and locally heavy rainfall the main hazards. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated.
In the hours before
Special weather statement, Jun 17, 9:55 AM CDT, 5 hours 15 minutes before
Special Weather Statement
National Weather Service Paducah KY
955 AM CDT Thu Jun 17 2021
MOZ107-171545-
Carter MO-
955 AM CDT Thu Jun 17 2021
...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN CARTER COUNTY UNTIL
1045 AM CDT...
At 953 AM CDT, Doppler radar was tracking a strong thunderstorm near
Ellington, or 11 miles north of Van Buren, moving south at 10 mph.
Frequently cloud to ground lightning, half inch hail and wind gusts
up to 50 mph will be possible with this storm. Further
intensification is possible and severe weather may develop with this
storm, mainly in the form of damaging winds.
Locations impacted include...
Clearwater Lake...Current River...Van Buren and Fremont.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
If on or near Clearwater Lake or the Current River in Carter County,
get out of the water and move indoors or inside a vehicle. Remember,
lightning can strike out to 10 miles from the parent thunderstorm.
If you can hear thunder, you are close enough to be struck by
lightning. Move to safe shelter now! Do not be caught on the water
in a thunderstorm.
Persons in campgrounds should consider seeking sturdy shelter until
this storm passes.
&&
LAT...LON 3708 9120 3708 9111 3710 9101 3710 9096
3705 9096 3705 9083 3700 9080 3690 9122
TIME...MOT...LOC 1453Z 340DEG 10KT 3717 9105
JGGSpecial weather statement, Jun 17, 10:38 AM CDT, 4 hours 32 minutes before
Special Weather Statement National Weather Service Paducah KY 1038 AM CDT Thu Jun 17 2021 MOZ107-171630- Carter MO- 1038 AM CDT Thu Jun 17 2021 ...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL CARTER COUNTY UNTIL 1130 AM CDT... At 1037 AM CDT, Doppler radar was tracking a strong thunderstorm near Van Buren, moving south at 15 mph. Frequent cloud to ground lightning, half inch hail and wind gusts up to 50 mph will be possible with this storm. Locations impacted include... Van Buren, Hunter and Grandin. PRECAUTIONARY/PREPAREDNESS ACTIONS... Torrential rainfall is also occurring with this storm, and may lead to localized flooding. Do not drive your vehicle through flooded roadways. Frequent cloud to ground lightning is occurring with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. && LAT...LON 3703 9106 3704 9083 3682 9077 3683 9107 TIME...MOT...LOC 1537Z 000DEG 15KT 3696 9094 JGG
Local storm report, Jun 17, 12:07 PM CDT, 3 hours 3 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<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.
</p>
<p class="small" id="detail">
If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
</p>
</section>
</main>
<script src="index.js"></script>
</body>
</html>The office that day
Everything else NWS Paducah, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 17, 9:55 AM CDT | Special Weather Statement | PAH | Carter | 50 min |
| Jun 17, 10:38 AM CDT | Special Weather Statement | PAH | Carter | 52 min |
| Jun 17, 10:58 AM CDT | Severe Thunderstorm Warning | PAH | Carter, Ripley | 32 min |
| Jun 17, 11:19 AM CDT | Severe Thunderstorm Warning | PAH | Ripley | 41 min |
Nearby
Heat Advisories in Illinois, 2021Heat Advisories in Missouri, 2021Every heat advisory in 2021
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.