Quad Cities, IA/IL

Weather Forecast Office

Tornadoes, Damaging Winds and Hail: August 19-20, 2022

Event Overview

Cold core low moved over the area, dragging along a weak and slow moving surface low pressure. While weak, sufficient low level and upper forcing aided in developing strong to severe storms. While instability was more than sufficient, the shear was lacking, but was enough to help develop a few supercell thunderstorms. Due to the weak forcing overall and the slow moving nature of the storms, some storms anchored over locations for an extended period of time, resulting in Flash Flooding. Some repeated storms over the same area also led to similar results. Severe weather reports were mostly in the form of hail, as these storms produced hail very efficiently. Some hail reaching 1.5", with some isolated reports of damaging winds.

This event not only impacted the area on 8/19, but due to little movement of the system as a whole, repeated events were seen the following day, on 8/20. Storm action generally hovered over counties along and east of the Mississippi River on the second day. 8/20 was filled with many mini supercells, where many led to funnel clouds. Along with the funnel clouds, some reports of brief tornadoes were received.

Surface Map on August 20th

Tornado
Radar
Storm Reports
Environment

Tornado Information

1.0 NW Scotch Grove, IA
Jones County IA

Date	08/20/2022
Time (Local)	12:20-12:21 PM CDT
EF Rating	EF-U
Est. Peak Winds	Unknown
Path Length	Unknown
Max Width	Unknown
Injuries/Deaths	0/0
Summary Jones County EM reported that county law enforcement personnel were following a mini supercell that had produced funnel clouds. A funnel cloud eventually touched down and law enforcement reported some damage to crops at this location. Tornado is rated as an EF-U.

Track Map

EF-Scale

KMZ File (For Google Earth or Map Program) Here

2.0 SSE Mannon, IL
Mercer County IL

Date	08/20/2022
Time (Local)	1:17-1:18 PM CDT
EF Rating	EF-U
Est. Peak Winds	Unknown
Path Length	Unknown
Max Width	Unknown
Injuries/Deaths	0/0
Summary Chaser reported that funnel clouds lasted 2 minutes at this location and eventually touched down briefly. Photo and eye-witness evidence of brief ground based ration. Tornado is rated as an EF-U.

Track Map

EF-Scale

KMZ File (For Google Earth or Map Program) Here

1.0 NNE Aledo, IL
Mercer County

Date	08/20/2022
Time (Local)	1:55-2:05 PM CDT
EF Rating	EF-U
Est. Peak Winds	Unknown
Path Length	Estimated 2.8 miles
Max Width	Unknown
Injuries/Deaths	0/0
Summary Eyewitness reported along with video and photographic evidence from chasers depicted a sporadic tornado during this time. Reports of minor crop damage associated with this tornado. A follow-up survey found no path associated with this tornado. Based on that, and eye-witness reports, this was a highly sporadic tornado. Times are based on detailed information from chasers. With no damage to rate, this will remain an EF-U.

Track Map

KMZ File (For Google Earth or Map Program) Here

Radar Data

Radar Loop - Courtesy IEM

Storm Reports

Storm Reports - Courtesy IEM

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
515 AM CDT SAT AUG 20 2022

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0746 PM     Heavy Rain       3 N Muscatine           41.46N 91.07W
08/19/2022  U0.00 inch       Muscatine          IA   Amateur Radio    

            Delayed report. Water 3-4 inches deep across 
            Tipton Road. 

0518 PM     Hail             1 ESE Vinton            42.16N 92.01W
08/19/2022  E0.25 inch       Benton             IA   Public           

             

0724 PM     Hail             Lanark                  42.10N 89.83W
08/19/2022  E0.25 inch       Carroll            IL   Trained Spotter  

            Pea sized hail occurring for the past 5 
            minutes. 

0820 PM     Hail             1 SSW Muscatine Municip 41.35N 91.16W
08/19/2022  E0.25 inch       Muscatine          IA   Trained Spotter  

            Delayed report. Lasted 10 minutes. 

