Tornadoes

Tornado #1 - Winterset through Newton Madison/Warren/Polk/Jasper Counties Date March 5, 2022 Time (Local) 4:26pm - 6:00pm EF Rating EF-4 Est. Peak Winds 170 mph Path Length 70.6 miles Max Width 900 yards Injuries/Deaths 5/6 A long track tornado developed just northwest of Macksburg, producing significant damage on the southeast sides of Winterset and Norwalk to the northwest side of Newton, in addition to a number of communities in between. The EF rating has been finalized with a track of over 70 miles which is the longest track since June 1984.  The largest width was estimated at around 900 yards or slightly more than one half mile. Track Map Downloadable KMZ File

Tornado #2 - Garden Grove/Humeston Wayne/Lucas Counties Date March 5, 2022 Time (Local) 5:07pm - 5:33pm EF Rating EF-2 Est. Peak Winds 122 mph Path Length 19.4 miles Max Width 300 yards Injuries/Deaths 0/0 Tornado developed just northeast of Leon and continued northeast, grazing Garden Grove and Humeston before ending southeast of Derby in Lucas County. Track Map Downloadable KMZ File

Tornado #3 - Chariton/Red Haw State Park Tornado Wayne/Lucas Counties Date March 5, 2022 Time (Local) 5:33pm - 5:53pm EF Rating EF-3 Est. Peak Winds 138 mph Path Length 11.3 miles Max Width 350 yards Injuries/Deaths 1/1 Tornado developed as the previous tornado weakened near Derby. The tornado tracked just south Chariton, taking a direct path through Red Haw State Park. Track Map Downloadable KMZ File

Tornado #4 - Allerton/Corydon Wayne County Date March 5, 2022 Time (Local) 5:38pm - 5:51pm EF Rating EF-2 Est. Peak Winds 118 mph Path Length 9.9 miles Max Width 250 yards Injuries/Deaths 0/0 Tornado developed southwest of Allerton and skirted the southwest edge of the community. The tornado then tracked northeast, eventually passing just south and east of Corydon. Track Map Downloadable KMZ File

Tornado #5 - Kellogg Jasper/Poweshiek/Tama Counties Date March 5, 2022 Time (Local) 6:04pm - 6:28pm EF Rating EF-2 Est. Peak Winds 112 mph Path Length 17.3 miles Max Width 400 yards Injuries/Deaths 0/0 The supercell that produced the long track significant tornado went on to produce an additional tornado north starting near Kellogg and ending in southwest Tama county. Track Map Downloadable KMZ File

Tornado #6 - Tama Tama County Date March 5, 2022 Time (Local) 6:33pm - 6:42pm EF Rating EF-2 Est. Peak Winds 115 mph Path Length 8.5 miles Max Width 200 yards Injuries/Deaths 0/0 After the Kellogg tornado dissipated, this tornado formed a few minutes later from the same supercell.  This tornado remained in rural areas south and southeast of Tama dissipating shortly before crossing Highway 30 east of town. Track Map Downloadable KMZ File

Tornado #7 - Cromwell Adams and Union Counties Date March 5, 2022 Time (Local) 4:01pm - 4:05pm EF Rating EF-0 Est. Peak Winds <= 72 mph Path Length 2.8 miles Max Width 100 yards Injuries/Deaths 0/0 Video and high resolution satellite evidence confirmed a brief tornado near Cromwell.  The tornado remained in rural areas with only minor damage to outbuildings and trees. Track Map Downloadable KMZ File

Tornado #8 - Corning Adams County Date March 5, 2022 Time (Local) 3:38pm - 3:40pm EF Rating EF-U Est. Peak Winds Unknown Path Length 1.5 miles Max Width 40 yards Injuries/Deaths 0/0 Video evidence confirmed a brief tornado near Corning. No damage indicators were available to provide a rating. Track Map Downloadable KMZ File

