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NOAA/NWS STORM PREDICTION CENTER STORM REPORTS

Hail, Wind & Tornado Reports on July 20, 2003

Public hail, wind, and tornado reports across the United States on July 20, 2003 from July 20, 2003 through July 20, 2003, 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
166
Wind Reports
124
Tornado Reports
17
Max Hail Size
3.00″
Source  NOAA SPC · NWS Local Storm Reports Coverage  United States · July 20, 2003 · 2003–present Updated  Daily · last Jul 20, 2003

NWS Hail Reports on July 20, 2003

166 reports
Free hail report for your home →
1.00″ hail
Jul 20, 2003
11:50 PM CST
Hail report for July 20, 2003
Cook County · 903,365 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Lansing, IL
1.00″ hail
Jul 20, 2003
11:16 PM CST
Hail report for July 20, 2003
Muscatine County · 13,730 Homes in County
Hail Report Description: Lasted 10 minutes
NWS Hail Report Location: Muscatine, IA
0.75″ hail
Jul 20, 2003
10:05 PM CST
Hail report for July 20, 2003
Cook County · 903,365 Homes in County
Hail Report Description: Penny size hail was reported along Lincoln Avenue and lasted 10 minutes.
NWS Hail Report Location: Lincolnwood, IL
0.75″ hail
Jul 20, 2003
9:55 PM CST
Hail report for July 20, 2003
Webster County · 1,582 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 2 E Inavale, NE
0.75″ hail
Jul 20, 2003
9:52 PM CST
Hail report for July 20, 2003
Cook County · 903,365 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Des Plaines, IL
0.75″ hail
Jul 20, 2003
9:52 PM CST
Hail report for July 20, 2003
Cook County · 903,365 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Arlington Hgts, IL
1.00″ hail
Jul 20, 2003
9:50 PM CST
Hail report for July 20, 2003
Cook County · 903,365 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Palatine, IL
1.75″ hail
Jul 20, 2003
9:34 PM CST
Hail report for July 20, 2003
Kankakee County · 32,312 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Kankakee, IL
0.75″ hail
Jul 20, 2003
10:30 PM EST
Hail report for July 20, 2003
Morgan County · 6,684 Homes in County
Hail Report Description: The Morgan county Emergency Management Director reported penny-sized hail.
NWS Hail Report Location: Bostwick, GA
0.75″ hail
Jul 20, 2003
9:15 PM CST
Hail report for July 20, 2003
Lake County · 179,407 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Long Grove, IL
0.88″ hail
Jul 20, 2003
9:02 PM CST
Hail report for July 20, 2003
Clayton County · 7,162 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 2 SW Volga, IA
1.50″ hail
Jul 20, 2003
9:01 PM CST
Hail report for July 20, 2003
Decatur County · 2,834 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 2 S Lamoni, IA
1.75″ hail
Jul 20, 2003
8:50 PM CST
Hail report for July 20, 2003
Adams County · 10,059 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Ayr, NE
0.88″ hail
Jul 20, 2003
8:48 PM CST
Hail report for July 20, 2003
Fayette County · 7,962 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 2 N Arlington, IA
1.00″ hail
Jul 20, 2003
8:45 PM CST
Hail report for July 20, 2003
Fayette County · 7,962 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1 S Arlington, IA
Showing 15 of 166
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 July 20, 2003

