Quad Cities, IA/IL

Weather Forecast Office

Tornado Damage Surveys / Event Summary September 3, 2018

Overview

Scattered showers and thunderstorms developed across eastern Iowa, northwest Illinois, and northeast Missouri during the afternoon and evening of Monday, September 3, as an upper level disturbance tracked across the region. One thunderstorm intensified into a supercell, and produced a few tornados as it tracked across Benton and Linn counties during the late afternoon and early evening. Another storm produced a tornado on the west northwest side of Cedar Rapids shortly after 9 PM CDT.

Additional Event Summaries:

SPC

WPC Surface Fronts/Pressure Loop

Tornado
Photos & Video
Radar
Storm Reports
Rainfall
Environment

Tornado 1 - West side Cedar Rapids, IA
Linn County

Date	SEP 03 2018
Time (Local)	907-910 PM CDT
EF Rating	EF-1
Est. Peak Winds	100 MPH
Path Length	1.4 MILES
Max Width	30 YARDS
Injuries/Deaths	0 / 0
Summary: A tornado touched down near E Ave. NW in the northwest portion of Cedar Rapids, around 907 pm Monday evening. The tornado moved northeast through residential neighborhoods. The tornado destroyed a garage, uprooted and snapped large trees and power poles, and caused minor damage to roofs. The tornado lifted near the intersection of 29th St. NW and Q Ave. NW around 910 pm. The storm also caused straight line wind damage at a business near the intersection of Collins Road NE and I-380. Winds estimated around 80 mph caused a partial collapse of a metal pole barn.

Track Map

Tornado 2 - 2 NW Alburnett, IA
Linn County

Date	SEP 03 2018
Time (Local)	529-536 PM CDT
Est. Peak Winds	110 MPH
Path Length	2.5 MILES
Max Width	100 YARDS
Injuries/Deaths	0 / 0
Summary: An EF1 tornado touched down north of Alburnett, IA damaging mostly trees, crops, and some siding on one house.

Track Map

Tornado 3 - 4 SSW Vinton, IA
Benton County

Date	SEP 03 2018
Time (Local)	440 PM CDT
Est. Peak Winds	80 MPH
Path Length	0.01 MILES
Max Width	20 YARDS
Injuries/Deaths	0 / 0
Summary: An EF0 tornado was observed by a storm spotter about 4 miles south southwest of Vinton. The tornado briefly touched down with no visible damage.

Track Map

Tornado 4 - 4 SSE Vinton, IA
Benton County

Date	SEP 03 2018
Time (Local)	446 PM CDT
Est. Peak Winds	80 MPH
Path Length	0.01 MILES
Max Width	20 YARDS
Injuries/Deaths	0 / 0
Summary: An EF0 tornado was observed by Emergency Management about 4 miles south southeast of Vinton. The tornado briefly touched down with no visible damage.

Track Map

The Enhanced Fujita (EF) Scale classifies tornadoes into the following categories:

EF0 Weak 65-85 mph	EF1 Moderate 86-110 mph	EF2 Significant 111-135 mph	EF3 Severe 136-165 mph	EF4 Extreme 166-200 mph	EF5 Catastrophic 200+ mph


Alburnett, IA NWS Damage Survey	Alburnett, IA NWS Damage Survey	Alburnett, IA NWS Damage Survey


Alburnett, IA NWS Damage Survey	Alburnett, IA NWS Damage Survey	Alburnett, IA NWS Damage Survey