Tornado #9 - Derby Lucas County Date March 5, 2022 Time (Local) 5:26pm - 5:31pm EF Rating EF-1 Est. Peak Winds 100 mph Path Length 3.6 miles Max Width Unknown Injuries/Deaths 0/0 This tornado occurred simultaneously with another tornado ot its southeast. The path remainded in rural southern Lucas County just to the south and east of Derby. EF-1 damage as noted east of Derby to an outbuilding prior to the dissipation of the tornado. Track Map Downloadable KMZ File

Tornado #10 - Chariton satellite Lucas County Date March 5, 2022 Time (Local) 5:40pm - 5:42pm EF Rating EF-0 Est. Peak Winds <=72 mph Path Length 1.9 miles Max Width Unknown Injuries/Deaths 0/0 This was a satellite tornado observed via storm chasing video that developed and rotated around the original tornado about one and a half times before becoming absorbed into the original circulation. Track Map Downloadable KMZ File

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

Storm Reports

Preliminary storm reports. Note that the number of tornado icons on the map below and in the text summary does not equal the number of tornadoes as some tornadoes have multiple reports.

SPC Storm Reports

Click map below to go to an interactive map viewer

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DES MOINES IA
1056 PM CST SAT MAR 5 2022

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

0134 PM     HAIL             3 SE DES MOINES         41.55N 93.57W
03/05/2022  E0.25 INCH       POLK               IA   PUBLIC           

             

0149 PM     HAIL             1 NW COLFAX             41.69N 93.25W
03/05/2022  U0.75 INCH       JASPER             IA   PUBLIC           

            REPORT FROM MPING: DIME (0.75 IN.). 

0206 PM     HAIL             HAVERHILL               41.94N 92.96W
03/05/2022  E1.00 INCH       MARSHALL           IA   PUBLIC           

            SOCIAL MEDIA PICTURE OF QUARTER SIZE HAIL. 

0225 PM     HAIL             1 N CEDAR FALLS         42.53N 92.45W
03/05/2022  E0.50 INCH       BLACK HAWK         IA   PUBLIC           

            SOCIAL MEDIA. 

0340 PM     TORNADO          1 S CORNING             40.98N 94.74W
03/05/2022                   ADAMS              IA   STORM CHASER     

            MULTIPLE REPORTS OF BRIEF TORNADO TOUCHDOWN 
            SOUTH OF CORNING. 

0340 PM     FUNNEL CLOUD     CORNING                 40.99N 94.74W
03/05/2022                   ADAMS              IA   STORM CHASER     

            STORM CHASER REPORT OF FUNNEL CLOUD NEAR 
            CORNING. 

0342 PM     HAIL             1 SE NODAWAY            40.93N 94.88W
03/05/2022  E1.25 INCH       ADAMS              IA   STORM CHASER     

            QUARTER TO PING PONG SIZED HAIL REPORTED 
            SOUTHEAST OF NODAWAY, IOWA. 

0354 PM     HAIL             3 W ORIENT              41.20N 94.47W
03/05/2022  E1.50 INCH       ADAIR              IA   TRAINED SPOTTER  

            HAIL REPORT OF 1.5 INCHES WEST OF ORIENT, 
            IOWA VIA SPOTTERNETWORK SN#52257. 

0355 PM     FUNNEL CLOUD     1 SE CUMBERLAND         41.26N 94.86W
03/05/2022                   CASS               IA   STORM CHASER     

            MULTIPLE STORM CHASER REPORTS OF A FUNNEL 
            CLOUD SE OF CUMBERLAND, IA. 

0355 PM     HAIL             5 NNE PRESCOTT          41.09N 94.58W
03/05/2022  E1.75 INCH       ADAMS              IA   TRAINED SPOTTER  

            HAIL REPORT OF 1.75 INCHES NORTH OF 
            PRESCOTT, IOWA VIA SPOTTERNETWORK SN#52258. 

0406 PM     TORNADO          5 WNW CROMWELL          41.07N 94.54W
03/05/2022                   ADAMS              IA   STORM CHASER     

            STORM CHASER CONFIRMED TORNADO ON GROUND 
            WITH VIDEO AND DAMAGE TO BARN STRUCTURE VIA 
            TWITTER. 

