The severe wind outbreak of June 29, 1998
336 wind reportsIowa, Illinois, Indiana and 15 more states
336 damaging wind reports across 18 states between 1:00 AM and 11:48 PM CDT, 70 of them 65 knots (75 mph) or stronger. 94 hail reports and 27 tornadoes the same day.
Watch the day unfoldSevere wind day · June 29, 1998
How the day unfolded
Every damaging wind report of the day at its logged time, with the day's hail reports and tornadoes, and the counties they reached.
The day in numbers
- Wind reports
- 336
- on Monday, June 29, 1998
- 75 mph or more
- 70
- 19 of 86 mph (75 knots) or more
- Strongest measured gust
- —
- No measured gust reported
- Measured
- 0
- reports with an instrument reading; the rest are estimates from damage
- Killed by wind
- 1
- 88 injured
- Counties reporting
- 256
- in 18 states
Hour by hour
Damaging wind reports in each hour, Central Daylight Time.
The strongest winds
The 100 strongest reports with a speed. Measured gusts come from an instrument; estimated speeds are judged from damage.
| 3:05 PM | Washington County IA | 123 mph | Estimated |
| 1:47 PM | Polk County IA | 120 mph | Estimated |
| 1:50 PM | Polk County IA | 120 mph | Estimated |
| 5:10 PM | De Witt County IL | 110 mph | Estimated |
| 3:45 PM | McDonough County IL | 109 mph | Estimated |
| 7:43 PM | Clay County MO | 104 mph | Estimated |
| 1:40 PM | Dallas County IA | 100 mph | Estimated |
| 2:05 PM | Polk County IA | 100 mph | Estimated |
| 2:46 PM | Washington County IA | 96 mph | Estimated |
| 4:40 PM | Tazewell County IL | 96 mph | Estimated |
| 2:00 PM | Polk County IA | 92 mph | Estimated |
| 2:00 PM | Polk County IA | 92 mph | Estimated |
| 6:45 PM | Buchanan County MO | 92 mph | Estimated |
| 3:07 PM | Muscatine County IA | 90 mph | Estimated |
| 3:40 PM | Warren County IL | 90 mph | Estimated |
| 7:30 PM | Jefferson County KS | 90 mph | Estimated |
| 4:16 PM | McDonough County IL | 87 mph | Estimated |
| 4:50 AM | Johnson County KS | 86 mph | Estimated |
| 9:00 PM | Cass County MO | 86 mph | Estimated |
| 1:15 PM | Dallas County IA | 85 mph | Estimated |
| 2:25 PM | Poweshiek County IA | 85 mph | Estimated |
| 3:30 PM | Henderson County IL | 85 mph | Estimated |
| 7:53 PM | Douglas County KS | 85 mph | Estimated |
| 5:42 PM | Champaign County IL | 83 mph | Estimated |
| 3:55 AM | Jackson County MO | 82 mph | Estimated |
| 4:38 AM | Johnson County MO | 81 mph | Estimated |
| 10:25 AM | Knox County NE | 81 mph | Estimated |
| 1:46 PM | Jasper County IA | 81 mph | Estimated |
| 1:53 PM | Iowa County IA | 81 mph | Estimated |
| 1:53 PM | Benton County IA | 81 mph | Estimated |
| 3:07 PM | Louisa County IA | 81 mph | Estimated |
| 3:30 PM | McDonough County IL | 81 mph | Estimated |
| 3:40 PM | Lee County IA | 81 mph | Estimated |
| 3:44 PM | Louisa County IA | 81 mph | Estimated |
| 3:46 PM | Muscatine County IA | 81 mph | Estimated |
| 4:48 PM | Bureau County IL | 81 mph | Estimated |
| 5:00 PM | McLean County IL | 81 mph | Estimated |
| 6:12 PM | Coles County IL | 81 mph | Estimated |
| 7:35 PM | Leavenworth County KS | 81 mph | Estimated |
| 8:40 PM | Miami County KS | 81 mph | Estimated |
| 8:55 PM | Lafayette County MO | 81 mph | Estimated |
| 12:40 PM | Carroll County IA | 79 mph | Estimated |
| 1:10 PM | Boone County IA | 79 mph | Estimated |
| 1:43 PM | Polk County IA | 79 mph | Estimated |
