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NOAA/NWS STORM PREDICTION CENTER REPORTS + U.S. CENSUS DATA

Hail, Wind & Tornado Reports in St. Lawrence County, NY

Public hail, wind, and tornado reports across St. Lawrence County, NY from October 10, 1958 through August 14, 2026, sourced from NOAA/NWS Local Storm Reports and SPC storm report data.

Example: 13669 — search hail, wind and tornado public reports for any U.S. ZIP code 
Hail Reports
76
Wind Reports
377
Tornado Reports
10
Max Hail Size
2.75″
Source  NOAA SPC · NWS Local Storm Reports Coverage  St. Lawrence County, NY · 1958–present Updated  Daily · last Aug 14, 2026

Latest NWS Hail Reports in St. Lawrence County

30 reports
Free hail report for your home →
1.25″ hail
Jul 16, 2026
5:10 AM UTC
Hail report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Horseshoe Lake, NY
2.75″ hail
Jul 16, 2026
4:31 AM UTC
Hail report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Hail Report Description: Social media image of hail ranging from 2 to 2.75 inches in diameter.
NWS Hail Report Location: Hermon, NY
2.00″ hail
Jul 16, 2026
4:28 AM UTC
Hail report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Hail Report Description: Social media image of many hailstones of 2 inches in diameter.
NWS Hail Report Location: De Kalb, NY
1.50″ hail
Jul 16, 2026
4:28 AM UTC
Hail report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Hail Report Description: 1.5 inch hail estimated from social media picture.
NWS Hail Report Location: De Kalb, NY
2.00″ hail
Jul 16, 2026
4:18 AM UTC
Hail report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Hail Report Description: Social media image of large hailstones ranging from 1.5 to 2 inches in diameter.
NWS Hail Report Location: De Peyster, NY
1.50″ hail
Jul 3, 2025
8:27 PM UTC
Hail report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Hail Report Description: Half to silver dollar sized hail
NWS Hail Report Location: 4 NE Gouverneur, NY
1.50″ hail
Jul 3, 2025
7:27 PM UTC
Hail report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Hail Report Description: Half to silver dollar sized hail
NWS Hail Report Location: 4 NE Gouverneur, NY
1.00″ hail
May 16, 2022
6:52 PM UTC
Hail report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Nicholville, NY
1.00″ hail
May 16, 2022
5:52 PM UTC
Hail report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Nicholville, NY
1.00″ hail
Mar 29, 2020
9:30 PM UTC
Hail report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 2 S Gouverneur, NY
2.00″ hail
Oct 1, 2019
5:53 PM UTC
Hail report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Massena, NY
1.00″ hail
Oct 1, 2019
5:49 PM UTC
Hail report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Hail Report Description: HAIL SIZE ESTIMATED SLIGHTLY LARGER THAN A QUARTER.
NWS Hail Report Location: 4 WNW Massena, NY
1.25″ hail
Sep 26, 2019
9:33 PM UTC
Hail report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 4 SW Heuvelton, NY
1.00″ hail
Sep 26, 2019
9:12 PM UTC
Hail report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Morristown, NY
1.00″ hail
Jul 11, 2019
9:59 PM UTC
Hail report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Potsdam, NY
Showing 15 of 30
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.