124 reports
Free hail report + wind check →
70 mph
Jul 20, 2003
11:50 PM CST
Wind report for July 20, 2003
Whiteside County · 20,984 Homes in County
Wind Report Description: Radio tower at Fire Station downed
NWS Wind Report Location: Coleta, IL
81 mph
Jul 20, 2003
11:34 PM CST
Wind report for July 20, 2003
Mercer County · 6,373 Homes in County
Wind Report Description: Also reported by spotters. Considerable damage in Viola, Hamlet, North Henderson, and Aledo with numerous trees and power lines down. Large areas of corn flattened.
NWS Wind Report Location: Countywide, IL
75 mph
Jul 20, 2003
11:27 PM CST
Wind report for July 20, 2003
Rock Island County · 46,655 Homes in County
Wind Report Description: Also reported by emergency manager. Southwest part of lower Rock Island county from the Mississippi River to just west of Reynolds. Power lines down with corn flattened.
NWS Wind Report Location: Countywide, IL
68 mph
Jul 20, 2003
11:27 PM CST
Wind report for July 20, 2003
Rock Island County · 46,655 Homes in County
Wind Report Description: Lock & Dam 16; unconfirmed gust of 90 knots (104 mph)
NWS Wind Report Location: 6 WNW Illinois City, IL
60 mph
Jul 20, 2003
11:24 PM CST
Wind report for July 20, 2003
Muscatine County · 13,730 Homes in County
Wind Report Description: Trees down on U.S. 61
NWS Wind Report Location: Muscatine, IA
58 mph
Jul 20, 2003
11:24 PM CST
Wind report for July 20, 2003
Muscatine County · 13,730 Homes in County
Wind Report Description: KMUT AWOS
NWS Wind Report Location: Muscatine Muni Arpt, IA
70 mph
Jul 20, 2003
11:20 PM CST
Wind report for July 20, 2003
Muscatine County · 13,730 Homes in County
Wind Report Description: Tree down on a trailer
NWS Wind Report Location: 5 NNE Muscatine, IA
60 mph
Jul 20, 2003
11:20 PM CST
Wind report for July 20, 2003
Carroll County · 7,005 Homes in County
Wind Report Description: Tree limbs down on Illinois 84
NWS Wind Report Location: 5 NNW Savanna, IL
64 mph
Jul 20, 2003
11:15 PM CST
Wind report for July 20, 2003
Muscatine County · 13,730 Homes in County
Wind Report Description: Tree down on a 35 foot camper
NWS Wind Report Location: 3 S Atalissa, IA
70 mph
Jul 20, 2003
11:07 PM CST
Wind report for July 20, 2003
Muscatine County · 13,730 Homes in County
Wind Report Description: 6 power poles down
NWS Wind Report Location: 2 E Atalissa, IA
64 mph
Jul 20, 2003
11:00 PM CST
Wind report for July 20, 2003
Muscatine County · 13,730 Homes in County
Wind Report Description: Trees and power lines down
NWS Wind Report Location: Atalissa, IA
60 mph
Jul 20, 2003
10:52 PM CST
Wind report for July 20, 2003
Johnson County · 32,661 Homes in County
Wind Report Description: KIOW measured 49 knots @ 2301 CST
NWS Wind Report Location: Iowa City, IA
60 mph
Jul 20, 2003
10:45 PM CST
Wind report for July 20, 2003
Johnson County · 32,661 Homes in County
Wind Report Description: Heavy rain for 8 minutes
NWS Wind Report Location: 3 N Coralville, IA
70 mph
Jul 20, 2003
10:33 PM CST
Wind report for July 20, 2003
Cedar County · 6,845 Homes in County
Wind Report Description: Corn flattened with trees down and an out building damaged
NWS Wind Report Location: 2 NNE Lowden, IA
58 mph
Jul 20, 2003
11:30 PM EST
Wind report for July 20, 2003
Elkhart County · 55,807 Homes in County
Wind Report Description: Law enforcement reported trees and power lines down in Elkhart.
NWS Wind Report Location: 2 S Elkhart, IN
Showing 15 of 124
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 July 20, 2003

