Midwest Severe Weather
One of the severe storm disasters on NOAA’s billion-dollar list: $1.8 billion in losses at 2024 prices ($1.4 billion at the time).
What the offices filed during it
The 140 most significant severe storm episodes filed in these dates, colored by kind.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The toll
- Losses, 2024 dollars
- $1.8 billion
- Losses at the time
- $1.4 billion
- Deaths
- 0
The losses and deaths are NCEI’s, counting everything the disaster did. The episodes below are only what the Weather Service filed in its Storm Events record, which counts damage differently and often not at all, so the two never add up and are shown apart.
By state, as filed
| State | Events | Deaths | Injuries | Damage filed |
|---|---|---|---|---|
| New Mexico | 37 | 0 | 0 | $2.3 million |
| Nebraska | 131 | 0 | 0 | $1.7 million |
| Wisconsin | 35 | 0 | 0 | $1.1 million |
| Illinois | 23 | 0 | 0 | $618,000 |
| Vermont | 7 | 0 | 0 | $435,000 |
| Ohio | 15 | 0 | 0 | $337,000 |
| Iowa | 135 | 0 | 1 | $250,000 |
| Louisiana | 5 | 0 | 0 | $150,000 |
| Minnesota | 10 | 0 | 0 | $148,000 |
| Kansas | 91 | 0 | 0 | $119,000 |
| New York | 54 | 0 | 4 | $104,000 |
| Washington | 8 | 0 | 0 | $90,000 |
| Oklahoma | 50 | 0 | 0 | $71,000 |
| Idaho | 9 | 0 | 0 | $64,000 |
| Mississippi | 10 | 0 | 0 | $54,000 |
| Missouri | 50 | 0 | 0 | $22,000 |
| Wyoming | 25 | 0 | 0 | $20,000 |
| Connecticut | 15 | 0 | 0 | $17,000 |
| Pennsylvania | 7 | 0 | 0 | $16,000 |
| Florida | 6 | 2 | 3 | $16,000 |
| Texas | 25 | 0 | 0 | $12,000 |
| Puerto Rico | 3 | 0 | 0 | $7,000 |
| Colorado | 34 | 0 | 0 | $5,000 |
| Oregon | 6 | 0 | 0 | $2,000 |
| Alabama | 1 | 0 | 0 | $2,000 |
| Indiana | 1 | 0 | 0 | $2,000 |
| South Dakota | 72 | 0 | 0 | |
| Virginia | 10 | 0 | 0 | |
| Maine | 7 | 0 | 0 | |
| North Dakota | 7 | 0 | 0 | |
| Montana | 6 | 0 | 0 | |
| Massachusetts | 4 | 0 | 0 | |
| Arkansas | 3 | 0 | 0 | |
| Nevada | 2 | 0 | 0 | |
| New Hampshire | 2 | 0 | 0 | |
| Tennessee | 1 | 1 | 0 | |
| Michigan | 1 | 0 | 0 | |
| South Carolina | 1 | 0 | 0 |
Episode by episode
- Hail and Damaging Winds in Texas, June 25, 2017Decent chance for storms to develop and move across the majority of the area overnight. Due to the increased instability and better shear today, stronger storms expected. Severe storms with large hail and damaging winds being the primary threats.
- Flash Flood in Texas, June 25, 2017Decent chance for storms to develop and move across the majority of the area overnight. Due to the increased instability and better shear today, stronger storms expected. Severe storms with large hail and damaging winds being the primary threats.
- Damaging Winds in Texas, June 25 to 26, 2017Widespread northwest flow storms impacted a large portion of West Texas from late on the 25th through the early morning hours of the 26th.
- Flash Flood in Texas, June 26, 2017An upper level disturbance moved over the area and contributed to storms developing during the afternoon hours of the previous day with good instability.
- Hail in Nebraska, June 26, 2017Scattered thunderstorms developed right around midday along a surface frontal boundary on this Monday.
