A low pressure system developed off the Rockies in the Wyoming, Nebraska, South Dakota region and deepened as it moved eastward through South Dakota through the day on the March 6th.  Southerly flow had already established itself and was bringing up Gulf of Mexico moisture into the Plains.  A dry line also developed out ahead of the parent cold front, sparking initial storms in eastern Nebraska during the afternoon hours.  Storms relatively quickly developed into a linear system, though a few isolated storms developed out ahead of the main line and proceeded to produce severe hail.  As the line of storms progressed eastward through Iowa, they produced numerous severe hail and damaging wind reports.  Additionally, a few tornadoes developed along the line, producing damage primarily in central and southern Iowa.

Hail in WARREN, IOWA
From 06-MAR-17 19:00:00 to 06-MAR-17 19:00:00 (CST-6)
Location: PROLE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Public reported up to penny sized hail, via social media.

Thunderstorm Wind in POLK, IOWA
From 06-MAR-17 19:03:00 to 06-MAR-17 19:03:00 (CST-6)
Location: WEST DES MOINES
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter estimated wind gusts to 60 mph along with dime sized hail.

Hail in WARREN, IOWA
From 06-MAR-17 19:07:00 to 06-MAR-17 19:07:00 (CST-6)
Location: NORWALK
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported nickel sized hail.

Thunderstorm Wind in HARDIN, IOWA
From 06-MAR-17 18:55:00 to 06-MAR-17 18:55:00 (CST-6)
Location: GARDEN CITY
Magnitude: 61.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported power poles leaning due to wind about a half mile north of the Story-Hardin County line on S27.  This is a delayed report and time estimated by radar.

Tornado in BOONE, IOWA
From 06-MAR-17 18:27:00 to 06-MAR-17 18:39:00 (CST-6)
Location: LUTHER
Tornado F-scale: EF0
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Tornado began near the Des Moines River just west of Ledges State Park.  This tornado tracked northeast for several miles producing mainly EF0 damage.  The tornado likely had intermittent contact with the ground, especially near Jordon to the Boone/Story County line.  The tornado continued into Story County.

Hail in WARREN, IOWA
From 06-MAR-17 19:16:00 to 06-MAR-17 19:16:00 (CST-6)
Location: INDIANOLA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency manager reported up to quarter sized hail.

Thunderstorm Wind in GRUNDY, IOWA
From 06-MAR-17 19:19:00 to 06-MAR-17 19:19:00 (CST-6)
Location: WELLSBURG
Magnitude: 65.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported a barn moved off of its foundation and heavily damaged.  This is a delayed report and time estimated by radar.

Thunderstorm Wind in GRUNDY, IOWA
From 06-MAR-17 19:19:00 to 06-MAR-17 19:19:00 (CST-6)
Location: WELLSBURG
Magnitude: 52.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported outbuildings damaged.  This is a delayed report.

Thunderstorm Wind in BLACK HAWK, IOWA
From 06-MAR-17 19:58:00 to 06-MAR-17 19:58:00 (CST-6)
Location: (ALO)WATERLOO MUNI A
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Waterloo ASOS recorded a 59 mph wind gust.

Thunderstorm Wind in DECATUR, IOWA
From 06-MAR-17 19:33:00 to 06-MAR-17 19:33:00 (CST-6)
Location: LAMONI
Magnitude: 67.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Lamoni ASOS recorded a 77 mph wind gust.

Thunderstorm Wind in BLACK HAWK, IOWA
From 06-MAR-17 20:00:00 to 06-MAR-17 20:00:00 (CST-6)
Location: CEDAR FALLS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported wind gusts to 60 mph.

Hail in JASPER, IOWA
From 06-MAR-17 20:05:00 to 06-MAR-17 20:05:00 (CST-6)
Location: SULLY
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Public reported nickel sized hail, via social media.

Thunderstorm Wind in WAYNE, IOWA
From 06-MAR-17 20:20:00 to 06-MAR-17 20:20:00 (CST-6)
Location: SEYMOUR
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported power out one mile west of Seymour along with very strong winds and heavy rainfall.

