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Hi folks! Stay ahead of the storm with a 48-hour severe weather outlook, precise hail alerts, and live hail tracking. Access hail insights, historical hail maps, and detailed reports across 300+ regions for better planning and fewer "uh-oh" moments. Stay informed, stay safe, and stay protected - all completely free. Hi folks! Stay ahead of the storm with a 48-hour severe weather outlook, precise hail alerts, and live hail tracking. Access hail insights, historical hail maps, and detailed reports across 300+ regions for better planning and fewer "uh-oh" moments. Stay informed, stay safe, and stay protected - all completely free.
Public hail, wind, and tornado reports across the United States on August 31, 2015 from August 31, 2015 through August 31, 2015, sourced from NOAA/NWS Local Storm Reports and SPC storm report data.
Pick any date to see hail, wind and tornado public reports for that day — e.g. September 18, 2026.
Hail Reports
1
Wind Reports
19
Tornado Reports
0
Max Hail Size
0.75″
Source NOAA SPC · NWS Local Storm ReportsCoverage United States · August 31, 2015 · 2015–presentUpdated Daily · last Aug 31, 2015
Hail Report Description: Strong thunderstorms moved across the central portion of the greater Phoenix metropolitan area during the evening hours on August 31st, and in addition to gusty damaging winds, some of the stronger storms produced large hail. According to a trained spotter, penny sized hail was observed about 2 miles north of Papago Park in far southern Scottsdale. The hail fell near the intersection of 60th Street and Thomas Road.
NWS Hail Report Location: N Papago Aaf Arpt, AZ
Showing 1 of 1
Hail Damage Risk for Your Home+
Hail reports describe hail by diameter, often comparing stone size to familiar objects like peas, quarters, golf balls, and softballs. Use this guide as a starting point for possible hail damage to your roof, siding, gutters, vents, windows, and exterior. Actual hail damage depends on hail hardness, density, wind speed, impact angle, roof age, shingle condition, roof pitch, roofing material, installation quality, and prior storm damage.
Pea
0.25″
Low
Usually too small to cause hail damage to most sound asphalt roofs, siding, or gutters.
Mothball
0.50″
Sub-Severe Watch
Below the NWS severe-hail threshold, but not always harmless. Repeated small hail can scuff surfaces, wear aging shingles, and loosen protective granules over time.
Penny
0.75″
Minor / Watch
Below the NWS severe-hail threshold, but roof hail damage is still possible on older, brittle, poorly installed, or previously damaged shingles. May also mark screens, vents, gutters, and soft metal.
Nickel
0.88″
Minor / Watch
Still below the severe-hail threshold, but large enough to leave visible marks on soft metal and add wear to older or hail-weakened roof shingles.
Quarter
1.00″
Watch
The NWS severe-hail threshold. Quarter-size hail can bruise shingles, dent soft metal, and create roof hail damage worth checking.
Half Dollar
1.25″
Watch
More likely to dent gutters, vents, flashing, and siding. Hail damage risk rises quickly on older roofs or hail-weakened shingles.
Ping Pong / Walnut
1.50″
Likely
Hail damage becomes more likely, including bruised shingles, granule loss, dented siding, and damaged roof vents.
Golf Ball
1.75″
Likely
Often causes roof hail damage, cracked shingles, dented gutters, damaged flashing, and siding impacts. A roof inspection is recommended.
Hen Egg
2.00″
Serious
Can crack or puncture shingles, expose mat, dent siding, and cause widespread hail damage across the roof and exterior.
Tennis Ball
2.50″
Serious
Can cause heavy roof hail damage, punctured siding, broken skylights, damaged vents, and widespread exterior damage.
Baseball
2.75″
Major
Major hail damage is likely, including severe roof impacts, damaged siding, broken windows, and possible major roof repairs.
Tea Cup / Large Apple
3.00″
Major
Can cause heavy hail damage across the roof, siding, gutters, windows, and exterior. Significant repairs are often needed.
Softball
4.00″
Extreme
Destructive hail damage. Can severely damage roofing materials, siding, windows, gutters, vents, vehicles, and exterior surfaces.
Grapefruit
4.50″
Extreme
Catastrophic hail damage risk for roofs, windows, vehicles, siding, gutters, and exterior surfaces.
Source: NOAA / National Weather Service hail size references are used for hail-size comparisons and the 1.00″ severe-hail threshold. Damage descriptions are general homeowner guidance, not official NOAA/NWS damage ratings. Sub-severe hail under 1.00″ is below the severe threshold, but that does not mean “no roof damage.” Penny- to nickel-size hail can still contribute to granule loss, cosmetic surface marks, and added wear, especially on older, brittle, poorly installed, or previously damaged roofs.