- Hail in Colorado, June 26, 2017During the afternoon a couple severe thunderstorms moved across East Central Colorado producing large hail. The strongest storm produced large hail up to hen egg size in Wray.
- Lightning Strike in Florida, June 26, 2017A collision of the west and east coast sea breezes generated numerous thunderstorms across east central Florida.
- Hail in Kansas, June 26, 2017A few severe thunderstorms developed along a surface boundary and moved south. The largest hail reported was baseball size near Oakley.
- Flash Flood and Hail in Oregon, June 26, 2017A disturbance, associated with subtropical moisture, caused thunderstorms producing large hail and severe wind gusts over portions of eastern Oregon and southeastern Washington. Also locally heavy rain and local flooding occurred with some storms.
- Hail in New York, June 26, 2017With the area under the influence of unseasonably cool air, an upper air disturbance crossed the region during the afternoon. This spawned a broken line of convection that produced hail of three-quarters to one-inch in diameter.
- Flash Flooding in Louisiana, June 26 to 29, 2017Tropical Storm Cindy made landfall on the 22nd, however the region remained in a very moist and unstable air mass. Numerous thunderstorms with heavy rain lingered over the region for around a week which produced flooding.
- Hail in Nebraska, June 26, 2017Hail up to nickel size was reported at Stratton from a strong thunderstorm.
- Flash Flood and Hail in New Mexico, June 26, 2017Scattered to numerous showers and thunderstorms developed over the central mountain chain once again as low level moisture and instability remained in place over New Mexico.
- Damaging Winds in Idaho, June 26, 2017Moisture ahead of an upper trough situated of the coast of Oregon combined with hot temperatures inland initiating strong to severe thunderstorms across parts of the Treasure Valley of Idaho and Oregon and the Magic Valley in Idaho.
- Hail in Colorado, June 26, 2017A few severe storms produced hail up to the size of golf balls.
- Tornado and Hail in Kansas, June 26, 2017Severe thunderstorms quickly developed over Saline County early in the evening. The first severe thunderstorm spawned a tornado 5 miles north/northeast of Salina where a couple tractor trailers were flipped over on I-70 at the Ohio Street Interchange.
- Flash Flood in New Mexico, June 26, 2017Good low level moisture remained over the region with morning dew points over 60F and a boundary continued to remain near the Rio Grande Valley.
- Flash Flood and Damaging Winds in Washington, June 26, 2017A disturbance, associated with subtropical moisture, caused thunderstorms producing large hail and severe wind gusts over portions of eastern Oregon and southeastern Washington. Also locally heavy rain and local flooding occurred with some storms.
- Damaging Wind in Oregon, June 26, 2017Moisture ahead of an upper trough situated of the coast of Oregon combined with hot temperatures inland initiating strong to severe thunderstorms across parts of the Treasure Valley of Oregon.
- Hail in Kansas, June 26, 2017A jet streak within the northwest flow aloft extended from South Dakota into northern Missouri, and this perturbation was pushing southeast. A weak frontal push at the surface aided in convective initiation and severe storms. Longer lived storms had hail up to 3 inches.
- Damaging Winds in Montana, June 26 to 27, 2017A few severe thunderstorms affected north-central and southwest Montana on June 26th and 27th. These storms developed ahead of an eastward-advancing cold front and within an environment characterized by appreciable instability and weak to moderate vertical wind shear.
- Damaging Wind in Oklahoma, June 26, 2017Diurnally driven convection from the high terrain off of New Mexico and Colorado worked their way southeastward during the afternoon hours. Across the far western combined Panhandles, storms reached the area with weak shear.
- Damaging Winds in Idaho, June 26, 2017Severe thunderstorm winds downed power lines in Pocatello on Jefferson Avenue around 745. Idaho Power reported 2,000 customers in the Pocatello area. The Pocatello Regional Airport reported a wind gust of 61 mph.
- Damaging Winds in Nevada, June 26, 2017Thunderstorm wind gusts caused tree damage on the south side of Elko and a gust to 59 mph at Deeth.
