Marianne Martinez
Tracking hurricanes is crucial for minimizing their impact on communities, infrastructure, and business operations. Land-based weather radars can detect hurricanes within approximately 320 km or 200 miles off the coast, providing up-to-date data on rain intensity, tropical storm movement, wind speeds, and speed. This data, combined with information from satellites, IoT, and other sources, helps meteorologists predict hurricane tracks and intensity changes, issue warnings, and contribute to public safety.
| Characteristics | Values |
|---|---|
| Purpose | To collect data that helps protect lives and property |
| Data collected | Interior barometric pressure, wind speed, location of the strongest winds, cyclone movement, atmospheric rivers |
| Aircraft used | Lockheed WP-3D Orion, Gulfstream IV-SP (G-IV), P-3s, C-130 |
| Organisations | NOAA Hurricane Hunters, Air Force Reserve 53rd Weather Reconnaissance Squadron, NASA |
| Flight crew | Pilots, flight engineers, navigators, flight directors, data system operators, sonobuoy and dropsonde operators |
| Training | Commercial pilots are trained to avoid inclement weather, while hurricane hunters are trained to fly through storms |
| Flight duration | 8 hours |
| Flight preparation | 48 hours' notice, adjustment of crew work and sleep schedules |
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What You'll Learn
The history of using planes to track hurricanes
The use of planes to track hurricanes has been significant in improving forecasting and saving lives. The history of using planes for this purpose dates back to the early 20th century when technological advancements, such as the anemometer, improved hurricane tracking.
In 1943, during World War II, the first intentional meteorological flight into a hurricane occurred. Colonel Joe Duckworth, a lead instructor, flew a trainer aircraft straight into the eye of a hurricane near Galveston, Texas. This marked a turning point, as aircraft were now being used to gather data from within hurricanes. The term "hurricane hunters" was first used in 1946 to describe these daring missions.
In the 1940s and 1950s, the use of radar and aircraft to track hurricanes became more common. Hurricane King in 1949 was the first hurricane to be tracked by radar. During this time, the US Weather Bureau began sending aircraft into hurricanes to collect data on wind speed, pressure, and temperature, which improved forecasting models.
Captain Leonard Povey's historic flight in 1935 is another notable example. He flew over the Florida Keys and provided crucial information about a storm's location and direction, leading to timely warnings for the region. Despite these advancements, forecasting accuracy and evacuation challenges remained, as seen in the 1943 Surprise Hurricane that struck Houston, Texas.
In the 1960s, the introduction of weather satellites revolutionized hurricane tracking. Satellites provided valuable data on storm formation, movement, and intensity. This, combined with advancements in computer technology, enabled meteorologists to predict hurricane landings several days in advance with better precision.
Today, hurricane tracking has become a complex process that utilizes aircraft, radar, satellite data, and sophisticated computer models. The 53rd Weather Reconnaissance Squadron, based in Keesler Air Force Base in Biloxi, Mississippi, is the world's only operational military weather reconnaissance unit, continuing the legacy of "hurricane hunters" and pushing the boundaries of hurricane tracking and forecasting.
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The importance of data collected by planes
The data collected by these aircraft helps forecasters make more accurate predictions during a hurricane and helps researchers better understand storm processes, leading to improved forecast models. For instance, the Gulfstream IV-SP (G-IV) aircraft can fly at high altitudes and cover thousands of square miles surrounding a hurricane, gathering vital data with GPS dropwindsondes and tail Doppler radar. This data enables forecasters to map the steering currents that influence hurricane movement.
Another example of the importance of aircraft data is the use of dropsondes, which are dropped from aircraft to the sea surface to collect data on the storm and its surrounding environment. This information is embedded into weather models, improving forecast accuracy. Dropsondes can also be dropped from unmanned aerial drones, such as NASA's Global Hawk, which can stay in a storm longer than manned flights and collect data from a higher altitude.
The data collected by these planes and drones is crucial for protecting lives and property. It provides valuable information that cannot be obtained through satellite imaging alone, and it helps researchers better understand hurricane processes so they can more confidently model and predict future storms.
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Limitations of satellite technology
While satellite technology has undoubtedly improved hurricane tracking, there are some limitations and challenges. One key issue is the recent decision by the US Department of Defense to stop sharing satellite data with hurricane forecasters. This data has been crucial for monitoring storms in real-time and predicting rapid intensification, which can be extremely dangerous as it gives people less time to prepare and evacuate. With fewer satellites providing data, there will be bigger gaps in information, potentially leading to surprises when a hurricane suddenly strengthens.
Another limitation is that no single satellite is always pointed at a given storm. Hurricanes form and intensify rapidly, and to effectively track them, meteorologists need near real-time information from as many satellites as possible. This requires coordination and data sharing between different satellite operators, which may be challenging due to differing interests and priorities.