0902 PM     Hail             Monticello              42.24N 91.19W
08/19/2022  E0.25 inch       Jones              IA   Public           

            Occurring right now with heavy winds. 

0904 PM     Hail             3 SSW Center Junction   42.08N 91.11W
08/19/2022  E0.25 inch       Jones              IA   Trained Spotter  

            Delayed report. Pea sized hail for a couple 
            of minutes with heavy rain and estimated 40 
            mph wind gusts. 

0623 PM     Hail             2 WNW Letts             41.34N 91.27W
08/19/2022  E0.50 inch       Muscatine          IA   Public           

            Report from mPING: Half-inch (0.50 in.). 

0855 PM     Hail             2 N Monticello          42.26N 91.19W
08/19/2022  E0.50 inch       Jones              IA   Trained Spotter  

             

0741 PM     Hail             2 WSW Freeport          42.28N 89.67W
08/19/2022  E0.70 inch       Stephenson         IL   Public           

            Occurring right now. 

0841 PM     Hail             1 ESE Anamosa           42.10N 91.27W
08/19/2022  E0.70 inch       Jones              IA   Public           

            Delayed report via social media and time 
            estimated from radar. Pea to dime sized 
            hail. 

0818 PM     Hail             3 W Penrose             41.89N 89.73W
08/19/2022  E0.75 inch       Whiteside          IL   Public           

            Delayed report from social media and time 
            estimated from radar. Pea to penny hail 
            covered the ground. 

0736 PM     Hail             Lanark                  42.10N 89.83W
08/19/2022  E0.88 inch       Carroll            IL   Public           

            Occurring right now. 

0503 PM     Hail             3W Vinton               42.22N 91.88W
08/19/2022  E1.00 inch       Benton             IA   Trained Spotter  

            Corrects previous hail report from Urbana. 
            Delayed report. 

0707 PM     Hail             2 SSW Muscatine Municip 41.35N 91.16W
08/19/2022  E1.00 inch       Muscatine          IA   Public           

            Report from mPING: Quarter (1.00 in.). 

0724 PM     Hail             Conesville              41.38N 91.35W
08/19/2022  E1.00 inch       Muscatine          IA   Fire Dept/Rescue 

            Via amatuer radio. Occurring right now. 

0733 PM     Hail             2 N Pekin               41.19N 92.17W
08/19/2022  E1.00 inch       Keokuk             IA   Trained Spotter  

            Hail falling the past 10 minutes with most 
            stones pea to nickel size. 

0703 PM     Hail             Conesville              41.38N 91.35W
08/19/2022  E1.50 inch       Muscatine          IA   Amateur Radio    

            Reported relayed be ARES from fire chief. 
            Time shortly after 7PM. 

0922 PM     Heavy Rain       1 SSW Muscatine Municip 41.35N 91.16W
08/19/2022  M1.50 inch       Muscatine          IA   Trained Spotter  

            Occurred over a 2 hour period. 

1051 PM     Heavy Rain       1 NNW Mount Carroll     42.11N 89.98W
08/19/2022  M2.25 inch       Carroll            IL   Trained Spotter  

            Occurred 1012 to 1045 PM. 

0845 PM     Tstm Wnd Gst     Morley                  42.01N 91.24W
08/19/2022  E65 MPH          Jones              IA   Fire Dept/Rescue 

            Wind gust estimated by Morley Fire Chief. 

0700 PM     Tstm Wnd Dmg     2 N Conesville          41.40N 91.35W
08/19/2022                   Muscatine          IA   Law Enforcement  

            Delayed report Via amateur radio. Trees down 
            blocking the road on the north side of 
            Conesville. 

0846 PM     Tstm Wnd Dmg     Muscatine               41.42N 91.07W
08/19/2022                   Muscatine          IA   Law Enforcement  

            Tree down on fletcher. Time estimated from 
            radar. 