| 1:45 PM | Marshall County IA | 79 mph | Estimated |
| 1:49 PM | Polk County IA | 79 mph | Estimated |
| 1:57 PM | Tama County IA | 79 mph | Estimated |
| 2:00 PM | Tama County IA | 79 mph | Estimated |
| 2:28 PM | Mahaska County IA | 79 mph | Estimated |
| 2:30 PM | Poweshiek County IA | 79 mph | Estimated |
| 2:38 PM | Mahaska County IA | 79 mph | Estimated |
| 4:18 PM | Marion County IA | 79 mph | Estimated |
| 3:09 PM | Linn County IA | 78 mph | Estimated |
| 7:04 PM | Platte County MO | 77 mph | Estimated |
| 11:25 AM | Wayne County NE | 75 mph | Estimated |
| 11:45 AM | Thurston County NE | 75 mph | Estimated |
| 12:15 PM | Monona County IA | 75 mph | Estimated |
| 12:15 PM | Monona County IA | 75 mph | Estimated |
| 12:45 PM | Hamilton County IA | 75 mph | Estimated |
| 12:50 PM | Hamilton County IA | 75 mph | Estimated |
| 2:11 PM | Keokuk County IA | 75 mph | Estimated |
| 2:15 PM | Warren County IA | 75 mph | Estimated |
| 2:20 PM | Marion County IA | 75 mph | Estimated |
| 2:22 PM | Jasper County IA | 75 mph | Estimated |
| 2:35 PM | Mahaska County IA | 75 mph | Estimated |
| 2:35 PM | Poweshiek County IA | 75 mph | Estimated |
| 3:35 PM | Dallas County IA | 75 mph | Estimated |
| 7:30 PM | Hendricks County IN | 75 mph | Estimated |
| 7:43 PM | Wyandotte County KS | 75 mph | Estimated |
| 8:07 PM | Johnson County KS | 75 mph | Estimated |
| 8:05 PM | Marion County IN | 74 mph | Estimated |
| 3:05 PM | Linn County IA | 72 mph | Estimated |
| 2:46 PM | Wapello County IA | 71 mph | Estimated |
| 4:30 AM | Callaway County MO | 70 mph | Estimated |
| 12:20 PM | Monona County IA | 70 mph | Estimated |
| 1:23 PM | Grundy County IA | 70 mph | Estimated |
| 1:25 PM | Story County IA | 70 mph | Estimated |
| 1:29 PM | Boone County IA | 70 mph | Estimated |
| 1:40 PM | Grundy County IA | 70 mph | Estimated |
| 1:47 PM | Polk County IA | 70 mph | Estimated |
| 1:48 PM | Polk County IA | 70 mph | Estimated |
| 2:20 PM | Marion County IA | 70 mph | Estimated |
| 4:08 PM | Fulton County IL | 70 mph | Estimated |
| 4:50 PM | Logan County IL | 70 mph | Estimated |
| 5:10 PM | Sangamon County IL | 70 mph | Estimated |
| 5:50 PM | Kendall County IL | 70 mph | Estimated |
| 8:15 PM | Jackson County KS | 70 mph | Estimated |
| 9:30 PM | Lyon County KS | 70 mph | Estimated |
| 10:10 PM | Coffey County KS | 70 mph | Estimated |
| 10:59 PM | Neosho County KS | 70 mph | Estimated |
| 11:03 PM | Neosho County KS | 70 mph | Estimated |
| 3:35 AM | Wyandotte County KS | 69 mph | Estimated |
| 4:30 AM | Lafayette County MO | 69 mph | Estimated |
| 4:40 PM | Robeson County NC | 69 mph | Estimated |
| 5:10 PM | Lake County FL | 69 mph | Estimated |
| 7:10 PM | Fayette County IL | 69 mph | Estimated |
| 7:20 PM | Fayette County IL | 69 mph | Estimated |
| 8:20 PM | Bartholomew County IN | 69 mph | Estimated |
| 8:25 PM | Audrain County MO | 69 mph | Estimated |
| 9:04 PM | Crawford County IN | 69 mph | Estimated |
By state
Counties with the most wind reports
- Polk CountyIA · 9 reports
- Jasper CountyIA · 5 reports
- Dallas CountyIA · 4 reports
- Poweshiek CountyIA · 4 reports
- Marion CountyIA · 4 reports
- Tama CountyIA · 4 reports
- Marion CountyIN · 3 reports
- McDonough CountyIL · 3 reports
- Hamilton CountyIA · 3 reports
- Mahaska CountyIA · 3 reports
Hail and tornadoes that day
94 hail reports, 10 of 2 inches or more; 27 tornadoes.
