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The severe wind outbreak of June 18, 1998

342 wind reportsIowa, Illinois, Wisconsin and 11 more states

342 damaging wind reports across 14 states between 4:00 AM and 12:50 AM the next day CDT, 31 of them 65 knots (75 mph) or stronger. 184 hail reports and 22 tornadoes the same day.

Watch the day unfold

Severe wind day · June 18, 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.

About this replay
Central time—Historical replay — logged report times
Wind reports—of 342 that day
Strongest gust—measured, so far
Largest hail—so far

The day in numbers

Wind reports
342
on Thursday, June 18, 1998
75 mph or more
31
8 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
0
20 injured
Counties reporting
237
in 14 states

Hour by hour

Damaging wind reports in each hour, Central Daylight Time.

Wind reports per hour, June 18, 1998 4 AM: 2 5 AM: 1 6 AM: 1 7 AM: 2 8 AM: 4 9 AM: 1 10 AM: 3 11 AM: 12 Noon: 4 1 PM: 19 2 PM: 10 3 PM: 22 4 PM: 32 5 PM: 41 6 PM: 25 7 PM: 23 8 PM: 22 9 PM: 18 10 PM: 50 50 11 PM: 48 Midnight: 2 4 AM7 AM10 AM1 PM4 PM7 PM10 PM

The strongest winds

The 100 strongest reports with a speed. Measured gusts come from an instrument; estimated speeds are judged from damage.

Strongest wind reports, June 18, 1998
3:17 PMChickasaw County IA115 mph100Estimated0
3:20 PMChickasaw County IA110 mph96Estimated0
3:33 PMChickasaw County IA109 mph95Estimated0
3:21 PMTama County IA90 mph78Estimated0
5:15 PMHenry County IL90 mph78Estimated0
8:50 AMNewton County MO86 mph75Estimated0
4:00 PMAdair County MO86 mph75Estimated0
7:40 PMJefferson County OK86 mph75Estimated0
3:30 PMPoweshiek County IA85 mph74Estimated0
1:59 PMClay County MO81 mph70Estimated0
4:15 PMWinneshiek County IA81 mph70Estimated0
5:36 PMCreek County OK81 mph70Estimated0
6:32 PMMuskogee County OK81 mph70Estimated0
10:15 PMAllegan County MI81 mph70Estimated0
11:18 PMShannon County MO81 mph70Estimated0
10:40 AMHamilton County IA79 mph69Estimated0
11:13 AMPolk County IA79 mph69Estimated0
11:38 AMPolk County IA79 mph69Estimated0
3:38 PMPoweshiek County IA79 mph69Estimated0
11:41 AMStory County IA75 mph65Estimated0
3:00 PMJasper County IA75 mph65Estimated0
3:20 PMCass County MO75 mph65Estimated0
3:48 PMPoweshiek County IA75 mph65Estimated0
4:18 PMBates County MO75 mph65Estimated0
6:00 PMLinn County IA75 mph65Estimated0
7:45 PMJefferson County OK75 mph65Estimated0
9:05 PMCarter County OK75 mph65Estimated0
10:30 PMWashington County IL75 mph65Estimated0
10:40 PMWashington County IL75 mph65Estimated0
10:45 PMWashington County IL75 mph65Estimated0
10:45 PMWashington County IL75 mph65Estimated0
8:05 PMKendall County IL74 mph64Estimated0
10:04 PMSt. Clair County IL74 mph64Estimated0
3:32 PMPoweshiek County IA72 mph63Estimated0
5:00 AMHardin County IA70 mph61Estimated0
10:28 AMWebster County IA70 mph61Estimated0
1:05 PMOlmsted County MN70 mph61Estimated0
2:10 PMJasper County IA70 mph61Estimated0
3:40 PMBlack Hawk County IA70 mph61Estimated0
4:00 PMDavis County IA70 mph61Estimated0
4:00 PMBuchanan County IA70 mph61Estimated0
5:59 PMTulsa County OK70 mph61Estimated0
6:00 PMTulsa County OK70 mph61Estimated0
6:10 PMJuneau County WI70 mph61Estimated0
7:33 PMDallas County MO70 mph61Estimated0
7:40 PMSangamon County IL70 mph61Estimated0
8:20 PMWill County IL70 mph61Estimated0
9:16 PMLove County OK70 mph61Estimated0
9:55 PMColes County IL70 mph61Estimated0
10:05 PMRandolph County IL70 mph61Estimated0
10:15 PMRandolph County IL70 mph61Estimated0
10:59 PMCooke County TX70 mph61Estimated0
11:40 PMWabash County IN70 mph61Estimated0
7:56 AMPettis County MO69 mph60Estimated0
8:55 AMSaline County MO69 mph60Estimated0
11:00 AMCooper County MO69 mph60Estimated0
1:32 PMLeavenworth County KS69 mph60Estimated0
1:48 PMWorth County MO69 mph60Estimated0
1:50 PMGentry County MO69 mph60Estimated0
2:30 PMRay County MO69 mph60Estimated0
2:32 PMJohnson County KS69 mph60Estimated0
2:50 PMMiami County KS69 mph60Estimated0
2:55 PMClay County MO69 mph60Estimated0
3:19 PMRay County MO69 mph60Estimated0
4:00 PMAdair County MO69 mph60Estimated0
4:15 PMSchuyler County MO69 mph60Estimated0
4:40 PMHenry County MO69 mph60Estimated0
5:20 PMCooper County MO69 mph60Estimated0
5:25 PMVernon County WI69 mph60Estimated0
5:45 PMMonroe County WI69 mph60Estimated0
7:00 PMCallaway County MO69 mph60Estimated0
9:30 PMVermilion County IL69 mph60Estimated0
10:20 PMClinton County IL69 mph60Estimated0
10:40 PMClinton County IL69 mph60Estimated0
11:50 PMFayette County IN69 mph60Estimated0
11:52 PMWayne County IN69 mph60Estimated0
11:57 PMUnion County IN69 mph60Estimated0
10:55 PMMarion County IL68 mph59Estimated0
1:00 PMOlmsted County MN67 mph58Estimated0
1:38 PMPlatte County MO67 mph58Estimated0
4:15 PMBourbon County KS67 mph58Estimated0
5:20 PMCrawford County WI67 mph58Estimated0
11:40 PMMarion County IL67 mph58Estimated0
5:25 PMGrant County WI66 mph57Estimated0
5:40 PMOkmulgee County OK66 mph57Estimated0
6:00 PMJuneau County WI66 mph57Estimated0
6:05 PMRichland County WI66 mph57Estimated0
4:00 AMKossuth County IA64 mph56Estimated0
8:00 AMWayne County IA64 mph56Estimated0
8:00 AMLucas County IA64 mph56Estimated0
11:22 AMWarren County IA64 mph56Estimated0
11:45 AMPolk County IA64 mph56Estimated0
12:33 PMStory County IA64 mph56Estimated0
1:50 PMHardin County IA64 mph56Estimated0
2:45 PMMarshall County IA64 mph56Estimated0
3:15 PMStephenson County IL64 mph56Estimated0
3:17 PMMonroe County IA64 mph56Estimated0
4:30 PMLinn County IA64 mph56Estimated0
4:45 PMGrant County WI64 mph56Estimated0
4:45 PMCrawford County WI64 mph56Estimated0