- Damaging Winds in Washington, June 26 to 27, 2017During the early evening of June 26th a line of thunderstorms tracked west to east through the Spokane area. Several reports of trees down were received with some damage to homes and cars.
- Hail and Damaging Wind in Oklahoma, June 26 to 27, 2017Scattered storms formed in the vicinity of a stalled front in northern Oklahoma overnight between the 26th and the 27th.
- Damaging Wind in Idaho, June 26, 2017A strong shortwave in westerly flow enhanced thunderstorms over the Northern Rockies. Intense heating lead to near-record surface temperatures, which provided modest instability and a dry near-surface layer for downdrafts to accelerate within.
- Damaging Wind in Montana, June 26, 2017Scattered rain showers and a few thunderstorms moved across the area ahead of an approaching cold front, bringing strong and gusty winds to a few locations.
- Hail and Damaging Winds in Nebraska, June 26 to 27, 2017A warm front situated along the high plains combined with a shortwave aloft to bring numerous thunderstorms, many of which were severe, to a large part of western and north central Nebraska.
- Flash Flooding in Texas, June 27, 2017Thunderstorms produced heavy rainfall over the northern Coastal Bend from Port Aransas to Rockport to Seadrift. Rainfall amounts were between 3 to 4 inches. Rainfall produced flooding in Rockport and Port Aransas.
- Flash Flooding and Damaging Winds in Mississippi, June 27 to 29, 2017A stalled frontal boundary combined with an extremely moist airmass aided in the development of thunderstorms across southern Mississippi. Several reports of flash flooding were received as well as one report of wind damage.
- Hail in New York, June 27, 2017The combination of an unseasonably cold air mass and moderately unstable atmosphere accounted for the development of showers and thunderstorms during the afternoon of June 27th.
- Lightning Strike in Florida, June 27, 2017Afternoon thunderstorms produced a lightning strike that struck two men at a construction site in Broward County.
- Hail and Damaging Winds in Kansas, June 27 to 29, 2017Isolated thunderstorms produced a few severe thunderstorms during the days of June 27th, 29th and 30th of 2017.
- Hail and Damaging Winds in New York, June 27, 2017An upper level low and cold front brought strong to severe thunderstorms to the region during the afternoon hours of Tuesday, June 27th, 2017. These storms knocked down numerous trees and power lines, primarily in the Adirondacks and Mohawk Valley regions.
- Damaging Winds and Lightning Strike in Wyoming, June 27, 2017A shortwave moved across western and central Wyoming on the afternoon of June 27th. There were very large dew point depressions that led to the formation of high based thunderstorms. These thunderstorms led to many severe wind gusts, some of which produced damage.
- Hail in Pennsylvania, June 27, 2017A weak surface front moved across the region Tuesday afternoon in a very unstable environment. The front resulted in scattered showers and thunderstorms developing across the states of New York and Pennsylvania.An isolated storm became severe and produced large hail.
- Hail in Connecticut, June 27, 2017A disturbance at mid-levels in the atmosphere moved from the Great Lakes across New England during the afternoon and evening. This along with daytime heating through partly sunny skies allowed afternoon and evening thunderstorms to develop, producing hail over Hartford County.
- Hail in Vermont, June 27, 2017The combination of an unseasonably cold air mass and moderately unstable atmosphere accounted for the development of showers and thunderstorms during the afternoon of June 27th across eastern NY into VT.
- Damaging Winds in New Hampshire, June 27, 2017An approaching cold front was the focus for convection on the afternoon of the 27th. A few reports of wind damage were received as scattered thunderstorms rolled through southern New Hampshire.
- Hail in Maine, June 27, 2017Showers and thunderstorms developed during the afternoon of the 27th in the vicinity of a warm front and in advance of an approaching upper level disturbance. An isolated severe storm produced large hail in Presque Isle.
- Hail in Texas, June 27, 2017Good low level moisture remained over the region with morning dew points over 60F and a boundary continued to remain near the Rio Grande Valley.
