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They are generally only issued on the day of the event. However, there have been two occurrences (April 7, 2006, and April 14, 2012) of a high risk being issued for Day 2 of the outlook period (with the event occurring the following day). Under the official protocol, a high risk cannot be issued for Day 3 of the outlook period. [2]
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 .
The nation’s next major storm system is set to sweep across the U.S. this week and bring the potential for a wide range of threats, including heavy snow, flash flooding and severe weather.
In National Weather Service (NWS) terminology, a Hazardous Weather Outlook is a weather statement issued to provide information of potential severe weather events within the next seven days. The outlook may include information about potential severe thunderstorms, heavy rain or flooding, winter weather, extremes temperatures. [1]
Flooding downpours will be a concern both within the severe weather risk areas as well as for locations farther north that were doused with 1-2 inches of rain last week.
TONIGHT: Increasing Clouds. Showers After 3:00 A.M. Low 55. Wind S 5 mph.SATURDAY: Showers & Storms Mainly Before 3:00 P.M. Some Could Be Severe. High 68 Wind SE 5-10 Becoming W Afternoon.
Areas are delineated in this forecast that have least a 15% or 30% chance of severe weather in the Day 4–8 period (equivalent to a slight risk and an enhanced risk, respectively); as forecaster confidence is not fully resolute on how severe weather will evolve more than three days out, the Day 4–8 outlook only outlines the areas in which ...
Millions in the South were under tornado watches on Saturday as an outbreak of severe weather hits the region just in time for post-holiday travel. Travelers beware: Severe weather forecast says ...