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Hurricane Bertha category?

Hurricane Bertha category?
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AI Analysis

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4%
Top Probability
$0.00
Volume
5
Markets
1
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About This Event

Hurricane Bertha If Bertha reaches maximum sustained winds of greater than or equal to X mph according to the NOAA's National Hurricane Center, then the market resolves to Yes. Should the event occur prior to December 01, 2026, the market will expire at the first 10:00 AM ET following the occurrence of the event.

Current Market Outlook

Kalshi traders give Hurricane Bertha just a 4% chance of reaching Category 1 strength (winds of at least 74 mph) before December 2026. That is a near-zero probability in practical terms. The market sees this storm as very unlikely to develop into a named hurricane at all, let alone intensify to a Category 1. The low price reflects a consensus that Bertha will remain a weak tropical storm or dissipate entirely.

Key Factors Driving the Odds

The name "Bertha" has been used for Atlantic storms since 1996. Historical Berthas have been erratic. The 2020 Bertha made landfall in South Carolina as a tropical storm with 50 mph winds, barely a named system. The 2014 Bertha peaked as a Category 1 but stayed far out at sea. The 2008 Bertha became a Category 3 but was a long-lived Cape Verde storm that never threatened land.

The 4% probability signals that traders are pricing in the statistical rarity of any given Atlantic storm reaching hurricane intensity. The National Hurricane Center typically names about 14 storms per season, with roughly half becoming hurricanes. But Bertha is the second name on the list, and early-season storms (June-July) usually face cooler waters and higher wind shear that inhibit rapid intensification. The market is effectively betting on climatological base rates and seasonal timing.

What Could Change These Odds

If Bertha forms in the deep tropical Atlantic during August or September when sea surface temperatures are highest, the odds could spike quickly. The 2024 hurricane season saw record-warm Atlantic waters that fueled rapid intensification events. A similar pattern in 2025 or 2026 would put Bertha in the crosshairs of favorable conditions. The December 2026 expiration means traders have two full hurricane seasons to watch. A single favorable forecast from the NHC or the ECMWF model showing a developing system could push the price to 20-30% overnight. Conversely, if Bertha forms in June and hits cooler waters, the 4% price could drop to 1% or below.

AI-generated analysis based on market data. Not financial advice.

Overview

Hurricane Bertha is a name used for tropical cyclones in the Atlantic Ocean. The name is on the rotating list of Atlantic hurricane names maintained by the World Meteorological Organization. Several storms have been named Bertha since the 1950s, with varying intensities and impacts. The prediction market question asks about the maximum sustained wind speed of a future Hurricane Bertha, specifically whether it will reach or exceed a certain threshold (X mph) as determined by the National Hurricane Center. This type of market allows participants to bet on the strength of a named storm, reflecting uncertainty about seasonal hurricane activity and the specific characteristics of a storm that may form in a given year. The market resolves based on official NHC data, which is the authoritative source for hurricane intensity in the Atlantic basin. The question is tied to a specific deadline, December 1, 2026, which corresponds to the end of the 2026 Atlantic hurricane season. The market will expire at the first 10:00 AM ET after the event occurs if it happens before that date. The interest in this market stems from the broader public fascination with hurricanes, their destructive potential, and the growing field of prediction markets that aggregate information about future events. The outcome depends on atmospheric conditions, sea surface temperatures, and other factors that influence hurricane development and intensification. The market provides a way for people to express their views on the likelihood of a strong hurricane occurring in a given season, based on their analysis of climate data and seasonal forecasts.