Thunderstorm Wind in TAMA, IOWA
From 06-MAR-17 20:27:00 to 06-MAR-17 20:27:00 (CST-6)
Location: CHELSEA
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported wind gusts to 60 plus MPH and quarter sized hail.

Tornado in MARION, IOWA
From 06-MAR-17 19:29:00 to 06-MAR-17 19:34:00 (CST-6)
Location: NEPAS
Tornado F-scale: EF1
Property damage: 50.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

NWS storm survey confirmed a tornado touchdown approximately 5 miles west of Knoxville.  An outbuilding was heavily damaged in this area and significant roof damage occurred to a residence. This is consistent with winds of 90 to 100 mph - or EF1 damage.

Tornado in HARDIN, IOWA
From 06-MAR-17 18:58:00 to 06-MAR-17 19:04:00 (CST-6)
Location: GARDEN CITY
Tornado F-scale: EF1
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Tornado developed south of Hubbard and moved quickly northeast.  Tree and power line damage occurred along it's path with some outbuilding damage to the southeast of Hubbard.

Tornado in WARREN, IOWA
From 06-MAR-17 19:19:00 to 06-MAR-17 19:24:00 (CST-6)
Location: LIBERTY CENTER
Tornado F-scale: EF1
Property damage: 80.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Tornado developed southwest of Milo and moved quickly northeast.  It destroyed a small outbuilding shortly after developing.  It then destroyed another garage tossing it several hundred yards before settling on the other side of the road in a neighbors yard.  Additional tree damage occurred before encountering another residence where significant roof and window damage occurred.  The tornado then continued in mainly rural areas southeast of Milo with only tree damage prior to lifting.

Thunderstorm Wind in WARREN, IOWA
From 06-MAR-17 19:16:00 to 06-MAR-17 19:16:00 (CST-6)
Location: INDIANOLA
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency manager reported wind gusts to 60 mph along with nickel sized hail.  The city of Ackworth was also reported to have lost power.

Thunderstorm Wind in WARREN, IOWA
From 06-MAR-17 19:18:00 to 06-MAR-17 19:18:00 (CST-6)
Location: SANDYVILLE
Magnitude: 56.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported a downed power pole over Highway 92 blocking westbound traffic.  Damage done by straight line winds and time estimated by radar.

Thunderstorm Wind in HARDIN, IOWA
From 06-MAR-17 19:07:00 to 06-MAR-17 19:07:00 (CST-6)
Location: NEW PROVIDENCE
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Law enforcement relayed public report that power out in New Providence due to very strong winds along with pea to nickel sized hail.

Tornado in MARION, IOWA
From 06-MAR-17 19:35:00 to 06-MAR-17 19:42:00 (CST-6)
Location: DONNELLY
Tornado F-scale: EF1
Property damage: 20.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

NWS storm survey confirmed another tornado touchdown approximately 4 miles northwest of Knoxville.  Roof damage occurred to a few residences with large sections of shingles removed along with tree damage.  This is consistent with winds of 85 to 95 mph - or EF1 damage.

Tornado in APPANOOSE, IOWA
From 06-MAR-17 20:22:00 to 06-MAR-17 20:29:00 (CST-6)
Location: JEROME
Tornado F-scale: EF1
Property damage: 20.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Tornado crossed into Appanoose county from Wayne county.   After crossing into Appanoose county, the tornado damaged a residence along 110th Avenue with several
trees being topped and buildings damaged. The tornado continued across mainly rural areas of western Appanoose county before crossing IA Highway 2 where minor
damage occurred to a farmstead.  The tornado appeared to dissipate shortly after crossing Highway 2.

Thunderstorm Wind in GRUNDY, IOWA
From 06-MAR-17 19:18:00 to 06-MAR-17 19:18:00 (CST-6)
Location: WELLSBURG
Magnitude: 56.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported two utility poles downed about a quarter miles east and south of E Ave.  This is a delayed reported and time estimated by radar.

Thunderstorm Wind in GRUNDY, IOWA
From 06-MAR-17 19:17:00 to 06-MAR-17 19:17:00 (CST-6)
Location: WELLSBURG
Magnitude: 61.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency manager reported power poles down and a cattle building damaged near D35 and T19.

