Record Temperature Drop in Browning, Montana - January 24, 1916
1916 · Browning, United States
In Browning, Montana, the temperature dropped from 44°F to -56°F in 24 hours, the greatest temperature drop ever recorded in the United States.
April 12, 1934
The strongest surface wind gust in the world at that time was measured at 231 mph at the Mount Washington Observatory.
Mount Washington, United States | Mount Washington Observatory
On April 12, 1934, a team of meteorologists at the Mount Washington Observatory in New Hampshire recorded what, at that time, was the strongest surface wind gust ever documented: 231 miles per hour (372 kilometers per hour). This extraordinary meteorological event occurred at an elevation of 6,288 feet (1,917 meters) above sea level, on one of the most notoriously windy and weather-volatile locations in the world.
Mount Washington, located in the Presidential Range of the White Mountains, is known for its severe weather conditions. The combination of its high elevation, latitude, and orientation makes it an ideal location for encountering violent weather. The Observatory was established in 1932 to conduct research under these extreme conditions, which helped contribute to this significant meteorological record.
On the day of the record, the mountain was under the influence of an intense low-pressure system combined with a strong jet stream. These factors created an environment where wind speeds were pushed to unprecedented extremes.
For many decades, this record was acknowledged as the highest natural surface wind speed ever directly observed by humans. The measurement was achieved using a heated anemometer, crucial for preventing the instruments from freezing in the harsh conditions.
This record stood unchallenged until 1996, when a higher wind gust of 253 mph was recorded in Australia during a tropical cyclone. Nevertheless, Mount Washington’s record retained its status for non-cyclonic wind activity.
The 1934 wind recording was a testament to the rigorous scientific practices of the Mount Washington Observatory team. It showcased the mountain as a critical research site for understanding atmospheric dynamics, including extreme weather phenomena. The data gathered continues to contribute to improved meteorological predictions and a better grasp of wind dynamics in mountainous terrains.
Mount Washington’s unique environment and historical records like the 231 mph wind gust remain integral to climbers, meteorologists, and historians, reflecting both the site’s natural wonders and its scientific value.
Source: www.mountwashington.org