Wind Report Description: Scattered thunderstorms moved across the central portion of the greater Phoenix metropolitan area during the evening hours on August 31st, and some of the stronger storms generated gusty and damaging outflow winds estimated to be in excess of 60 mph. At 2034MST local broadcast media reported that trees were blown down across 7th Street at East Roosevelt Street in central Phoenix. About 20 minutes later, a public report was received stating that strong winds blew down trees along 40th Street between Indian School Road and Thomas Road.
NWS Wind Report Location: 1.5 SSE Phoenix, AZ
70mph
Aug 31, 2015 8:30 PM MST-7
Wind report for August 31, 2015
Maricopa County · 1,189,056 Homes in County
Wind Report Description: Scattered thunderstorms moved across the southeastern portion of the greater Phoenix metropolitan area during the evening hours on August 31st; some of the stronger storms generated gusty and damaging outflow winds estimated to be as high as 70 mph. According to a trained weather spotter located just south of Dobson Ranch, or 3 miles south of the Fiesta Mall, strong winds uprooted a tree with a diameter of 8 inches. The winds also snapped a tree nearly 1 foot across and as the tree fell it brought down a nearby power pole. Metal siding was damaged on a temporary building in the area. The damage occurred near the intersection of Alma School Road and West Elliot Road.
NWS Wind Report Location: 1.86 WSW Falfa, AZ
60mph
Aug 31, 2015 8:30 PM MST-7
Wind report for August 31, 2015
Maricopa County · 1,189,056 Homes in County
Wind Report Description: Scattered strong thunderstorms affected the southeast portion of the greater Phoenix metropolitan area during the evening hours on August 31st, including the town of Mesa. The stronger storms generated gusty outflow winds as high as 60 mph. According to an amateur radio report, at 2030MST a wind gust to 60 mph was estimated to have occurred in central Mesa, about 2 miles to the northeast of the Fiesta Mall. No damage was reported in the area.
NWS Wind Report Location: .69 N Mc Queen, AZ
64mph
Aug 31, 2015 8:26 PM MST-7
Wind report for August 31, 2015
Maricopa County · 1,189,056 Homes in County
Wind Report Description: Thunderstorms moved across the northeast part of the greater Phoenix metropolitan area during the evening hours on August 31st and they affected the community of Paradise Valley. One of the storms produced gusty and damaging outflow winds. According to a report from the public, gusty winds estimated to be in excess of 60 mph blew down a tree about 3 miles northeast of Paradise Valley. The tree landed on a car at the intersection of Scottsdale Road and Shea Boulevard. The report did not indicate if any injuries occurred to the occupants of the car.
NWS Wind Report Location: 2.82 SSW Scottsdale Muni, AZ
64mph
Aug 31, 2015 8:09 PM MST-7
Wind report for August 31, 2015
Maricopa County · 1,189,056 Homes in County
Wind Report Description: Scattered thunderstorms moved across the central portion of the greater Phoenix metropolitan area during the evening hours on August 31st, and some of the stronger storms produced gusty and damaging outflow winds which produced damage in the vicinity of the Arizona State Fairgrounds. According to a broadcast media report, at 2016MST outflow winds estimated to be at least 65 mph downed a number of power poles near the intersection of 17th Avenue and Thomas Road. As the poles fell, power lines became draped across some of the houses in the area. The downed poles were located about 1 mile north of the fairgrounds. As reported in the Arizona Republic, the resulting power outage caused a significant loss of food at the St. Mary's Food Bank Alliance; between 50,000 and 60,000 pounds of dairy products stored at St. Mary's facility were lost. The facility was located near 31st Avenue and Thomas Road. According to Jerry Brown, director of public relations at St. Mary's, they are seeking donations to replenish the 100 thousand dollars in lost goods due to the soaring temperatures following the loss of power. Additionally, a trained weather spotter reported that strong winds blew down numerous trees at the intersection of 27th Avenue and Van Buren Street, about 2 miles southwest of the fairgrounds.
NWS Wind Report Location: 1.15 W Phoenix, AZ
64mph
Aug 31, 2015 8:05 PM MST-7
Wind report for August 31, 2015
Pima County · 284,034 Homes in County
Wind Report Description: Thunderstorm winds uprooted and knocked over a 40 foot tree that fell onto a home near Oracle Rd and 1st Ave in Oro Valley. Several other trees were blown over in Oro Valley.