- Hail in Connecticut, June 27, 2017An upper level low and cold front brought strong thunderstorms to the region during the afternoon hours of Tuesday, June 27th, 2017. One of the thunderstorms produced quarter size hail in Falls Village.
- Hail in New York, June 27, 2017Thunderstorms in Orchard Park and West Seneca produced three-quarter inch hail.
- Damaging Winds in South Dakota, June 27, 2017A line of severe thunderstorms developed over far southwestern South Dakota and tracked northeastward across much of southwestern into central South Dakota. The storms produced wind gusts of 60 to 80 mph and small hail.
- Damaging Wind in New Mexico, June 27, 2017A thunderstorm that developed over the high terrain west of Bosque del Apache moved east through the wildlife preserve and strengthened over the White Sands Missile Range. A wind gust to 68 mph was reported at the Mine mesonet station.
- Damaging Winds in Wyoming, June 27, 2017A severe thunderstorm produced strong wind gusts across parts of central Campbell County.
- Damaging Winds in Wyoming, June 27, 2017A collapsing line of showers and thunderstorms over the Snowy mountain range generated a long-lived gust front. This front produced very strong winds as it raced east across southern Albany, Platte and Laramie counties.
- Damaging Wind in Maine, June 27, 2017An approaching cold front was the focus for convection on the afternoon of the 27th. An isolated cell in Waldo County produced a report of wind damage.
- Hail and Damaging Wind in South Dakota, June 27, 2017A severe thunderstorm developed over eastern Oglala Lakota County, producing quarter sized hail and strong wind gusts.
- Damaging Winds in Kansas, June 27, 2017During the evening an eastward moving thunderstorm produced wind gusts up to 72 MPH. The highest wind gust was measured west of Mingo.
- Damaging Winds in South Dakota, June 27, 2017A couple storms in central South Dakota brought severe winds from 60 to 70 mph.
- Damaging Winds in Nebraska, June 27, 2017Thunderstorms produced damaging winds in Scott Bluff and Box Butte counties. A peak gust of 79 mph was recorded at the Scottsbluff Airport.
- Hail and Damaging Winds in North Dakota, June 27, 2017A short wave trough moved from northwest South Dakota into south central North Dakota where elevated instability and shear were noted, producing isolated severe thunderstorms. Golf ball sized hail was the largest reported, and occurred just south of Mandan in Morton County.
- Damaging Winds in Nebraska, June 27 to 28, 2017Between 9 p.m. and 1 a.m. CDT on this Tuesday evening into early Wednesday morning, a strong-to-severe, linear mesoscale convective system (MCS) tracked west-to-east through most of South Central Nebraska, but with its most intense elements primarily impacting areas near and…
- Damaging Wind in Colorado, June 27, 2017A thunderstorm produced wind gusts up to 59 MPH at the Burlington airport.
- Hail and Damaging Wind in South Dakota, June 27 to 28, 2017Scattered thunderstorms developed and became severe during the late evening hours. Storms quickly produced severe weather in the form of hail and strong winds before dissipating just as quick.
- Hail in Minnesota, June 27, 2017Scattered thunderstorms developed and became severe during the late evening hours. Storms quickly produced severe weather in the form of hail and strong winds before dissipating just as quick.
- Hail and Damaging Wind in Kansas, June 28 to 29, 2017During a roughly 30-hour period between the early morning hours of Wednesday the 28th and Thursday the 29th, essentially three separate rounds of thunderstorms affected this six-county North Central Kansas area.
- Damaging Wind in Iowa, June 28, 2017A thunderstorm moved across portions of northwest Iowa and produced a rogue wind gust. No other reports were received from this storm other than the one recorded.
- Tornadoes and Hail in Iowa, June 28, 2017After a complex of storms moved through the state in the early morning hours of the 28th, producing a smattering of sub-severe to severe hail, the area found itself entrenched firmly within the warm sector of a low pressure system passing to the northwest.
- Flash Flood and Flooding in Iowa, June 28 to 30, 2017A line of thunderstorms moved across northeast Iowa during the afternoon of June 28th. Some of these storms produced damaging winds and hail. Trees were snapped off or blown down in Calmar (Winneshiek County), near Farmersburg, and southwest of McGregor (Clayton County).