Furthermore, satellite technology alone may not be sufficient for accurate forecasting. Satellites provide valuable data on a hurricane's location, movement, and intensity, but other tools such as IoT devices, UAVs, and dropsondes are also necessary for gathering data from the ground and atmosphere. Satellites can also be affected by factors such as cloud cover, which can impact the accuracy of their measurements and images.
In addition, there are limitations to the type of data satellites can collect. For example, the microwave data collected by the Defense Meteorological Satellite Program provides unique insights into the three-dimensional structure of a storm and its overnight behaviour, which cannot be easily obtained from conventional satellites. The loss of such specialised datasets can impact the ability to accurately forecast rapid intensification and track changes in a hurricane's strength.
Finally, there are concerns about the security and longevity of satellite technology. The decision by the US Defense Department to stop sharing data was due to cybersecurity risks and the need to modernise their information technology infrastructure. Similar issues may affect other satellite programs, potentially leading to data loss or disruptions in the future.
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The risks of flying into hurricanes
Flying into a hurricane is not without its risks, but it is possible. In fact, it has been done since 1943, when a pilot trainer flew into a Category 1 hurricane near Galveston, Texas. Since then, aircraft have been used to track and gather data on hurricanes, with the term "`hurricane hunters`" being coined in 1946.
One of the main risks of flying into a hurricane is the potential for turbulence and bumpy rides. The strength of the storm and the flight path can determine the level of bumpiness experienced. It is recommended that seat belts be worn at all times when approaching a hurricane, as updrafts and downdrafts can occur, creating a roller coaster-like sensation. Additionally, the aircraft may experience extremely cold temperatures due to the heat released by the instrumentation.
Another risk is the potential for lightning strikes. While aircraft are designed to withstand lightning strikes and bad weather, it can still be dangerous. Modern aircraft are built to meet safety thresholds set by aviation authorities, making flying through thunderstorms generally safe. However, air traffic controllers will typically redirect aircraft above or around severe thunderstorms to avoid any potential damage or discomfort.
Flying into a hurricane also requires extensive preparation and training. Crews must be well-rested and adjusted to the launch schedule. Pilots undergo specific training to handle the unique challenges of flying into a hurricane, and all crew members must pass Federal Aviation Administration training and other tests. The flight crew is in constant communication with the Flight Director, who provides real-time flight guidance based on radar images.
Despite the risks, flying into hurricanes has important scientific and societal benefits. Aircraft are the only way to measure the interior barometric pressure of a hurricane and obtain accurate wind speed data, which are crucial for predicting hurricane development and movement. The data collected by "hurricane hunters" helps protect lives and property, improving forecasts and allowing meteorologists to better prepare communities in the path of a hurricane.
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The future of hurricane tracking
NOAA's Hurricane Analysis and Forecast System is set to undergo an upgrade, improving tracking and intensity forecasts. This will enable more accurate warnings and watches, giving communities more time to prepare for storms. NOAA's Climate Prediction Center's Global Tropical Hazards Outlook has also been extended from two to three weeks, providing more time for preparation and response.
The NOAA Hurricane Hunters are a crucial part of hurricane tracking. These specially trained pilots fly aircraft directly into the eye of the storm to collect data that helps protect lives and property. The data collected by these flights is essential for accurately predicting hurricane development and movement. The Hurricane Hunters use highly instrumented aircraft, such as the WP-3D Orion, to take measurements within tropical cyclones and winter storms.
In addition to NOAA's efforts, other organizations are also contributing to the advancement of hurricane tracking. The Government Flying Service of Hong Kong (GFS), in cooperation with the Hong Kong Observatory, conducts regular flight data collection and reconnaissance flights to capture weather data for tropical cyclones.
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Frequently asked questions
A hurricane is a tropical cyclone that forms over warm ocean waters due to specific atmospheric conditions. These include low vertical wind shear, high humidity in the mid-troposphere, and pre-existing weather disturbances. When ocean water temperatures reach at least 26.5°C (80°F), it rapidly evaporates, fuelling the formation of thunderstorms.
Weather radars are an essential tool for tracking and predicting hurricanes. Land-based weather radars can detect hurricanes when they are within approximately 325 km or 200 miles off the coast. These radars provide up-to-date data on rain intensity, tropical storm movement, wind speeds, and speed. Doppler radar, a type of weather radar, is particularly useful for detecting precipitation intensity, wind speeds, and storm structure.
Accurate and timely tracking of hurricanes is critical for protecting communities, infrastructure, and business operations. Weather radars, combined with other technologies, help meteorologists predict hurricane formation, paths, intensity changes, and issue early warnings. This information is vital for public safety and can contribute to disaster preparedness and response.
Yes, integrated technology and data from satellites, IoT, aircraft reconnaissance, and global forecasting models are combined with weather radar data to improve prediction accuracy. Additionally, hurricane trackers utilise satellite imagery and access to National Hurricane Center data for more comprehensive information.