NWS Wind Report Location: 1.5 SSE Oro Vly, AZ
64mph
Aug 31, 2015 8:00 PM MST-7
Wind report for August 31, 2015
Maricopa County · 1,189,056 Homes in County
Wind Report Description: Scattered thunderstorms moved across the southeast portion of the greater Phoenix metropolitan area during the evening hours on August 31st, and some of the stronger storms generated gusty and damaging outflow winds. Some of the winds damaged trees in the area around the Arizona State University campus in north Tempe. At 2030MT, a member of the public reported that gusty winds downed trees and blew shingles off of roofs near the intersection of Mill Avenue and Broadway Road in north Tempe. The winds were estimated to be in excess of 60 mph. About 30 minutes earlier, the public reported that gusty winds downed trees along University Avenue between Priest Drive and the Loop 202, about 2 miles west of the college campus.
NWS Wind Report Location: .9 NW Tempe, AZ
64mph
Aug 31, 2015 7:58 PM MST-7
Wind report for August 31, 2015
Maricopa County · 1,189,056 Homes in County
Wind Report Description: Scattered strong thunderstorms developed across the central portion of the greater Phoenix area during the evening hours on August 31st, and some of them affected north Tempe, around Arizona State University. The storms produced gusty outflow winds in excess of 60 mph. A trained weather spotter 1 mile northwest of Arizona State University estimated that sustained winds reached 65 mph at the intersection of Roosevelt and First Street in Tempe. The spotter did not indicate that damage occurred due to the strong winds.
NWS Wind Report Location: 2.21 SE Kendall, AZ
60mph
Aug 31, 2015 7:55 PM MST-7
Wind report for August 31, 2015
Maricopa County · 1,189,056 Homes in County
Wind Report Description: Scattered thunderstorms moved across Scottsdale during the evening hours on August 31st and some of the stronger ones generated gusty and damaging outflow winds. According to a report from local broadcast media, gusty winds estimated be as high as 60 mph downed power lines near the intersection of east Chaparral Road and Highway 101, about 2 miles northeast of downtown Scottsdale. The report did not mention if any power poles were downed as well.
NWS Wind Report Location: 2.15 NNE Scottsdale, AZ
75mph
Aug 31, 2015 7:55 PM MST-7
Wind report for August 31, 2015
Maricopa County · 1,189,056 Homes in County
Wind Report Description: Scattered strong thunderstorms moved across the central portion of the greater Phoenix metropolitan area during the evening hours on August 31st; the stronger storms generated gusty damaging microburst winds estimated to be as high as 75 mph. Some of the most significant damage that occurred was just north of Papago Park. According to a trained weather spotter, strong microburst winds uprooted and blew down several large trees with trunk diameters ranging from one to three feet. Other large trees in the area had large branches snapped off. The damaged trees were located about 2 miles north of Papago Park. In addition, the winds caused damage to both roofs and brick walls of a nearby apartment complex. Penny sized hail was also observed. Fortunately, there were no injuries reported as a result of the strong microburst winds.
NWS Wind Report Location: N Papago Aaf Arpt, AZ
70mph
Aug 31, 2015 7:50 PM MST-7
Wind report for August 31, 2015
Maricopa County · 1,189,056 Homes in County
Wind Report Description: Scattered strong thunderstorms moved across the central portion of the greater Phoenix metropolitan area during the evening hours on August 31st, and they affected the community of Tempe. Some of the stronger storms produced gusty and damaging outflow winds in excess of 60 mph; the winds blew down numerous trees. According to a trained weather spotter 2 miles northwest of the Tempe Marketplace in north Tempe, damaging winds estimated to be as high as 70 mph blew down numerous large trees along Scottsdale Road south of east McKellips Road. At the same time, a report from the public indicated numerous large trees down near 68th Street and McKellips. Additionally, at 1950MST another public report indicated that strong winds downed a streetlight pole on College Avenue just north of Curry Road, near the Arizona State University campus.
NWS Wind Report Location: 2.76 N Tempe, AZ
70mph
Aug 31, 2015 7:50 PM MST-7
Wind report for August 31, 2015
Maricopa County · 1,189,056 Homes in County
Wind Report Description: Scattered thunderstorms moved across the central portion of the greater Phoenix metropolitan area during the evening hours on August 31st and due to a favorable combination of elevated moisture, instability and winds aloft, some of the stronger storms produced gusty and damaging microburst winds. One location that was especially impacted by the damaging winds was the Phoenix zoo in north Tempe. According to a report from local broadcast media, microburst winds estimated to be as high as 70 mph blew down numerous trees at the zoo and as a result, the zoo was closed for three days. Fortunately, there were no injuries reported as a result of the strong winds.