By state

Severe weather reports by state, June 18, 1998
Iowa74—254.50
Illinois61—133.00
Wisconsin50—10.75
Indiana47—10.75
Missouri41—482.00
Oklahoma25—554.50
Michigan17—10.75
Arkansas9—10.88
Minnesota7—71.75
Kansas4—132.00
Florida3—51.00
Georgia2—0—
Texas1—111.75
Ohio1—0—
North Dakota0—20.75
Nebraska0—11.00

Counties with the most wind reports

Hail and tornadoes that day

184 hail reports, 16 of 2 inches or more; 22 tornadoes.

Largest hail, June 18, 1998
4:30 PMDelaware County IA4.50
5:19 PMCreek County OK4.50
5:25 PMRock Island County IL3.00
4:30 PMJohnson County IA2.75
5:17 PMCreek County OK2.75
5:41 PMTulsa County OK2.75
6:44 PMMuskogee County OK2.75
7:40 PMOkmulgee County OK2.75
5:33 PMTulsa County OK2.50
9:00 PMHaskell County OK2.50
10:15 AMBenton County MO2.00
1:20 PMLeavenworth County KS2.00
4:20 PMLinn County IA2.00
5:12 PMCreek County OK2.00
5:50 PMTulsa County OK2.00
8:40 PMPittsburg County OK2.00
4:15 AMPecos County TX1.75
10:43 AMBoone County IA1.75
1:05 PMTaylor County IA1.75
1:40 PMDallas County IA1.75
1:49 PMWyandotte County KS1.75
4:05 PMBenton County IA1.75
4:20 PMJohnson County IA1.75
4:30 PMJohnson County IA1.75
4:45 PMVernon County MO1.75
4:45 PMCreek County OK1.75
5:00 PMRock Island County IL1.75
5:05 PMJones County IA1.75
5:10 PMPettis County MO1.75
5:11 PMCrawford County KS1.75
5:20 PMBenton County IA1.75
5:25 PMCrawford County KS1.75
5:30 PMMuscatine County IA1.75
5:50 PMJo Daviess County IL1.75
6:30 PMMuskogee County OK1.75
6:36 PMOkfuskee County OK1.75
6:40 PMBureau County IL1.75
7:00 PMJefferson County OK1.75
7:14 PMDallas County MO1.75
7:30 PMStephens County OK1.75
8:16 PMJefferson County OK1.75
8:45 PMRenville County MN1.75
9:01 PMLatimer County OK1.75
9:15 PMWebster County MO1.75
9:33 PMPittsburg County OK1.75
9:45 PMJefferson County OK1.75
9:55 PMHaskell County OK1.75
10:00 PMLatimer County OK1.75
10:30 PMMontague County TX1.75
11:17 PMLatimer County OK1.75
  • F1 tornado2:04 PM CDT
  • F0 tornado2:10 PM CDT
  • F0 tornado3:10 PM CDT
  • F2 tornado3:30 PM CDT
  • F1 tornado3:40 PM CDT
  • F1 tornado3:55 PM CDT
  • F0 tornado4:00 PM CDT
  • F0 tornado4:07 PM CDT
  • F1 tornado4:18 PM CDT
  • F0 tornado4:40 PM CDT
  • F0 tornado4:41 PM CDT
  • F1 tornado5:00 PM CDT
  • F1 tornado5:07 PM CDT
  • F0 tornado5:10 PM CDT
  • F0 tornado5:10 PM CDT
  • F2 tornado5:10 PM CDT
  • F0 tornado5:30 PM CDT
  • F0 tornado6:30 PM CDT
  • F0 tornado6:40 PM CDT
  • F0 tornado6:55 PM CDT
  • F0 tornado7:08 PM CDT
  • F0 tornado9:57 PM CDT

1998 · On this date in other years · The biggest severe wind days

  1. 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.
  2. Reporting has grown with population, spotter networks and the internet, so counts from different decades are not directly comparable.
  3. 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.