0406 PM     HAIL             4 W ORIENT              41.20N 94.49W
03/05/2022  E1.00 INCH       ADAIR              IA   PUBLIC           

            HAIL REPORT OF 1 INCH VIA SPOTTERNETWORK W 
            OF ORIENT SN#52260. 

0408 PM     HAIL             3 SW ORIENT             41.18N 94.45W
03/05/2022  U1.75 INCH       ADAIR              IA   PUBLIC           

            REPORT FROM MPING: GOLF BALL (1.75 IN.). 

0410 PM     TORNADO          1 NW CROMWELL           41.05N 94.48W
03/05/2022                   ADAMS              IA   STORM CHASER     

            STORM CHASER REPORT OF TORNADO NW OR 
            CROMWELL VIA TWITTER. 

0413 PM     HAIL             3 ENE ORIENT            41.22N 94.36W
03/05/2022  E2.50 INCH       ADAIR              IA   TRAINED SPOTTER  

            SPOTTER REPORT OF ONGOING TENNIS BALL HAIL 
            EAST NORTHEAST OF ORIENT. 

0419 PM     HAIL             1 NW ORIENT             41.21N 94.43W
03/05/2022  E2.00 INCH       ADAIR              IA   STORM CHASER     

            2+ INCH HAIL REPORT VIA STORM CHASER ON 
            TWITTER NW OR ORIENT, IA. 

0422 PM     HAIL             ORIENT                  41.20N 94.41W
03/05/2022  E2.00 INCH       ADAIR              IA   TRAINED SPOTTER  

            TRAINED SPOTTER REPORT OF 2 INCH HAIL IN 
            ORIENT, IA SN#52263. 

0424 PM     FUNNEL CLOUD     6 WSW MACKSBURG         41.19N 94.30W
03/05/2022                   ADAIR              IA   TRAINED SPOTTER  

            TRAINED SPOTTER REPORT OF A FUNNEL CLOUD 6 
            MILES WEST SOUTHWEST OF MACKSBURG, IA 
            SN#52264. 

0428 PM     TORNADO          2 E MACKSBURG           41.21N 94.15W
03/05/2022                   MADISON            IA   STORM CHASER     

            STORM CHASER CONFIRMED TORNADO VIA TWITTER. 

0435 PM     TORNADO          WINTERSET               41.34N 94.02W
03/05/2022                   MADISON            IA   TRAINED SPOTTER  

            TORNADO ONGOING WITH DEBRIS S OF WINTERSET - 
            MULTIPLE REPORTS VIA TRAINED SPOTTER AND 
            EMERGENCY MANAGERS. 

0435 PM     TORNADO          2 SW WINTERSET          41.31N 94.05W
03/05/2022                   MADISON            IA   TRAINED SPOTTER  

            TRAINED SPOTTER REPORTS LARGE TORNADO ON THE 
            GROUND SOUTHWEST OF WINTERSET, APPROACHING 
            TIME. DEBRIS VISIBLE. LOCATION ESTIMATED. 

0447 PM     TORNADO          2 SSW WINTERSET         41.31N 94.04W
03/05/2022                   MADISON            IA   TRAINED SPOTTER  

            TORNADO DAMAGE REPORT VIA SPOTTER NETWORK - 
            HOMES AND TREES DAMAGED AND A GARAGE WAS 
            DESTROYED ON 169 (SN#52265). 

0448 PM     TORNADO          2 SSW WINTERSET         41.31N 94.03W
03/05/2022                   MADISON            IA   STORM CHASER     

            TORNADO DAMAGE IN WINTERSETT TO SHED 
            REPORTED VIA TWITTER. 

0449 PM     HAIL             ORIENT                  41.20N 94.42W
03/05/2022  E2.75 INCH       ADAIR              IA   STORM CHASER     

            STORM CHASER REPORT OF BASEBALL SIZE HAIL 
            ACCOMPANIED WITH SIGNIFICANT DAMAGE TO 
            VEHICLES VIA TWITTER. 

0449 PM     HAIL             4 SW EARLHAM            41.46N 94.19W
03/05/2022  U1.00 INCH       MADISON            IA   PUBLIC           

            REPORT FROM MPING: QUARTER (1.00 IN.). 

