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Storm Prediction Center Day 1 Outlook on November 17. Based on computer models, the Storm Prediction Center (SPC) began to assess the possibility of a widespread severe weather event for November 17 as early as November 12, though too much uncertainty existed at the time to delineate the probability and scale of the event. [7]
The 2013 Washington, Illinois, tornado was an unusually powerful and violent tornado that caused catastrophic damage to the city of Washington and several farmsteads in rural central Illinois during the early afternoon of November 17, 2013. The tornado resulted in three fatalities and injured 125 people.
Tornado outbreak of November 17, 2013 – The high risk was initially issued at 06Z for a 30% probability of significant tornadoes. This was an unusually far north tornado outbreak and one of only five high risk days during the month of November in recorded history (three since 2000). [ 283 ]
On April 17, a powerful upper-level low pressure system and associated warm front developed across the central United States. The Storm Prediction Center issued a moderate risk of severe weather for much of central Oklahoma, including a 15% hatched risk of tornadoes, some of which were predicted to be strong. [41]
An extremely critical fire weather event is the greatest threat level issued by the NWS Storm Prediction Center (SPC) for wildfire events in the United States. On the scale from one to three, an extremely critical is a level three; thus, these outlooks are issued only when forecasters at the SPC are confident of extremely dangerous wildfire ...
Convective mesoscale discussions are issued by the National Oceanic and Atmospheric Administration’s Storm Prediction Center based on the National Weather Center in Norman, Oklahoma. [ 1 ] [ 2 ] One type of mesoscale discussion is a meso-gamma mesoscale discussion , which are for tornadoes believed to be at least EF2 on the Enhanced Fujita ...
The Storm Prediction Center (SPC) is a US government agency that is part of the National Centers for Environmental Prediction (NCEP), operating under the control of the National Weather Service (NWS), [1] which in turn is part of the National Oceanic and Atmospheric Administration (NOAA) of the United States Department of Commerce (DoC).
Business and economy Sony announces they sold one million PlayStation 4 units in the first day. (Joystiq) Disasters and accidents Typhoon Haiyan: The number of people displaced reaches 1.9 million people. Numbers vary between 1,000-20,000 for estimates about missing people. (NPR) (Voice of America) Flooding in Vietnam has killed at least 28 people with nine more missing and nearly 80,000 ...