Alert archive / Illinois / Special Weather Statements in 2017
Special Weather Statement, NWS Quad Cities, IA
NWS Quad Cities, IA issued this special weather statement at Aug 2, 2017, 3:13 PM CDT for Hancock County, Illinois. It was in force for 62 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 2, 2017, 3:13 PM CDT (20:13 UTC)
- Expired
- Aug 2, 2017, 4:15 PM CDT
- In force
- 62 min
- Issued by
- NWS Quad Cities, IA
County Hancock County, IL
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 8.2 hours before the alert went out and 207 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
- 53 J/kg
- Mixed-layer CIN
- -85 J/kg
- Mixed-layer LCL
- 1165 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 18 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
<!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>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Aug 2, 12:43 PM CDT, 2 hours 30 minutes earlier.
Area forecast discussion, Aug 2, 12:43 PM CDT, 2 hours 30 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, Aug 2, 3:54 AM CDT, 11 hours 19 minutes before
Hazardous Weather Outlook National Weather Service Quad Cities IA IL 354 AM CDT Wed Aug 2 2017 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-030900- Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Iowa-Johnson- Cedar-Clinton-Muscatine-Scott-Keokuk-Washington-Louisa-Jefferson- Henry IA-Des Moines-Van Buren-Lee-Jo Daviess-Stephenson-Carroll- Whiteside-Rock Island-Henry IL-Bureau-Putnam-Mercer-Henderson- Warren-Hancock-McDonough-Scotland-Clark- 354 AM CDT Wed Aug 2 2017 This Hazardous Weather Outlook is for portions of north central Illinois...northwest Illinois...west central Illinois...east central Iowa...northeast Iowa...southeast Iowa and northeast Missouri. .DAY ONE...TODAY AND TONIGHT Isolated thunderstorms are expected this afternoon into tonight. The primary risks are lightning and brief heavy rain. Coverage will remain low, so many locations will not be impacted. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY Scattered thunderstorms are expected on Thursday, mainly during the afternoon and evening as a cold front moves through. There is a Slight Risk for severe thunderstorms east of a Manchester, Iowa to Burlington, Iowa to Macomb, IL line, and a Marginal Risk to the west. The strongest storms may produce damaging winds and large hail. Heavy rainfall rates and frequent lightning are a threat from any storms that form. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed today or tonight. Wolf/Uttech
In the hours before
Special weather statement, Aug 2, 3:13 PM CDT, 0 minutes before
Special Weather Statement National Weather Service Quad Cities IA/IL 313 PM CDT WED AUG 2 2017 ILC067-022115- Hancock- 313 PM CDT WED AUG 2 2017 ...A STRONG THUNDERSTORM WILL AFFECT SOUTHEASTERN HANCOCK COUNTY UNTIL 415 PM CDT... At 311 PM CDT, a strong thunderstorm was located near Augusta, or 12 miles southeast of Carthage, moving southeast at 5 mph. Radar has estimated rainfall of over an inch in the past hour. Pea size hail is possible with this storm. Locations impacted include... Augusta, Bowen, Plymouth, Denver, Bentley and Hancock County Fairgrounds. Torrential rainfall is also occurring with this storm, and may cause localized flooding. Do not drive your vehicle through flooded roadways. LAT...LON 4020 9111 4033 9113 4038 9091 4019 9091 TIME...MOT...LOC 2011Z 063DEG 5KT 4027 9100 HAASE
The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 3:44 PM CDT | Special Weather Statement | DVN | McDonough | 61 min |
| Aug 2, 4:16 PM CDT | Special Weather Statement | DVN | Rock Island | 59 min |
| Aug 2, 4:27 PM CDT | Special Weather Statement | DVN | McDonough | 63 min |
Nearby
Special Weather Statements in Illinois, 2017Every special weather statement 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.