NWS Wind Report Location: 1.73 E Kendall, AZ
75mph
Aug 31, 2015 7:45 PM MST-7
Wind report for August 31, 2015
Maricopa County · 1,189,056 Homes in County
Wind Report Description: Strong thunderstorms developed across portions of the greater Phoenix metropolitan area, including the community of Tempe, during the evening hours on August 31st. Due to a favorable combination of elevated moisture, instability, and wind fields aloft, the stronger storms produced gusty and damaging microburst winds which were estimated to reach as high as 75 mph at times. The microburst winds produced significant damage across the northern portion of Tempe. According to an article in the Arizona Republic, very strong winds ripped off part of the roof at the Integrity Charter School in Tempe. City spokeswoman Melissa Quillard reported that the Tempe Center for the Arts sustained roof damage and about one half of the trees around the center were damaged. Finally, it was reported that the pedestrian and bicycle bridge across Tempe Town Lake was significantly damaged by the microburst winds. Repairs to the bridge were estimated at one quarter of a million dollars; the bridge was closed and will remain closed until futher notice. No injuries were reported as a result of the damaging winds.
NWS Wind Report Location: N Tempe, AZ
64mph
Aug 31, 2015 7:42 PM MST-7
Wind report for August 31, 2015
Maricopa County · 1,189,056 Homes in County
Wind Report Description: Scattered thunderstorms developed across the central portion of the greater Phoenix metropolitan area during the evening hours on August 31st, and the stronger ones generated multiple reports of severe wind gusts, both estimated and measured, in excess of 60 mph. Some of the strongest gusts were reports in the area around Phoenix Sky Harbor Airport and Papago Park. At 1942MST the official ASOS weather sensor at Phoenix Sky Harbor Airport measured a gust to 61 mph. Soon afterwards, at 1955MST, a mesonet weather sensor 1 mile west of Papago Park measured a gust to 63 mph. At 2010MST another mesonet weather station 2 miles north of Papago Park measured a wind gust to 60 mph. Finally, just 5 minutes later local broadcast media reported an estimated wind gust to 65 mph at 74th Street and McDowell Road, about 2 miles northeast of Papago Park.
NWS Wind Report Location: .58 E (Phx)Sky Harbor Arpt, AZ
70mph
Aug 31, 2015 7:30 PM MST-7
Wind report for August 31, 2015
Maricopa County · 1,189,056 Homes in County
Wind Report Description: Scattered strong thunderstorms moved across the central portion of the greater Phoenix metropolitan area during the evening hours on August 31st, affecting downtown Phoenix. The storms generated gusty and damaging outflow winds estimated to be as high as 70 mph. According to a local broadcast media report, gusty winds blew down a billboard at the intersection of Grand Avenue and Encanto Boulevard, near the Arizona State Fairgrounds. At the same time, broadcast media also reported that trees were blown down across 7th Street at Roosevelt in downtown Phoenix.
NWS Wind Report Location: 2.41 WSW Phoenix, AZ
58mph
Aug 31, 2015 6:35 PM MST-7
Wind report for August 31, 2015
Pima County · 284,034 Homes in County
Wind Report Description: Thunderstorm winds downed multiple trees along Sunrise Road between Swan and Via Palomita. Several trees were also blown over at the Quail Ridge Apartment complex, and part of a carport was damaged.
NWS Wind Report Location: 3.87 ESE Casas Adobes, AZ
60mph
Aug 31, 2015 3:40 PM CST-6
Wind report for August 31, 2015
Marion County · 7,446 Homes in County
Wind Report Description: Some docks were damaged near Blue Water Resort on Bull Shoals Lake.
NWS Wind Report Location: .99 SW Bull Shoals Lake Wes, AR
60mph
Aug 31, 2015 2:55 PM CST-6
Wind report for August 31, 2015
Van Buren County · 6,762 Homes in County
Wind Report Description: A flag pole and a tree were blown down by thunderstorm winds. The observer also measured 2.40 inches of rain in less than an hour.
NWS Wind Report Location: N Bee Branch, AR
58mph
Aug 31, 2015 12:15 AM EST-5
Wind report for August 31, 2015
Colleton County · 10,818 Homes in County
Wind Report Description: The South Carolina State Highway Patrol reported a tree down on Jefferies Highway.