- Hail in Montana, June 28, 2017Scattered showers and thunderstorms developed via daytime heating over the higher terrain of southwest Montana. Modest instability and vertical wind shear limited the risk of severe thunderstorms.
- Hail in South Dakota, June 28, 2017A thunderstorm briefly became severe over eastern Custer County, producing quarter sized north of Fairburn.
- Hail in Idaho, June 28, 2017Large hail occurred in southeast Idaho.
- Tornadoes and Hail in Iowa, June 28, 2017During the afternoon hours of the 28th supercell thunderstorms developed over southwest Iowa causing two confirmed tornadoes and reports of large hail.
- Damaging Winds in Wyoming, June 28, 2017A combination of a weak shortwave moving across Wyoming and very large dew point depressions brought very strong wind gusts to some areas as showers and thunderstorms collapsed. Wind gusts of 64 and 58 mph were reported at the Riverton and Big Piney ASOS stations, respectively.
- Damaging Winds in Wyoming, June 28, 2017A severe thunderstorm produced strong wind gusts around 60 mph as it tracked from northern Campbell County into Crook County.
- Tornado in Wisconsin, June 28, 2017On the morning of June 28, a low pressure system was located over the North Dakota/South Dakota border. As the day progressed, this low moved over central Minnesota.
- Tornado in Wisconsin, June 28, 2017A tornadic thunderstorm moved into Burnett County where it produced a low-end EF-1 tornado that originated southwest of Siren, Wisconsin.
- Hail in Nebraska, June 28, 2017During the afternoon hours of the 28th, an isolated supercell thunderstorm developed over southeast Nebraska and dropped large hail over Johnson County, NE.|These storms formed in response to a slow-moving cold front that passed through the region during the afternoon and early…
- Damaging Winds in Wisconsin, June 28, 2017A line of thunderstorms moved across southwest Wisconsin during the afternoon of June 28th. Some of these storms produced damaging winds that impacted farm buildings and blew down numerous power poles near Livingston (Grant County).
- Tornadoes and Flash Flooding in Missouri, June 28 to 29, 2017On the evening of June 28 a complex of supercell thunderstorms moved into northern Missouri, producing widespread large hail and damaging winds, mainly north of Interstate 70. These storms also produced at least 3 tornadoes, all north of Highway 36.
- Tornadoes and Flash Flood in Wisconsin, June 28 to 29, 2017A powerful line of thunderstorms moved across southern Wisconsin during the evening of June 28, 2017. These storms brought damaging winds and 3 tornadoes to the area.
- Hail in South Dakota, June 28, 2017A thunderstorm became severe across the central Black Hills and tracked east onto the adjacent plains before weakening. The storm produced hail to golf ball size from Sheridan Lake to east of Hermosa.
- Tornadoes and Flash Flooding in Minnesota, June 28 to 29, 2017A line of thunderstorms moved across southeast Minnesota during the late afternoon and evening of June 28th. These storms produced three brief EF-0 tornadoes across Olmsted County.
- Tornadoes and Hail in Iowa, June 28 to 29, 2017Low pressure moving along a cold front helped produce supercell thunderstorms with large hail, damaging winds, and tornadoes over much of Iowa the afternoon and evening of June 28th, 2017.
- Hail and Damaging Wind in Nebraska, June 28 to 29, 2017Although not as widespread in coverage as the night before, a smattering of strong to severe thunderstorms again paid a visit to portions of South Central Nebraska from late Wednesday evening the 28th into early Thursday morning the 29th.
- Flash Flooding and Hail in Illinois, June 28, 2017Low pressure moving along a cold front helped produce supercell thunderstorms with large hail, damaging winds, and tornadoes over much of Iowa the afternoon and evening of June 29th, 2017.
