Hurricane Simon Track Shift: Mexico Close Pass?

Yes, forecast models have shifted Hurricane Simon’s projected track, and the current outlook favors a close pass off the coast of Mexico rather than a direct landfall. This means the storm is expected to remain offshore, but its proximity could still bring heavy rain, high surf, and strong winds to coastal areas. The exact distance of the pass and its impacts will depend on the storm’s intensity and the timing of its northward turn.

Formula

The calculator above converts the forecast distance and time into more familiar units. The distance in kilometers is converted to miles using the factor 1 km = 0.621371 miles. The time in hours is converted to days by dividing by 24. This helps you quickly understand the forecast bulletin.

Worked Example

Using the default values: if the closest approach is forecast to be 150 km offshore and that happens in 48 hours, then:

• Distance in miles: 150 × 0.621371 = 93.2 miles
• Time in days: 48 ÷ 24 = 2.0 days

So the storm’s center would be about 93 miles offshore in 2 days.

Background: What is Hurricane Simon?

Hurricane Simon is a tropical cyclone that formed in the Eastern Pacific Ocean. The Eastern Pacific hurricane season runs from May 15 to November 30, with peak activity typically from July through September. Storms in this region often move west-northwest, away from land, but some, like Simon, recurve toward the Mexican coast. The name “Simonâ€� is on the World Meteorological Organization’s rotating list of storm names for the Eastern Pacific.

How Forecast Tracks Are Made

Meteorologists use a variety of tools to predict a hurricane’s path:

• Satellite imagery – provides real-time position and cloud patterns.
• Aircraft reconnaissance – in some basins, planes fly into the storm to measure pressure, wind, and temperature.
• Computer models – several different models (e.g., GFS, ECMWF, HWRF) simulate the atmosphere and project the storm’s future track.
• Ensemble forecasts – run the model many times with slight variations to see the range of possible tracks.

Forecasters look at the consensus of these models and issue an official track, which is updated every 6 hours. The “cone of uncertaintyâ€� shows the likely range of the center’s path, but impacts can extend far beyond the cone.

Why a “Close Pass� Can Still Be Dangerous

A close pass means the center of the hurricane remains over water, but the storm’s effects are not limited to the center. Hurricane-force winds can extend outward from the eye by dozens of miles, and tropical-storm-force winds can reach much farther. The right side of the storm (relative to its motion) often has the strongest winds and storm surge. Even if the eye stays offshore, coastal areas can experience:

• Heavy rainfall (6-12 inches or more) leading to flash floods and mudslides.
• Large waves and dangerous rip currents.
• Coastal flooding from storm surge, especially if the storm is strong.
• Wind damage, particularly if the storm is a major hurricane (Category 3 or higher).

In 2014, Hurricane Simon was a Category 4 storm that stayed offshore but still caused flooding and damage in Mexico. That storm is a reminder that a close pass is not a “miss.�

How to Prepare for a Close Pass

If you live along the coast and a hurricane is forecast to pass near you, take these steps:

1. Monitor local weather alerts and evacuation orders from officials.
2. Prepare an emergency kit with water, non-perishable food, medications, flashlights, batteries, and important documents.
3. Secure loose outdoor items that could become projectiles in high winds.
4. Fill your car’s gas tank and have cash on hand in case ATMs are down.
5. Know your evacuation route if you live in a storm surge zone.
6. Stay indoors during the storm, away from windows.

Even if the storm stays offshore, power outages and flooding can occur. Do not let your guard down just because the center is over water.

Common Misconceptions About Hurricane Tracks

One common misconception is that the “cone of uncertaintyâ€� is the area that will be affected. In reality, the cone only represents the probable path of the center. Impacts like wind, rain, and storm surge can happen well outside the cone. Another misconception is that a Category 1 hurricane is not dangerous. A Category 1 storm can still cause significant damage and loss of life, especially if it is slow-moving or brings heavy rain. Finally, some people think that a storm’s intensity is directly related to its size – a small but intense hurricane can be just as dangerous as a large, weaker one.

Comparing a Close Pass vs. Direct Landfall

A direct landfall means the eye crosses the coastline. This typically brings the strongest winds and highest storm surge onshore. A close pass keeps the eye offshore, but the storm’s outer bands can still produce hurricane conditions. The severity depends on the storm’s intensity, forward speed, and angle of approach. For example, a fast-moving storm may bring less rainfall because it doesn’t linger, while a slow-moving storm can cause prolonged flooding even if it stays offshore. In general, a direct landfall is more dangerous, but a close pass should never be underestimated.

Safety and Evacuation Considerations

Local authorities will issue evacuation orders based on the storm’s track and intensity. If you are told to evacuate, do so promptly. If you stay, you may be on your own for several days if roads are flooded or blocked. For those who cannot evacuate, designate a safe room – an interior room without windows – and have a plan for communication. Remember that storm surge can occur many hours before the center arrives, so do not wait to see the storm before acting.

Frequently Asked Questions

What does “close pass� mean exactly?

It means the center of the hurricane is forecast to come within a certain distance of the coast, but not make landfall. The distance can vary – sometimes it’s 50 miles, sometimes 200 miles. The impacts depend on the storm’s size and intensity.

How often do hurricanes in the Eastern Pacific hit Mexico?

Many Eastern Pacific storms move away from land, but a significant number do affect Mexico, either as a direct hit or a close pass. On average, a few tropical cyclones impact Mexico each year, with Baja California and the mainland west coast being the most vulnerable.

Should I cancel my vacation if a hurricane is forecast to pass near?

It depends on your location and the forecast. If you are in the cone of uncertainty or under a warning, consider postponing. Check with your hotel and airline for cancellation policies. Even a close pass can cause airport closures and power outages, so it’s often safer to avoid the area during the storm.

What is the difference between a hurricane watch and a warning?

A hurricane watch means hurricane conditions are possible within 48 hours. A hurricane warning means hurricane conditions are expected within 36 hours. When a warning is issued, you should be in the final stages of preparation and be ready to evacuate if told to do so.

Can a hurricane change direction suddenly?

Yes, hurricanes can wobble or change track due to changes in steering winds. Forecasters use ensemble models to capture this uncertainty, but sudden shifts are still possible. That’s why you should always stay updated with the latest official forecast.

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in t | Time until closest approach | hours | 48 | 0 | 168
in d | Distance from coast at closest approach | km | 150 | 0 | 1000
out dist | Distance from coast (miles) | miles | d * 0.621371 | 1
out time | Time until closest approach (days) | days | t / 24 | 1