10,000 U.S. Storms Turn Severe Each Year -- Mercury Insurance Urges Pre-Storm Action

Mercury Insurance (NYSE: MCY) warns that roughly 100,000 U.S. thunderstorms occur annually and about 10% (≈10,000) turn severe, producing hail, tornadoes and destructive wind.

Rhea-AI Summary

Mercury Insurance (NYSE: MCY) warns that roughly 100,000 U.S. thunderstorms occur annually and about 10% (≈10,000) turn severe, producing hail, tornadoes and destructive wind. The company highlights regional seasonality, recent 2025 tornado counts, vehicle and property risks, and pre-storm preparedness steps for homeowners and drivers.

Guidance covers hail protection, wind preparations, California flood risks, insurance coverage checks, and steps to reduce claim severity and recovery time.

Argus Mar 5 session

-1.96% close to close Open Argus

Details

News Market Reaction – MCY

On Mar 5, the day this news came out, MCY closed 1.96% below the previous close.

Data tracked by StockTitan Argus for the Mar 5 session.

Market Context

This announcement underscores Mercury’s focus on severe-weather preparedness, highlighting 100,000 U...

Analysis

This announcement underscores Mercury’s focus on severe-weather preparedness, highlighting 100,000 U.S. thunderstorms annually and about 5,000 hail events, with regional tornado and flood risks. It fits a recent pattern of educational and safety-oriented communications rather than financial updates. Investors following the story may watch how actual catastrophe experience, future claims trends, and any rating-agency commentary compare with these risk-prevention messages, especially given the emphasis on hail, tornado, and atmospheric river exposure.

Key Figures

Annual thunderstorms: 100,000 thunderstorms Severe storm share: 10% Hail events: 5,000 +4 more

Annual thunderstorms

100,000 thunderstorms

United States per year

Severe storm share

10%

Thunderstorms escalating into severe storms

Hail events

5,000

U.S. hail events referenced ahead of peak season

Texas tornado reports

162 twisters

Preliminary tornado reports in Texas in 2025

Illinois tornado reports

nearly 150

Preliminary tornado reports in Illinois in 2025

Homes damaged

more than 100 homes

Single tornado near Houston in November 2025

California precipitation share

75%

Share of annual precipitation from November through March

Historical Context

5 past events · Latest: Mar 03

5 events

1. Mar 03

   Consumer tax guidance

   24h Move

   -0.3%

   Guidance on organizing insurance documents ahead of tax filing deadlines.

2. Feb 26

   Auto theft trends

   24h Move

   +1.3%

   Update on 23% decline in 2025 auto thefts and evolving tech-based risks.

3. Feb 24

   Rating affirmation

   24h Move

   +2.3%

   AM Best affirmed A rating and stable outlook citing very strong balance sheet.

4. Feb 24

   Service recognition

   24h Move

   +2.3%

   Named to USA TODAY list for top customer service in financial services.

5. Feb 19

   Teen driving risks

   24h Move

   -1.0%

   Safety-focused release on elevated crash risk for first-year teen drivers.

24h Move is the share-price change in the day after each event; other market factors may also have contributed.

Key Terms

atmospheric rivers, comprehensive coverage, flood insurance coverage

3 terms

atmospheric rivers technical

"California's severe weather looks different... tied to atmospheric rivers during the cooler months"

Atmospheric rivers are long, narrow bands of concentrated water vapor that move through the sky and release large amounts of rain or snow when they hit land — like rivers in the air delivering a heavy load of moisture. They matter to investors because they can trigger flooding, landslides, power outages and crop damage that affect insurance payouts, supply chains, utility operations and commodity prices, which in turn can change company costs and future earnings.

comprehensive coverage financial

"Hail, falling debris and flash flooding are leading drivers... Comprehensive coverage typically protects"

Comprehensive coverage describes a broad, thorough level of protection or reporting that includes most relevant risks, facts or items within a single package or account. For investors, it means fewer surprises—whether it’s an insurance policy that shields against many loss types or a research/reporting effort that monitors all key financial, legal and operational issues—so they can judge potential downside and make decisions with more confidence, like an umbrella that shields you from many kinds of rain.

flood insurance coverage financial

"Evaluating separate flood insurance coverage, as standard homeowners policies do not cover flood damage"

Flood insurance coverage is a policy that pays for damage to buildings, inventory, and business operations caused by rising water from storms, river overflow, or coastal surge. For investors, it matters because it reduces the financial hit from flood losses—similar to an umbrella for a rainy day—affecting property values, operating costs, loan requirements and the predictability of future cash flows.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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 With 5,000 hail events and peak tornado months ahead, families urged to act now

LOS ANGELES, March 5, 2026 /PRNewswire/ -- The United States experiences roughly 100,000 thunderstorms each year — and about 10% escalate into severe storms capable of producing damaging hail, tornadoes and destructive wind. As peak tornado and hail season approaches, Mercury Insurance (NYSE/NYSE Texas: MCY) is urging homeowners and drivers to take preventive steps before the most volatile weather arrives.

Spring is peak season for severe thunderstorms, especially in Texas and Oklahoma, where tornado activity ramps up from April through June.

Texas led the nation in preliminary tornado reports in 2025 with 162 twisters, followed closely by Illinois with nearly 150 — a clear reminder of how frequently severe storms threaten homes and vehicles.

