Following the passage of the powerful storm system earlier in the weekend, another round of severe weather was on tap for the state.  The cold front from the previous storm did not move all that far to the south of Iowa.  As a result, warm and moist air was able to move north into Iowa rapidly.  A warm front lifted into southern Iowa during the late afternoon hours, sending temperatures into the 80s over parts of southern Iowa.  Dew point temperatures jumped into the low to mid 60s.  The atmosphere became very unstable with thunderstorms developing along the front.  Most of the storms were associated with the warm front itself,  though  a mesoscale feature moved along the front setting the stage for an additional like of thunderstorms that developed north to south in south central Iowa.  The main feature with the storms was hail.  There were numerous reports of hail ranging from nickel size up to golf ball size.  Several of the storms had well developed meso circulations associated with them.  A few tornadoes resulted.  Two of the tornadoes were very small and only touched down briefly in Tama and Dallas Counties.  The other tornadoes were stronger.  One tornado touched down in Decatur County near Leon.  Two people were injured, one requiring hospitalization, as a mobile home was overturned by the gust front ahead of the storm itself.  The second of the stronger tornadoes moved through Adams County.  A trailer house was overturned and the roofs were removed from two sheds on a farm northeast of Mt. Etna.  Thunderstorms produced very heavy rainfall of one to two inches per hour over Ringgold County.  Total rainfall approached 4 inches in less than 3 hours as storms repeatedly moved across the same areas.  The rain caused flash flooding in the county.  In one instance, Lotts Creek overtopped a road southeast of Mt. Ayr, causing nearly $50,000 in damage as the road washed out.   As the storms moved through Decatur County, lightning stuck a house in Garde Grove.  The house was set on fire, but it was not detected for several hours after the lightning strike.  The house was destroyed and completely burned to the ground.

Hail in POLK, IOWA
From 08-APR-01 18:58:00 to 08-APR-01 18:58:00 (CST)
Location: GRIMES
Magnitude: 1.00 
Property damage: 3K
Reported by: TRAINED SPOTTER

Hail in MADISON, IOWA
From 08-APR-01 19:04:00 to 08-APR-01 19:04:00 (CST)
Location: EARLHAM
Magnitude: 1.00 
Property damage: 4K
Reported by: LAW ENFORCEMENT

Hail in TAYLOR, IOWA
From 08-APR-01 19:12:00 to 08-APR-01 19:12:00 (CST)
Location: CONWAY
Magnitude: 1.75 
Property damage: 10K
Reported by: TRAINED SPOTTER

Hail in POLK, IOWA
From 08-APR-01 19:12:00 to 08-APR-01 19:12:00 (CST)
Location: URBANDALE
Magnitude: 0.75 
Reported by: AMATEUR RADIO

Hail in STORY, IOWA
From 08-APR-01 19:38:00 to 08-APR-01 19:38:00 (CST)
Location: MAXWELL
Magnitude: 1.00 
Property damage: 3K
Reported by: AMATEUR RADIO

Hail in RINGGOLD, IOWA
From 08-APR-01 19:45:00 to 08-APR-01 19:45:00 (CST)
Location: MT AYR
Magnitude: 1.25 
Property damage: 6K
Reported by: TRAINED SPOTTER

Hail in GUTHRIE, IOWA
From 08-APR-01 19:46:00 to 08-APR-01 19:46:00 (CST)
Location: MENLO
Magnitude: 1.00 
Property damage: 4K
Reported by: TRAINED SPOTTER

Hail in GUTHRIE, IOWA
From 08-APR-01 19:56:00 to 08-APR-01 19:56:00 (CST)
Location: MENLO
Magnitude: 1.00 
Property damage: 5K
Reported by: TRAINED SPOTTER

Hail in DALLAS, IOWA
From 08-APR-01 20:19:00 to 08-APR-01 20:19:00 (CST)
Location: WAUKEE
Magnitude: 1.75 
Property damage: 10K
Reported by: AMATEUR RADIO

Tornado in DALLAS, IOWA
From 08-APR-01 20:25:00 to 08-APR-01 20:25:00 (CST)
Location: WAUKEE
Tornado F-scale: F0
Reported by: EMERGENCY MANAGER

Brief touchdown

Hail in JASPER, IOWA
From 08-APR-01 18:37:00 to 08-APR-01 18:37:00 (CST)
Location: MONROE
Magnitude: 1.00 
Property damage: 5K
Reported by: TRAINED SPOTTER

Hail in JASPER, IOWA
From 08-APR-01 18:41:00 to 08-APR-01 18:41:00 (CST)
Location: REASNOR
Magnitude: 0.88 
Property damage: 2K
Reported by: LAW ENFORCEMENT

Hail in POLK, IOWA
From 08-APR-01 18:41:00 to 08-APR-01 18:41:00 (CST)
Location: POLK CITY
Magnitude: 1.75 
Property damage: 15K
Reported by: TRAINED SPOTTER

Hail in POLK, IOWA
From 08-APR-01 18:52:00 to 08-APR-01 18:52:00 (CST)
Location: GRIMES
Magnitude: 1.75 
Property damage: 20K
Reported by: LAW ENFORCEMENT

Hail in POLK, IOWA
From 08-APR-01 18:54:00 to 08-APR-01 18:54:00 (CST)
Location: GRIMES
Magnitude: 1.00 
Property damage: 5K
Reported by: TRAINED SPOTTER

Hail in RINGGOLD, IOWA
From 08-APR-01 21:44:00 to 08-APR-01 21:44:00 (CST)
Location: KELLERTON
Magnitude: 1.00 
Property damage: 4K
Reported by: LAW ENFORCEMENT

Tornado in ADAMS, IOWA
From 08-APR-01 21:49:00 to 08-APR-01 21:51:00 (CST)
Location: MT ETNA
Tornado F-scale: F1
Property damage: 100K
Reported by: EMERGENCY MANAGER

Trailer house overturned and destroyed.  Roofs torn off of two sheds.