- Tornadoes and Flash Flooding in Illinois, June 28 to 29, 2017Severe thunderstorms produced heavy rain, flash flooding, wind damage and a few tornadoes during the evening hours of June 28th. A wake low after earlier thunderstorms caused high winds across part of central Illinois including a measured gust to 61 mph at Pontiac Airport (KPNT).
- Hail in Wyoming, June 28, 2017A thunderstorm briefly became severe over Newcastle, producing hail to the size of quarters.
- Lightning Strike in Idaho, June 28, 2017A thunderstorm near Coeur D'Alene during the evening of June 28th produced a lightning bolt that struck a house and set it on fire. Quick response by the fire department saved most of the house, but damage to the home was estimated at 50 thousand dollars.
- Hail and Damaging Winds in Kansas, June 29, 2017After midnight a large thunderstorm complex moving east produced severe wind gusts and large hail. The strongest wind gust of 76 MPH was reported near Weskan.
- Hail in North Dakota, June 29, 2017Thunderstorms developed along and near a cold front as it moved through western North Dakota in the afternoon. One thunderstorm produced one inch diameter hail in Mountrail County, while another produced a funnel cloud.
- Hail in Colorado, June 29, 2017A few severe storms produced hail up to the size of baseballs. The baseball size hail occurred in portions of Prowers and Baca Counties.
- Hail in Wyoming, June 29, 2017A thunderstorm developed east of the Absarokas and became severe as it moved into the Wind River Basin. The storm dropped up to quarter size hail in and around Ethete.
- Hail in Colorado, June 29, 2017Severe thunderstorms produced large hail, up to golfball size, across portions Douglas and Elbert Counties.
- Hail in Nebraska, June 29, 2017Isolated severe storms develop across eastern portions of north central Nebraska near a stationary front.
- Damaging Wind in Mississippi, June 29, 2017An upper level low pressure system moving north from the Gulf of Mexico combined with a warm and unstable airmass over the region.
- Damaging Winds in Missouri, June 29, 2017Isolated severe storms developed across east central Missouri.
- Lightning Strike in Florida, June 29, 2017Afternoon sea breeze thunderstorms developing across southwest Florida produced numerous lightning strikes throughout the area - one of which hit a woman who was 9 months pregnant.
- Hail and Damaging Wind in Nebraska, June 29, 2017Widespread thunderstorms developed in south central South Dakota late in the afternoon and continued across portion of northeast Nebraska during the evening hours.
- Hail and Damaging Winds in South Dakota, June 29, 2017Widespread thunderstorms developed in south central South Dakota late in the afternoon and continued into the early evening. The storms produced quite a swath of hail as they progressed across the area.
- Hail and Damaging Wind in Iowa, June 29, 2017Widespread thunderstorms developed in south central South Dakota late in the afternoon and continued across northwest Iowa during the evening hours. The storms produced quite a swath of hail as they progressed across the area.
- Tornado and Hail in Nebraska, June 29, 2017During the afternoon and evening hours of June 29th, scattered severe thunderstorms formed over the mid Missouri Valley, along and ahead of a cold front moving into the region.
- Flash Flooding and Damaging Winds in Iowa, June 29 to 30, 2017A weak, relatively stationary boundary found itself draped across northern Iowa throughout the day.
- Hail and Damaging Wind in Iowa, June 29, 2017During the afternoon and evening hours of June 29th, scattered severe thunderstorms formed over the mid Missouri Valley, along and ahead of a cold front moving into the region.
- Damaging Winds in Ohio, June 29, 2017A warm front moved over northern Ohio causing a line of showers and thunderstorms to develop. Portions of the line became severe and a downburst caused a lot of damage in Stark County.
- Hail and Damaging Winds in Kansas, June 29 to 30, 2017Several severe thunderstorms struck the region on the 29th and 30th. First to be hit was Southeast Kansas, where parts of Woodson County were hit by a thunderstorm that just barely achieved severity with winds around 60 mph and 1 inch hail in the evening on the 29th, but it was…
- Hail and Damaging Winds in Kansas, June 29, 2017A couple strong to severe thunderstorms moved east across Northwest Kansas. The highest wind speed reported was 63 MPH near Menlow, and the largest hail reported was penny size north of Norcatur.
