Sentences with phrase «in upper level winds»

Climatology was aware of this decades ago as it became aware of changing variability, especially of mid-latitude weather, with changes in upper level winds.

Not exact matches

Water vapor seen at these infrared wavelengths is in the upper and middle levels of the troposphere, where the winds are ruled by large - scale air masses.

The CTD sections show that the deeper layers are also warmer and slightly saltier and the observed sea level can be explained by steric expansion over the upper 2000 m. ENSO variability impacts on the northern part of the section, and a simple Sverdrup transport model shows how large - scale changes in the wind forcing, related to the Southern Annular Mode, may contribute to the deeper warming to the south.

These fast - moving bands of winds are found in the upper levels of the atmosphere and are created due to Earth's rotation, and its air being warmed up by solar radiation.

Light and variable upper - level winds in the vicinity of the storm are expected to remain light for the next few days, suggesting the system will meander in south Texas at least through Monday.

I made the connection, because some months ago, don't remember where, I read that strong «upper level winds» can actually, in some cases, intensify a thunderstorm, by increasing the strength of the updrafts within the cell.

Tornadoes require strong upper level winds, up to three miles above the ground, to contrast with slower currents near ground level in what's called wind shear.

Extreme cold in the descending center low pressure of the lobe with potentially extreme warmth on the ascending side of course, with the lobes guiding the upper level winds.

In recent days, this area of low pressure has actually sagged to the southwest, which in turn has turned upper level winds more northwesterly than westerly over MainIn recent days, this area of low pressure has actually sagged to the southwest, which in turn has turned upper level winds more northwesterly than westerly over Mainin turn has turned upper level winds more northwesterly than westerly over Maine.

However, it must be borne in mind that the MOC can also include shallower, wind - driven overturning cells such as occur in the upper ocean in the tropics and subtropics, in which warm (light) waters moving poleward are transformed to slightly denser waters and subducted equatorward at deeper levels.

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?

Two effects are identified that each contribute to a slower eastward progression of Rossby waves in the upper - level flow: 1) weakened zonal winds, and 2) increased wave amplitude.

As seen in the height / time plot shown above, these alternating winds first appear with a given sign at upper levels and then descend more or less regularly before stalling and decaying near the tropopause.