Tornado in APPANOOSE, IOWA
From 06-MAR-17 20:33:00 to 06-MAR-17 20:42:00 (CST-6)
Location: CENTERVILLE ARPT
Tornado F-scale: EF2
Property damage: 750.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

NWS storm survey confirmed a tornado touchdown on the south side of Centerville just after 830 pm.  The tornado produced significant damage to a manufacturing facility with a partial collapse of walls and roof structures.  The tornado tracked very quickly northeast damaging an outbuilding and taking a large section of a roof off a residence along Highway 2. Damage was also found to several outbuildings at a farmstead south of Udell with a camper being tipped on its side.  The worst damage occurred near Centerville where damage was consistent with winds of 115 to 125 mph - or EF2 damage. Damage to the east was not quite as intense generally EF0 or EF1 damage.  It should be noted that the tornado may not have been continuous along the the entire 10 mile path...as the damage appeared to be more intermittent.

Tornado in APPANOOSE, IOWA
From 06-MAR-17 20:30:00 to 06-MAR-17 20:37:00 (CST-6)
Location: CINCINNATI
Tornado F-scale: EF1
Property damage: 40.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Tornado developed just east of Cincinnati and moved rapidly to the northeast.  The tornado damaged many trees along its path as well as a few different outbuildings with top wind speeds of 90mph - of EF1 damage.

Tornado in MARION, IOWA
From 06-MAR-17 19:47:00 to 06-MAR-17 19:52:00 (CST-6)
Location: OTLEY
Tornado F-scale: EF0
Property damage: 25.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

NWS storm survey found the last tornado in a series from the same storm in northeast Marion county.  The tornado touchdown and moved quickly northeast producing mainly tree damage.  However, one barn was shifted off its foundation with several other open air structures being destroyed altogether.  Damage was rated high end EF0.

Tornado in WAYNE, IOWA
From 06-MAR-17 20:16:00 to 06-MAR-17 20:22:00 (CST-6)
Location: GENOA
Tornado F-scale: EF2
Property damage: 2.00M
Crop damage: 0.00K
Reported by: NWS Storm Survey

NWS storm survey confirmed a tornado touched down about six miles southwest of Seymour in Wayne County where several trees sustained major damage and several farmsteads were damaged. The tornado then tracked northeast through rural sections of Wayne County and produced sporadic tree damage.  The tornado then moved into the south side of Seymour and produced significant damage to
several homes and structures with the partial collapse of walls and roof structures and widespread tree damage. A brick school building also sustained major damage to its roof and walls.  After doing additional damage to residences to the northeast of the school, it exited Seymour and crossed into Appanoose County.

Hail in HUMBOLDT, IOWA
From 06-MAR-17 17:01:00 to 06-MAR-17 17:01:00 (CST-6)
Location: RENWICK MUNI ARPT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported lots of quarter sized hail.

Hail in PALO ALTO, IOWA
From 06-MAR-17 16:05:00 to 06-MAR-17 16:05:00 (CST-6)
Location: CYLINDER
Magnitude: 2.50 
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Picture submitted to broadcast media and shown on social media, relayed by COOP observer.

Hail in CARROLL, IOWA
From 06-MAR-17 16:40:00 to 06-MAR-17 16:40:00 (CST-6)
Location: CARROLL
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Report via social media.

Thunderstorm Wind in MARION, IOWA
From 06-MAR-17 20:01:00 to 06-MAR-17 20:01:00 (CST-6)
Location: PELLA
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Gust recorded at the Pella Iowa RWIS station.

Thunderstorm Wind in TAMA, IOWA
From 06-MAR-17 20:26:00 to 06-MAR-17 20:26:00 (CST-6)
Location: CHELSEA
Magnitude: 61.00 EG
Property damage: 40.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency manager reported power lines down, house damage, and a barn blown down.

Thunderstorm Wind in WAPELLO, IOWA
From 06-MAR-17 21:02:00 to 06-MAR-17 21:02:00 (CST-6)
Location: OTTUMWA
Magnitude: 61.00 EG
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported several trees down throughout town along with a roof off of a house on S. Madison Ave and a metal shed destroyed on 50th Street.  This is a delayed report and time estimated from radar.

