Table of Contents
Is there a warning for derecho?
The National Weather Service does not issue “derecho warnings” as by their definition derechos are wind events produce by severe thunderstorms.
What time of year do derechos occur?
70% of all derechos occur between the months of May-August (the warm season). The other 30% occur during the cool season. Photo taken by Doug Berry of the very impressive shelf cloud on the leading edge of the “People Chaser” Derecho of May 27, 2001 near Fort Supply, Oklahoma.
Where is a derecho most likely to happen?
During the cool season (September through April), derechos are relatively infrequent but are most likely to occur from east Texas into the southeastern states.
What will be the 2020 derecho weather like?
National Oceanic and Atmospheric Administration climatologist Adam Smith described a 2020 derecho to CNN Weather as an inland-hurricane, with winds reports in excess of 100 mph and hurricane-force winds lasting for up to 45 minutes. The severe threat will start in eastern Minnesota in the afternoon, pushing through Wisconsin in the evening hours.
What is a Derechos?
Derechos are extremely costly and dangerous wind events. They are defined as widespread and long-lived wind events that cause damage like a tornado but in a single direction. Damage caused by derechos is frequently referred to as straight-line wind damage.
What is a derecho and how dangerous is it?
A destructive damaging-wind event known as a derecho is bringing over 90 mph winds to the northern Plains Tuesday afternoon and is forecast to move east bringing severe thunderstorms. Winds over 90 mph already reported in South Dakota including 96 mph in Huron.
What is a derecho storm?
To be called a derecho, severe storms must have winds in excess of 58 mph and cause damage spanning at least 250 miles. The resulting conditions can be described as a tropical storm over land.