An early spring storm moved into Iowa during the day on the 30th.   Though somewhat early in  the season for such a storm, the storm was a classic storm.  As it quite typical of April or  May, the storm was a classic "bowling ball" type system with a closed upper low lifting northeast out of the southwest U.S.  Surface low pressure moved from Kansas into Southwest Iowa during the event.  A dryline pushed northeast with the low into the state.  Strong moisture transport took place ahead of the storm with dew points reaching the mid 50s to low 60s over Iowa as afternoon temperatures were in the 60 to 70 degree range.  Strong south winds in the low levels were in place with speeds in the 35 to 45 kt range.  The atmosphere destabilized during the afternoon with lifted indices reaching -7 by the early afternoon.  CAPE values were not all that great, at about 1000 J/kg.  The freezing level during the storms was relatively low, at about 10,700 feet.  Thunderstorms developed in western Iowa and lifted northeast at 50 to 55 MPH during the afternoon.  These formed in the warm sector.  At the same time, the dryline pushed into western Iowa during the late afternoon.  The storms from the dryline produced hail and strong winds, along with 2 small tornadoes.  The line of storms took on a bow echo appearance as they raced across the state.  The storms that formed ahead of the dryline were not as significant and produced only marginal severe weather.  As the dryline storms moved in, reports of hail and high wind were numerous.  Two small tornadoes touched down briefly, causing little damage.  One was west of the Creston Airport in Union County, the second was near De Soto in Dallas County.  Minor damage occurred with the tornado west of Creston as it damaged breeze way and carport there.  High winds were quite wide spread with wind speeds reaching or exceeding 80 MPH at times.  In Latimer winds of 80 MPH took the roof off of a building for example.  In Franklin County,  high winds lifted bleachers and threw them 300 feet, across a road.  Damage was reported to an apartment building roof in Crawford County and a dugout destroyed as well.  Several reports of semi-tractortrailer trucks being overturned were received.  One was overturned in Crawford County on the Shelby County line, 6 were overturned in Adair County by 71 MPH winds with one person receiving minor injuries.  Six trucks were blown off the highway in Guthrie County and another in Story County.  Two people were injured in Boone County when high winds blew a tree onto a mobile home.  The mobile home was totally destroyed.  Three mobile homes were flipped in Story County by the high winds.  Reports of damage to outbuildings were too numerous to mention here.  Hail reports were quite numerous.  Much of the hail was around an inch in diameter. One of the storms produced large hail in the Des Moines Metro area.  Two inch diameter hail fell in Des Moines, with golf ball size hail in Norwalk and one and one half inch diameter hail falling at the Des Moines Airport.

Thunderstorm Wind in WRIGHT, IOWA
From 30-MAR-06 19:00:00 to 30-MAR-06 19:00:00 (CST)
Location: DOWS
Magnitude: 57 EG
Property damage: 10K
Reported by: EMERGENCY MANAGER

Thunderstorm Wind in STORY, IOWA
From 30-MAR-06 18:40:00 to 30-MAR-06 18:40:00 (CST)
Location: STORY CITY
Magnitude: 52 EG
Property damage: 3K
Reported by: BROADCAST MEDIA

Hail in WARREN, IOWA
From 30-MAR-06 17:30:00 to 30-MAR-06 17:30:00 (CST)
Location: NORWALK
Magnitude: 1.75 
Property damage: 15K
Reported by: TRAINED SPOTTER

Thunderstorm Wind in ADAIR, IOWA
From 30-MAR-06 17:30:00 to 30-MAR-06 17:30:00 (CST)
Location: FONTANELLE
Magnitude: 62 MG
Property damage: 20K
Reported by: AWOS,ASOS,MESONET,ETC

Hail in WARREN, IOWA
From 30-MAR-06 17:31:00 to 30-MAR-06 17:31:00 (CST)
Location: NORWALK
Magnitude: 1.75 
Property damage: 15K
Reported by: TRAINED SPOTTER

Hail in WARREN, IOWA
From 30-MAR-06 17:33:00 to 30-MAR-06 17:33:00 (CST)
Location: NORWALK
Magnitude: 0.75 
Reported by: TRAINED SPOTTER

Hail in POLK, IOWA
From 30-MAR-06 17:34:00 to 30-MAR-06 17:34:00 (CST)
Location: DES MOINES ARPT
Magnitude: 1.50 
Property damage: 50K
Reported by: AMATEUR RADIO

Thunderstorm Wind in ADAIR, IOWA
From 30-MAR-06 17:35:00 to 30-MAR-06 17:35:00 (CST)
Location: FONTANELLE
Magnitude: 61 EG
Property damage: 10K
Reported by: BROADCAST MEDIA

