Overview
During this stretch of severe weather, the NWS Quad Cities went seven consecutive days issuing severe weather warnings (from August 9-15). This tied our office's record of the longest stretch of days with issuing at least one severe weather warning (June 2-8, 2008). This was about as active of a week as we can have!
Statistics courtesy of Daryl Herzmann from the Iowa Environmental Mesonet.
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| More on the "Ring of Fire" pattern from August 9-15, 2026. | Radar snapshots from the mornings of August 11-13, 2026. |
August 9th Evening Supercells
Select a tornado from the table to zoom into the track and view more information. The default table view is limited to 8 tracks, but can be scrolled by a mouse wheel or dynamically expanded. Additionally, the table can fill the entire window by clicking the small circular expanding arrow icon at the very top right of the table and returned to its original size by clicking the button again. The side information panel that opens over the map can be closed using the "X" on the upper right corner of the pop-up. Zoom into the map and click damage points to see detailed information and pictures from the surveys.
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| Summary of the August 9th tornadoes over Henry county, Illinois |
August 11th Derecho
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| August 11th Derecho hourly time step radar images (courtesy of NWS Chicago) | Summary of the August 11th derecho, with a map of the reports we received | Summary of the three tornadoes that occurred in Delaware county, Iowa |
August 12th Morning Storms
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| Summary of the August 12th severe storms, which included damaging winds along I-80 to the Quad Cities, and around the New London/Middletown, IA areas |
August 13th-15th Heavy Rainfall
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| Aug 13-14th Rainfall Summary | Aug 14-15th Rainfall Summary |
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| Aug 13-15th 72-Hour Total Rainfall Summary |
...72 HOUR TOTAL RAINFALL REPORTS THROUGH AUG 16...
Location Amount Time/Date
Wapello 0.2 S 8.75 in 0700 AM 08/16
Morning Sun 1.7 E 7.81 in 0800 AM 08/16
Wapello 5.4 SE 7.53 in 0700 AM 08/16
Aledo 7.09 in 0650 AM 08/16
La Harpe 0.7 E 6.48 in 0930 AM 08/16
Colchester 3.5 NE 6.22 in 0635 AM 08/16
Macomb 6.03 in 0700 AM 08/16
Ainsworth 7.4 N 5.92 in 0700 AM 08/16
Fairfield 5.7 NNE 5.77 in 0700 AM 08/16
La Harpe 5.73 in 0800 AM 08/16
MACOMB 5.32 in 0408 PM 08/16
Galva 4.71 in 0800 AM 08/16
Fort Madison 4.5 NNW 4.69 in 0800 AM 08/16
Monmouth 4.67 in 0405 PM 08/16
Washington 6.5 W 4.63 in 0700 AM 08/16
Hayesville 0.2 SW 4.48 in 0800 AM 08/16
New Windsor 2.0 N 4.38 in 0700 AM 08/16
Hillsboro 5.8 SE 4.35 in 0712 AM 08/16
Kewanee 1 E 4.18 in 0700 AM 08/16
Stronghurst 0.4 SSW 4.17 in 0700 AM 08/16
Fairfield 1.4 S 4.03 in 0700 AM 08/16
Burlington 6.5 SSW 3.97 in 0700 AM 08/16
Salem 3.1 ESE 3.90 in 0800 AM 08/16
Danville 2.9 W 3.83 in 0700 AM 08/16
Mount Union 3.6 S 3.74 in 0900 AM 08/16
Macomb Arpt 3.73 in 0355 PM 08/16
Fairfield 3.72 in 0800 AM 08/16
Donnellson 0.2 WSW 3.67 in 0700 AM 08/16
Donnellson 3.64 in 0700 AM 08/16
Galva 2.7 NE 3.64 in 0600 AM 08/16
2 WSW Yarmouth 3.58 in 0700 AM 08/16
Wellman 4.0 E 3.54 in 0700 AM 08/16
Atkinson 2.6 NNE 3.50 in 0800 AM 08/16
Taylor Ridge 1.1 N 3.43 in 0700 AM 08/16
Fairfield 3.42 in 0800 AM 08/16
Sigourney 3.41 in 0600 AM 08/16
0.9 W Wayland 3.41 in 0330 PM 08/16
Parnell 0.1 SSW 2.92 in 0600 AM 08/16
Princeton 1.0 SSW 2.89 in 0700 AM 08/16
Kahoka 2.81 in 0408 PM 08/16
2 W Wayland 2.70 in 0800 AM 08/16
Farmington 3.5 W 2.68 in 0730 AM 08/16
Augusta 2.67 in 0657 AM 08/16
Muscatine 1.4 N 2.67 in 0700 AM 08/16
Farmington 2.4 W 2.66 in 0730 AM 08/16
Quad City Intl Arpt 2.66 in 0352 PM 08/16
Farmington 0.3 NW 2.64 in 0730 AM 08/16
Montrose 4.5 NNW 2.63 in 0518 PM 08/15
Farmington 0.4 NNW 2.62 in 0730 AM 08/16
New London 2.60 in 0400 PM 08/16
Fort Madison Arpt 2.50 in 0355 PM 08/16
3.1 W Oakland Mills 2.50 in 0330 PM 08/16
3 NW Nauvoo 2.49 in 0400 PM 08/16
1 E Williamsburg 2.43 in 0700 AM 08/16
Davenport 0.9 WNW 2.34 in 0639 AM 08/16
Williamsburg 0.6 SW 2.33 in 0800 AM 08/16
Stronghurst 2.21 in 0402 PM 08/16
Nichols 3.6 WSW 2.21 in 0700 AM 08/16
Van Horne 2.1 NNW 2.19 in 0700 AM 08/16
Warsaw 5.8 SE 2.17 in 0700 AM 08/16
Coleta 1.4 SSW 2.13 in 0700 AM 08/16
Observations are collected from a variety of sources with varying
equipment and exposures. We thank all volunteer weather observers
for their dedication. Not all data listed are considered official.
