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Commuters leaving Euston Station, 2 February 2009. A warm, moist Mediterranean cyclone began to move (unusually?) northwards over France, against a cold continental high pressure ridge, causing the cyclone to discharge its moisture as snow over large areas of western Europe. The system was vigorous enough to produce a winter-time tornado in ...
Early on February 10, 2009, a strong upper-level trough moved east from the Four Corners into the central and southern Great Plains by the afternoon and early evening hours. [2] Temperatures across Texas and Oklahoma were unusually low antecedent to a severe weather outbreak, generally ranging from 30 to 50 °F (−1 to 10 °C).
February 2023’s oddities included a rare New Jersey tornado on Feb. 21 (EF2 in Mercer County), and the most February tornadoes on record in Oklahoma (11), all of which happened on Feb. 26.
[9] [22] The tornado was the deadliest to strike Oklahoma since May 3, 1999, [27] and the strongest tornado in the state during the month of February since modern records began in 1950. The previous record was two F3 tornadoes that touched down on February 17, 1961. [9] An additional 46 people were injured.
Winter storms in the United States are usually most frequent in February, somewhat analogous to other seasonal peaks for hurricanes and tornadoes. Winter's last full month is often the most active ...
A high risk severe weather event is the greatest threat level issued by the Storm Prediction Center (SPC) for convective weather events in the United States. On the scale from one to five, a high risk is a level five; thus, high risks are issued only when forecasters at the SPC are confident of a major severe weather outbreak.
Every location east of the Rockies had temperatures that were below average in the first 25 days of the month, as the analysis below using data from NOAA's Climate Prediction Center shows.
On October 15, 2009, the National Oceanic and Atmospheric Administration's Climate Prediction Center issued its U.S. Winter Outlook. Due to a strengthening El Niño, winter weather was expected to be affected by this. Warmer-than-average temperatures were favored across much of the western and central U.S., especially in the north-central ...