Hail in POLK, IOWA
From 30-MAR-06 17:36:00 to 30-MAR-06 17:36:00 (CST)
Location: DES MOINES
Magnitude: 0.88 
Property damage: 2K
Reported by: TRAINED SPOTTER

Hail in POLK, IOWA
From 30-MAR-06 17:37:00 to 30-MAR-06 17:37:00 (CST)
Location: DES MOINES
Magnitude: 1.00 
Property damage: 5K
Reported by: TRAINED SPOTTER

Thunderstorm Wind in HANCOCK, IOWA
From 30-MAR-06 18:45:00 to 30-MAR-06 18:45:00 (CST)
Location: BRITT
Magnitude: 61 EG
Property damage: 5K
Reported by: EMERGENCY MANAGER

Thunderstorm Wind in STORY, IOWA
From 30-MAR-06 18:46:00 to 30-MAR-06 18:46:00 (CST)
Location: AMES
Magnitude: 50 EG
Property damage: 2K
Reported by: AMATEUR RADIO

Thunderstorm Wind in BOONE, IOWA
From 30-MAR-06 18:26:00 to 30-MAR-06 18:26:00 (CST)
Location: LUTHER
Magnitude: 61 EG
Property damage: 3K
Reported by: EMERGENCY MANAGER

Thunderstorm Wind in DALLAS, IOWA
From 30-MAR-06 18:27:00 to 30-MAR-06 18:27:00 (CST)
Location: DALLAS CENTER
Magnitude: 61 EG
Property damage: 2K
Reported by: AMATEUR RADIO

Thunderstorm Wind in STORY, IOWA
From 30-MAR-06 18:30:00 to 30-MAR-06 18:30:00 (CST)
Location: AMES
Magnitude: 61 EG
Property damage: 10K
Reported by: EMERGENCY MANAGER

Thunderstorm Wind in POLK, IOWA
From 30-MAR-06 18:17:00 to 30-MAR-06 18:17:00 (CST)
Location: GRIMES
Magnitude: 50 MG
Reported by: AWOS,ASOS,MESONET,ETC

Thunderstorm Wind in BOONE, IOWA
From 30-MAR-06 18:18:00 to 30-MAR-06 18:18:00 (CST)
Location: BOONE
Magnitude: 61 EG
Property damage: 50K
Reported by: EMERGENCY MANAGER

Thunderstorm Wind in BOONE, IOWA
From 30-MAR-06 18:20:00 to 30-MAR-06 18:20:00 (CST)
Location: PILOT MOUND
Magnitude: 65 EG
Property damage: 75K
Reported by: EMERGENCY MANAGER

Thunderstorm Wind in BOONE, IOWA
From 30-MAR-06 18:20:00 to 30-MAR-06 18:20:00 (CST)
Location: MADRID
Magnitude: 52 MG
Property damage: 2K
Reported by: AWOS,ASOS,MESONET,ETC

Thunderstorm Wind in HAMILTON, IOWA
From 30-MAR-06 18:22:00 to 30-MAR-06 18:22:00 (CST)
Location: STRATFORD
Magnitude: 57 EG
Property damage: 5K
Reported by: TRAINED SPOTTER

Thunderstorm Wind in POLK, IOWA
From 30-MAR-06 18:30:00 to 30-MAR-06 18:30:00 (CST)
Location: ANKENY
Magnitude: 52 EG
Property damage: 2K
Reported by: AMATEUR RADIO

Thunderstorm Wind in STORY, IOWA
From 30-MAR-06 18:30:00 to 30-MAR-06 18:30:00 (CST)
Location: AMES
Magnitude: 52 EG
Property damage: 2K
Reported by: NWS EMPLOYEE(OFF DUTY)

Thunderstorm Wind in STORY, IOWA
From 30-MAR-06 18:34:00 to 30-MAR-06 18:34:00 (CST)
Location: AMES
Magnitude: 52 EG
Property damage: 5K
Reported by: TRAINED SPOTTER

Thunderstorm Wind in STORY, IOWA
From 30-MAR-06 18:35:00 to 30-MAR-06 18:35:00 (CST)
Location: HUXLEY
Magnitude: 61 EG
Property damage: 10K
Reported by: TRAINED SPOTTER

Thunderstorm Wind in STORY, IOWA
From 30-MAR-06 18:38:00 to 30-MAR-06 18:38:00 (CST)
Location: STORY CITY
Magnitude: 61 EG
Property damage: 10K
Reported by: AMATEUR RADIO