Historical Context

The name Bertha has been used for 16 Atlantic tropical cyclones since 1957, making it one of the more frequently used names. The most notable Bertha was in 1996, which formed near the Cape Verde Islands on July 1 and became a Category 3 hurricane with maximum sustained winds of 120 mph (195 km/h). It caused 12 deaths and $335 million in damage (1996 USD) in the Caribbean and the United States. Another significant Bertha was in 2008, which formed off the coast of South Carolina on July 3 and made landfall near Charleston as a tropical storm. It caused $34 million in damage and one death. The 2014 Bertha was a Category 1 hurricane that formed near the Lesser Antilles on August 1 and reached peak winds of 90 mph (150 km/h). It caused minor damage in the Caribbean and later affected the United Kingdom as a post-tropical storm. In 2020, Bertha formed off the coast of South Carolina on May 27, just days before the official start of hurricane season. It made landfall near Charleston as a tropical storm with 50 mph (85 km/h) winds, causing flash flooding and power outages. The historical record shows that Bertha storms have occurred in both early and peak hurricane seasons, with varying intensities. The strongest Bertha was in 1996, a Category 3 storm. The Saffir-Simpson scale, used to classify hurricane intensity, was developed in 1971 by Herbert Saffir and Robert Simpson. The scale categorizes hurricanes from 1 (minimal damage) to 5 (catastrophic damage) based on maximum sustained wind speeds.

Why It Matters

The strength of a hurricane like Bertha directly affects the damage it can cause. A Category 3 hurricane (111-129 mph winds) can cause devastating damage, including destroyed homes and widespread power outages that can last weeks. A Category 1 hurricane (74-95 mph) might cause limited damage but still poses risks from flooding and wind. The difference in wind speed of 10-20 mph can mean the difference between a storm that causes minor inconvenience and one that destroys communities. The prediction market captures this uncertainty and allows people to express their views on the likelihood of a strong storm. The economic implications are significant. Hurricane damage in the United States averages $28 billion per year according to NOAA. A single strong hurricane can cause tens of billions in damage. The 2024 hurricane season, for example, saw Hurricane Helene cause over $78 billion in damage. The prediction market reflects expectations about seasonal conditions, such as sea surface temperatures in the Atlantic, which have been above average in recent years. Warmer waters provide more energy for hurricanes to intensify. The market also reflects broader climate trends. Climate change is expected to increase the frequency of high-intensity hurricanes (Category 3-5) according to the IPCC. The market provides a real-time indicator of how these trends and seasonal factors are expected to affect a specific storm.

Current Status

The prediction market is for a future Hurricane Bertha that could form in the 2026 Atlantic hurricane season. As of now, no storm has been named Bertha since 2020. The 2025 Atlantic hurricane season is ongoing, and the next Bertha will not occur until the 2026 season if the name is used. Seasonal forecasts for 2026 will be released starting in April 2026 by CSU and NOAA. The conditions that affect hurricane formation, such as sea surface temperatures and El Niño, are monitored by climate agencies. The market will resolve based on NHC data if a storm named Bertha reaches the specified wind speed before December 1, 2026.

Frequently Asked Questions

What is the Saffir-Simpson scale for hurricanes?

The Saffir-Simpson scale categorizes hurricanes from 1 to 5 based on maximum sustained wind speed. Category 1 has winds of 74-95 mph, Category 2 has 96-110 mph, Category 3 has 111-129 mph, Category 4 has 130-156 mph, and Category 5 has 157 mph or higher.

How does the NHC measure maximum sustained winds?

The NHC uses data from satellite imagery, reconnaissance aircraft (Hurricane Hunters), and weather buoys to estimate maximum sustained winds. The Hurricane Hunters fly into storms and drop dropsondes that measure wind speed, pressure, and humidity. The NHC also uses the Dvorak technique, which estimates intensity from satellite cloud patterns.

When is the Atlantic hurricane season?

The Atlantic hurricane season officially runs from June 1 to November 30. The peak of the season is usually from mid-August to late October, when sea surface temperatures are warmest and wind shear is low. Storms can form outside of this period but are rare.

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Updated Jul 28, 2026

Educational content is AI-generated and sourced from Wikipedia. It should not be considered financial advice.

Market Insights

Average Yes Price
1¢
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