Alert archive / Illinois / River Flood Watches in 2017
River Flood Watch 64, NWS Quad Cities, IA
NWS Quad Cities, IA issued this river flood watch at Jul 12, 2017, 3:55 PM CDT for Whiteside County, Illinois. It took effect at Jul 14, 2017, 10:00 AM CDT. It was in force for 4 days.
The area
The counties it named.
The facts
- Issued
- Jul 12, 2017, 3:55 PM CDT (20:55 UTC)
- In effect from
- Jul 14, 2017, 10:00 AM CDT
- Expired
- Jul 18, 2017, 1:00 PM CDT
- In force
- 4 days
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
- Flood severity
- None
County Whiteside County, IL
The radar
The Quad Cities radar (KDVN), 58 km from the middle of the area, began a volume at 20:56 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 river
Written for the forecast point Rock River at Como (CMOI2). The gauge peaked at 9.04 ft at Jul 17, 2017, 10:00 AM CDT.
- Action stage
- 10 ft
- Minor stage
- 12.5 ft
- Moderate stage
- 15.5 ft
- Major stage
- 18 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 05443500, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.
What forecasters said that day
The local office's own words before this river flood watch 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 river flood watch went out at Jul 12, 3:41 PM CDT, 14 minutes earlier.
Area forecast discussion, Jul 12, 3:41 PM CDT, 14 minutes before
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</html>Hazardous weather outlook, Jul 12, 3:43 PM CDT, 12 minutes before
Hazardous Weather Outlook National Weather Service Quad Cities IA IL 343 PM CDT Wed Jul 12 2017 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-132045- 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- 343 PM CDT Wed Jul 12 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 Scattered thunderstorms are expected this afternoon and tonight. Severe storms are possible with the primary risks being damaging winds of 60 to 70 MPH, and flooding rains. Large hail is an isolated risk. Areas that have recently received heavy rainfall during the past few days will be especially prone to flash flooding. Some area tributary rivers that are impacted by storms will also experience significant rises. The Storm Prediction Center has placed the entire area in a slight risk for severe weather. Heat indices in the upper 90s to near 100 F are expected along and south of a Marengo, Iowa to Moline, Illinois line into the early evening. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY The next chance for scattered storms will be Saturday night into Sunday. It is too early to assess the potential for severe weather. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed this evening and tonight. Uttech/12
In the hours before
Local storm report, Jul 12, 11:10 AM CDT, 4 hours 45 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1110 AM CDT WED JUL 12 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1230 AM TSTM WND DMG 2 WNW DUBUQUE 42.52N 90.73W
07/12/2017 DUBUQUE IA TRAINED SPOTTER
NUMEROUS TREES AND BRANCHES DOWN.
&&
UTTECHSpecial weather statement, Jul 12, 11:18 AM CDT, 4 hours 37 minutes before
Special Weather Statement National Weather Service Quad Cities IA/IL 1118 AM CDT WED JUL 12 2017 ILC015-121645- Carroll- 1118 AM CDT WED JUL 12 2017 ...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHEASTERN CARROLL COUNTY UNTIL 1145 AM CDT... At 1117 AM CDT, radar indicated strong thunderstorms were located along a line extending from near Shannon to near Chadwick. Movement was east at 30 mph. Winds in excess of 40 mph and half inch hail are possible with these storms. Locations impacted include... Lanark, Shannon, Chadwick and Hitt. LAT...LON 4201 8994 4218 8985 4218 8969 4197 8969 TIME...MOT...LOC 1617Z 272DEG 26KT 4211 8970 4204 8985 UTTECH
Local storm report, Jul 12, 11:29 AM CDT, 4 hours 26 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1129 AM CDT WED JUL 12 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1127 AM HEAVY RAIN STOCKTON 42.35N 90.01W
07/12/2017 M1.13 INCH JO DAVIESS IL CO-OP OBSERVER
RAIN FELL IN JUST OVER AN HOUR.
&&
BROOKSLocal storm report, Jul 12, 12:12 PM CDT, 3 hours 43 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1212 PM CDT WED JUL 12 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0535 PM TORNADO 3 NE WILLIAMSBURG 41.70N 91.97W
07/11/2017 F1 IOWA IA NWS STORM SURVEY
AN EF-1 TORNADO, WITH PEAK ESTIMATED WINDS OF 105 MPH,
TOUCHED DOWN NORTHEAST OF WILLIAMSBURG AT 535 PM CDT AND
PRODUCED DAMAGE TO MAINLY TREES AND CROPS ALONG ITS 4.6
MILE PATH. ITS MAX WIDTH WAS 60 YARDS. TWO HOUSES
SUSTAINED DAMAGE TO WINDOWS AND SIDING. ONE FARM
OUTBUILDING LOST PART OF ITS ROOF, AND ANOTHER WAS
PARTIALLY DESTROYED. THE TORNADO LIFTED AT 554 PM.
&&
DCLocal storm report, Jul 12, 12:19 PM CDT, 3 hours 36 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1219 PM CDT WED JUL 12 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1147 AM HEAVY RAIN SSE SHANNON 42.15N 89.74W
07/12/2017 M1.84 INCH CARROLL IL TRAINED SPOTTER
RAIN FELL IN JUST UNDER AN HOUR.
&&
BROOKSThe office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 11, 7:26 PM CDT | Special Weather Statement | DVN | Johnson | 64 min |
| Jul 11, 10:17 PM CDT | Severe Thunderstorm Warning | DVN | Delaware, Dubuque | 58 min |
| Jul 11, 11:03 PM CDT | Flash Flood Warning | DVN | Dubuque | 6 hr |
| Jul 11, 11:52 PM CDT | Severe Thunderstorm Warning | DVN | Dubuque | 53 min |
| Jul 12, 12:37 AM CDT | Severe Thunderstorm Warning | DVN | Dubuque, Jackson | 52 min |
| Jul 12, 12:57 AM CDT | Severe Thunderstorm Warning | DVN | Jackson | 63 min |
| Jul 12, 4:05 AM CDT | Heat Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 16 hr |
| Jul 12, 9:39 AM CDT | Flash Flood Watch | DVN | Dubuque | 6 hr |
| Jul 12, 3:13 PM CDT | Flash Flood Watch | DVN | Des Moines, Henry, Jefferson, Lee, Louisa, Muscatine and 3 more | 12 hr |
| Jul 12, 6:09 PM CDT | Special Weather Statement | DVN | Benton, Iowa | 66 min |
| Jul 12, 11:18 AM CDT | Special Weather Statement | DVN | Carroll | 27 min |
| Jul 12, 3:55 PM CDT | River Flood Watch | DVN | Henry, Rock Island, Whiteside | 7 days |
| Jul 12, 6:50 PM CDT | Special Weather Statement | DVN | Scotland | 70 min |
Nearby
River Flood Watches in Illinois, 2017Every river flood watch 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; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.