Thunderstorm Wind in WAPELLO, IOWA
From 06-MAR-17 21:05:00 to 06-MAR-17 21:05:00 (CST-6)
Location: AGENCY
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported a large pine tree uprooted.

Hail in HUMBOLDT, IOWA
From 06-MAR-17 16:37:00 to 06-MAR-17 16:37:00 (CST-6)
Location: DAKOTA CITY
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Report via social media.

Thunderstorm Wind in POLK, IOWA
From 06-MAR-17 18:41:00 to 06-MAR-17 18:41:00 (CST-6)
Location: POLK CITY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

NWS employee estimated 50-60 mph wind gusts at NWS office in Des Moines.

Thunderstorm Wind in MARION, IOWA
From 06-MAR-17 19:37:00 to 06-MAR-17 19:37:00 (CST-6)
Location: DONNELLY
Magnitude: 52.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency manager reported structure damage in Marion County. Location and time radar estimated.

Thunderstorm Wind in CALHOUN, IOWA
From 06-MAR-17 17:00:00 to 06-MAR-17 17:00:00 (CST-6)
Location: JOLLEY
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The RWIS station at Rockwell City recorded a gust.

Thunderstorm Wind in MARSHALL, IOWA
From 06-MAR-17 19:39:00 to 06-MAR-17 19:39:00 (CST-6)
Location: MARSHALLTOWN ARPT
Magnitude: 55.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Marshalltown ASOS recorded strong wind gust.

Thunderstorm Wind in STORY, IOWA
From 06-MAR-17 18:30:00 to 06-MAR-17 18:30:00 (CST-6)
Location: SLATER
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Creston AWOS recorded a strong wind gust.

Thunderstorm Wind in CALHOUN, IOWA
From 06-MAR-17 16:52:00 to 06-MAR-17 16:52:00 (CST-6)
Location: ROCKWELL CITY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported wind gusts to 60 mph along with nickel sized hail.

Thunderstorm Wind in POLK, IOWA
From 06-MAR-17 19:11:00 to 06-MAR-17 19:11:00 (CST-6)
Location: HASTIE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Estimated 60 mph winds with pea size hail too. Report via social media.

Thunderstorm Wind in WAPELLO, IOWA
From 06-MAR-17 20:59:00 to 06-MAR-17 20:59:00 (CST-6)
Location: OTTUMWA
Magnitude: 60.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Ottumwa ASOS recorded 69 mph wind gusts.

Hail in WEBSTER, IOWA
From 06-MAR-17 16:26:00 to 06-MAR-17 16:26:00 (CST-6)
Location: TARA
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported golf ball sized hail between Fort Dodge and Barnum.

Thunderstorm Wind in EMMET, IOWA
From 06-MAR-17 16:20:00 to 06-MAR-17 16:20:00 (CST-6)
Location: RINGSTED
Magnitude: 56.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotter reported broken storm windows along with a few medium to large tree branches down.

Hail in WEBSTER, IOWA
From 06-MAR-17 16:29:00 to 06-MAR-17 16:29:00 (CST-6)
Location: (FOD)FT DODGE MUNI A
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter/Coop observer reported up to quarter sized hail.

Thunderstorm Wind in MARSHALL, IOWA
From 06-MAR-17 19:45:00 to 06-MAR-17 19:45:00 (CST-6)
Location: MARSHALLTOWN ARPT
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Marshalltown ASOS recorded a 64 mph wind gust.

Thunderstorm Wind in STORY, IOWA
From 06-MAR-17 18:45:00 to 06-MAR-17 18:45:00 (CST-6)
Location: AMES ARPT
Magnitude: 58.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Ames ASOS recorded wind gust to 67 mph.

Hail in HUMBOLDT, IOWA
From 06-MAR-17 16:34:00 to 06-MAR-17 16:34:00 (CST-6)
Location: DAKOTA CITY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported pea to quarter sized hail for about 5 minutes.  Delayed report.

Thunderstorm Wind in PALO ALTO, IOWA
From 06-MAR-17 16:20:00 to 06-MAR-17 16:20:00 (CST-6)
Location: DEPEW
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported 52 kt winds along with pea to dime sized hail.

