Alert archive / Iowa / Special Weather Statements in 2017
Special Weather Statement, NWS Quad Cities, IA
NWS Quad Cities, IA issued this special weather statement at Jul 3, 2017, 3:07 PM CDT for Muscatine County, Iowa. It was in force for 23 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 3, 2017, 3:07 PM CDT (20:07 UTC)
- Expired
- Jul 3, 2017, 3:30 PM CDT
- In force
- 23 min
- Issued by
- NWS Quad Cities, IA
County Muscatine County, IA
The radar
The Quad Cities radar (KDVN), 61 km from the middle of the area, began a volume at 20:09 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 12:00Z, 8.1 hours before the alert went out and 67 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
- 153 J/kg
- Mixed-layer CIN
- -75 J/kg
- Mixed-layer LCL
- 1305 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 46 m²/s²
- 0-3 km storm-relative helicity
- 100 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 3, 2:51 PM CDT, 16 minutes earlier.
Area forecast discussion, Jul 3, 2:51 PM CDT, 16 minutes before
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</html>Hazardous weather outlook, Jul 3, 3:24 AM CDT, 11 hours 43 minutes before
Hazardous Weather Outlook National Weather Service Quad Cities IA IL 324 AM CDT Mon Jul 3 2017 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-040830- 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- 324 AM CDT Mon Jul 3 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 possible this afternoon and evening mainly along and north of Interstate 80. The main threat from these storms would be lightning and heavy rain. At this time, no severe weather is anticipated. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY Tuesday through Wednesday...there is a chance for thunderstorms. Conditions remain unfavorable for a severe risk due to limited instability. Most rain totals will be spotty and light to moderate in intensity and amounts, resulting in a low risk of heavy rains producing water issues. Friday...there is another chance for thunderstorms with the next disturbance and frontal system. It is too early to assess a severe risk at this time. However, overall instability appears to be modest which tends to not support a significant severe threat at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed today or tonight. Gibbs/Nichols
In the hours before
Special weather statement, Jul 3, 12:21 PM CDT, 2 hours 46 minutes before
Special Weather Statement
National Weather Service Quad Cities IA/IL
1221 PM CDT MON JUL 3 2017
IAC045-031745-
Clinton-
1221 PM CDT MON JUL 3 2017
...A STRONG THUNDERSTORM WILL AFFECT EASTERN CLINTON COUNTY UNTIL
1245 PM CDT...
At 1220 PM CDT, a strong thunderstorm was located near Charlotte, or
11 miles northwest of Clinton, moving southeast at 20 mph.
Winds in excess of 40 mph and pea size hail are possible with this
storm.
Locations impacted include...
Clinton, Camanche, Charlotte, Low Moor, Goose Lake, Bryant, Clinton
Municipal Airport and Elvira.
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 4191 9015 4188 9017 4185 9018 4176 9031
4193 9056 4203 9042 4203 9035
TIME...MOT...LOC 1720Z 315DEG 17KT 4195 9041
ERVINLocal storm report, Jul 3, 1:27 PM CDT, 1 hour 40 minutes before
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</html>Special weather statement, Jul 3, 2:26 PM CDT, 41 minutes before
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</html>Special weather statement, Jul 3, 3:07 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 |
|---|---|---|---|---|
| Jul 3, 12:21 PM CDT | Special Weather Statement | DVN | Clinton | 24 min |
| Jul 3, 2:26 PM CDT | Special Weather Statement | DVN | Cedar | 49 min |
| Jul 3, 2:24 PM CDT | Special Weather Statement | DVN | Whiteside | 36 min |
Nearby
Special Weather Statements in Iowa, 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.