Alert archive / Illinois / River Flood Warnings in 2026
River Flood Warning 3, NWS Quad Cities, IA
NWS Quad Cities, IA issued this river flood warning at Apr 4, 2026, 10:15 AM CDT for Henry County, Rock Island County, Illinois. It took effect at Apr 5, 2026, 7:00 PM CDT. It was in force for 3 days.
The area
The counties it named.
The facts
- Issued
- Apr 4, 2026, 10:15 AM CDT (15:15 UTC)
- In effect from
- Apr 5, 2026, 7:00 PM CDT
- Expired
- Apr 8, 2026, 9:00 PM CDT
- In force
- 3 days
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
- Flood severity
- Minor
Counties Henry County, IL, Rock Island County, IL
The radar
The Quad Cities radar (KDVN), 30 km from the middle of the area, began a volume at 15:12 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 Moline (MLII2).
- Action stage
- 11 ft
- Minor stage
- 12 ft
- Moderate stage
- 13 ft
- Major stage
- 14 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record, 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 warning 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 warning went out at Apr 4, 6:35 AM CDT, 3 hours 40 minutes earlier. Its key messages:
- A cloudy blustery day is expected today with cold nights in the next few days.
- Another widespread rainfall event is gaining confidence for mid to late next week.
Area forecast discussion, Apr 4, 6:35 AM CDT, 3 hours 40 minutes before
Area Forecast Discussion National Weather Service Quad Cities IA IL 635 AM CDT Sat Apr 4 2026 .KEY MESSAGES... - A cloudy blustery day is expected today with cold nights in the next few days. - Another widespread rainfall event is gaining confidence for mid to late next week. && .SHORT TERM /THROUGH MONDAY NIGHT/... Issued at 217 AM CDT Sat Apr 4 2026 The early morning rain/t-storms will be moving out of the eastern counties by 6 AM. As the low pressure moves to northern Illinois, the cold front will sweep through the rest of the CWA, with west winds increasing to 15 to 25 mph, and gusts to 30 mph. Today, this CAA will bring low clouds and gusty wind through the entire day. I've lowed the temperatures to the 25% NBM, as this handled the cold air better yesterday. The blustery, and sometimes very windy weather will ease of tonight, with winds lowering to 10 to 20 mph. Lows tonight under mostly cloudy skies will fall to the lower 30s. Sunday appears a much better day, albeit with rather cool temperatures as well. Highs with some sunshine and northwest winds of 10 to 15 mph will reach the lower to mid 50s. A secondary push of blustery cold northwest winds will arrive late Sunday night, with Monday looking very similar to today's highs in the 40s to low 50s under clouds and winds of 15 to 25 mph Northwest. This push of cold air from a very strong high pressure system arriving from Polar regions will bring a very high chance for temperatures in the 20s for all of the CWA, especially the north, where lower 20s is forecast. This is probably the most notable push of cold air we'll see the the rest of this spring season, as southwest flow returns to the forecast for mid to late week and beyond. && .LONG TERM /TUESDAY THROUGH FRIDAY/... Issued at 217 AM CDT Sat Apr 4 2026 Though southeast winds and WAA will begin to spread into the area on Tuesday, this shallow cold air mass will provide one last day in the 40s for the area. By Tuesday night and Wednesday, the south to southeast winds will finally bring back near to above normal temperatures to the region. With southwest to zonal flow in the extended forecast, along with increased moisture values, we're near to above normal regarding temperatures Wednesday through Friday. Rain chances may brush through our southern areas Mon through Wednesday, but the more notable chances for rainfall, including significant rainfall potentially over 1 inch, are expected late in the week.&& .AVIATION /06Z TAFS THROUGH 06Z SUNDAY/... Issued at 1210 AM CDT Sat Apr 4 2026 A line of widespread showers and storms will continue to move east through areas near the Mississippi River through 07z, before ending, and behind the cold front west to northwest winds of 15 to 20 kts will increase, and cigs will drop to IFR levels between 500 and 1000 ft the rest of the night and morning hours Saturday. A cool, cloudy, breezy Saturday is forecast, with cigs gradually lifting to MVFR levels through the day. Wind gusts could exceed 30 kts at times during the day from the northwest. && .AVIATION /12Z TAFS THROUGH 12Z SUNDAY/... Issued at 620 AM CDT Sat Apr 4 2026 Surface low continues to track northeast out of the area this morning, which has an expansive stratus deck draped over the area. Currently, cigs are quite variable, but generally between 500-1500 ft. As we progress through the day, we will see cigs gradually lift, with terminals becoming VFR around 20z. From there, the stratus deck will continue to lift and scatter out through tonight. Winds will remain quite gusty and out of the west through the day, with some terminals already seeing gusts upwards to 25-30 KTs. By 15-18z, much of the area will see sustained winds between 15-20 KTs with gusts upwards to 30 KTs. Winds will start to gradually decrease in speed after 00z this evening, yet still remain breezy through the night. && .DVN WATCHES/WARNINGS/ADVISORIES... IA...None. IL...None. MO...None. && SHORT TERM...Ervin LONG TERM...Ervin AVIATION...Gunkel
Hazardous weather outlook, Apr 4, 3:09 AM CDT, 7 hours 6 minutes before
Hazardous Weather Outlook National Weather Service Quad Cities IA IL 309 AM CDT Sat Apr 4 2026 IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007- 009-015>018-024>026-034-035-MOZ009-010-050815- 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- 309 AM CDT Sat Apr 4 2026 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 No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed today or tonight.
In the hours before
Local storm report, Apr 4, 8:28 AM CDT, 1 hour 47 minutes before
Preliminary Local Storm Report
National Weather Service Quad Cities IA IL
828 AM CDT Sat Apr 4 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0827 AM Rain 3 ENE Garden Plain 41.81N 90.08W
04/04/2026 M1.80 Inch Whiteside IL Trained Spotter
Rainfall from overnight.
&&
12The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 4, 10:15 AM CDT | River Flood Warning | DVN | Henry, Rock Island, Whiteside | 4 days |
Nearby
River Flood Warnings in Illinois, 2026Every river flood warning in 2026
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.