Damage can escalate quickly. A single tornado near Houston in November 2025 damaged more than 100 homes.

Risk isn't limited to the Plains. Georgia typically peaks from March through May, Illinois from April through June, and in the Northeast, New York and New Jersey see their highest tornado activity from June through August — extending the severe weather season well beyond spring.

"Severe weather can create significant damage in a matter of minutes, which is why preparation ahead of the season matters," said Steve Bennett, Head of Climate and Catastrophe Science at Mercury Insurance. "Reducing that risk often comes down to a few practical steps taken early — protecting vulnerable property, paying attention to forecasts, and understanding coverage before severe weather arrives."

Regional Risk: Where Severe Weather Hits Hardest

Texas & Central Plains: Hail Alley

Large hail can damage roofs, siding, solar panels and vehicles in minutes. Texas consistently leads the country in hail-related insurance claims.

Prepare by:

• Parking vehicles under cover when severe weather is forecast
• Inspecting roofing materials and sealing vulnerable areas
• Trimming trees and securing loose outdoor property

Midwest & Southeast: Tornadoes and Destructive Winds

High-wind events and tornadoes can cause structural roof failure, downed power lines and widespread debris damage.

Prepare by:

• Reinforcing garage doors
• Securing patio furniture and outdoor equipment when severe weather is forecast
• Reviewing wind coverage limits in homeowners policies

California: Atmospheric Rivers and Flood Risk

California's severe weather looks different from the tornado and hail threats common in Texas and the Plains. Much of the state's weather-related property risk is tied to atmospheric rivers during the cooler months, when heavy rain can drive flooding, runoff and debris flows — especially in and below wildfire burn scars. On average, about 75% of California's annual precipitation falls from November through March.

Prepare by:

• Clearing gutters and storm drains
• Moving vehicles to higher ground during flood watches
• Evaluating separate flood insurance coverage, as standard homeowners policies do not cover flood damage

Vehicles at Elevated Risk During Spring Storms

• Hail, falling debris and flash flooding are leading drivers of spring auto claims. Comprehensive coverage typically protects against these perils.
• "Vehicles are often exposed during fast-moving storm systems," Bennett said. "Covered parking, paying attention to weather alerts and understanding your coverage can significantly reduce both disruption and out-of-pocket costs."

Why Acting Before the Storm Matters

Severe storm losses have steadily increased due to expanding development in high-risk areas and rising material and labor costs. Proactive maintenance and risk awareness can help:

• Reduce claim severity
• Prevent secondary water intrusion damage
• Shorten recovery timelines

"Insurance helps families recover," Bennett added. "But resilience begins before the first weather warning."

For storm preparation resources and coverage guidance, visit the Mercury Blog.

About Mercury Insurance

Mercury Insurance (NYSE: MCY) is a multiple-line insurance carrier predominantly offering personal auto, homeowners, renters and commercial insurance through a network of independent agents in Arizona, California, Georgia, Illinois, Nevada, New Jersey, New York, Oklahoma, Texas and Virginia, as well as auto insurance in Florida. Mercury writes other lines of insurance in various states, including commercial, business owners and business auto, landlord, home-sharing, ride-hailing and mechanical protection insurance.

Since 1962, Mercury has provided customers with tremendous value for their insurance dollar by pairing ultra-competitive rates with excellent customer service, through more than 4,200 employees and a network of more than 6,340 independent agents in 11 states. Mercury has earned an "A" rating from A.M. Best, as well as "Best Auto Insurance Company" designations from Forbes and Insure.com. For more information visit www.MercuryInsurance.com or follow the company on X, Instagram or Facebook.

Media interested in receiving updates from Mercury can learn more at the Mercury Newsroom.

View original content to download multimedia:https://www.prnewswire.com/news-releases/10-000-us-storms-turn-severe-each-year--mercury-insurance-urges-pre-storm-action-302705272.html

SOURCE Mercury Insurance

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many U.S. thunderstorms become severe each year, and what does MCY (MCY) say investors should note?

About 10% of U.S. thunderstorms—roughly 10,000 storms—become severe annually. According to Mercury Insurance, this frequency raises potential claim exposure and highlights the importance of proactive risk mitigation by policyholders to limit loss severity.

What regional severe-storm risks did Mercury Insurance (MCY) highlight for spring 2026?

Texas and the Central Plains face peak hail and tornado risk from April through June. According to Mercury Insurance, Midwest, Southeast and Northeast regions have distinct peak months, so region-specific preparedness and coverage review are advised.

What vehicle protections does Mercury Insurance recommend before spring storms for MCY policyholders?

Mercury Insurance recommends covered parking and confirming comprehensive auto coverage protects against hail, falling debris and flash flooding. According to Mercury Insurance, these steps reduce disruption and potential out-of-pocket costs for drivers.

Why does Mercury Insurance urge California homeowners to check flood risk ahead of storm season?

California's heavy rainfall risk concentrates in November–March and can cause flooding, especially below burn scars. According to Mercury Insurance, standard homeowners policies exclude flood damage, so separate flood coverage should be evaluated.

What practical pre-storm actions does Mercury Insurance (MCY) recommend to reduce property damage?

Simple steps include parking vehicles under cover, sealing and inspecting roofs, trimming trees, and securing outdoor items. According to Mercury Insurance, these measures can reduce claim severity, prevent secondary water intrusion, and shorten recovery timelines.