Thunderstorm Wind in HAMILTON, IOWA
From 30-MAR-06 18:39:00 to 30-MAR-06 18:39:00 (CST)
Location: JEWELL
Magnitude: 50 MG
Reported by: AWOS,ASOS,MESONET,ETC

Thunderstorm Wind in STORY, IOWA
From 30-MAR-06 18:39:00 to 30-MAR-06 18:39:00 (CST)
Location: NEVADA
Magnitude: 61 EG
Property damage: 10K
Reported by: BROADCAST MEDIA

Thunderstorm Wind in STORY, IOWA
From 30-MAR-06 18:39:00 to 30-MAR-06 18:39:00 (CST)
Location: ROLAND
Magnitude: 61 EG
Property damage: 10K
Reported by: EMERGENCY MANAGER

Thunderstorm Wind in SAC, IOWA
From 30-MAR-06 17:15:00 to 30-MAR-06 17:15:00 (CST)
Location: ODEBOLT
Magnitude: 85 EG
Property damage: 100K
Reported by: TRAINED SPOTTER

Thunderstorm Wind in CARROLL, IOWA
From 30-MAR-06 17:15:00 to 30-MAR-06 17:15:00 (CST)
Location: MANNING
Magnitude: 57 EG
Property damage: 5K
Reported by: TRAINED SPOTTER

Thunderstorm Wind in CASS, IOWA
From 30-MAR-06 17:20:00 to 30-MAR-06 17:20:00 (CST)
Location: MASSENA
Magnitude: 52 EG
Property damage: 5K
Reported by: AMATEUR RADIO

Thunderstorm Wind in ADAMS, IOWA
From 30-MAR-06 17:20:00 to 30-MAR-06 17:20:00 (CST)
Location: CORNING
Magnitude: 57 EG
Property damage: 5K
Reported by: LAW ENFORCEMENT

Thunderstorm Wind in TAYLOR, IOWA
From 30-MAR-06 17:22:00 to 30-MAR-06 17:22:00 (CST)
Location: NEW MARKET
Magnitude: 52 EG
Property damage: 2K
Reported by: TRAINED SPOTTER

Thunderstorm Wind in DALLAS, IOWA
From 30-MAR-06 17:52:00 to 30-MAR-06 17:52:00 (CST)
Location: REDFIELD
Magnitude: 66 MG
Property damage: 15K
Reported by: AWOS,ASOS,MESONET,ETC

Thunderstorm Wind in CALHOUN, IOWA
From 30-MAR-06 17:52:00 to 30-MAR-06 17:52:00 (CST)
Location: MANSON
Magnitude: 65 EG
Property damage: 40K
Reported by: LAW ENFORCEMENT

Thunderstorm Wind in RINGGOLD, IOWA
From 30-MAR-06 17:55:00 to 30-MAR-06 17:55:00 (CST)
Location: MT AYR
Magnitude: 52 EG
Property damage: 2K
Reported by: TRAINED SPOTTER

Thunderstorm Wind in MADISON, IOWA
From 30-MAR-06 17:56:00 to 30-MAR-06 17:56:00 (CST)
Location: EARLHAM
Magnitude: 50 EG
Reported by: TRAINED SPOTTER

Tornado in UNION, IOWA
From 30-MAR-06 17:57:00 to 30-MAR-06 17:57:00 (CST)
Location: CRESTON
Tornado F-scale: F0
Property damage: 40K
Reported by: AMATEUR RADIO

Tornado touched down briefly west of Creston.  Damage was done to an attached two-car breezeway and tore it away from the house.  There was little apparent damage to the car inside.

Hail in POLK, IOWA
From 30-MAR-06 18:00:00 to 30-MAR-06 18:00:00 (CST)
Location: DES MOINES
Magnitude: 1.25 
Property damage: 5K
Reported by: AMATEUR RADIO

Thunderstorm Wind in POCAHONTAS, IOWA
From 30-MAR-06 18:00:00 to 30-MAR-06 18:00:00 (CST)
Location: PALMER
Magnitude: 61 EG
Property damage: 10K
Reported by: TRAINED SPOTTER

Tornado in UNION, IOWA
From 30-MAR-06 18:00:00 to 30-MAR-06 18:00:00 (CST)
Location: CRESTON ARPT
Tornado F-scale: F0
Reported by: FIRE DEPT/RESCUE SQUAD

Brief touchdown in open field.

Tornado in DALLAS, IOWA
From 30-MAR-06 18:04:00 to 30-MAR-06 18:04:00 (CST)
Location: DE SOTO
Tornado F-scale: F0
Reported by: LAW ENFORCEMENT

Brief touchdown in open fields.

