National Storms

On the map: every storm report logged this day.

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HailWindTornado

2017 storm days

Storm reports for April 20, 2017

On April 20, 2017, 58 hail, 26 damaging-wind and 2 tornado reports were logged across 12 states.

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58hail reports
26damaging-wind reports
2tornado reports
2.00″largest hail reported

IndependentNot affiliated with NOAA or the National Weather Service. Source: NOAA Storm Prediction Center storm reports. Data through November 6, 2026. Methodology

← Apr 19, 2017 All 2017 storm days · April 2017 Apr 21, 2017 →

Other storms on April 20 →

On April 20, 2017, 58 hail, 26 damaging-wind and 2 tornado reports were logged across 12 states. The largest hail reported was 2.00″ (hen egg size) in Westmoreland County, PA.

Storm day runs 7 a.m. to 7 a.m. Eastern (12:00–12:00 UTC), the convention the Storm Prediction Center uses. Radar hail estimates start October 2019.

Storm reports by state

StateHailWindTornadoLargest hail
PA18712.00″
OK12302.00″
TX14002.00″
IN4210.88″
MI3101.50″
OH4001.50″
MO1300.75″
AR040–
MD030–
WV030–
VA1001.00″
NM1001.00″

Cities with hail reported within 5 miles

CityPopulationLargest report
Plum, PA26,4202.00″
Weatherford, OK12,0472.00″
New Kensington, PA11,8772.00″
Lower Burrell, PA11,5422.00″
Oakmont, PA6,6282.00″
Arnold, PA4,6572.00″
Tarentum, PA4,1832.00″
Springdale, PA3,2722.00″
Brackenridge, PA3,1252.00″
Elgin, OK3,6131.75″
Perryton, TX8,2191.50″
Three Rivers, MI7,9581.50″
New Cordell, OK2,7441.50″
Edmond, OK99,0401.25″
Dumas, TX14,8341.00″
Dalhart, TX8,4431.00″
Corry, PA6,0651.00″
Ottawa, OH4,4221.00″
Timberville, VA3,1041.00″
Union City, PA2,8571.00″
Martinsville, IN11,9520.88″
Huntertown, IN11,4810.75″
Edinboro, PA5,8140.75″
Pittsboro, IN4,2880.75″
Leo-Cedarville, IN3,7610.75″

Hail reports (58)

Time (UTC)SizeLocation
16:432.00″Westmoreland County, PA
19:302.00″Clarion County, PA
05:102.00″Wilbarger County, TX
05:202.00″Custer County, OK
19:251.75″Clarion County, PA
19:581.75″Jefferson County, PA
05:081.75″Custer County, OK
05:451.75″Comanche County, OK
05:571.75″Comanche County, OK
17:081.50″Westmoreland County, PA
18:571.50″Clarion County, PA
20:121.50″St. Joseph County, MI
21:101.50″Putnam County, OH
03:291.50″Hall County, TX
04:451.50″Washita County, OK
09:351.50″Hutchinson County, TX
09:471.50″Ochiltree County, TX
16:411.25″Westmoreland County, PA
16:461.25″Allegheny County, PA
17:001.25″Allegheny County, PA
17:151.25″Westmoreland County, PA
18:481.25″Armstrong County, PA
05:571.25″Comanche County, OK
06:141.25″Comanche County, OK
07:351.25″Oklahoma County, OK
10:151.25″Hutchinson County, TX
16:451.00″Westmoreland County, PA
16:501.00″Westmoreland County, PA
17:031.00″Westmoreland County, PA
18:081.00″Calhoun County, MI
19:131.00″Armstrong County, PA
20:551.00″Rockingham County, VA
21:121.00″Putnam County, OH
21:351.00″Putnam County, OH
21:351.00″Hancock County, OH
22:491.00″Erie County, PA
23:101.00″Erie County, PA
04:501.00″Union County, NM
05:121.00″Custer County, OK
06:131.00″Comanche County, OK
06:211.00″Comanche County, OK
06:241.00″Archer County, TX
07:451.00″Montague County, TX
08:001.00″Hartley County, TX
09:231.00″Moore County, TX
09:291.00″Custer County, OK
09:471.00″Ochiltree County, TX
09:521.00″Ochiltree County, TX
09:561.00″Lipscomb County, TX
10:251.00″Ochiltree County, TX
10:281.00″Hutchinson County, TX
20:200.88″St. Joseph County, MI
21:430.88″Morgan County, IN
18:540.75″Allen County, IN
20:380.75″Hendricks County, IN
21:550.75″Greene County, IN
22:050.75″Ripley County, MO
22:170.75″Erie County, PA

Damage, injuries and deaths

National Weather Service offices recorded about $164,000 in property damage from hail, thunderstorm wind and tornadoes across the US on this storm day (86 events in 12 states). Injuries and deaths are those the events caused directly.

CountyEventsInjuriesDeathsProperty damage
Ripley County, MO200$37,000
Decatur County, IN100$35,000
Putnam County, IN100$15,000
Westmoreland County, PA500$13,000
Sebastian County, AR200$12,000
Butler County, MO100$10,000
Sequoyah County, OK100$10,000
Clarion County, PA100$10,000
Warren County, PA100$10,000
Elk County, PA100$7,000
Preston County, WV300$3,000
Butler County, PA100$2,000

What the National Weather Service wrote

Event narratives from NWS Storm Data, shortened. Up to six per day, chosen by deaths, injuries, damage and size.

Source: NOAA National Centers for Environmental Information (NCEI), Storm Events Database, as entered by National Weather Service offices; data through July 31, 2026. Damage is in dollars of the year, not adjusted for inflation.

NWS Tornado Damage Surveys for April 20, 2017

National Weather Service survey teams mapped 1 tornado path from this storm day (1 EF1), 3 miles in all. The map above draws each surveyed path as the NWS mapped it, colored by the EF rating of each stretch, in place of the straight start-to-end line.

RatingPeak windPath lengthMax widthDeaths / injuriesOn the groundSurveyed by
EF195 mph2.8 mi40 yd0 / 023:35–23:39 UTCNWS Indianapolis

Source: NOAA National Weather Service Damage Assessment Toolkit (DAT): the tornado paths and EF-rating zones NWS survey teams mapped after each storm. Survey data are preliminary and can be revised; NOAA's official record is Storm Data (NCEI). Paths are simplified to about 30 m. Times are when the tornado was on the ground, in UTC.

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