0450 PM     TORNADO          1 WSW WINTERSET         41.33N 94.04W
03/05/2022                   MADISON            IA   TRAINED SPOTTER  

            TORNADO DAMAGE REPORT VIA SPOTTER NETWORK - 
            BARNS DESTROYED AND HOUSES BADLY DAMAGED IN 
            WINTERSET (SN#52266). 

0451 PM     TORNADO          2 ESE WINTERSET         41.33N 93.98W
03/05/2022                   MADISON            IA   TRAINED SPOTTER  

            TORNADO DAMAGE REPORTED VIA SPOTTER NETWORK 
            - TREE DAMAGE AND MINOR DAMAGE TO A HOME AT 
            THIS LOCATION. (SN#52267). 

0455 PM     HAIL             1 W WEST DES MOINES     41.57N 93.77W
03/05/2022  E0.25 INCH       POLK               IA   TRAINED SPOTTER  

            PEA SIZED HAIL REPORT VIA TRAINED SPOTTER 
            PK1011. 

0500 PM     TORNADO          1 SSE WINTERSET         41.32N 94.01W
03/05/2022                   MADISON            IA   TRAINED SPOTTER  

            TORNADO DAMAGE REPORT VIA SPOTTER NETWORK - 
            12 TREES SNAPPED BRANCHES SNAPPED, PATH A 
            COUPLE HUNDRED YARDS WIDE ON CLARK TOWER 
            ROAD 1/2 MILE NORTH OF ST CHARLES ROAD SOUTH 
            OF WINTERSET, IOWA (SN#52268). 

0507 PM     TORNADO          3 NW MARTENSDALE        41.41N 93.78W
03/05/2022                   WARREN             IA   STORM CHASER     

            STORM CHASER REPORT OF TORNADO DAMAGE ALONG 
            I-35 AND 2 MILES N OR RT. 92 VIA TWITTER. 

0509 PM     TORNADO          NORWALK                 41.50N 93.68W
03/05/2022                   WARREN             IA   FIRE DEPT/RESCUE 

            MULTIPLE REPORTS OF TORNADO ON THE GROUND 
            VIA PUBLIC AND FIRE FIGHTER CONFIRMED IN 
            NORWALK. 

0512 PM     TORNADO          3 N PATTERSON           41.39N 93.88W
03/05/2022                   MADISON            IA   TRAINED SPOTTER  

            TORNADO DAMAGE REPORT VIA SPOTTER NETWORK - 
            THERE IS DAMAGE TO A STRUCTURE HERE AS WELL 
            AS EXTENSIVE TREE DAMAGE IN THIS AREA 
            (SN#52270). 

0512 PM     TORNADO          SPRING HILL             41.41N 93.65W
03/05/2022                   WARREN             IA   TRAINED SPOTTER  

            TORNADO ONGOING REPORT VIA SPOTTER NETWORK - 
            LARGE RAIN WRAPPED MULTI VORTEX TORNADO ON 
            THE GROUND 2 MILES NORTH OF MY LOCATION 
            MOVING NE (SN#52269). 

0515 PM     HAIL             3 SSW WAUKEE            41.57N 93.88W
03/05/2022  E0.25 INCH       DALLAS             IA   TRAINED SPOTTER  

            SPOTTER REPORT OF PEA SIZED HAIL SSW OF 
            WAUKEE. 

0520 PM     TORNADO          2 SE NORWALK            41.48N 93.65W
03/05/2022                   WARREN             IA   TRAINED SPOTTER  

            TORNADO DAMAGE REPORT VIA SPOTTER NETWORK - 
            APPARENT DAMAGE TO SEVERAL HOUSES AND 
            STRUCTURES JUST SOUTH OF HWY G24 AND R57 IN 
            NORWALK. APPARENT TORNADO PATH (SN#52271). 

0521 PM     TORNADO          1 W PATTERSON           41.35N 93.90W
03/05/2022                   MADISON            IA   STORM CHASER     

            STORM CHASER REPORT OF TORNADO DAMAGE NEAR 
            PATTERSON, IA VIA TWITTER. 