Thunderstorm Wind in DALLAS, IOWA
From 30-MAR-06 18:07:00 to 30-MAR-06 18:07:00 (CST)
Location: ADEL
Magnitude: 50 EG
Reported by: TRAINED SPOTTER

Thunderstorm Wind in WEBSTER, IOWA
From 30-MAR-06 18:08:00 to 30-MAR-06 18:08:00 (CST)
Location: VINCENT
Magnitude: 61 EG
Property damage: 50K
Reported by: EMERGENCY MANAGER

Thunderstorm Wind in DALLAS, IOWA
From 30-MAR-06 18:11:00 to 30-MAR-06 18:11:00 (CST)
Location: MINBURN
Magnitude: 52 EG
Property damage: 1K
Reported by: TRAINED SPOTTER

Thunderstorm Wind in AUDUBON, IOWA
From 30-MAR-06 14:45:00 to 30-MAR-06 14:45:00 (CST)
Location: AUDUBON ARPT
Magnitude: 61 EG
Property damage: 15K
Reported by: TRAINED SPOTTER

Hail in CRAWFORD, IOWA
From 30-MAR-06 15:40:00 to 30-MAR-06 15:40:00 (CST)
Location: CHARTER OAK
Magnitude: 0.75 
Reported by: EMERGENCY MANAGER

Thunderstorm Wind in CRAWFORD, IOWA
From 30-MAR-06 16:55:00 to 30-MAR-06 16:55:00 (CST)
Location: DENISON
Magnitude: 61 EG
Property damage: 20K
Reported by: LAW ENFORCEMENT

Hail in POLK, IOWA
From 30-MAR-06 17:38:00 to 30-MAR-06 17:38:00 (CST)
Location: DES MOINES
Magnitude: 1.50 
Property damage: 25K
Reported by: TRAINED SPOTTER

Hail in POLK, IOWA
From 30-MAR-06 17:38:00 to 30-MAR-06 17:38:00 (CST)
Location: DES MOINES
Magnitude: 0.88 
Property damage: 2K
Reported by: FIRE DEPT/RESCUE SQUAD

Hail in POLK, IOWA
From 30-MAR-06 17:39:00 to 30-MAR-06 17:39:00 (CST)
Location: DES MOINES ARPT
Magnitude: 1.00 
Property damage: 3K
Reported by: AMATEUR RADIO

Thunderstorm Wind in GUTHRIE, IOWA
From 30-MAR-06 17:40:00 to 30-MAR-06 17:40:00 (CST)
Location: CASEY
Magnitude: 61 EG
Property damage: 100K
Reported by: BROADCAST MEDIA

Hail in POLK, IOWA
From 30-MAR-06 17:41:00 to 30-MAR-06 17:41:00 (CST)
Location: ALTOONA
Magnitude: 0.88 
Property damage: 3K
Reported by: TRAINED SPOTTER

Hail in POLK, IOWA
From 30-MAR-06 17:42:00 to 30-MAR-06 17:42:00 (CST)
Location: DES MOINES
Magnitude: 2.00 
Property damage: 50K
Reported by: AMATEUR RADIO

Thunderstorm Wind in CALHOUN, IOWA
From 30-MAR-06 17:43:00 to 30-MAR-06 17:43:00 (CST)
Location: ROCKWELL CITY
Magnitude: 52 MG
Property damage: 2K
Reported by: AWOS,ASOS,MESONET,ETC

Thunderstorm Wind in ADAIR, IOWA
From 30-MAR-06 17:44:00 to 30-MAR-06 17:44:00 (CST)
Location: ADAIR
Magnitude: 61 EG
Property damage: 20K
Reported by: UNKNOWN

Thunderstorm Wind in UNION, IOWA
From 30-MAR-06 17:45:00 to 30-MAR-06 17:45:00 (CST)
Location: CRESTON
Magnitude: 52 EG
Property damage: 1K
Reported by: EMERGENCY MANAGER

Thunderstorm Wind in CRAWFORD, IOWA
From 30-MAR-06 17:00:00 to 30-MAR-06 17:00:00 (CST)
Location: ASPINWALL
Magnitude: 61 EG
Property damage: 25K
Reported by: TRAINED SPOTTER

Thunderstorm Wind in CRAWFORD, IOWA
From 30-MAR-06 17:00:00 to 30-MAR-06 17:00:00 (CST)
Location: ASPINWALL
Magnitude: 61 EG
Property damage: 30K
Reported by: TRAINED SPOTTER

Thunderstorm Wind in TAYLOR, IOWA
From 30-MAR-06 17:25:00 to 30-MAR-06 17:25:00 (CST)
Location: BEDFORD
Magnitude: 52 EG
Property damage: 2K
Reported by: AMATEUR RADIO