- Damaging Wind in Illinois, June 29, 2017Isolated thunderstorms developed within a very warm and humid airmass across central Illinois during the afternoon and early evening of June 29th. One cell produced gusty winds that knocked a large tree branch onto a vehicle on the southwest side of Champaign.
- Flash Flooding and Hail in Missouri, June 29 to 30, 2017On the evenings of June 29 and 30 a couple rounds of severe thunderstorms moved through western and central Missouri, producing some marginally severe hail and wind damage. Heavy rain associated with these storms also contributed to flooding along area roadways.
- Hail and Damaging Winds in Kansas, June 29 to 30, 2017An upper level shortwave trough dipped southeast into the Central Rockies, in turn ejecting a series of H5 vort maxima out across the Western High Plains, downstream of the trough axis.
- Hail in Nebraska, June 29, 2017For the fourth consecutive day, at least a small portion of South Central was affected by severe storm activity.
- Flash Flooding and Flooding in New York, June 29 to 30, 2017A band of showers and thunderstorms developed in an east-west oriented line in the late afternoon and overnight hours across northern New York. Rainfall amounts of two to three inches in just a few hours on saturated soils from previous June rainfall caused flash flooding.
- Damaging Winds in Ohio, June 29, 2017Passing shortwave supported isolated strong/severe storms on the 29th.
- Hail and Damaging Wind in Pennsylvania, June 29, 2017Passing shortwave supported isolated strong/severe storms on the 29th.
- Damaging Wind in Iowa, June 29, 2017A complex of thunderstorms moved across northeast Iowa during the evening of June 29th. These storms briefly produced some damaging winds that blew down trees in Stacyville (Mitchell County).
- Flash Flooding and Flooding in Vermont, June 29 to 30, 2017A band of showers and thunderstorms developed in an east-west oriented line in the late afternoon and overnight hours across northern Vermont from Chittenden County into Lamoille and Washington Counties.
- Damaging Winds in Oklahoma, June 29 to 30, 2017A line of storms formed ahead of a front just after midnight on the 30th and marched southeastward through the overnight hours.
- Damaging Wind in Kansas, June 30, 2017An isolated severe thunderstorm produced a report of wind damage in southeast Kansas.
- Flash Flood in Florida, June 30, 2017Slow moving thunderstorm dropped copious amounts of rain over portions of northwest Florida, particularly the Pace and Milton areas of Santa Rosa County where 9 to 12 inches of rain was observed.
- Damaging Winds in Missouri, June 30, 2017A few severe thunderstorms produced wind damage across the Missouri Ozarks.
- Hail and Damaging Wind in Arkansas, June 30, 2017There was one more front to contend with on the 30th. Early in the day, the front sparked storms across the northern counties that produced penny to nickel size hail not far from Norfork (Baxter County).
- Damaging Winds in Puerto Rico, June 30, 2017A tropical wave, combined with an upper level trough to our west brought scattered to numerous showers with strong thunderstorms across the western interior and northwest sections of Puerto Rico.
- Tornado and Damaging Winds in New York, June 30, 2017Showers and thunderstorms developed along a surface trough Friday afternoon across central New York and northeast Pennsylvania in an unstable atmosphere. These storms quickly moved eastward and developed into line of thunderstorms.
- Damaging Wind in Alabama, June 30, 2017An isolated, brief severe storm developed in Geneva county with damage to power lines in the western portion of the county.
- Hail and Damaging Winds in Ohio, June 30, 2017A frontal system moved across northern Ohio causing showers and thunderstorms to develop. A couple of thunderstorms became severe.
- Lightning Strike in Tennessee, June 30, 2017A thunderstorm over portions of southwest Tennessee generated an indirect lightning death during the afternoon hours of June 30th.
- Tornadoes and Hail in New York, June 30, 2017A fast moving upper level shortwave passed through the area during the afternoon hours on Friday, June 30th, 2017.
