113 mph Wind Speed

Wind Speed Conversions

The same wind expressed in common units:

The same conversion factor (1 mph = 1.609344 km/h) used in road-distance contexts applies here — see 113 mph to km/h for the dedicated walkthrough.

113 mph on the Saffir-Simpson Scale

The Saffir-Simpson Hurricane Wind Scale classifies hurricanes by sustained wind speed. The categories:

• Category 1: 74–95 mph. Damage to roofs, gutters, vinyl siding; possible power outages.
• Category 2: 96–110 mph. Major roof and siding damage; uprooted trees; near-total power loss.
• Category 3 (major): 111–129 mph. Devastating damage; well-built houses can suffer major roof damage; many trees uprooted; widespread power and water outages.
• Category 4 (major): 130–156 mph. Catastrophic damage; severe structural damage to homes; long power outages.
• Category 5 (major): 157+ mph. Catastrophic damage; total roof failure on many homes; areas uninhabitable for weeks or months.

113 mph sits firmly inside the Category 3 range. Hurricanes at this intensity are described as "major" — a US National Hurricane Center category that triggers higher-priority warnings and evacuations in coastal areas.

113 mph on the Beaufort Scale

The Beaufort scale, originally developed for naval observations, runs from 0 (calm) to 12 (hurricane force). Force 12 has no upper limit in the original scale — it covers all winds at or above 73 mph (≈ 33 m/s). 113 mph is therefore well into Force 12 territory.

Some agencies use an extended Beaufort scale (sometimes called "Saffir-Simpson-equivalent") with Force 13–17 to cover hurricane categories. Under that extension, 113 mph would be roughly Force 14 — though the original 0–12 scale is what most weather services use.

What 113 mph Wind Does

At 113 mph, sustained wind has substantial impacts on structures and the environment:

• Built environment. Well-constructed frame houses can suffer major damage to roof decking and gables. Older or poorly built structures may be destroyed. Mobile homes are typically destroyed or severely damaged. Windborne debris becomes a major hazard, often penetrating windows.
• Trees and vegetation. Many large trees are uprooted or snapped, especially trees with shallow roots or in saturated soil. Branches and debris cluster around obstacles.
• Power and infrastructure. Power and water outages are widespread and may last days to weeks. Communication infrastructure is often disrupted.
• People outside. Standing or walking is impossible without support. Risk of injury from flying debris is severe.
• Aircraft. Most commercial aircraft cannot take off or land in sustained 113 mph winds; airports close well before this threshold.

The effects depend not only on wind speed but on duration, gust factor, and whether storm surge or rainfall arrive simultaneously.

Wind Force and Pressure

Wind pressure on a flat surface increases with the square of wind speed. The simplified formula for pressure on a stationary object is roughly:

P = 0.00256 × V²

where P is pressure in pounds per square foot (psf) and V is wind speed in mph. For 113 mph:

• P = 0.00256 × 113² = 0.00256 × 12,769 ≈ 32.7 psf
• That is roughly 1,565 Pa or 1.57 kPa.

For comparison, 70 mph wind exerts only about 12.5 psf — less than 40% of the force at 113 mph. Doubling the wind speed roughly quadruples the pressure, which is why high-wind events damage structures so much more than moderate ones.

Notable Storms in the 113 mph Range

Many landfalling hurricanes have peaked at or near 113 mph at some point in their life cycle. Specific storms vary year by year, and conditions on the ground depend on local geography (coastline shape, elevation, surrounding terrain). Historical records of named tropical cyclones from the US National Hurricane Center, the Joint Typhoon Warning Center, and equivalent agencies in other basins are the authoritative source for any specific storm's wind speed at landfall.

Tornadoes also reach 113 mph easily — an EF1 tornado spans 86–110 mph and an EF2 spans 111–135 mph, so a 113 mph tornado would be at the bottom of the EF2 range.

Sustained Wind vs Gust

Hurricane categories use 1-minute sustained wind speed. "Gust" usually means a brief peak (3-second average). Gusts can be 20–40% higher than sustained wind:

• 113 mph sustained could include gusts of 135–155 mph.
• A weather report saying "gusts to 113 mph" implies a lower sustained speed (around 80–95 mph).

This is why two reports of "113 mph wind" can describe quite different storms. Always check whether the figure refers to sustained wind, gust, or peak gust.

Common Mistakes

• Comparing across measurement standards. Different countries use different sustained-wind averaging windows — 1 minute (US), 10 minutes (most of the world). A storm rated 113 mph by US standards may be reported lower by 10-minute averaging in international bulletins.
• Confusing sustained wind and peak gust. A peak gust of 113 mph does not mean the storm was a Category 3.
• Mistaking mph for knots. 113 knots is about 130 mph — a Category 4. Always check the unit on weather charts.
• Treating wind speed as the only damage indicator. Storm surge, rainfall, and duration also drive total damage, sometimes more than wind speed alone.

Quick-Reference Card

• 113 mph in km/h: ≈ 181.85
• 113 mph in m/s: ≈ 50.5
• 113 mph in knots: ≈ 98.2
• Saffir-Simpson category: 3 (major hurricane)
• Beaufort scale: Force 12 (hurricane force)
• Approximate wind pressure: ≈ 32.7 psf (1.57 kPa)
• Tornado equivalent: low EF2

For more 113-related speed and weather pages, see 113 mph to km/h, 113°F, and 113 mph in transport contexts.