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 Oct 14, 2017, 9:06 PM CDT for Bureau County, Putnam County, Illinois. It was in force for 54 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
- Oct 14, 2017, 9:06 PM CDT (02:06 UTC)
- Expired
- Oct 14, 2017, 10:00 PM CDT
- In force
- 54 min
- Issued by
- NWS Quad Cities, IA
Counties Bureau County, IL, Putnam County, IL
The radar
The Quad Cities radar (KDVN), 91 km from the middle of the area, began a volume at 02:09 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 00:00Z, 2.1 hours before the alert went out and 86 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
- 98 J/kg
- Mixed-layer CIN
- -119 J/kg
- Mixed-layer LCL
- 689 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 242 m²/s²
- 0-3 km storm-relative helicity
- 333 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.8
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 Oct 14, 8:52 PM CDT, 14 minutes earlier.
Area forecast discussion, Oct 14, 8:52 PM CDT, 14 minutes before
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</html>Hazardous weather outlook, Oct 14, 3:41 PM CDT, 5 hours 25 minutes before
Hazardous Weather Outlook National Weather Service Quad Cities IA IL 341 PM CDT Sat Oct 14 2017 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-152045- 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- 341 PM CDT Sat Oct 14 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 The Storm Prediction Center has placed an enhanced risk of severe thunderstorms south of a line from from Fairfield to Sterling Rockfalls with a slight risk to the north, The main threats from severe thunderstorms are damaging winds up to 70 MPH and a brief tornado along with heavy rain. There is also the risk of widespread heavy rain across the area through midnight on Sunday. A flood watch for flash flooding remains in effect through 4 AM on Sunday. Areas south of a line from Fairfield to Galesburg have already received between 0.50 to 0.75 inches whiles area to the north have received 0.75 inches to 2.50 inches to the north of that line. Heavy rains of 1 to 2 inches remain possible this evening which could cause flash flooding especially in areas that have received heavy rain. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY Patchy frost is possible early Monday morning, especially along and north of Interstate 80. .SPOTTER INFORMATION STATEMENT... Spotter activation remains possible this evening. DC
In the hours before
Local storm report, Oct 14, 8:08 PM CDT, 58 minutes before
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</html>Local storm report, Oct 14, 8:22 PM CDT, 44 minutes before
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</html>Local storm report, Oct 14, 8:30 PM CDT, 36 minutes before
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</html>Local storm report, Oct 14, 8:35 PM CDT, 31 minutes before
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</html>Local storm report, Oct 14, 8:44 PM CDT, 22 minutes before
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</html>Special weather statement, Oct 14, 9:06 PM CDT, 0 minutes before
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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 |
|---|---|---|---|---|
| Oct 14, 7:58 PM CDT | Severe Thunderstorm Warning | DVN | Hancock, Henderson, McDonough, Warren | 62 min |
| Oct 14, 9:48 PM CDT | Special Weather Statement | DVN | Putnam | 27 min |
| Oct 14, 10:49 PM CDT | River Flood Watch | DVN | Henry, Rock Island | 4 days |
| Oct 14, 10:49 PM CDT | River Flood Watch | DVN | Henry | 3 days |
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.