| A polar jet stream appears to be the cause of the dismal weather, say the experts. |
| The first is the ridge of high pressure which exists between depressions moving from west to east steered by the upper-level jet stream. |
| As she increases her speed to 29 knots, the prop wash piles up astern into an arcing jet stream then fans out into a broad trailing wake. |
| One of the major reasons for the, often, very heavy showers and downpours that characterise April is the position of the jet stream. |
| The jet stream typically hovers above New England making the predominate wind a westerly one. |
| Previous studies have shown that during the solar maximum, the jet stream in the Northern Hemisphere moves northward. |
