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 Jul 5, 2017, 4:45 PM CDT for Bureau County, Illinois. It was in force for 30 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
- Jul 5, 2017, 4:45 PM CDT (21:45 UTC)
- Expired
- Jul 5, 2017, 5:15 PM CDT
- In force
- 30 min
- Issued by
- NWS Quad Cities, IA
County Bureau County, IL
The radar
The Quad Cities radar (KDVN), 77 km from the middle of the area, began a volume at 21:46 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
Davenport, (KDVN), launched 12:00Z, 9.8 hours before the alert went out and 71 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
- 552 J/kg
- Mixed-layer CIN
- -48 J/kg
- Mixed-layer LCL
- 1126 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- 12 m²/s²
- 0-3 km storm-relative helicity
- 6 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
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</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 Jul 5, 3:09 PM CDT, 1 hour 36 minutes earlier.
Area forecast discussion, Jul 5, 3:09 PM CDT, 1 hour 36 minutes before
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</html>Hazardous weather outlook, Jul 5, 11:41 AM CDT, 5 hours 4 minutes before
Hazardous Weather Outlook National Weather Service Quad Cities IA IL 1141 AM CDT Wed Jul 5 2017 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-061645- 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- 1141 AM CDT Wed Jul 5 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...THIS AFTERNOON AND TONIGHT This afternoon into early this evening...Isolated to scattered thunderstorms can be expected. A few of the stronger storms may produce wind gusts to 40 MPH and small hail. Thunderstorms will also be slow moving and produce localized rainfall of an inch or two in a short time. Heat index values will push into the lower 90s at many locations this afternoon, but a few spots may see mid 90s. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY Thursday afternoon...heat index values will soar into the mid 90s at many locations, but upper 90s are possible. There is a chance of thunderstorms Thursday evening and overnight. The Storm Prediction Center has a slight risk for severe storms across much of the outlook area. The main risk will be damaging winds and large hail. There is a chance for thunderstorms early next week. However, it is too early to determine the severe weather risk. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed this afternoon or tonight. Haase
In the hours before
Special weather statement, Jul 5, 3:27 PM CDT, 1 hour 18 minutes before
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</html>Special weather statement, Jul 5, 4:45 PM CDT, 0 minutes before
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The site you requested is temporarily down for maintenance or an unexpected outage.
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Please try again in a few minutes.
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</html>The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 5, 3:27 PM CDT | Special Weather Statement | DVN | Dubuque | 63 min |
| Jul 5, 5:12 PM CDT | Special Weather Statement | DVN | Scott | 33 min |
| Jul 5, 5:43 PM CDT | Special Weather Statement | DVN | Mercer | 32 min |
| Jul 5, 5:56 PM CDT | Special Weather Statement | DVN | Stephenson | 34 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; radar from the NEXRAD Level II archive.