Thunderstorm Wind in FRANKLIN, IOWA
From 30-MAR-06 19:13:00 to 30-MAR-06 19:13:00 (CST)
Location: LATIMER
Magnitude: 70 EG
Property damage: 20K
Reported by: BROADCAST MEDIA

Thunderstorm Wind in FRANKLIN, IOWA
From 30-MAR-06 19:14:00 to 30-MAR-06 19:14:00 (CST)
Location: LATIMER
Magnitude: 61 EG
Property damage: 10K
Reported by: EMERGENCY MANAGER

Thunderstorm Wind in FRANKLIN, IOWA
From 30-MAR-06 19:18:00 to 30-MAR-06 19:18:00 (CST)
Location: LATIMER
Magnitude: 63 MG
Property damage: 5K
Reported by: AWOS,ASOS,MESONET,ETC

Thunderstorm Wind in FRANKLIN, IOWA
From 30-MAR-06 19:08:00 to 30-MAR-06 19:08:00 (CST)
Location: LATIMER
Magnitude: 65 EG
Property damage: 20K
Reported by: EMERGENCY MANAGER

Thunderstorm Wind in MARSHALL, IOWA
From 30-MAR-06 19:10:00 to 30-MAR-06 19:10:00 (CST)
Location: CLEMONS
Magnitude: 57 EG
Property damage: 5K
Reported by: TRAINED SPOTTER

Thunderstorm Wind in HARDIN, IOWA
From 30-MAR-06 19:21:00 to 30-MAR-06 19:21:00 (CST)
Location: ACKLEY
Magnitude: 65 EG
Property damage: 25K
Reported by: TRAINED SPOTTER

Thunderstorm Wind in CERRO GORDO, IOWA
From 30-MAR-06 19:38:00 to 30-MAR-06 19:38:00 (CST)
Location: MASON CITY
Magnitude: 61 EG
Property damage: 10K
Reported by: LAW ENFORCEMENT

Thunderstorm Wind in CERRO GORDO, IOWA
From 30-MAR-06 19:40:00 to 30-MAR-06 19:40:00 (CST)
Location: MASON CITY
Magnitude: 61 EG
Property damage: 10K
Reported by: EMERGENCY MANAGER

Thunderstorm Wind in BUTLER, IOWA
From 30-MAR-06 19:40:00 to 30-MAR-06 19:40:00 (CST)
Location: ALLISON
Magnitude: 61 EG
Property damage: 15K
Reported by: GENERAL PUBLIC

Thunderstorm Wind in BUTLER, IOWA
From 30-MAR-06 19:40:00 to 30-MAR-06 19:40:00 (CST)
Location: CLARKSVILLE
Magnitude: 61 EG
Property damage: 10K
Reported by: GENERAL PUBLIC

Thunderstorm Wind in GRUNDY, IOWA
From 30-MAR-06 19:45:00 to 30-MAR-06 19:45:00 (CST)
Location: GRUNDY CENTER
Magnitude: 57 EG
Property damage: 5K
Reported by: LAW ENFORCEMENT

Hail in DECATUR, IOWA
From 30-MAR-06 20:55:00 to 30-MAR-06 20:55:00 (CST)
Location: VAN WERT
Magnitude: 1.25 
Property damage: 3K
Reported by: FIRE DEPT/RESCUE SQUAD

Hail in LUCAS, IOWA
From 30-MAR-06 21:18:00 to 30-MAR-06 21:18:00 (CST)
Location: LUCAS
Magnitude: 1.50 
Property damage: 5K
Reported by: LAW ENFORCEMENT

Thunderstorm Wind in SAC, IOWA
From 30-MAR-06 17:15:00 to 30-MAR-06 17:15:00 (CST)
Location: LAKE VIEW
Magnitude: 65 EG
Property damage: 20K
Reported by: NEWSPAPER

Thunderstorm Wind in POCAHONTAS, IOWA
From 30-MAR-06 17:45:00 to 30-MAR-06 17:45:00 (CST)
Location: LAURENS
Magnitude: 52 EG
Property damage: 5K
Reported by: NEWSPAPER

Thunderstorm Wind in HARDIN, IOWA
From 30-MAR-06 19:07:00 to 30-MAR-06 19:07:00 (CST)
Location: ELDORA
Magnitude: 52 EG
Property damage: 10K
Reported by: NEWSPAPER

Thunderstorm Wind in HARDIN, IOWA
From 30-MAR-06 19:12:00 to 30-MAR-06 19:12:00 (CST)
Location: HUBBARD
Magnitude: 52 EG
Property damage: 5K
Reported by: NEWSPAPER