Preliminary Local Storm Report...Summary
National Weather Service Quad Cities IA IL
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1254 AM Tstm Wnd Dmg 1 NW Macomb 40.48N 90.69W
08/15/2026 McDonough IL Trained Spotter
Reported a 4 inch leafy green Sycamore tree
limb down.
0335 AM Flash Flood Macomb 40.46N 90.67W
08/15/2026 McDonough IL Law Enforcement
Several city streets flooded with water over
1 foot deep in spots.
0400 AM Flash Flood 1 N Colchester 40.44N 90.79W
08/15/2026 McDonough IL 911 Call Center
Corrects the time of the previous flash
flood report from 1 N Colchester. Gravel
road washed out near this location on County
Road E 600 and N Hun St.
0739 AM Rain 1 SW Macomb 40.46N 90.69W
08/15/2026 M6.14 Inch McDonough IL Public
0850 AM Rain 5 NW Industry 40.37N 90.67W
08/15/2026 M4.75 Inch McDonough IL Trained Spotter
24 hour total.
0957 AM Rain 2 SE Macomb 40.45N 90.66W
08/15/2026 M5.30 Inch McDonough IL Public
Heavy rain overnight.
0700 AM Rain 2 NE Colusa 40.59N 91.15W
08/15/2026 M2.72 Inch Hancock IL Public
24 hr rainfall total but still getting light
rain. Heavy rain overnight. Area ponds full
and overflowing.
0949 AM Rain 1 SE Wapello 41.17N 91.17W
08/15/2026 M3.20 Inch Louisa IA Trained Spotter
Overnight total.
1139 PM Tstm Wnd Dmg 1 NNW Montrose 40.54N 91.43W
08/14/2026 Lee IA Public
3 inch diameter tree limbs downed.
0400 AM Flash Flood 2 N Fort Madison 40.64N 91.37W
08/15/2026 Lee IA 911 Call Center
Roads were closed north of Fort Madison due
to water over the roadways from area creeks
including 263rd Avenue and 240th Street.
0909 AM Flash Flood 4 WSW Fort Madison 40.61N 91.42W
08/15/2026 Lee IA 911 Call Center
flash flood report from 4 WSW Fort Madison.
Roads closed due to water over the roadway
from area creeks.
0914 AM Rain 1 SW Perlee 41.07N 91.92W
08/15/2026 M2.55 Inch Jefferson IA Trained Spotter
Updated rainfall total.
0847 AM Rain North English 41.51N 92.07W
08/15/2026 E2.60 Inch Iowa IA Public
0706 AM Rain 2 SW Yarmouth 41.01N 91.35W
08/15/2026 M1.58 Inch Des Moines IA Public
1125 AM Rain 5 SE Sperry 40.89N 91.10W
08/15/2026 M1.26 Inch Des Moines IA Public
0128 PM Rain 3 W Adrian 40.52N 91.22W 08/15/2026 M6.09 Inch Hancock IL Trained Spotter
0925 PM Flash Flood 2 NE New Boston 41.19N 90.97W
08/15/2026 Mercer IL Law Enforcement
Law enforcement reports of water over
Highway 17 near New Boston.
0925 PM Flash Flood Grandview 41.28N 91.19W
08/15/2026 Louisa IA Trained Spotter
Street flooding. 2-3 inches of water
covering the street and ditches along the
sides of the road are full.
0944 PM Tstm Wnd Gst Davenport Municipality 41.61N 90.59W 08/15/2026 M56 MPH Scott IA ASOS
0959 PM Tstm Wnd Dmg 1 WSW East Moline 41.51N 90.44W
08/15/2026 Rock Island IL Public
Re-transmission of previous tstm wnd dmg
report from 1 WSW East Moline. Mping of
broken 3 inch tree limbs.
0623 PM Rain 3 WNW Newport 41.75N 91.52W
08/16/2026 M3.81 Inch Johnson IA Trained Spotter
3 day rainfall total.
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