Latest NWS Wind Reports in St. Lawrence County

30 reports
Free hail report + wind check →
UNK mph
Aug 14, 2026
7:14 PM UTC
Wind report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Wind Report Description: Tree down on Somerville Rd.
NWS Wind Report Location: 1 W Somerville, NY
UNK mph
Aug 14, 2026
7:12 PM UTC
Wind report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Wind Report Description: Tree reported down on Hailesboro Street in the village of Gouverneur.
NWS Wind Report Location: Gouverneur, NY
UNK mph
Aug 14, 2026
6:52 PM UTC
Wind report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Wind Report Description: Tree down on Triangle Rd.
NWS Wind Report Location: 1 Se Chippewa Bay, NY
UNK mph
Aug 14, 2026
6:48 PM UTC
Wind report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Wind Report Description: Trees down on School Street.
NWS Wind Report Location: 4 W Edwardsville, NY
UNK mph
Aug 14, 2026
6:48 PM UTC
Wind report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Wind Report Description: Trees down on State Highway 37.
NWS Wind Report Location: 3 Wnw Edwardsville, NY
UNK mph
Aug 11, 2026
1:48 AM UTC
Wind report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Wind Report Description: Tree reported across CR-47. Time estimated by radar.
NWS Wind Report Location: 2 Nnw Converse, NY
UNK mph
Jul 16, 2026
6:00 AM UTC
Wind report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Wind Report Description: Social media showing a large tree down near State Highway 421.
NWS Wind Report Location: 4 E Horseshoe Lake, NY
UNK mph
Jul 16, 2026
5:21 AM UTC
Wind report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Wind Report Description: Several large trees uprooted.
NWS Wind Report Location: Stark, NY
UNK mph
Jul 16, 2026
4:34 AM UTC
Wind report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Wind Report Description: Numerous trees and powerlines are down. A roof has been blown off a house with significant damage to the structure.
NWS Wind Report Location: 4 W South Russell, NY
UNK mph
Jul 16, 2026
4:20 AM UTC
Wind report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Wind Report Description: Delayed report. Numerous trees and power poles were down with several power poles snapped. Estimated at least 50 trees either snapped or uprooted.
NWS Wind Report Location: East De Kalb, NY
UNK mph
Jul 16, 2026
4:16 AM UTC
Wind report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Wind Report Description: Delayed report. Media has relayed and shared images of roof damage... power poles snapped... numerous trees snapped and/or uprooted... and significant damage to a silo. One livestock fatality was also reported.
NWS Wind Report Location: De Peyster, NY
UNK mph
Jul 16, 2026
4:05 AM UTC
Wind report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Wind Report Description: 3 trees down in Morristown.
NWS Wind Report Location: 2 NE Morristown, NY
UNK mph
Jul 16, 2026
4:05 AM UTC
Wind report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Wind Report Description: Tree down in Ogdensburg.
NWS Wind Report Location: 1 SW Ogdensburg, NY
UNK mph
Jul 2, 2026
9:23 PM UTC
Wind report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Wind Report Description: Tree Reported down in the town of Hermon. Time estimated from Radar.
NWS Wind Report Location: Hermon, NY
UNK mph
Jul 2, 2026
8:55 PM UTC
Wind report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Wind Report Description: Multiple trees down on private residences along Black Lake.
NWS Wind Report Location: 4 WNW De Peyster, NY
Showing 15 of 30
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.

Latest NWS Tornado Reports in St. Lawrence County

10 reports
UNK category
May 29, 2026
10:08 PM UTC
Tornado report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Tornado Report Description: Public reported a tornado between North Hammond and Brier Hill... New York. Video indicates the EF-0 tornado touched down in the nearby corn field and toppled an apple tree. Based on video and lack of additional damage... the tornado likely ended near the barn where a well cover was hoisted into one of its windows.
NWS Tornado Report Location: 1 NE North Hammond, NY
UNK category
Aug 11, 2024
6:18 PM UTC
Tornado report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Tornado Report Description: A brief tornado occurred south of Country Club Road near Matoon Creek. EF-0 based on NY State - DHSES drone flyover.
NWS Tornado Report Location: Pikes Corner, NY
F0 category
Jun 9, 2004
3:40 PM EST
Tornado report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Tornado Report Description: A low pressure system moved across southern Quebec during Wednesday, June 9th. The associated trailing cold front tracked slowly across northern New York during the morning and afternoon hours. This front was preceded and accompanied by thunderstorms with damaging winds and weak tornadoes. A weak F0 tornado touched down just southeast of Gouverneur with large trees damaged and some roof damage.
NWS Tornado Report Location: 2 SE Gouverneur, NY
F0 category
Jun 9, 2004
3:15 PM EST
Tornado report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Tornado Report Description: A low pressure system moved across southern Quebec during Wednesday, June 9th. The associated trailing cold front tracked slowly across northern New York during the morning and afternoon hours. This front was preceded and accompanied by thunderstorms with damaging winds and weak tornadoes. A weak F0 tornado touched down near Chippewa Bay and moved southeast. About 50 trees were damaged. There was some structural damage, and the roof of a small structure was dropped in the St Lawrence River.
NWS Tornado Report Location: Chippewa Bay, NY
F1 category
Jul 10, 1989
4:20 AM EST
Tornado report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, NY
F0 category
Aug 9, 1988
9:30 PM EST
Tornado report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, NY
F0 category
Jul 24, 1987
2:35 PM CST
Tornado report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, NY
F2 category
Aug 15, 1986
4:30 PM CST
Tornado report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, NY
F1 category
May 31, 1985
8:30 PM CST
Tornado report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, NY
F1 category
Aug 7, 1972
12:00 PM CST
Tornado report for St. Lawrence County, NY
St. Lawrence County · 37,084 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, NY
Showing 10 of 10
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 in St. Lawrence County on the Interactive Map

Report type
Hail
Wind
Tornado

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Browse Cities with NWS Storm Reports in St. Lawrence County

