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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] Many Midwest cities (including Chicago, South Bend, and Fort Wayne) outside the climatologically most frequent High Risk locations experienced their second High Risk day of 2013.
Many of the most prolific severe weather days were high risk days. Such days are rare; a high risk is typically issued (at the most) only a few times each year (see List of Storm Prediction Center high risk days). High risk areas are usually surrounded by a larger moderate risk area, where uncertainty is greater or the threat is somewhat lower ...
In contrast with high risk outlooks for severe weather outbreaks, extremely critical outlooks are commonly issued for Day 2. This is due to the fact that the conditions required for volatile wildfire spread are easier to predict well in advance than the conditions required for a major tornado outbreak or derecho .
Since its initial usage in May 1999, the National Weather Service (NWS) in the United States has used the tornado emergency bulletin — a high-end classification of tornado warning — sent through either the issuance of a warning or via a "severe weather statement" that provides updated information on an ongoing warning—that is issued when a violent tornado (confirmed by radar or ground ...
California leaders have promised that the post-fire rebuilding process will be speedy. But experts say reconstructing damaged neighborhoods in their former image would put the residents at risk of ...
The first category adds more high-risk human pathogens to the regulated list, such as West Nile virus, as well as plant and animal pathogens that pose risks to livestock and crops. It also expands ...
List of Storm Prediction Center high risk days; U. UNESCO international days This page was last edited on 1 January 2022, at 22:47 (UTC). Text ...
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