0523 PM     TORNADO          1 W HUMESTON            40.86N 93.52W
03/05/2022                   WAYNE              IA   PUBLIC           

            TORNADO REPORT OF A TORNADO ON THE GROUND 
            WEST OF HUMESTON VIA PUBLIC AND STORM 
            CHASER. 

0525 PM     TORNADO          3 WSW HUMESTON          40.85N 93.55W
03/05/2022                   WAYNE              IA   EMERGENCY MNGR   

            EMERGENCY MANAGEMENT RELAYED LAW ENFORCEMENT 
            REPORT OF A TORNADO ON THE GROUND 3 MILES W 
            AND 1 MILE S OF HUMESTON. AT LEAST ONE HOME 
            DAMAGED. 

0533 PM     TORNADO          3 N HUMESTON            40.90N 93.49W
03/05/2022                   WAYNE              IA   PUBLIC           

            TORNADO REPORT VIA TWITTER. 

0534 PM     HAIL             1 ESE PLEASANT HILL     41.58N 93.50W
03/05/2022  E2.50 INCH       POLK               IA   PUBLIC           

            PUBLIC REPORT OF 2.50 INCH OR GREATER HAIL 
            STONES IN PLEASANT HILL VIA TWITTER. 

0535 PM     TORNADO          3 W MILLERTON           40.85N 93.36W
03/05/2022                   WAYNE              IA   STORM CHASER     

            STORM CHASER REPORT OF TWO TORNADOES ON THE 
            GROUND WEST OF MILLERTON. 

0536 PM     TORNADO          2 E DERBY               40.93N 93.42W
03/05/2022                   LUCAS              IA   STORM CHASER     

            STORM CHASERS REPORTED TORNADO STILL ON THE 
            GROUND JUST EAST OF DERBY. LOCATION 
            ESTIMATED. 

0537 PM     TORNADO          5 NW MILLERTON          40.91N 93.36W
03/05/2022                   LUCAS              IA   PUBLIC           

            TORNADO ON THE GROUND REPORTED VIA PUBLIC. 

0537 PM     HAIL             3 SW WEST DES MOINES    41.54N 93.80W
03/05/2022  E0.25 INCH       DALLAS             IA   TRAINED SPOTTER  

            HAIL REPORT VIA SPOTTER NETWORK. 

0538 PM     TORNADO          4 ENE DERBY             40.94N 93.39W
03/05/2022                   LUCAS              IA   PUBLIC           

            TORNADO REPORT VIA PHONE CALL. 

0544 PM     TORNADO          DERBY                   40.93N 93.46W
03/05/2022                   LUCAS              IA   STORM CHASER     

            STORM CHASER REPORT OF TWIN TORNADOES ON THE 
            GROUND EAST OF DERBY. 

0546 PM     TORNADO          LAMBS GROVE             41.70N 93.08W
03/05/2022                   JASPER             IA   PUBLIC           

            TORNADO ON THE GROUND, HOUSE REPORTEDLY 
            FLATTENED. 

0548 PM     TORNADO          1 SW CHARITON           41.01N 93.32W
03/05/2022                   LUCAS              IA   TRAINED SPOTTER  

            TORNADO REPORTED VIA SPOTTER NETWORK - 
            FAMILY MEMBER JUST TEXTED ME A PICTURE OF A 
            CONE TORNADO IN PROGRESS JUST SW OF CHARITON 
            JUST A COUPLE MINUTES AGO. THEY ARE SEEKING 
            SHELTER NOW. 

0554 PM     TORNADO          GARDEN GROVE            40.83N 93.61W
03/05/2022                   DECATUR            IA   PUBLIC           

            PUBLIC REPORT VIA PHONE CALL - HEAVY DAMAGE, 
            ROOFS RIPPED OFF, METAL BUILDING 
            FLATTENED/COMPLETELY GONE. 

0554 PM     TORNADO          1 S CHARITON            41.00N 93.31W
03/05/2022                   LUCAS              IA   BROADCAST MEDIA  

            TORNADO DAMAGE REPORT VIA NWSCHAT - CITY OF 
            CHARITON IS FINE. 1 MILE SOUTH OF TOWN HAS A 
            ROW OF 15 POWER POLES DOWN. 

