extreme weather

[nuren]

could someone explain what a triple point depression is and its effects

[Paul Sherman]

Hi Nuren and welcome to Net-Weather.

The Triple point is the Intersection point between 2 Boundaries, it could be dryline, outflow boundary, Cold Front etc. It is often a focus point for Severe Thunderstorm developments. The triple point may also refer to a point on the gust front of a Supercell Thunderstorm, where the warm moist inflow, the rain cooled outflow from the (FFD) Forward Flank Downdraught and the (RFD) Rear Flank Downdraught all intersect, this part of the Storm is a favoured part for Tornadogenesis or re-developements of Cyclic Tornadoes. Plain and simple it is a point where certain factors all intersect, more commonly found in the US During Spring/Summer.

Regards

Paul Sherman

[nuren]

could someone explain what a triple point depression is and its effects

thks paul just for info i was in a british airways helicopter between penzance and the isles of scilly and saw this condition developing

from flat calm to 60ft sea swell in approx 3 hours this was in the late seventies if my memory serves me i think it could have been

oct/nov

[shuggee]

And here's a great link nuren:

http://www.metoffice.gov.uk/education/seco...eathermaps.html

Just popping this over to the Learning Area