Alert archive / Iowa / Heat Advisories in 2015
Heat Advisory 4, NWS Quad Cities, IA
NWS Quad Cities, IA issued this heat advisory at Jul 25, 2015, 3:02 AM CDT for 13 counties in Iowa; 9 counties in Illinois; Clark County, Scotland County, Missouri. It took effect at Jul 25, 2015, 12:00 PM CDT. It was in force for .
The area
The counties it named.
The facts
- Issued
- Jul 25, 2015, 3:02 AM CDT (08:02 UTC)
- In effect from
- Jul 25, 2015, 12:00 PM CDT
- Expired
- Jul 25, 2015, 11:59 AM CDT
- In force
- Issued by
- NWS Quad Cities, IA
All 24 counties
Cedar County, IA, Des Moines County, IA, Henry County, IA, Iowa County, IA, Jefferson County, IA, Johnson County, IA, Keokuk County, IA, Lee County, IA, Louisa County, IA, Muscatine County, IA, Scott County, IA, Van Buren County, IA, Washington County, IA, Bureau County, IL, Hancock County, IL, Henderson County, IL, Henry County, IL, McDonough County, IL, Mercer County, IL, Putnam County, IL, Rock Island County, IL, Warren County, IL, Clark County, MO, Scotland County, MO
The radar
The Quad Cities radar (KDVN), 73 km from the middle of the area, began a volume at 08:08 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
Omaha, NE (KOAX), launched 00:00Z, 8.0 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
- 3998 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 1338 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 5 m²/s²
- 0-3 km storm-relative helicity
- 102 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.8
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 Quad Cities, IA wrote its last area forecast discussion before this heat advisory went out at Jul 24, 11:57 PM CDT, 3 hours 5 minutes earlier.
Area forecast discussion, Jul 24, 11:57 PM CDT, 3 hours 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>The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 25, 4:06 AM CDT | Special Weather Statement | DVN | Lee, Van Buren | 54 min |
| Jul 25, 6:19 AM CDT | Special Weather Statement | DVN | Henry, Jefferson, Keokuk, Lee, Van Buren, Washington | 56 min |
| Jul 25, 4:37 AM CDT | Special Weather Statement | DVN | Hancock | 53 min |
Nearby
Heat Advisories in Iowa, 2015Heat Advisories in Illinois, 2015Heat Advisories in Missouri, 2015Every heat advisory in 2015
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.