Hail in HUMBOLDT, IOWA
From 06-MAR-17 16:36:00 to 06-MAR-17 16:36:00 (CST-6)
Location: DAKOTA CITY
Magnitude: 1.50 
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Social Media

Public reported between quarter and golf ball sized hail.  Report via social media.

Hail in WEBSTER, IOWA
From 06-MAR-17 16:20:00 to 06-MAR-17 16:20:00 (CST-6)
Location: ROELYN
Magnitude: 1.00 
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported wind driven hail broke multiple window screens at the residence.

Hail in HUMBOLDT, IOWA
From 06-MAR-17 16:38:00 to 06-MAR-17 16:38:00 (CST-6)
Location: DAKOTA CITY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported quarter sized hail.

Thunderstorm Wind in CALHOUN, IOWA
From 06-MAR-17 17:00:00 to 06-MAR-17 17:00:00 (CST-6)
Location: ROCKWELL CITY
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported two inch branches blown over along with tine blown off metal buildings and doors blown off of a grain elevator.

Hail in HUMBOLDT, IOWA
From 06-MAR-17 16:38:00 to 06-MAR-17 16:38:00 (CST-6)
Location: DAKOTA CITY
Magnitude: 2.00 
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Social Media

Public reported up to 2 inch sized hail.  Report relayed by media on twitter.

Hail in KOSSUTH, IOWA
From 06-MAR-17 16:49:00 to 06-MAR-17 16:49:00 (CST-6)
Location: LU VERNE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported pea to penny sized hail.

Hail in KOSSUTH, IOWA
From 06-MAR-17 16:42:00 to 06-MAR-17 16:42:00 (CST-6)
Location: LAKOTA
Magnitude: 1.75 
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Social Media

Public reported golf ball sized hail.  Report relayed by KAAL via social media.  Time and location estimated by radar.  Delayed report.

Hail in WINNEBAGO, IOWA
From 06-MAR-17 17:05:00 to 06-MAR-17 17:05:00 (CST-6)
Location: BUFFALO CENTER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported ongoing quarter sized hail.

Hail in POCAHONTAS, IOWA
From 06-MAR-17 17:11:00 to 06-MAR-17 17:11:00 (CST-6)
Location: BLANDEN
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported nickel sized hail.

Hail in WEBSTER, IOWA
From 06-MAR-17 17:18:00 to 06-MAR-17 17:18:00 (CST-6)
Location: GOWRIE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported dime to quarter sized hail covering the ground.

Hail in GREENE, IOWA
From 06-MAR-17 17:15:00 to 06-MAR-17 17:15:00 (CST-6)
Location: CHURDAN
Magnitude: 1.25 
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Social Media

Public reported quarter to half dollar sized hail via social media.

Hail in WINNEBAGO, IOWA
From 06-MAR-17 16:58:00 to 06-MAR-17 16:58:00 (CST-6)
Location: RAKE
Magnitude: 1.50 
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Local Fire Department reported nearly golf ball sized hail.

Hail in WEBSTER, IOWA
From 06-MAR-17 17:33:00 to 06-MAR-17 17:33:00 (CST-6)
Location: BURNSIDE
Magnitude: 1.75 
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

Public reported up to golf ball sized hail.

Hail in WEBSTER, IOWA
From 06-MAR-17 17:20:00 to 06-MAR-17 17:20:00 (CST-6)
Location: GOWRIE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Public reported quarter sized hail via social media.

Thunderstorm Wind in HAMILTON, IOWA
From 06-MAR-17 17:50:00 to 06-MAR-17 17:50:00 (CST-6)
Location: WEBSTER CITY
Magnitude: 60.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Mesonet station in Webster City recorded a 60 mph wind gust.

Thunderstorm Wind in BOONE, IOWA
From 06-MAR-17 18:18:00 to 06-MAR-17 18:18:00 (CST-6)
Location: BOXHOLM
Magnitude: 56.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency manager reported power lines down in town.

Thunderstorm Wind in HAMILTON, IOWA
From 06-MAR-17 17:55:00 to 06-MAR-17 17:55:00 (CST-6)
Location: WEBSTER CITY
Magnitude: 52.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported a semi blown on its side on Highway 20 near Webster City.  Time estimated via radar.