17 reports
F1 category
Jul 20, 2003
10:52 PM CST
Tornado report for July 20, 2003
Linn County · 68,380 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: 1 SW Mt Vernon, IA
F1 category
Jul 20, 2003
10:24 PM CST
Tornado report for July 20, 2003
Cedar County · 6,845 Homes in County
Tornado Report Description: Strong F1...winds estimated around 110 mph.
NWS Tornado Report Location: 2 NW Clarence, IA
F2 category
Jul 20, 2003
10:06 PM CST
Tornado report for July 20, 2003
Linn County · 68,380 Homes in County
Tornado Report Description: Strong F2...winds estimated at 140 mph.
NWS Tornado Report Location: Cedar Rapids, IA
F2 category
Jul 20, 2003
9:58 PM CST
Tornado report for July 20, 2003
Linn County · 68,380 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: 1 N Covington, IA
F0 category
Jul 20, 2003
9:47 PM CST
Tornado report for July 20, 2003
Jones County · 7,163 Homes in County
Tornado Report Description: Affected rural areas
NWS Tornado Report Location: 1 S Martelle, IA
F1 category
Jul 20, 2003
9:17 PM CST
Tornado report for July 20, 2003
Benton County · 9,761 Homes in County
Tornado Report Description: Traveled through mainly rural areas
NWS Tornado Report Location: 9 NNW Vinton, IA
F0 category
Jul 20, 2003
7:15 PM CST
Tornado report for July 20, 2003
Humboldt County · 3,858 Homes in County
Tornado Report Description: Brief touchdown in a farm field.
NWS Tornado Report Location: 4 S Thor, IA
F0 category
Jul 20, 2003
6:05 PM CST
Tornado report for July 20, 2003
Woodbury County · 31,632 Homes in County
Tornado Report Description: A brief tornado caused no reported damage.
NWS Tornado Report Location: 4 SE Moville, IA
F0 category
Jul 20, 2003
5:56 PM CST
Tornado report for July 20, 2003
Nance County · 1,517 Homes in County
Tornado Report Description: A brief tornado touched down west of Fullerton.
NWS Tornado Report Location: 10 W Fullerton, NE
F0 category
Jul 20, 2003
5:37 PM CST
Tornado report for July 20, 2003
Platte County · 10,844 Homes in County
Tornado Report Description: A brief tornado touchdown was reported by emergency management just inside the Platte county border between Silver Creek and Duncan. The tornado touched down in an open field and caused little or no damage.
NWS Tornado Report Location: 3 SW Duncan, NE
F1 category
Jul 20, 2003
5:30 PM CST
Tornado report for July 20, 2003
Platte County · 10,844 Homes in County
Tornado Report Description: This tornado was also caught on film and caused damage to buildings at 3 farmsteads and severely damaged at least 50 trees. Several center pivot irrigation systems were knocked over and a 500 gallon fuel barrel was tossed into an adjacent field.
NWS Tornado Report Location: 8 W Platte Center, NE
F1 category
Jul 20, 2003
4:50 PM CST
Tornado report for July 20, 2003
Stanton County · 2,241 Homes in County
Tornado Report Description: A small tornado that was caught on film touched down near Highway 32 west of the Highway 57 junction. The tornado destroyed a barn and some grain bins, and cleaned some crops clear to the ground. Several cattle were also missing due to the storm.
NWS Tornado Report Location: 8 SW Stanton, NE
F0 category
Jul 20, 2003
4:40 PM CST
Tornado report for July 20, 2003
Stanton County · 2,241 Homes in County
Tornado Report Description: A brief touchdown of a tornado was reported in an open field southwest of Stanton near the Wood Duck wildlife area. This was from the same supercell that produced another, slightly larger, tornado 10 minutes later.
NWS Tornado Report Location: 3 SW Stanton, NE
F1 category
Jul 20, 2003
1:15 PM EST
Tornado report for July 20, 2003
Calhoun County · 43,893 Homes in County
Tornado Report Description: A F1 tornado struck Calhoun county.
NWS Tornado Report Location: Battle Creek, MI
F0 category
Jul 20, 2003
3:00 AM CST
Tornado report for July 20, 2003
Marshall County · 2,002 Homes in County
Tornado Report Description: A tornado touched down briefly south of Britton.
NWS Tornado Report Location: 8 S Britton, SD
Showing 15 of 17
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 July 20, 2003 on the Interactive Map

Report type
Hail
Wind
Tornado

Get a Remote Hail Inspection

Not sure if hail may have affected your home on July 20, 2003? 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.

Frequently asked questions

for homeowners, buyers & sellers
How many storm reports were recorded on July 20, 2003?

Our records show 166 hail, 124 wind, and 17 tornado reports on July 20, 2003, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on July 20, 2003.

What was the largest hail reported on July 20, 2003?

The largest hail size in these storm-report records on July 20, 2003 is 3.00″, reported near Stanton, NE.

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 July 20, 2003 — 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 July 20, 2003 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 July 20, 2003?

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 July 20, 2003 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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