- Hail and Damaging Winds in Maine, June 30, 2017A warm front was stalled over northern Maine on the afternoon of the 30th. A shortwave approaching from the west was the catalyst for afternoon showers and thunderstorms in the warm sector south of the front. Many locations reported wind damage in southern Maine.
- Damaging Wind in Indiana, June 30, 2017After nearly 6 days of generally dry weather, rainfall of one-half to over 4 inches fell mainly near and north of Interstate 70 in central and northern Indiana on the last day of June.
- Hail and Damaging Wind in Pennsylvania, June 30, 2017Showers and thunderstorms developed along a surface trough Friday afternoon across central New York and northeast Pennsylvania in a very unstable atmosphere. These storms quickly moved eastward formed into a line of thunderstorms.
- Damaging Winds in New York, June 30, 2017A passing upper level disturbance triggered isolated severe thunderstorms in Orange County.
- Damaging Winds in Massachusetts, June 30, 2017A fast moving upper level shortwave passed through the area during the afternoon hours on Friday, June 30th, 2017.
- Damaging Winds in Mississippi, June 30, 2017A moist and unstable airmass was in place over the region. This helped fuel some showers and thunderstorms during the afternoon that brought strong winds.
- Damaging Wind in Vermont, June 30, 2017A weak mid atmospheric disturbance moved across a warm, humid air mass during the afternoon of June 30th. This caused some scattered thunderstorms across eastern NY that moved into VT.
- Damaging Winds in Virginia, June 30, 2017A southerly flow around high pressure over the Atlantic produced a warm and humid airmass. Showers and thunderstorms developed around a pressure trough and some thunderstorms became severe due to the unstable atmosphere.
- Damaging Wind in Michigan, June 30, 2017An isolated thunderstorm produced tree damage in Redford.
- Flash Flooding and Hail in Oklahoma, June 30, 2017Another line of storms formed along a cold front as it pushed into southern Oklahoma and western north Texas late on the 30th.
- Damaging Winds in Connecticut, June 30, 2017A fast moving upper level shortwave passed through the area during the afternoon hours on Friday, June 30th, 2017. With a warm and muggy air mass in place, this shortwave sparked off numerous strong to severe thunderstorms, which caused damage to trees and power lines.
- Damaging Wind in South Carolina, June 30, 2017A band of showers and thunderstorms developed. One of the storms became severe and produced wind damage.
- Lightning Strike in Florida, June 30, 2017Scattered thunderstorms developed along the Gulf Coast sea breeze during the afternoon and early evening hours.
- Flash Flooding in Ohio, June 30, 2017Vigorous shortwave within generally weak to moderate low level flow and a very moist column helped to create a hazardous heavy rain event.
- Hail and Damaging Winds in New Mexico, June 30, 2017Northwest steering flow aloft over New Mexico combined with deep moisture and strong instability resulted in a significant severe weather event over the eastern plains.
- Flash Flood in Ohio, June 30, 2017A cold front advanced eastward from the Midwest by the evening of the 30th. A seasonably warm and moist airmass over Northern Ohio generated enough instability for the development of thunderstorms.
- Damaging Winds in Connecticut, June 30, 2017A passing upper level disturbance triggered isolated severe thunderstorms in Fairfield and New Haven Counties.
- Damaging Wind in Florida, June 30, 2017Sea breeze storms produced some minor wind damage in Flagler county.
- Hail and Damaging Winds in Oklahoma, June 30, 2017Strong to severe thunderstorms developed during the evening hours of the 30th, along a cold front that stretched from southwestern Oklahoma into east-central Oklahoma. The strongest storms produced hail up to quarter size and damaging wind gusts.
- Damaging Winds in Pennsylvania, June 30, 2017A severe thunderstorm moves through Berks county PA.
More
Every billion-dollar disasterEvery storm of 2017Tornadoes in 2017
Sources
NOAA NCEI, U.S. Billion-Dollar Weather and Climate Disasters (2025), https://doi.org/10.25921/stkw-7w73, and the Storm Events Database for the episodes.