Lewisville Disaster Risk Score & Hazard Analysis
With a population of 128,313 and a calculated risk score of 97.5, Lewisville faces unique challenges. This page is a complete hazard risk assessment for Lewisville, TX. Settling down in Lewisville connects you to a vibrant community. However, it also comes with specific climate realities. Specifically, the area has a heightened risk of tornadoes.
Total Risk Score
The numbers don't lie. Lewisville sits at a Risk Score of 97.452. This is driven by a combination of factors, most notably Tornado and Heat Wave.
Tornado risk in Lewisville, Texas
Lewisville is susceptible to severe thunderstorms capable of producing tornadoes. Weather patterns in this region can generate sudden rotational storms that give residents very little warning time compared to other hazards.
Lewisville Tornado Safety
- •Identify an interior room without windows on the lowest floor
- •Monitor NOAA weather radio during spring storm season
- •Clear yard of potential projectiles before storms arrive
Top Hazards for The Lewisville Area
Regional data for Texas suggests that the area is historically prone to periods of tornado. Consequently, the data-driven score of 99.8 underscores the need for preparedness. Local schools and businesses typically have robust protocols for these weather events.
In terms of regional hazard exposure in Texas, the proximity to specific terrain features amplifies the heat wave risk. It is important to note that this value of 98.5 serves as a benchmark for local insurance and safety planning. Keeping trees trimmed near power lines reduces the risk of prolonged outages.
Environmental studies focusing on Texas highlight that the area's infrastructure faces consistent tests from winter weather events. Additionally, federal hazard layers combined with local topography result in this 97.8 score. During these events, checking on elderly neighbors is a critical community responsibility.
Winter Grid Failure Guide
Lewisville has significant winter storm risk. Learn the thermodynamics of survival when the power goes out.
The Apartment Fortress
Living in Lewisville? Learn how to handle water storage, sanitation, and security in a small space.
How to Prepare in Lewisville
Read the Full Guide →Identify your safe room immediately. In Lewisville, severe storms can spin up quickly. You need a safe, windowless location and a way to receive alerts when the power grid fails.
Critical Action Checklist
- 1Prepare for secondary heat waves if power is lost.
- 2Secure outdoor furniture that could become projectiles.
- 3Keep a whistle in your kit to signal for help if trapped.
- 4Wear a helmet (bike or construction) to protect from debris.
- 5Have a weather radio with a battery backup to receive alerts.
Essential Gear for Lewisville
Water
Sawyer Products Mini Water Filtration System
Filters up to 100,000 gallons. Essential when tap water is compromised.
Power
Petzl Actik Core Headlamp
600 lumens and rechargeable. Hands-free lighting is critical during power outages.
Home
Gorilla Tape (Black)
Heavy-duty tape for emergency repairs, sealing windows, or medical improvisation.
The best insurance against Tornado is preparation. Check your kit and ensure you are ready.
View Complete Gear Checklist →Compare Nearby Cities
| City | Risk Score | Analysis |
|---|---|---|
| Houston | 100.0 | Houston and Lewisville share similar regional risks, but our data gives Lewisville the edge in overall safety. |
| Dallas | 98.7 | Choosing between Lewisville and Dallas? Lewisville presents a lower overall risk profile. |
| San Antonio | 97.5 | When compared to San Antonio, Lewisville is statistically safer. The difference of 0.1 points highlights local geological and meteorological variations. |
| Austin | 95.6 | Choosing between Lewisville and Austin? Lewisville presents a unique set of challenges. |
| Fort Worth | 98.3 | Fort Worth and Lewisville share similar regional risks, but our data gives Lewisville the edge in overall safety. |
Frequently Asked Questions
How common are Tornados in Lewisville?
With a risk score of 99.8 for Tornado, Lewisville is considered highly vulnerable. Residents should have a specific plan for Tornado events, which are the primary driver of the city's overall risk profile.
Is Lewisville safer than other cities in Texas?
It varies by hazard. While Lewisville has its own risk profile (Total Score: 97.5), it is among the higher-risk areas in Texas. See our state rankings for a direct comparison.
Should I move to Lewisville given the risk of Heat Wave?
Every city has risks. The threat of Heat Wave (Score: 98.5) is manageable with proper preparation. The local infrastructure in Lewisville is designed to handle this, but personal insurance and a 'go-bag' are recommended.
How does Lewisville compare to other cities in Texas?
See the full Texas Disaster Rankings to see how Lewisville stacks up against other cities in the state.