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

Hail, Wind & Tornado Reports in San Mateo County, CA

Public hail, wind, and tornado reports across San Mateo County, CA from April 1, 1958 through December 28, 2025, sourced from NOAA/NWS Local Storm Reports and SPC storm report data.

Example: 94128 — search hail, wind and tornado public reports for any U.S. ZIP code 
Hail Reports
0
Wind Reports
28
Tornado Reports
4
Max Hail Size
--
Source  NOAA SPC · NWS Local Storm Reports Coverage  San Mateo County, CA · 1958–present Updated  Daily · last Dec 28, 2025

Latest NWS Hail Reports in San Mateo County

0 reports
Free hail report for your home →

No hail reports were found for this selection.

Showing 0 of 0
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 San Mateo County

28 reports
Free hail report + wind check →
UNK mph
Dec 28, 2025
10:30 AM UTC
Wind report for San Mateo County, CA
San Mateo County · 158,045 Homes in County
Wind Report Description: Broadcast media reports that a tree fell which led to additional power lines and trees coming down. 4 vehicles were damaged. Additionally... in El Granada a tree fell on apartment complex causing exterior damage. Location estimated. Time estimated based on radar and surrounding wind gust observations.
NWS Wind Report Location: El Granada, CA
62 mph
Dec 27, 2025
9:25 AM UTC
Wind report for San Mateo County, CA
San Mateo County · 158,045 Homes in County
Wind Report Description: Delayed report. AWOS station KHAF Half Moon Bay Airport.
NWS Wind Report Location: 2 W El Granada, CA
67 mph
Dec 26, 2025
10:50 AM UTC
Wind report for San Mateo County, CA
San Mateo County · 158,045 Homes in County
Wind Report Description: Corrects previous non-tstm wnd gst report from 2 N Montara. Delayed report. Mesonet station 620PG North Peak Access Road.
NWS Wind Report Location: 2 N Montara, CA
UNK mph
Dec 25, 2025
1:06 PM UTC
Wind report for San Mateo County, CA
San Mateo County · 158,045 Homes in County
Wind Report Description: Tree down blocking the westbound lanes of westbound State Route 92 at Route 35.
NWS Wind Report Location: 2 SW Highlands, CA
73 mph
Dec 25, 2025
10:56 AM UTC
Wind report for San Mateo County, CA
San Mateo County · 158,045 Homes in County
Wind Report Description: Peak wind gust at SFO at 2:56 A.M. Gusts above 58 mph were noted on observations between 2:40 A.M. and 2:59 A.M.
NWS Wind Report Location: 2 NE Millbrae, CA
61 mph
Dec 25, 2025
10:20 AM UTC
Wind report for San Mateo County, CA
San Mateo County · 158,045 Homes in County
Wind Report Description: Ambient weather station reported 60.6 mph wind gust.
NWS Wind Report Location: 2 SSW Broadmoor, CA
61 mph
Mar 12, 2025
9:36 PM UTC
Wind report for San Mateo County, CA
San Mateo County · 158,045 Homes in County
Wind Report Description: Weather station in Pacifica reported a 61mph wind gust.
NWS Wind Report Location: 2 NW Pacifica, CA
61 mph
Mar 12, 2025
9:30 PM UTC
Wind report for San Mateo County, CA
San Mateo County · 158,045 Homes in County
Wind Report Description: Mesonet station 180PG Sweeney Ridge.
NWS Wind Report Location: 1 ESE Pacifica, CA
UNK mph
Mar 12, 2025
9:24 PM UTC
Wind report for San Mateo County, CA
San Mateo County · 158,045 Homes in County
Wind Report Description: Spotter reported strong winds which caused the damage to their play structure. The secured top was blown off and over the fence... the first time it happened in 30 years.
NWS Wind Report Location: 2 NNW Pacifica, CA
58 mph
Mar 12, 2025
9:20 PM UTC
Wind report for San Mateo County, CA
San Mateo County · 158,045 Homes in County
Wind Report Description: Mesonet station PG784 Lake Drive.
NWS Wind Report Location: 1 WSW San Bruno, CA
UNK mph
Dec 14, 2024
2:56 PM UTC
Wind report for San Mateo County, CA
San Mateo County · 158,045 Homes in County
Wind Report Description: Large tree down on southbound Interstate 280 south of Trousdale Drive.
NWS Wind Report Location: 1 S Millbrae, CA
UNK mph
Dec 14, 2024
2:26 PM UTC
Wind report for San Mateo County, CA
San Mateo County · 158,045 Homes in County
Wind Report Description: Tree blocking the onramp from East Millbrae Ave to Southbound US Highway 101.
NWS Wind Report Location: 1 E Millbrae, CA
83 mph
Dec 14, 2024
2:09 PM UTC
Wind report for San Mateo County, CA
San Mateo County · 158,045 Homes in County
Wind Report Description: Peak wind gust of 72 knots or 83 mph measured at San Francisco International Airport just after 6 AM.
NWS Wind Report Location: 2 NE Millbrae, CA
UNK mph
Feb 5, 2024
1:09 AM UTC
Wind report for San Mateo County, CA
San Mateo County · 158,045 Homes in County
Wind Report Description: 3-inch tree limbs broken; Power poles broken.
NWS Wind Report Location: 1 NNW San Carlos, CA
UNK mph
Feb 4, 2024
9:10 PM UTC
Wind report for San Mateo County, CA
San Mateo County · 158,045 Homes in County
Wind Report Description: 1-inch tree limbs broken; Shingles blown off.
NWS Wind Report Location: 1 NNW San Carlos, CA
Showing 15 of 28
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 San Mateo County