Tornado in TAMA, IOWA
From 08-APR-01 21:50:00 to 08-APR-01 21:50:00 (CST)
Location: ELBERON
Tornado F-scale: F0
Reported by: GENERAL PUBLIC

Brief touchdown.

Hail in TAMA, IOWA
From 08-APR-01 21:50:00 to 08-APR-01 21:50:00 (CST)
Location: ELBERON
Magnitude: 0.88 
Property damage: 1K
Reported by: GENERAL PUBLIC

Hail in ADAIR, IOWA
From 08-APR-01 22:10:00 to 08-APR-01 22:10:00 (CST)
Location: ORIENT
Magnitude: 0.88 
Property damage: 2K
Reported by: FIRE DEPT/RESCUE SQUAD

Thunderstorm Wind in DECATUR, IOWA
From 08-APR-01 22:11:00 to 08-APR-01 22:11:00 (CST)
Location: LEON
Magnitude: 71 E
Property damage: 5K
Reported by: TRAINED SPOTTER

Hail in DALLAS, IOWA
From 08-APR-01 20:27:00 to 08-APR-01 20:27:00 (CST)
Location: WAUKEE
Magnitude: 1.00 
Property damage: 3K
Reported by: EMERGENCY MANAGER

Hail in WARREN, IOWA
From 08-APR-01 18:01:00 to 08-APR-01 18:01:00 (CST)
Location: HARTFORD
Magnitude: 1.00 
Property damage: 5K
Reported by: TRAINED SPOTTER

Hail in POLK, IOWA
From 08-APR-01 18:14:00 to 08-APR-01 18:14:00 (CST)
Location: RUNNELLS
Magnitude: 1.00 
Property damage: 5K
Reported by: AMATEUR RADIO

Hail in MARSHALL, IOWA
From 08-APR-01 20:27:00 to 08-APR-01 20:27:00 (CST)
Location: MARSHALLTOWN
Magnitude: 0.88 
Property damage: 1K
Reported by: TRAINED SPOTTER

Hail in POLK, IOWA
From 08-APR-01 20:30:00 to 08-APR-01 20:30:00 (CST)
Location: GRIMES
Magnitude: 1.00 
Property damage: 4K
Reported by: TRAINED SPOTTER

Hail in POLK, IOWA
From 08-APR-01 20:34:00 to 08-APR-01 20:34:00 (CST)
Location: JOHNSTON
Magnitude: 0.75 
Reported by: LAW ENFORCEMENT

Lightning in POLK, IOWA
From 08-APR-01 20:35:00 to 08-APR-01 20:35:00 (CST)
Location: JOHNSTON
Property damage: 100K
Reported by: BROADCAST MEDIA

Tornado in DECATUR, IOWA
From 08-APR-01 20:38:00 to 08-APR-01 20:38:00 (CST)
Location: LAMONI
Tornado F-scale: F0
Property damage: 1K
Reported by: TRAINED SPOTTER

Minor damage in rural area with brief touchdown.

Hail in POLK, IOWA
From 08-APR-01 20:48:00 to 08-APR-01 20:48:00 (CST)
Location: WEST DES MOINES
Magnitude: 1.75 
Property damage: 50K
Reported by: LAW ENFORCEMENT

Hail in DECATUR, IOWA
From 08-APR-01 21:05:00 to 08-APR-01 21:05:00 (CST)
Location: GRAND RIVER
Magnitude: 1.00 
Property damage: 2K
Reported by: TRAINED SPOTTER

Hail in RINGGOLD, IOWA
From 08-APR-01 21:25:00 to 08-APR-01 21:25:00 (CST)
Location: MT AYR
Magnitude: 0.88 
Property damage: 2K
Reported by: EMERGENCY MANAGER

Hail in RINGGOLD, IOWA
From 08-APR-01 21:29:00 to 08-APR-01 21:29:00 (CST)
Location: MT AYR
Magnitude: 1.00 
Property damage: 4K
Reported by: EMERGENCY MANAGER

Lightning in DECATUR, IOWA
From 08-APR-01 22:11:00 to 08-APR-01 22:11:00 (CST)
Location: LEON
Property damage: 5K
Reported by: NEWSPAPER

Hail in WAYNE, IOWA
From 08-APR-01 22:36:00 to 08-APR-01 22:36:00 (CST)
Location: HUMESTON
Magnitude: 0.88 
Property damage: 2K
Reported by: TRAINED SPOTTER

Hail in WAYNE, IOWA
From 08-APR-01 22:56:00 to 08-APR-01 22:56:00 (CST)
Location: MILLERTON
Magnitude: 1.75 
Property damage: 5K
Reported by: LAW ENFORCEMENT

Thunderstorm Wind in DECATUR, IOWA
From 08-APR-01 20:46:00 to 08-APR-01 20:46:00 (CST)
Location: LEON
Magnitude: 61 E
Property damage: 25K
Reported by: NEWSPAPER

Flash Flood in RINGGOLD, IOWA
From 08-APR-01 22:00:00 to 09-APR-01 02:00:00 (CST)
Location: MT AYR
Property damage: 50K
Reported by: NEWSPAPER

Lightning in DECATUR, IOWA
From 08-APR-01 22:30:00 to 08-APR-01 22:30:00 (CST)
Location: GARDEN GROVE
Property damage: 50K
Reported by: NEWSPAPER