Radar Loop - Courtesy Iowa Environmental Mesonet

Storm Reports

Interactive Storm Report Map	SPC Storm Reports

Rain Reports

Local Rainfall Map	Regional Estimated Rainfall


24 hour precipitation reports (in Inches), for eastern Iowa, northwest and west central Illinois, and northeast Missouri. Reported between Midnight and 9 AM, Monday September 03, 2018. ....IOWA.... Center Point 0.6 NNW 3.13 Muscatine 2N 2.34 Cedar Rapids 3.4 NW 2.23 Anamosa 3 SSW 2.12 De Witt 1.85 Cascade 1.81 Goose Lake 6.4 SSW 1.80 Central City 6.7 W 1.77 Davenport 0.9 WNW 1.52 Amana 4.7 W 1.48 Manchester 1.42 Dubuque #3 7 SW 1.40 Cedar Rapids 2.7 NE 1.35 Mount Auburn 2.2 NNW 1.34 Washington 1.25 Belle Plaine 1.23 Dubuque LD11 1.21 Guttenberg Dam 10 1.18 Marion 1.7 NNW 1.17 Waterloo ASOS 5 NW 1.12 Park View 0.2 WSW 1.03 Hopkinton 5.4 WSW 1.00 Toledo 3 N 0.98 Marengo 2.6 SSW 0.91 Strawberry Point 0.90 Ainsworth 7.4 N 0.88 Davenport 2.9 W 0.86 Ely 0.5 SE 0.82 Hampton 1 N 0.78 Eldridge 0.7 SSW 0.76 Eldridge 0.6 ESE 0.70 Davenport Arpt 5 N 0.69 Bettendorf 1.6 WSW 0.68 NWS Johnston* 5 NNW 0.67 Coggon 0.67 Cedar Rapids Arpt 5 SW 0.66 New London 1.5 SW 0.60 Mason City* 0 E 0.60 Bellevue LD12 0.55 Bloomfield 1 NW 0.54 Brighton 0.53 Davenport 0.9 SSW 0.53 Bettendorf 2.2 SE 0.51 Oelwein AWOS 0.48 Perry 0 W 0.46 Maquoketa 4W 0.46 Kalona 7.3 NNW 0.45 Dubuque Arpt 7 SW 0.41 Keosauqua 0.40 Salem 3.1 ESE 0.39 Delmar 2.3 NW 0.35 Beaconsfield 1 NNE 0.28 Mason City ASOS 6 W 0.28 Salem 1S 0.24 Williamsburg 0.24 Lowden 0.21 Marshalltown ASOS 4 N 0.21 Boone 1 SSW 0.19 North English 0.17 Iowa City 0.16 Marshalltown 1 NW 0.15 Donnellson 0.15 Grinnell AWOS 2 SSW 0.15 Rathbun Reservoir 2 N 0.15 Ottumwa ASOS 6 NNW 0.14 Iowa City Arpt 0.13 Parnell 0.1 SSW 0.12 Fairfield 0.08 Pella 4 N 0.06 Oskaloosa AWOS 9 ESE 0.05 Burlington Arpt 2 SW 0.04 Pella AWOS 2 WSW 0.03 Keokuk LD19 0.02 Burlington 6.5 SSW 0.00 ....ILLINOIS.... Roscoe 2SE 2.45 Freeport 2.15 Shannon 0.2 S 1.79 Chadwick 2.7 WSW 1.74 Ill. City LD16 3 WNW 1.72 Mundelein 1.53 Rochelle 1.45 Coleta 1.4 SSW 1.39 Morrison 3.2 E 1.35 Rockford ASOS 1.27 Davis 0.5 N 1.25 Quad City Arpt 3 S 1.21 Pearl City 0.4 SW 1.20 Freeport 2.0 NW 0.97 Moline 0.7 NNE 0.96 Orangeville 2.8 NW 0.92 New Boston LD17 0.81 Winslow 4.3 ESE 0.78 Galena 0.68 Steward 0.67 Aledo 0.4 NE 0.41 Coal Valley 1.9 SE 0.41 New Windsor 2.0 N 0.41 Aledo 0.37 Princeton 1.1 SE 0.25 Princeton 0.25 Alexis 1 SW 0.24 Tiskilwa 2.1 N 0.20 Paw Paw 1 E 0.18 Geneseo 2.0 NW 0.18 Gladstone LD18 0.10 Kewanee 1 E 0.05 Romeoville 0.00 Peoria ASOS 0.00 Ottawa 4 SW 0.00 Decatur Airport 0.00 Bentley 0.00 La Harpe 0.00 Jacksonville AWOS 0.00 Rochelle AWOS 0.00 Quincy Dam 21 0.00 Colchester 3.5 NE 0.00 Joliet 0.00 Quincy ASOS 0.00 St Anne 0.00 Bloomington Airport 0.00 Galesburg Arpt 3 SW 0.00 Lincoln NWS 0.00 ....MISSOURI.... Memphis 0.43 Kirksville ASOS 0.05 Canton LD20 0.02 Chillicothe 2 NW 0.01 Columbia 0.00 ....WISCONSIN.... Allenton-WWTP .6 NW 2.51 Beloit-College 1.18 Darlington 1.14 Whitewater 1.05 Viroqua 0.76 Steuben 4SE 3 NE 0.69 Brodhead 1 SW 0.65 Prairie du Chien AWOS 0.63 Madison-ASOS 0.43 La Crosse WFO 0.39 Watertown-AWOS 0.00 ....MINNESOTA.... Preston 0.80 Theilman 1SSW 0.00

Environment


Figure 1: SPC Day 1 Outlook (2000z)	Figure 2: SPC Day 1 Tornado Outlook (2000z)	Figure 3: SPC Day 1 Wind Outlook (2000z)	Figure 4: SPC Day 1 Hail Outlook (2000z)


Figure 5: DVN Sounding 9/3/18 12z	Figure 6: DVN Sounding 9/4/18 00z

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