4 reports
F1 category
Mar 20, 2005
3:35 PM PST
Tornado report for San Mateo County, CA
San Mateo County · 158,045 Homes in County
Tornado Report Description: An F1 tornado touched down in South San Francisco damaging approximately 60 structures.
NWS Tornado Report Location: South San Francisco, CA
F0 category
Feb 7, 1998
2:00 PM PST
Tornado report for San Mateo County, CA
San Mateo County · 158,045 Homes in County
Tornado Report Description: Weak tornado ripped up some trees. Appears it began as a waterspout and moved on shore.
NWS Tornado Report Location: Half Moon Bay, CA
F0 category
Mar 10, 1986
1:45 PM PST
Tornado report for San Mateo County, CA
San Mateo County · 158,045 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, CA
UNK category
Apr 1, 1958
2:25 AM CST
Tornado report for San Mateo County, CA
San Mateo County · 158,045 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, CA
Showing 4 of 4
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 San Mateo County on the Interactive Map

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Browse Cities with NWS Storm Reports in San Mateo County

Millbrae, CA 7
Hail, wind & tornado reports
Pacifica, CA 3
Hail, wind & tornado reports
San Bruno, CA 3
Hail, wind & tornado reports
Broadmoor, CA 2
Hail, wind & tornado reports
Burlingame, CA 2
Hail, wind & tornado reports
El Granada, CA 2
Hail, wind & tornado reports
Montara, CA 2
Hail, wind & tornado reports
Pescadero, CA 2
Hail, wind & tornado reports
San Carlos, CA 2
Hail, wind & tornado reports
East Palo Alto, CA 1
Hail, wind & tornado reports
Half Moon Bay, CA 1
Hail, wind & tornado reports
Highlands, CA 1
Hail, wind & tornado reports
Loma Mar, CA 1
Hail, wind & tornado reports
Menlo Park, CA 1
Hail, wind & tornado reports
Moss Beach, CA 1
Hail, wind & tornado reports
South San Francisco, CA 1
Hail, wind & tornado reports

NWS Storm Reports & Census Data

U.S. Census Data · County

San Mateo County, CA area census snapshot

People & households
Population745,100
Households264,424
Housing units285,558
Income
Median household income$156,000
$100k+ households36.3%
$150k+ households20.1%
Housing stock
Single-family detached158,045
Attached single-family24,804
Small multifamily34,925
Large multifamily64,380
Mobile homes3,139
Housing mix
Single-family share55.4%
Attached-home share8.7%
Multifamily share34.8%
Mobile-home share1.1%
Ownership & occupancy
Owner-occupied156,244
Renter-occupied108,180
Vacant units21,134
Home value & age
Median home value$1,494,500
Owner homes $300k+96.3%
Owner homes $500k+94.9%
Owner homes $750k+90.7%
Median year built1966
Older-home share73.3%
Vehicle context
Households with cars249,521
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 San Mateo County

94128 6
South San Francisco, CA Hail, wind & tornado reports
94044 4
Pacifica, CA Hail, wind & tornado reports
94010 3
Hillsborough, CA Hail, wind & tornado reports
94019 2
Half Moon Bay, CA Hail, wind & tornado reports
94038 2
Moss Beach, CA Hail, wind & tornado reports
94060 2
Pescadero, CA Hail, wind & tornado reports
94070 2
San Carlos, CA Hail, wind & tornado reports
94080 2
South San Francisco, CA Hail, wind & tornado reports
94014 1
Daly City, CA Hail, wind & tornado reports
94015 1
Daly City, CA Hail, wind & tornado reports
94030 1
Millbrae, CA Hail, wind & tornado reports
94037 1
Montara, CA Hail, wind & tornado reports
94062 1
Woodside, CA Hail, wind & tornado reports
94063 1
Redwood City, CA Hail, wind & tornado reports
94066 1
San Bruno, CA Hail, wind & tornado reports
94303 1
Palo Alto, CA Hail, wind & tornado reports

Get a Remote Hail Inspection

Not sure if hail may have affected your home in San Mateo 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 San Mateo County have on record?

Our records show 0 hail, 28 wind, and 4 tornado reports in San Mateo County, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on December 28, 2025.

What is the largest hail ever reported in San Mateo County?

No reported hail size is available for this selection.

A storm report showed up near my home in San Mateo 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 San Mateo County and ask about a Remote Hail Inspection before anyone climbs on the roof.

I am buying a home in San Mateo 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 San Mateo County address before closing helps you ask informed questions about roof age, past repairs, and any prior claims.

I am selling a home in San Mateo 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 San Mateo County address?

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