Ogdensburg, NY 55
Hail, wind & tornado reports
Potsdam, NY 39
Hail, wind & tornado reports
Massena, NY 38
Hail, wind & tornado reports
Colton, NY 30
Hail, wind & tornado reports
Gouverneur, NY 28
Hail, wind & tornado reports
Canton, NY 27
Hail, wind & tornado reports
Star Lake, NY 21
Hail, wind & tornado reports
Hammond, NY 19
Hail, wind & tornado reports
Edwards, NY 18
Hail, wind & tornado reports
Hermon, NY 17
Hail, wind & tornado reports
Cranberry Lake, NY 16
Hail, wind & tornado reports
Morristown, NY 15
Hail, wind & tornado reports
Norfolk, NY 15
Hail, wind & tornado reports
Waddington, NY 14
Hail, wind & tornado reports
Heuvelton, NY 13
Hail, wind & tornado reports
Brasher Falls, NY 12
Hail, wind & tornado reports

NWS Storm Reports & Census Data

U.S. Census Data · County

St. Lawrence County, NY area census snapshot

People & households
Population107,796
Households41,732
Housing units51,884
Income
Median household income$61,900
$100k+ households36.3%
$150k+ households13.6%
Housing stock
Single-family detached37,084
Attached single-family626
Small multifamily5,595
Large multifamily3,252
Mobile homes5,301
Housing mix
Single-family share71.5%
Attached-home share1.2%
Multifamily share17.1%
Mobile-home share10.2%
Ownership & occupancy
Owner-occupied29,840
Renter-occupied11,892
Vacant units10,152
Home value & age
Median home value$119,800
Owner homes $300k+11.4%
Owner homes $500k+2.8%
Owner homes $750k+1.3%
Median year built1964
Older-home share67.5%
Vehicle context
Households with cars37,300
Free hail maps

This snapshot is for local area context only and describes the selected state, county, city, or ZIP area — not a specific home or property. For ZIP-level estimated hail impact, use Free Hail Maps to generate a hail report with key impact details for that ZIP.

Top ZIP Codes with NWS Storm Reports in St. Lawrence County

13669 52
Ogdensburg, NY Hail, wind & tornado reports
13676 49
Potsdam, NY Hail, wind & tornado reports
13662 37
Akwesasne, NY Hail, wind & tornado reports
13617 33
Canton, NY Hail, wind & tornado reports
13642 30
Hailesboro, NY Hail, wind & tornado reports
12986 28
Tupper Lake, NY Hail, wind & tornado reports
13648 24
NY Hail, wind & tornado reports
13684 19
NY Hail, wind & tornado reports
12847 17
Long Lake, NY Hail, wind & tornado reports
13646 17
Hammond, NY Hail, wind & tornado reports
13658 17
NY Hail, wind & tornado reports
13608 15
Antwerp, NY Hail, wind & tornado reports
13667 15
Norfolk, NY Hail, wind & tornado reports
12980 14
St. Regis Falls, NY Hail, wind & tornado reports
13625 12
Colton, NY Hail, wind & tornado reports
12927 11
Cranberry Lake, NY Hail, wind & tornado reports
13613 11
Brasher Falls, NY Hail, wind & tornado reports
13635 10
Edwards, NY Hail, wind & tornado reports

Get a Remote Hail Inspection

Not sure if hail may have affected your home in St. Lawrence County? 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 hail, wind, and tornado reports does St. Lawrence County have on record?

Our records show 76 hail, 377 wind, and 10 tornado reports in St. Lawrence County, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on August 14, 2026.

What is the largest hail ever reported in St. Lawrence County?

The largest hail size in these storm-report records in St. Lawrence County is 2.75″. It was reported near Hermon, NY on July 16, 2026.

A storm report showed up near my home in St. Lawrence County — does that mean my roof is damaged?

Not necessarily. A storm report only means hail, wind, or a tornado was observed nearby; it does not confirm damage at any specific address, and conditions change from block to block. Check an address-level hail report first, and if it looks significant, find a local pro that serves St. Lawrence County and ask about a Remote Hail Inspection before anyone climbs on the roof.

I am buying a home in St. Lawrence County — why should I look at its storm history?

Recent hail or wind can leave a roof or exterior with damage that is easy to miss during a walkthrough, and a recent roof replacement is sometimes an insurance job after a storm. Reviewing the storm history for a St. Lawrence County address before closing helps you ask informed questions about roof age, past repairs, and any prior claims.

I am selling a home in St. Lawrence County — how does this help me?

Knowing the storm history for your address lets you answer buyer questions with confidence, document repairs you have already made, and decide whether a pre-listing roof check is worthwhile. A clear hail history removes a common sticking point during negotiations.

How do I check hail history for a specific St. Lawrence County address?

Use the address search to pull a free address-level hail report for any property in St. Lawrence County — 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 across St. Lawrence County, NY, sourced from NOAA SPC and NWS Local Storm Reports. They show where hail, wind, or tornado activity was reported in St. Lawrence County, 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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