Tornado in WEBSTER, IOWA
From 06-MAR-17 17:28:00 to 06-MAR-17 17:32:00 (CST-6)
Location: HARCOURT
Tornado F-scale: EF1
Property damage: 70.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Video evidence submitted by a firefighter showed a tornado touchdown approximately 3 miles west northwest of Dayton with dust and debris being lifted into the air.  Tornado significantly damaged a hog confinement facility along with damaging power lines.

Thunderstorm Wind in HAMILTON, IOWA
From 06-MAR-17 17:56:00 to 06-MAR-17 17:56:00 (CST-6)
Location: WEBSTER CITY
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Public reported that thunderstorm winds took out power in Webster City.  Reported via social media.

Thunderstorm Wind in HARDIN, IOWA
From 06-MAR-17 19:11:00 to 06-MAR-17 19:11:00 (CST-6)
Location: ELDORA
Magnitude: 61.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported power lines and trees down.  This is a delayed report and time estimated by radar.

Thunderstorm Wind in DALLAS, IOWA
From 06-MAR-17 18:21:00 to 06-MAR-17 18:21:00 (CST-6)
Location: MINBURN
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported wind gusts to 60 mph or more.

Thunderstorm Wind in BOONE, IOWA
From 06-MAR-17 18:26:00 to 06-MAR-17 18:26:00 (CST-6)
Location: LUTHER
Magnitude: 61.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Social Media

Public reported tree and farm out building damage, including roof sections missing.  Time estimated by radar.

Thunderstorm Wind in BOONE, IOWA
From 06-MAR-17 18:31:00 to 06-MAR-17 18:31:00 (CST-6)
Location: BOONE MUNI ARPT
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Retired NWS Employee reported pea sized hail, small branches down, and wind gusts to 60 mph.

Thunderstorm Wind in FRANKLIN, IOWA
From 06-MAR-17 18:14:00 to 06-MAR-17 18:14:00 (CST-6)
Location: ALEXANDER
Magnitude: 61.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Broadcast Media

KLMJ Radio in Hampton reported damage to a machine shed, greenhouse, and trees between Rowan and Latimer along Highway 3.  Time estimated by radar.

Thunderstorm Wind in FRANKLIN, IOWA
From 06-MAR-17 18:27:00 to 06-MAR-17 18:27:00 (CST-6)
Location: CHAPIN
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported nickel sized hail along with estimated wind gusts to 60 mph.

Hail in DALLAS, IOWA
From 06-MAR-17 18:28:00 to 06-MAR-17 18:28:00 (CST-6)
Location: DE SOTO
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Law enforcement relayed public report of up to quarter sized hail.

Thunderstorm Wind in DALLAS, IOWA
From 06-MAR-17 18:45:00 to 06-MAR-17 18:45:00 (CST-6)
Location: HADDEN HILL
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported 50 to 60 mph wind gusts along with pea size hail.

Thunderstorm Wind in RINGGOLD, IOWA
From 06-MAR-17 19:00:00 to 06-MAR-17 19:00:00 (CST-6)
Location: MT AYR
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: COOP Observer

Coop observer reported minor tree damage and damage to local street signs.

Hail in WARREN, IOWA
From 06-MAR-17 19:00:00 to 06-MAR-17 19:00:00 (CST-6)
Location: CUMMING
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported up to nickel sized hail.

Hail in CERRO GORDO, IOWA
From 06-MAR-17 18:32:00 to 06-MAR-17 18:32:00 (CST-6)
Location: HURLEY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported nickel to quarter sized hail.

Tornado in STORY, IOWA
From 06-MAR-17 18:39:00 to 06-MAR-17 18:44:00 (CST-6)
Location: GILBERT
Tornado F-scale: EF0
Property damage: 75.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tornado continued from Boone County into Story County.  The tornado produced tree and shed damage southwest of Gilbert before downing power lines just west of Gilbert.  Additional tree and outbuilding damage occurred as the tornado raced northeast with an intermittent track.

Tornado in WEBSTER, IOWA
From 06-MAR-17 17:23:00 to 06-MAR-17 17:26:00 (CST-6)
Location: LANYON
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Weak tornado caught on video by storm chasers.  Tornado stayed in rural areas of Webster County south of Harcourt with little damage.