0905 PM     Flash Flood      Conesville              41.38N 91.35W
08/19/2022                   Muscatine          IA   Public           

            Several yards and alleyways with water up to 
            a foot deep on the south side of Conesville.

0425 PM     FUNNEL CLOUD     LISBON                  41.92N 91.39W
08/20/2022                   LINN               IA   FIRE DEPT/RESCUE 

            FUNNEL CLOUD SIGHTED NEAR LISBON. 

0315 PM     FUNNEL CLOUD     4 S ANNAWAN             41.34N 89.90W
08/20/2022                   HENRY              IL   TRAINED SPOTTER  

            BRIEF FUNNEL CLOUD OBSERVED OFF TO THE SOUTH 
            OF THIS LOCATION. 

0250 PM     FUNNEL CLOUD     2 W STANWOOD            41.89N 91.19W
08/20/2022                   CEDAR              IA   LAW ENFORCEMENT  

            FUNNEL CLOUD THIRD OF WAY DOWN FROM CLOUD 
            BASE THEN RETREATED. 

0245 PM     HAIL             3 WSW MC NABB           41.16N 89.26W
08/20/2022  E1.00 INCH       PUTNAM             IL   TRAINED SPOTTER  

            REPORT OF ESTIMATED PENNY TO QUARTER SIZE 
            HAIL. 

0205 PM     TORNADO          3 NW VIOLA              41.24N 90.69W
08/20/2022                   MERCER             IL   TRAINED SPOTTER  

            TRAINED SPOTTER REPORTED MULTI VORTEX 
            TORNADO IN CORN FIELD KICKING UP SOME 
            DEBRIS. STARTED TO BECOME RAIN WRAPPED AGAIN 
            AT END OF REPORT. 

0155 PM     TORNADO          2 N ALEDO               41.22N 90.74W
08/20/2022                   MERCER             IL   STORM CHASER     

            STORM CHASERS REPORTED A BRIEF TOUCHDOWN 
            NEAR ALEDO, BUT QUICKLY GOT RAIN WRAPPED. NO 
            DAMAGE REPORTED AT THIS TIME. 

0117 PM     FUNNEL CLOUD     3 SSE MANNON            41.20N 90.93W
08/20/2022                   MERCER             IL   TRAINED SPOTTER  

            TRAINED SPOTTER REPORTS A FUNNEL CLOUD, 
            WHERE PHOTOS SHOW A POTENTIAL BRIEF 
            TOUCHDOWN. HAS SINCE LIFTED. NO DAMAGE 
            REPORTS AT THIS TIME. 

1220 PM     TSTM WND DMG     1 NNW SCOTCH GROVE      42.19N 91.11W
08/20/2022                   JONES              IA   EMERGENCY MNGR   

            EM RELAYED POSSIBLE TORNADO TOUCHDOWN, 
            DAMAGE TO CROPS. WILL INVESTIGATE FURTHER. 

1205 PM     FUNNEL CLOUD     2 NE CENTER JUNCTION    42.14N 91.06W
08/20/2022                   JONES              IA   EMERGENCY MNGR   

            FUNNEL CLOUD REPORTED VERY CLOSE TO THE 
            GROUND. RELAYED BY LOCAL EM.

Photos & Video

Header

Discussions / Environmental Information


Figure 1: 12z 08/19 DVN Sounding	Figure 2: 00z 08/20 DVN Sounding	Figure 3: SPC Outlook 8/19

Figure 4: SPC Severe Thunderstorm Watch - 8/19	Figure 5: SPC Tornado Threat - 8/19	Figure 6: SPC Damaging Wind Threat - 8/19

Figure 7: SPC Hail Threat - 8/19	Figure 8: 12z 08/20 DVN Sounding	Figure 9: 8/20 Mesoscale Discussion

Figure 10: SPC Outlook - 8/20	Figure 11: SPC Tornado Threat - 8/20	Figure 12: SPC Damaging Wind Threat - 8/20

Media use of NWS Web News Stories is encouraged!
Please acknowledge the NWS as the source of any news information accessed from this site.