0555 PM     TORNADO          1 W CORYDON             40.76N 93.34W
03/05/2022                   WAYNE              IA   LAW ENFORCEMENT  

            SHERIFF RELAYED TORNADO REPORT ON THE GROUND 
            IN CORYDON. 

0559 PM     TORNADO          3 W LAMBS GROVE         41.70N 93.14W
03/05/2022                   JASPER             IA   STORM CHASER     

            STORM CHASER REPORT OF SIGNIFICANT TORNADO 
            DAMAGE WITH TREES SNAPPED AND STRUCTURAL 
            DAMAGE VIA TWITTER. 

0559 PM     TORNADO          2 SE CHARITON           41.00N 93.28W
03/05/2022                   LUCAS              IA   BROADCAST MEDIA  

            TORNADO DAMAGE VIA NWSCHAT - SIGNIFICANT 
            HOME DAMAGE 2 SE OF CHARITON. ROOF AND WALLS 
            GONE. 

0607 PM     HAIL             1 W ALTOONA             41.66N 93.50W
03/05/2022  U1.00 INCH       POLK               IA   PUBLIC           

            REPORT FROM MPING: QUARTER (1.00 IN.). 

0612 PM     TORNADO          KELLOGG                 41.72N 92.91W
03/05/2022                   JASPER             IA   AMATEUR RADIO    

            TORNADO REPORTED ON THE GROUND NORTHEAST OF 
            KELLOGG VIA NWSCHAT. 

0612 PM     TORNADO          2 S RUSSELL             40.95N 93.20W
03/05/2022                   LUCAS              IA   PUBLIC           

            TORNADO IMAGE FROM PUBLIC VIA FACEBOOK. 

0615 PM     TORNADO          5 NE KELLOGG            41.77N 92.87W
03/05/2022                   JASPER             IA   PUBLIC           

             

0617 PM     TORNADO          4 WSW LAMBS GROVE       41.68N 93.15W
03/05/2022                   JASPER             IA   PUBLIC           

            TORNADO DAMAGE VIA SPOTTER NETWORK - 18 
            WHEELER OVERTURNED (SN#52273). 

0617 PM     TORNADO          ALLERTON                40.71N 93.37W
03/05/2022                   WAYNE              IA   TRAINED SPOTTER  

            DESTROYED TRAILER HOME, HEAVILY DAMAGED 
            RESIDENCY ON THE SOUTH SIDE OF TOWN. TREES 
            DOWN. SPOTTER ID: WN400. 

0621 PM     TORNADO          1 ESE PLEASANT HILL     41.58N 93.50W
03/05/2022                   POLK               IA   EMERGENCY MNGR   

            EMERGENCY MANAGER REPORT OF MULTIPLE HOUSES 
            IN AREA LEVELED VIA NWSCHAT. 

0623 PM     TORNADO          4 ENE DERBY             40.94N 93.39W
03/05/2022                   LUCAS              IA   STORM CHASER     

            TORNADO REPORT VIA TWITTER. 

0624 PM     TORNADO          3 ESE CHARITON          41.00N 93.26W
03/05/2022                   LUCAS              IA   TRAINED SPOTTER  

            TORNADO DAMAGE REPORT VIA SPOTTER NETWORK - 
            - SIGNIFICANT STRUCTURE DAMAGE FROM EARLIER 
            TORNADO. LOTS OF BUILDINGS AND SOME HOMES 
            DAMAGE. GAS LEAKING. MAJOR TREE DAMAGE 
            (SN#52274). 

0641 PM     TORNADO          6 SSW TAMA              41.88N 92.60W
03/05/2022                   TAMA               IA   TRAINED SPOTTER  

            TORNADO REPORT VIA SPOTTER NETWORK - CONE 
            TORNADO WITH POWER FLASHES 4 NNE NEAR TAMA. 
            (SN#52275). 

