Tornadoes · United States · Iowa · 2022

EF1 tornado, West Lake Park, Iowa, March 5, 2022

This EF1 tornado ran 4.1 miles across Scott County on March 5, 2022, touching down at 8:37 PM CST and reaching 300 yards wide. It killed nobody.

The rating scale

Tracks are drawn in the color of the rating. The Enhanced Fujita scale rates the damage rather than measuring the wind: the speeds are what that damage is taken to imply.

  1. EF065 to 85 mph

    Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.

  2. EF186 to 110 mphthis tornado

    Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.

  3. EF2111 to 135 mph

    Considerable damage. Roofs torn off well-built houses, frame homes shifted on their foundations, mobile homes destroyed, large trees snapped or uprooted, cars lifted off the ground.

  4. EF3136 to 165 mph

    Severe damage. Whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, trees debarked, heavy cars lifted and thrown.

  5. EF4166 to 200 mph

    Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.

  6. EF5over 200 mph

    Incredible damage. Strong frame houses swept off their foundations, car-sized missiles thrown more than 100 meters, steel-reinforced concrete badly damaged, high-rise buildings deformed.

  7. Unrated

    The survey recorded a tornado but could not put a number on it, most often because it crossed open country and damaged nothing a rating can be read from.

The record

Rating
EF1
Date
March 5, 2022
Touchdown
8:37 PM CST (02:37 UTC)
Lifted
8:41 PM CST (02:41 UTC)
On the ground
4 minutes
Path length
4.1 miles (6.6 km)
Path width
300 yards (274 m)
Deaths
0
Injuries
0
County
Scott County
Touchdown point
41.535, -90.703
Lift-off point
41.569, -90.638
Record number
2203052037-01

The damage survey

9 damage points were recorded along this path by NWS DVN, in the Damage Assessment Toolkit the survey teams carry. The strongest indicator was rated EF1. The highest wind the damage implies is 100 mph.

  • start of path. several outbuildins damaged destroyed. boards impaled roof and barn walls. Small tree trunks.
  • T2 point5. trees snapped. Roofing destroyed, became missles.

Survey points are preliminary and are the raw material the published rating was built from. Source: NWS Damage Assessment Toolkit.

What the Weather Service recorded

Severe thunderstorms tracked across all of eastern Iowa during the late afternoon and evening of Saturday March 5, 2022. Thunderstorms initially developed in southwest Iowa, and moved across central Iowa during the afternoon hours before reaching, our area after 600 PM. Initially, storms produced large hail and tornadoes over central Iowa, before the threat evolved more into damaging winds and tornadoes as storms moved into eastern Iowa and northwest Illinois. Winds around 60-75 MPH were reported from trained spotters and first responders, with confirmed reports of damage in some locations. EF-1 tornadoes occurred near Davenport and Vinton.

An EF-1 tornado produced intermittent damage along a roughly 4 mile path. The peak estimated winds were 90 to 95 MPH with a maximum width of 300 yards. The most significant damage was noted at a farmstead on 160th Street, east of 100th Avenue, where several outbuildings were damage or destroyed, and trees were damaged or snapped. Boards were also impaled into the roof and walls of a barn. Additional damage was noted at a farmstead on Utah Avenue north of Duck Creek. Several outbuildings were damaged with some losing roof panels and damaging other structures. Tree damage was noted with several trees uprooted or snapped. A wood plank was driven into the ground. Primarily intermittent tree damage was noted along the remainder of the track, with large branches down or trees snapped.

A NWS Storm Survey found that a brief weak tornado damaged a shed and some trees. The peak estimated wind speed is 65 MPH.

From NOAA NCEI's Storm Events Database, the narrative the local forecast office wrote for Storm Data.

The warnings

2 minutes of warning. NWS DVN issued a tornado warning for this county at 02:35 UTC, 2 minutes before the tornado touched down, in force until 03:00 UTC.

The county was under a tornado watch, issued at 00:10 UTC and running to 03:54 UTC.

