Heads up! Small hail spotted in these regions: West Palm Beach, FL • Miami, FL ATTENTION! Damaging hail detected. Hail tracking is now active for these regions: Winston, NC • Greensboro, NC • Rock Springs, WY • Provo, UT • Logan, UT • Ogden, UT • Salt Lake City, UT

NOAA/NWS STORM PREDICTION CENTER STORM REPORTS

Hail, Wind & Tornado Reports on May 20, 2004

Public hail, wind, and tornado reports across the United States on May 20, 2004 from May 20, 2004 through May 20, 2004, 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

Wind Reports

Tornado Reports

Max Hail Size

3.00″

Source NOAA SPC · NWS Local Storm Reports Coverage United States · May 20, 2004 · 2004–present Updated Daily · last May 20, 2004

NWS Hail Reports on May 20, 2004

67 reports

Free hail report for your home →

0.75″ hail

May 20, 2004
11:45 PM CST

Hail report for May 20, 2004

Valley County · 1,816 Homes in County

Hail Report Description: No National Weather Service description provided.

NWS Hail Report Location: 6 SW Ord, NE

0.88″ hail

May 20, 2004
11:00 PM CST

Hail report for May 20, 2004

Porter County · 53,961 Homes in County

Hail Report Description: No National Weather Service description provided.

NWS Hail Report Location: 3 S Hebron, IN

0.75″ hail

May 20, 2004
11:49 PM EST

Hail report for May 20, 2004

Washtenaw County · 90,116 Homes in County

Hail Report Description: No National Weather Service description provided.

NWS Hail Report Location: 2 NE Ypsilanti, MI

0.75″ hail

May 20, 2004
11:44 PM EST

Hail report for May 20, 2004

Washtenaw County · 90,116 Homes in County

Hail Report Description: No National Weather Service description provided.

NWS Hail Report Location: Ann Arbor, MI

1.75″ hail

May 20, 2004
11:40 PM EST

Hail report for May 20, 2004

Washtenaw County · 90,116 Homes in County

Hail Report Description: No National Weather Service description provided.

NWS Hail Report Location: 3 S Ypsilanti, MI

0.75″ hail

May 20, 2004
11:30 PM EST

Hail report for May 20, 2004

Wayne County · 555,005 Homes in County

Hail Report Description: No National Weather Service description provided.

NWS Hail Report Location: Romulus, MI

1.00″ hail

May 20, 2004
11:29 PM EST

Hail report for May 20, 2004

Washtenaw County · 90,116 Homes in County

Hail Report Description: No National Weather Service description provided.

NWS Hail Report Location: 5 E Ann Arbor, MI

0.75″ hail

May 20, 2004
9:15 PM MST

Hail report for May 20, 2004

Norton County · 2,213 Homes in County

Hail Report Description: No National Weather Service description provided.

NWS Hail Report Location: Norton, KS

1.75″ hail

May 20, 2004
10:05 PM CST

Hail report for May 20, 2004

Livingston County · 12,465 Homes in County

Hail Report Description: Nickel to golf ball size hail was reported.

NWS Hail Report Location: Dwight, IL

0.88″ hail

May 20, 2004
8:50 PM MST

Hail report for May 20, 2004

Sheridan County · 1,053 Homes in County

Hail Report Description: No National Weather Service description provided.

NWS Hail Report Location: 2 E Hoxie, KS

2.00″ hail

May 20, 2004
8:30 PM MST

Hail report for May 20, 2004

Washington County · 1,871 Homes in County

Hail Report Description: No National Weather Service description provided.

NWS Hail Report Location: 4 NE Messex, CO

1.00″ hail

May 20, 2004
10:25 PM EST

Hail report for May 20, 2004

Ingham County · 76,364 Homes in County

Hail Report Description: Three quarters to one inch diameter hail was reported near Mason.

NWS Hail Report Location: Mason, MI

0.75″ hail

May 20, 2004
9:22 PM CST

Hail report for May 20, 2004

Hall County · 16,946 Homes in County

Hail Report Description: No National Weather Service description provided.

NWS Hail Report Location: 3 W Grand Is, NE

1.75″ hail

May 20, 2004
8:16 PM MST

Hail report for May 20, 2004

Washington County · 1,871 Homes in County

Hail Report Description: No National Weather Service description provided.

NWS Hail Report Location: 3 NE Messex, CO

1.75″ hail

May 20, 2004
8:10 PM MST

Hail report for May 20, 2004

Morgan County · 8,208 Homes in County

Hail Report Description: No National Weather Service description provided.

NWS Hail Report Location: Hillrose, CO

Showing 15 of 67

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.

NWS Wind Reports on May 20, 2004

34 reports

Free hail report + wind check →

67 mph

May 20, 2004
10:02 PM MST

Wind report for May 20, 2004

Norton County · 2,213 Homes in County

Wind Report Description: Decaying thunderstorms east of Lenora produced a minor heat burst event. Temperatures rose from 64 to 73 degrees F between 10:50 pm CDT and 12:30 am CDT accompanied by winds of 67 mph. No known damage. Gusty winds persisted over 2 hours.

NWS Wind Report Location: Lenora, KS

58 mph

May 20, 2004
11:00 PM CST

Wind report for May 20, 2004

Porter County · 53,961 Homes in County

Wind Report Description: Large tree limbs were blown down.

