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The ACE index for the 2009 Atlantic hurricane season was 53 units. [19] Due to the low number of storms in the season, many of which were short-lived, the overall ACE value was ranked as below-average. [20] Hurricane Bill was responsible for the ACE value for August being 30% above average. [21]
Global weather activity of 2009 profiles the major ... Station was officially opened on 30 November 2009. ... Saturday 19 December to Monday 21 December 2009. ...
8:00 a.m. AST (0000 UTC on August 21) – Hurricane Bill attains its secondary peak intensity with winds of 125 mph (200 km/h) and a minimum pressure of 943 mbar (hPa; 27.85 inHg), the lowest pressure recorded in any storm during the 2009 season. [5] August 21. 2:00 p.m. AST (1800 UTC) – Hurricane Bill weakens to a Category 2 hurricane. [5]
June 21–22, 2015 Severe Weather Event: June 21–22, 2015: Winds of 122 mph (196 km/h) recorded on personal weather station near Hayes, South Dakota before it was destroyed. [39] 2015 Midwest Derecho: July 12–13, 2015: A powerful derecho first formed in a cluster in Todd and Douglas Counties in Minnesota and then spread to the east and ...
Hurricane Andres was the first named storm and hurricane of the 2009 Pacific hurricane season. Forming on June 21, Andres gradually intensified as it tracked along the Mexican coastline. Deep convection developed around the center of circulation and by June
Tornadoes of 2010#May 18–21 – A high risk was issued at 1630Z on the second day of the aforementioned outbreak for a 30% probability of significant tornadoes. Overall, the event busted, only 13 weak tornadoes, seven of which were rated EF1, were confirmed in the area, although significant flooding occurred from the same storm system.
The decision to add an extra second to June 30 comes from the International Earth Rotation Service in Paris. The Earth's rotation is gradually slowing, so to sync up those atomic clocks most ...
The season officially started on Friday, May 15, 2009, in the East Pacific Ocean, and on Monday, June 1, 2009, in the Central Pacific; they both ended on Monday, November 30, 2009. These dates conventionally delimit the period of each year when most tropical cyclones form in the Eastern and Central Pacific basins. However, the formation of ...