Radar

 

Radar loop of severe thunderstorm and tornado warnings and storm reports on March 5, 2022. Courtesy of the Iowa Environmental Mesonet and its daily feature.

 

GOES-East 5 minute loop of visible imagery with warning polygons (red = tornado; yellow = severe thunderstorm) overlaid.

GOES-East 1 minute loop of infrared imagery with warning polygons (red = tornado; yellow = severe thunderstorm) overlaid.

GOES-East 5 minute visible and infrared blended (sandwich) product.

Multi-Radar Multi-Sensor (MRMS) low level rotation tracks with reds and cyan/light blues indicating strong rotation.

Environment

Synoptic Environment

Figure 1: Analyzed surface map at 18z (noon) March 5th.	Figure 2: 925mb map at 12z (6 am) March 5th.	Figure 3: 500mb map at 12z (6 am) March 5th.

Near-storm Environment

Figure 4: The Storm Relative Helicity (m2/s2) is a measure of the potential for cyclonic updraft rotation in right-moving supercells. Larger values of  0-1-km SRH (greater than 100 m2 s-2) suggest an increased threat of tornadoes with supercells. For SRH, larger values are generally better, but there are no clear thresholds between non-tornadic and significant tornadic supercells.	Figure 5:  Loop of the 3-km CAPE (J/kg) & Surface Vorticity. CAPE in the lowest 3-km above ground level, and surface relative vorticity.  Areas of large 0-3-km CAPE tend to favor strong low-level stretching, and can support tornado formation when co-located with significant vertical vorticity near the ground.	Figure 6:  Loop of the Significant Tornado Parameter. Significant Tornado Parameter utilizes 0-1 km storm relative helicity, surface based CAPE, surface based LCL height, and 0-6 km bulk wind difference. Historically, the majority of significant tornadoes (EF-2+) have been associated with values over 1, while most non-tornadic supercells have been associated with values less than 1.

Photos/Videos

Additional photos/videos on this Twitter Moment

Winterset thru Newton

Large wedge tornado moving through Winterset. Photo courtesy of Roger Riley.	Significant damage near Winterset. Photo from NWS storm survey.	Significant damage near Winterset. Photo from NWS storm survey.

Significant damage near Winterset. Photo from NWS storm survey.	Damage to an outbuilding near Norwalk. Photo from NWS storm survey.	Total loss of a home east of Des Moines. Photo from NWS storm survey.

Power pole damage and home damage east of Des Moines. Photo from NWS storm survey.	Power pole damage near Colfax. Photo from NWS storm survey.	Home damage on the north side of Newton. Photo from NWS storm survey.

Chariton and Chariton Satellite Tornadoes

Damage to the Pin Oak Lodge in Chariton. Photo from NWS damage survey.	Splintered tree in Chariton. Photo from NWS damage survey.	Extensive tree damage at Red haw State Park in Chariton. Photo from NWS damage survey.

Footage of the Chariton satellite tornado merging with the main Chariton tornado. Courtesy of Nathan Moore.

Garden Grove to Humeston and Derby Tornadoes

Twin tornadoes near Humeston/Derby. Photo courtesy of Chicago Midwest Storm Chasers.	Destruction of an outbuilding near Derby. Photo from NWS damage survey.	Complete removal of roof on a home in Garden Grove. Photo from NWS damage survey.

Twin tornadoes near Humeston and Derby. Courtesy of Nathan Moore.

Allerton to Corydon

Tornado near Corydon. Photo courtesy of twitter user @bambino2678	Destruction of concession stand at Allerton baseball field. Photo from NWS damage survey.	Frozen turkeys found at the Allerton ballfield. These came from a home nearly half a mile from this location! Photo from NWS damage survey.

Kellogg and Tama Tornadoes

Outbuilding detroyed north of Rock Creek State Park. Photo from NWS damage survey.	Tree damage north of Rock Creek State Park. Photo from NWS damage survey.	Home and vehicle damage south of Tama. Photo from NWS damage survey.

Corning

Weak EF-Unknown tornado that developed near Corning. This same supercell would go on to produce the large EF-4 tornado. Courtesy of Nathan Moore.