| 6:56 PM | Pottawatomie County KS | 4.00 |
| 3:35 PM | York County NE | 2.75 |
| 9:50 PM | Coffey County KS | 2.75 |
| 3:50 PM | Polk County IA | 2.50 |
| 9:50 AM | Holt County NE | 2.00 |
| 10:45 AM | Knox County NE | 2.00 |
| 4:20 PM | Saline County NE | 2.00 |
| 4:26 PM | Erie County PA | 2.00 |
| 4:50 PM | Lake County FL | 2.00 |
| 6:50 PM | Cheyenne County CO | 2.00 |
| 11:20 AM | Wayne County NE | 1.75 |
| 3:30 PM | Seward County NE | 1.75 |
| 3:43 PM | Polk County IA | 1.75 |
| 3:45 PM | Guthrie County IA | 1.75 |
| 3:50 PM | Seward County NE | 1.75 |
| 4:05 PM | Montgomery County NY | 1.75 |
| 4:05 PM | Warren County IA | 1.75 |
| 4:30 PM | Lancaster County NE | 1.75 |
| 4:51 PM | Lancaster County NE | 1.75 |
| 5:45 PM | Cattaraugus County NY | 1.75 |
| 6:12 PM | Nemaha County KS | 1.75 |
| 6:15 PM | Ringgold County IA | 1.75 |
| 6:20 PM | Logan County KS | 1.75 |
| 6:23 PM | Scott County KS | 1.75 |
| 6:30 PM | Franklin County NY | 1.75 |
| 6:30 PM | Wayne County IA | 1.75 |
| 6:38 PM | Brown County KS | 1.75 |
| 6:45 PM | Scott County KS | 1.75 |
| 7:02 PM | Thomas County KS | 1.75 |
| 7:05 PM | Jackson County KS | 1.75 |
| 7:30 PM | Jefferson County KS | 1.75 |
| 8:45 PM | Macon County MO | 1.75 |
| 9:50 PM | Coffey County KS | 1.75 |
| 10:23 PM | Linn County KS | 1.75 |
| 1:30 PM | Horry County SC | 1.50 |
| 3:09 PM | Polk County NE | 1.50 |
| 5:20 PM | Logan County KS | 1.25 |
| 11:55 PM | El Paso County CO | 1.25 |
| 3:04 AM | Jefferson County KS | 1.00 |
| 4:25 AM | Stark County OH | 1.00 |
| 9:40 AM | Holt County NE | 1.00 |
| 9:55 AM | Boyd County NE | 1.00 |
| 1:54 PM | Putnam County OH | 1.00 |
| 3:20 PM | Liberty County GA | 1.00 |
| 4:15 PM | Schoharie County NY | 1.00 |
| 4:30 PM | Somerset County ME | 1.00 |
| 4:47 PM | Lancaster County NE | 1.00 |
| 5:10 PM | Gage County NE | 1.00 |
| 5:15 PM | Colleton County SC | 1.00 |
| 5:42 PM | Kankakee County IL | 1.00 |
- F2 tornado12:52 PM CDT
- F2 tornado1:20 PM CDT
- F1 tornado1:43 PM CDT
- F1 tornado1:50 PM CDT
- F1 tornado3:40 PM CDT
- F0 tornado3:50 PM CDT
- F0 tornado3:50 PM CDT
- F0 tornado4:08 PM CDT
- F1 tornado4:09 PM CDT
- F1 tornado4:20 PM CDT
- F1 tornado4:22 PM CDT
- F1 tornado4:35 PM CDT
- F0 tornado4:43 PM CDT
- F1 tornado4:45 PM CDT
- F0 tornado5:30 PM CDT
- F0 tornado5:36 PM CDT
- F0 tornado5:58 PM CDT
- F1 tornado6:34 PM CDT
- F0 tornado7:05 PM CDT
- F0 tornado7:10 PM CDT
- F1 tornado7:20 PM CDT
- F0 tornado7:36 PM CDT
- F0 tornado7:45 PM CDT
- F0 tornado7:58 PM CDT
- F0 tornado8:24 PM CDT
- F0 tornado8:46 PM CDT
- F0 tornado9:27 PM CDT
1998 · On this date in other years · The biggest severe wind days
- A report is a single damage or measurement report to the National Weather Service. Several reports can describe one gust front, so reports are not storms.
- Reporting has grown with population, spotter networks and the internet, so counts from different decades are not directly comparable.
- Thunderstorm wind reports start at 50 knots (58 mph). SPC began flagging measured against estimated speeds in 2006; earlier reports are shown as estimated.
Storm Prediction Center severe weather database, 1955 to 2025. A day is SPC’s calendar date in Central Standard Time; a severe wind day here has 300 or more damaging wind reports, or 15 or more of 75 knots (86 mph) or more.