Issued (UTC)ExpiredProductOffice
00:00 UTC12:00 UTCWind AdvisoryDVN
00:10 UTC03:54 UTCTornado WatchDVN
02:26 UTC03:15 UTCSevere Thunderstorm WarningDVN
02:35 UTC03:00 UTCTornado WarningDVN
02:52 UTC03:08 UTCTornado WarningDVN

Every warning and watch covering the touchdown point that day, from the Iowa Environmental Mesonet's archive of National Weather Service products. Lead time is measured from the issue of the warning in force to the touchdown time in the database, both of which were recorded to the minute by different people.

The forecast that day

The Storm Prediction Center had this point in a Enhanced Risk, with a 0.05 chance of a tornado within 25 miles. The outlook in force was issued at 00:43 UTC.

SPC's Day 1 convective outlook as it stood when the tornado began, read at the touchdown point. The same archive is on the radar archive.

The air that afternoon

The radiosonde launches on either side of the tornado, from the nearest station that was launching then, drawn and analyzed the way Storm Lab does: the same diagram, the same parcel and shear definitions SPC's mesoanalysis uses.

Davenport, (KDVN), 00:00Z

2.6 hours before the tornado, 16 km from the path. March 6, 2022.

Skew-T log-pSkew-T log-p diagram, Davenport, at 00:00Z on 2022-03-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 39 joules per kilogram, CIN -142, lifted condensation level 932 meters above ground. Wind barbs in knots down the right edge.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed. The warm shading is its CAPE, the cool shading the inhibition it has to break through.
HodographHodograph, Davenport, at 00:00Z on 2022-03-06The wind through the lowest 10 kilometers as a curve, rings every 10 meters per second labeled in knots. Zero to 1 km storm-relative helicity 273 square meters per square second, 0 to 6 km bulk shear 78 knots.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km. RM and LM are the right and left moving storms Bunkers' method gives; the shaded area is the 0 to 1 km storm-relative helicity.
Mixed-layer CAPE
39 J/kg
Mixed-layer CIN
-142 J/kg
Surface CAPE
9 J/kg
Mixed-layer LCL
932 m above ground
0-6 km bulk shear
78 kt
0-1 km bulk shear
29 kt
0-1 km storm-relative helicity
273 m²/s²
0-3 km storm-relative helicity
395 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1
0-3 km lapse rate
5.5 K/km

Open this sounding in Storm Lab

Davenport, (KDVN), 12:00Z

9.4 hours after it, 16 km from the path. March 6, 2022.

Skew-T log-pSkew-T log-p diagram, Davenport, at 12:00Z on 2022-03-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 0 joules per kilogram, CIN -105103, lifted condensation level 596 meters above ground. Wind barbs in knots down the right edge.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed. The warm shading is its CAPE, the cool shading the inhibition it has to break through.
HodographHodograph, Davenport, at 12:00Z on 2022-03-06The wind through the lowest 10 kilometers as a curve, rings every 10 meters per second labeled in knots. Zero to 1 km storm-relative helicity -173 square meters per square second, 0 to 6 km bulk shear 70 knots.1939587897117136Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km. RM and LM are the right and left moving storms Bunkers' method gives; the shaded area is the 0 to 1 km storm-relative helicity.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
-105103 J/kg
Surface CAPE
4 J/kg
Mixed-layer LCL
596 m above ground
0-6 km bulk shear
70 kt
0-1 km bulk shear
25 kt
0-1 km storm-relative helicity
-173 m²/s²
0-3 km storm-relative helicity
-37 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
1.3 K/km

Open this sounding in Storm Lab

The radar

The Quad Cities radar (KDVN), 10 km away, was scanning. The volume nearest the touchdown began at 02:37 UTC.

Open the radar archive at this moment, over the track

Reflectivity and velocity, decoded from the Level II archive in the browser. Volumes take a few seconds to open the first time.

What was reported nearby

Local storm reports within 60 km of the path, in the three hours either side.

