Search results
Results from the WOW.Com Content Network
Severe weather can occur under a variety of situations, but three characteristics are generally needed: a temperature or moisture boundary, moisture, and (in the event of severe, precipitation-based events) instability in the atmosphere.
The categorical forecast in the Day 1-3 Convective Outlooks—which estimates a severe weather event occurring within 25 miles (40 km) of a point and derives the attendant risk areas from probability forecasts of tornadoes, damaging winds, and large hail on Days 1 and 2, and a combined severe weather risk on Day 3—specifies the level of ...
In weather forecasting in the United States, "particularly dangerous situation" (PDS) is enhanced wording used by the National Weather Service to convey special urgency in some watch or warning messages for unusually extreme and life-threatening severe weather events, above and beyond the average severity for the type of event. It is used in ...
Beyond more common weather terms lies a field of rarely used but humorous monikers to describe the weather around us. Some were just invented, some have been around for hundreds of years. Here are ...
Conditions are expected to improve this week after bad weather caused disruption during the Christmas getaway period. The Met Office has forecast a “grey Christmas” with some sunny spells and ...
A weather cancellation or delay is closure, cancellation, or delay of an institution, operation, or event as a result of inclement weather. Certain institutions, such as schools, are likely to close when bad weather, such as snow, flooding, air pollution , tropical cyclones , or extreme heat , causes power outages , or otherwise impedes public ...
“At a high altitude that is more forgiving. At a low altitude, that is very unforgiving. There’s no room to recover.” That’s part of why bad weather is especially difficult on airport ...
Also actiniform. Describing a collection of low-lying, radially structured clouds with distinct shapes (resembling leaves or wheels in satellite imagery), and typically organized in extensive mesoscale fields over marine environments. They are closely related to and sometimes considered a variant of stratocumulus clouds. actinometer A scientific instrument used to measure the heating power of ...