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Iowa storm reports for May 4, 2012

NOAA recorded 16 hail reports, 20 wind reports and 4 tornado reports in Iowa on May 4, 2012.

in Iowa
40
Storm reports
Near 42.74, -94.67, IA
1.75 in
Largest hail
About 51 miles from Sioux Falls, SD
79 mph
Highest gust
Highest rating EF1, near 43.49, -93.77, IA
4
Tornado reports
Sources: NOAA/NWS Storm Prediction Center reports; damage surveys from the NWS Damage Assessment Toolkit

Hail, inches

  • 0.75
  • 1
  • 1.5
  • 2
  • 2.5
  • 3+

Dots: reports.

  • Wind report
  • Tornado and its path
  • Surveyed tornado path

Source: NOAA/NWS Storm Prediction Center, final severe weather database (from NOAA's Storm Data). Report day: 12:00 UTC on May 4, 2012 to 12:00 UTC the next day. Times are Central.

Select a dot or a path for the report. NWS survey teams walked the shaded paths after the storm; each is drawn at the widest width they found, so it can look wider than the damage at any one spot.

Reports by hour

Hail16, most at 5 PM

Wind20, most at 3 PM

Tornado4, most at 3 PM

Reports per hour, Central time. Each row has its own scale.

Every report

Source: NOAA/NWS Storm Prediction Center.

TimeRatingWherePath
3:15 PMEF0About 44 miles from Sioux Falls, SD0.5 mi long, 50 yd wide
3:22 PMEF0About 48 miles from Sioux Falls, SD0.5 mi long, 50 yd wide
3:50 PMEF0Near 43.09, -95.69, IA0.5 mi long, 50 yd wide
5:52 PMEF1Near 43.49, -93.77, IA0.81 mi long, 90 yd wide

Reports are what observers recorded near a location, not a complete record of every storm. They don’t describe conditions at any building.