Time (UTC)ReportWhereCountyRemark
02:15 UTCTSTM WND GST 56Muscatine MunicipalityMuscatine, IAIADOT AWOS.
02:18 UTCHAIL 0.254 Sse MoscowMuscatine, IA
02:20 UTCHAIL 0.252 Nnw MuscatineMuscatine, IA
02:22 UTCTSTM WND GST 654 Sse MoscowMuscatine, IA
02:22 UTCHAIL 14 Sse MoscowMuscatine, IA
02:37 UTCTORNADO2 Nw West Lake ParkScott, IAA TORNADO PRODUCED INTERMITTENT DAMAGE ALONG A ROUGHLY 4 MILE PATH. THE MOST SIGNIFICANT DAMAGE WAS NOTED AT A FARMSTEAD ON 160TH STREET EAST OF 100TH AVENUE WHERE SEVERAL OUTBUILDINGS WERE DAMAGED OR DESTROYED, AND TREE
02:37 UTCTORNADO2 Wnw West Lake ParkScott, IAA BRIEF WEAK TORNADO TOUCHED DOWN DAMAGING A SHED AND SOME TREES.
02:45 UTCTSTM WND DMG2 Ssw Davenport MunicipScott, IADELAYED REPORT. HOUSING FOR TRAFFIC LIGHTS AT THE INTERSECTION OF DIVISION AND 76TH STREETS WERE PHYSICALLY TURNED BY THUNDERSTORM WINDS.
02:46 UTCTSTM WND GST 62Davenport MunicipalityScott, IAREPORTED ON RSOIS AT NWS OFFICE.
02:46 UTCTSTM WND GST 70Davenport MunicipalityScott, IACORRECTS PREVIOUS TSTM WND GST REPORT FROM DAVENPORT MUNICIPALITY. REPORTED ON RSOIS AT NWS OFFICE.
02:47 UTCHAIL 0.25Davenport MunicipalityScott, IAOCCURRING RIGHT NOW AT NWS OFFICE.
02:50 UTCTSTM WND DMG2 W BettendorfScott, IASIDING REMOVED FROM HOUSE DUE TO THE HIGH WINDS.
03:02 UTCTSTM WND GST 64Clinton MunicipalityClinton, IAAWOS.
03:03 UTCHAIL 0.53 S Mount JoyScott, IA

From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.

This ground now

The live radar over the trackEvery 2022 tornado in IowaEvery tornado in Iowa since 1950Warnings in force in Iowa nowThe forecast where you are

The other tornadoes of March 5, 2022

18 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
March 53:02 PM CSTEF0Montgomery, IA0.017
March 53:38 PM CSTUnratedAdams, IA1.540
March 54:01 PM CSTEF0Adams, IA2.8100$10,000
March 54:26 PM CSTEF4Winterset tornado, IA70.690065$220 million
March 55:07 PM CSTEF2Decatur, IA19.4300$600,000
March 55:20 PM CSTUnratedDecatur, IA2.160
March 55:28 PM CSTUnratedLucas, IA2.160
March 55:33 PM CSTEF3Lucas, IA11.335011$1.5 million
March 55:38 PM CSTEF2Wayne, IA9.9300$300,000
March 55:40 PM CSTEF0Lucas, IA0.360
March 56:04 PM CSTEF2Jasper, IA17.3500$506,000
March 56:33 PM CSTEF2Tama, IA8.5200$200,000
March 57:10 PM CSTEF1Benton, IA14.0400
March 58:37 PM CSTEF0Scott, IA0.125
March 59:13 PM CSTEF1Whiteside, IL4.050
March 59:48 PM CSTEF1Dane, WI6.050$50,000
March 510:11 PM CSTEF0Mason, IL6.950
March 510:57 PM CSTEF1Montgomery, IL3.940$50,000

What this means

Ratings are the survey's, read off the damage rather than measured; the rating scale is above. Tornado counts rise through the record as reporting improved, so a year in the 1950s is not comparable with one today except for the strongest tornadoes, which were always noticed.

Sources

NOAA Storm Prediction Center tornado database, 1950-2025, the official record kept by NOAA's Storm Prediction Center.