Storm reports list thunderstorm wind gusts in mph. The NWS marks storms as severe at 58+ mph, but wind damage to your home depends on roof age, shingle condition, installation, exposure, nearby trees, and prior hail or wind damage.
Below Severe
Under 58 mph
Minor
Usually little damage to a sound roof, but loose shingles, flashing, or debris may shift.
Severe
58–74 mph
Watch
Can loosen shingles, lift flashing, break limbs, and damage gutters, siding, fences, or trim.
Damaging
75–90 mph
Serious
Can peel shingles, damage vents, tear siding, rip gutters, and expose weak roof areas.
Extreme
90+ mph
Major
Can cause major roof covering loss, tree damage, broken windows, and structural damage.
Source: NOAA / National Weather Service storm reports. Gusts may be measured or estimated; actual wind damage varies by roof condition, exposure, and prior hail or wind damage.
NWS Tornado Reports on August 31, 2015
0 reports
No tornado reports were found for this selection.
Showing 0 of 0
Tornado Damage Risk for Your Home+
After a tornado, the National Weather Service assigns an EF rating from EF0 to EF5 based on surveyed damage. The rating estimates wind speed from what the tornado damaged, so actual damage can vary by construction quality, roof age, garage doors, windows, trees, debris, and how close the home was to the tornado path.
EF0
65–85 mph
Light
Can peel shingles, damage gutters or siding, break tree limbs, and toss loose outdoor items.
EF1
86–110 mph
Moderate
Can strip roof covering, damage exterior doors, break windows, snap trees, and cause heavier siding or gutter damage.
EF2
111–135 mph
Serious
Can tear off large sections of roofing, break or uproot trees, destroy weaker structures, and cause major exterior damage.
EF3–EF5
136+ mph
Severe
Can remove roofs and walls, destroy large portions of homes, toss vehicles, and cause severe to total destruction near the path.
Source: NOAA / National Weather Service. EF ratings are assigned after a post-storm damage survey and are based on observed damage, not a direct measurement at every home.
NWS Hail, Wind and Tornado Reports on August 31, 2015 on the Interactive Map
Report type
Hail
Wind
Tornado
Get a Remote Hail Inspection
Not sure if hail may have affected your home on August 31, 2015? Ask a local pro for a Remote Hail Inspection. They can review hail activity for your property and help you decide whether an in-person roof or exterior inspection makes sense.
How many storm reports were recorded on August 31, 2015?
Our records show 1 hail, 19 wind, and 0 tornado reports on August 31, 2015, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on August 31, 2015.
What was the largest hail reported on August 31, 2015?
The largest hail size in these storm-report records on August 31, 2015 is 0.75″, reported near N Papago Aaf Arpt, AZ.
Some reports show UNK instead of a wind speed or tornado rating — what does that mean?
Wind reports come three ways: measured from an instrument, estimated from the damage observed, or UNK when no speed was recorded. Tornadoes show UNK until the National Weather Service finishes a damage survey and assigns an EF rating. UNK simply means that value was not available when the report was filed.
A report appeared near my home on August 31, 2015 — is my roof damaged?
Not necessarily. A storm report shows that hail, wind, or a tornado was observed nearby, not that any specific home was hit. To find out whether your property was affected, check an address-level hail report, and if it looks significant, ask a local pro about a Remote Hail Inspection before scheduling roof work.
I am buying or selling a home — how do these on August 31, 2015 reports help?
If a storm passed through, a roof or exterior may have damage that is hard to see, or a recent repair may trace back to it. Buyers can ask better questions before closing, and sellers can document the home condition up front — both starting from the property address rather than a whole region.
How do I check what happened at a specific address on August 31, 2015?
Use the address search to pull a free address-level hail report for any property — no phone number or email required. It shows recent hail activity for that address so you know whether a closer roof or exterior review makes sense.
Where does this storm report data come from, and what are its limits?
Storm reports on this page are public reports from storm events on August 31, 2015 across the United States, sourced from NOAA SPC and NWS Local Storm Reports. They show where hail, wind, or tornado activity was reported, but they do not confirm damage at any specific property. Report locations, sizes, and times may be approximate and can vary from what an individual home experienced. For property-specific hail history, use an address-level hail report or contact a participating local professional for a remote hail inspection. Pros inclusion is not an endorsement, and contacting a professional does not confirm damage at any property.
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