Tornado Outbreak Sets New Record in North Dakota with 73 Tornadoes
A rare and intense weather phenomenon struck North Dakota over the weekend, leading to a record-breaking tornado outbreak. More than 20 tornadoes swept through South Dakota and North Dakota, resulting in a total of 73 tornadoes for the year, according to the National Weather Service. This figure surpasses the previous record of 61 tornadoes set in 1999 and far exceeds the annual average of 29 tornadoes since 1995.
The tornadoes initially formed in Mobridge, South Dakota, where they caused significant destruction. Vehicles were overturned and power lines were downed, impacting local residents. As the storm system moved northeast, it also affected the North Dakota capital, Bismarck, which experienced heavy rainfall. The city recorded over 50 mm of rain within a single hour, marking its wettest September in 31 years. Total rainfall for the month reached 61.9 mm, far exceeding the average of 43.7 mm.
Unusual Atmospheric Conditions Fuel Tornado Formation
Meteorologists attribute this extraordinary outbreak to a rare atmospheric setup. A low-pressure system, combined with low wind shear and a warm front, created optimal conditions for tornado development. As the day progressed, the tornadoes weakened, but the storm system continued to draw moisture and warmth from the North Pacific Ocean, which added extra energy to the atmosphere. This increased the likelihood of tornado formation across the Northern Plains.
In contrast, the Atlantic hurricane season has begun quietly, primarily due to dry air and strong wind shear. However, attention is now focused on Tropical Storm Gabrielle, located in the central Atlantic. The storm currently has sustained winds of up to 45 mph and is situated approximately 800 miles east of the Leeward Islands. Gabrielle is expected to track northwest towards Bermuda but poses no immediate threat while remaining over the ocean.
Despite this, there is considerable uncertainty regarding Gabrielle’s potential development and path. According to the U.S. National Oceanic and Atmospheric Administration (NOAA), conditions in the Atlantic are likely to become more conducive for tropical storms in the latter half of September. This trend mirrors last year’s patterns when late September and early October saw increased storm activity.
As recovery efforts commence in North Dakota and South Dakota, officials are urging residents to remain vigilant and prepared for any further severe weather. The recent tornado outbreak serves as a reminder of the power of nature and the importance of monitoring weather conditions closely.