NWS Wind Report Location: 3 S Hebron, IN

60 mph

May 20, 2004
11:53 PM EST

Wind report for May 20, 2004

Washtenaw County · 90,116 Homes in County

Wind Report Description: A trained spotter estimated a 60 mph thunderstorm wind gust.

NWS Wind Report Location: 2 E Saline, MI

71 mph

May 20, 2004
11:53 PM EST

Wind report for May 20, 2004

Washtenaw County · 90,116 Homes in County

Wind Report Description: A trained spotter measured a 75 mph thunderstorm wind gust. The spotter also reported branches down.

NWS Wind Report Location: 2 N Saline, MI

60 mph

May 20, 2004
11:40 PM EST

Wind report for May 20, 2004

Washtenaw County · 90,116 Homes in County

Wind Report Description: Law enforcement reported trees blown down.

NWS Wind Report Location: 3 S Ypsilanti, MI

58 mph

May 20, 2004
11:15 PM EST

Wind report for May 20, 2004

St. Joseph County · 21,297 Homes in County

Wind Report Description: Trained spotter reported numerous trees down southwest of White Pigeon.

NWS Wind Report Location: 4 SW White Pigeon, MI

60 mph

May 20, 2004
11:10 PM EST

Wind report for May 20, 2004

Wayne County · 555,005 Homes in County

Wind Report Description: A trained spotter estimated a 60 mph thunderstorm wind gust.

NWS Wind Report Location: Dearborn, MI

58 mph

May 20, 2004
10:45 PM EST

Wind report for May 20, 2004

Cass County · 21,418 Homes in County

Wind Report Description: Emergency reported trees down in Edwardsburg.

NWS Wind Report Location: Edwardsburg, MI

81 mph

May 20, 2004
10:40 PM EST

Wind report for May 20, 2004

Clearfield County · 29,021 Homes in County

Wind Report Description: Downburst winds from a thunderstorm moved through the Luthersburg area of Clearfield county. Based on damage surveyed by the National Weather Service, top wind speeds were estimated around 70 mph. Five mobile homes lost their roofs, along with 1 framed home. Also, about 50 trees were knocked down by the wind. Two vehicles were damaged by falling trees.

NWS Wind Report Location: Luthersburg, PA

63 mph

May 20, 2004
10:30 PM EST

Wind report for May 20, 2004

St. Joseph County · 87,915 Homes in County

Wind Report Description: Law enforcement reported widespread trees and power lines down in South Bend.

NWS Wind Report Location: South Bend, IN

64 mph

May 20, 2004
10:30 PM EST

Wind report for May 20, 2004

St. Joseph County · 87,915 Homes in County

Wind Report Description: Trained spotter estimated wind gusts to 65 mph south of South Bend.

NWS Wind Report Location: 4 S South Bend, IN

63 mph

May 20, 2004
9:30 PM CST

Wind report for May 20, 2004

Livingston County · 12,465 Homes in County

Wind Report Description: Trees were blown down in the road causing traffic problems.

NWS Wind Report Location: Dwight, IL

58 mph

May 20, 2004
10:25 PM EST

Wind report for May 20, 2004

Berrien County · 59,555 Homes in County

Wind Report Description: Emergency management reported trees down in Bertrand.

NWS Wind Report Location: 4 S Niles, MI

75 mph

May 20, 2004
8:10 PM MST

Wind report for May 20, 2004

Morgan County · 8,208 Homes in County

Wind Report Description: No National Weather Service description provided.

NWS Wind Report Location: Hillrose, CO

58 mph

May 20, 2004
7:54 PM MST

Wind report for May 20, 2004

Morgan County · 8,208 Homes in County

Wind Report Description: No National Weather Service description provided.

NWS Wind Report Location: 3 SE Hillrose, CO

Showing 15 of 34

Wind Damage Risk for Your Home +

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 May 20, 2004

1 reports

F0 category

May 20, 2004
6:30 PM EST

Tornado report for May 20, 2004

Crawford County · 30,860 Homes in County

Tornado Report Description: An F0 tornado touched down along Plank Road west of Guys Mills at 7:30 p.m. The tornado damage path was approximately a mile long and 20 to 40 yards wide. Only one house was damaged along the path (by a fallen tree) but dozens of trees were downed.

NWS Tornado Report Location: Guys Mills, PA

Showing 1 of 1

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 May 20, 2004 on the Interactive Map

Report type

Hail

Wind

Tornado

Get a Remote Hail Inspection

Not sure if hail may have affected your home on May 20, 2004? 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.

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Frequently asked questions

for homeowners, buyers & sellers

How many storm reports were recorded on May 20, 2004?

Our records show 67 hail, 34 wind, and 1 tornado reports on May 20, 2004, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on May 20, 2004.

What was the largest hail reported on May 20, 2004?

The largest hail size in these storm-report records on May 20, 2004 is 3.00″, reported near Racine, WI.

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 May 20, 2004 — 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 May 20, 2004 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 May 20, 2004?

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 May 20, 2004 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.

Hail, Wind & Tornado Reports on May 20, 2004

NWS Hail Reports on May 20, 2004

NWS Wind Reports on May 20, 2004

NWS Tornado Reports on May 20, 2004

NWS Hail, Wind and Tornado Reports on May 20, 2004 on the Interactive Map

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Frequently asked questions

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