Sentences with phrase «weak wind shear»
«A very strong ridge of high pressure in the upper atmosphere has made for very weak wind shear from just east of the Caribbean islands all the way to the U.S..
https://www.scientificamerican.com/
«Typically, when you get very strong storms like Harvey, Maria and Irma, they form in the tropical Atlantic, the Gulf of Mexico or the Caribbean Sea in an area of weak wind shear» — conditions which crank out storms that are not fast - moving and stay together for longer periods of time — Bell explains.
Not exact matches
And it can make the Atlantic season weaker, in part because it can make wind shear stronger in the Atlantic, which can pull hurricanes apart when they are trying to form.
Because a monsoon brings southerly winds into China, a weaker summer monsoon would decrease the overall low tropospheric wind shear.
[8] In the north Atlantic and the northeastern Pacific oceans, tropical waves move along the axis of the ITCZ causing an increase in thunderstorm activity, and under weak vertical wind shear, these clusters of thunderstorms can become tropical cyclones.
In their Geophysical Research Letters publication the researchers also write that «aerosol invigoration effect occurs mainly in warmed - based convection with weak shear «-- as they could not find similar effects in frontal convection weather systems, which have higher wind shear and where air is forced up not by land surface warming, but by a pushing cold air wedge.
El Nino has been linked to strong winter storms that batter Southern California, to a weak hurricane season in the Atlantic as high - altitude winds shear the towering tops from developing tropical storms, to searing droughts in southern Asia like the one that spawned enormous rain forest fires in Indonesia in 1997.
back to the horizontal gradient, if the upper tropospheric thermal wind shear increase is greater than the decrease of the lower layer, then maybe the overall baroclinic instability would be stronger — but currently the upper level eddy circulations do not transport much heat poleward, so would the structure of cyclones change so that a deeper layer of air is involved in the thermal advection, compensating for a weaker temperature gradient?