The following table depicts unofficial information for tornadoes across all of Iowa.  This information is compiled and updated periodically from the five NWS serving Iowa.  Official information from the National Climatic Data Center (NCDC) in the form of Storm Reports (Form F8) usually takes around three months before being posted.  Official Storm Reports at NCDC can be found by clicking here and filling out the online form.  This dataset is free.

Town County Date Begin Time (CDT) End Time (CDT) Magnitude Length(Mi) Width(Yds) Inj Dth Begin Lat Begin Lon End Lat End Lon  Damage
Sewal Wayne 3/22/2007 12:39 AM 12:41 AM EF0 1.4 35 0 0 40.624900 93.306700 40.630000 93.281000 Trees down and some shingles off roof.  Transport trailer tipped over. 
2 NW Oelwein Fayette 3/31/2007 4:58 PM 4:59 PM EF0 0.25 75 0 0 42.700400 91.927800 42.700400 91.927800 A garage, machine shed, windmill, and trees were all damaged.
Delaware-Garber Delaware-Clayton 3/31/2007 5:29 PM 5:41 PM EF1 11.9 200 0 0 42.548100 91.350000 42.672200 91.270000 A machine shed and barn destroyed. Several Outbuildings receieved minor damage and large trees blown down.
Glenwood Mills 5/5/2007 7:09 PM 7:16 PM EF0 4 80 0 0 40.977700 95..770000 41.035500 95.770000 Remained in open fields with little if any damage.
Shenandoah-Imogene Fremont-Mills 5/5/2007 7:50 PM 8:11 PM EF1 11.8 200 0 0 40.740400 95.443000 40.914200 95.472600 Grain bins blown down…sheds and barns damaged or destroyed.  Trees blown down.
5 NNE Emerson-4 E Carson Montgomery- Pottawatamie 5/5/2007 8:40 PM 8:52 PM EF2 11.5 400 0 0 41.047700 95.318500 41.256200 95.355200 Roof off home…barns destroyed…cars thrown into field…trees and power poles down
3 E Oakland Pottawatamie 5/5/2007 9:00 PM 9:06 PM EF1 3.6 200 0 0 41.309800 95.386400 41.355800 95.352300 Trees and power poles down…barns and sheds destroyed
Griswold Cass 5/6/2007 2:40 AM 2:49 AM EF2 7.4 830 0 0 41.178300 94.984000 41.250500 94.942500 High Voltage Power Transmission Towers downed…destroyed storage buildings.  Down Trees.
3 S Bayard Guthrie 5/6/2007 4:37 AM 4:39 AM EF1 1.2 50 0 0 41.806600 94.570000 41.809900 94.547700 Roof torn off home, barn destroyed and trees damaged.
Thayer-Lorimor Union 5/6/2007 4:45 AM 4:50 AM EF0 4.2 50 0 0 41.060700 94.090700 41.109600 94.042900 Minor Shingle loss and some downed trees.
1 S Holy Cross Dubuque 5/26/2007 4:43 PM EF0 0.8 50 0 0 42.590000 91.000000 42.590000 91.000000 Trees downed and farm equipment damaged.
Grandview to Fruitland to Muscatine Louisa and Muscatine 6/1/2007 12:07 PM 12:31 PM EF3 16 440 3 0 41.269000 91.195000 41.458000 91.026000 continuous swath including demolished post office and farm house.  Numerous houses unroofed and severely damaged.  Numerous businesses damaged.  Rail cars overturned. Grandview and Fruitland werehardest hit.
Lime City Cedar 6/1/2007 12:44 PM 12:45 PM EF1 1 75 0 0 41.684000 91.059000 41.699000 91.056000 trees snapped.
Bellevue Jackson 6/1/2007 2:28 PM 2:38 PM EF2 4 350 0 0 42.204000 90.421000 42.252000 90.404000 trees snapped, 6 houses unroofed, 1 mobile home destroyed.
2 W Ellsworth Hamilton 6/1/2007 5:30 PM 5:30 PM EF0 0.1 30 0 0 42.320000 93.619100 42.320000 93.619100 Tornado touched down very briefly in open field - No damage.
4 N Columbia Marion 6/7/2007 12:48 PM 12:48 PM EF0 0.2 30 0 0 41.240000 93.150000 41.240000 93.150000 Tornado touched down in open country with no damage reported.
2 N Plano Appanoose 6/7/2007 2:35 PM 2:35 PM EF0 0.15 25 0 0 40.780000 93.050000 40.780000 93.050000 Tornado touched down briefly in open countryside.
2 SSE Holmes Wright 6/21/2007 3:55 PM 3:55PM EF0 0.1 25 0 0 42.7N 93.8W 42.7N 93.8W Brief touchdown in open county. No damage
3 S Kesley Butler 6/21/2007 3:55 PM 3:55PM EF0 0.1 25 0 0 42.63N 92.92W 42.63N 92.92W Brief touchdown in open county. No damage
3 WSW Shell Rock Butler 6/21/2007 4:24 PM 4:24PM EF0 0.1 30 0 0 42.71N 92.64W 42.71N 92.64W Brief touchdown in open county. No damage
1WNW Kelly Story 6/21/2007 4:58 PM 4:58 PM EF0 0.1 30 0 0 41.9603N 93.6880W 41.9603N 93.6880W Brief touchdown in open county. No damage
1.5 SSW Castle Hill Black Hawk 6/21/2007 5:22 PM 5:22 PM EF0 0.1 30 0 0 42.5N 92.41W 42.5N 92.41W Brief touchdown with no damage.
Cumming to Norwalk Warren 6/22/2007 4:35 PM 4:49 PM EF2 6.4 150 0 0 41.4883N 93.777W 41.46833N 93.6572W Numerous buildings damaged or destroyed.
Norwalk to 2 N of Spring Hill Warren 6/22/2007 4:40 PM 4:50 PM EF1 3 100 0 0 41.4900N 93.6837W 41.447N 93.683W EF1 damage in Norwalk. Narrow track 


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