Hurricane Irene Adam Sobel, Suzana Camargo, Hui Shi, Columbia University Visual

Hurricane Irene Adam Sobel, Suzana Camargo, Hui Shi, Columbia University Visual www.phwiki.com

Hurricane Irene Adam Sobel, Suzana Camargo, Hui Shi, Columbia University Visual

Saar, Meghan, Managing Editor has reference to this Academic Journal, PHwiki organized this Journal Hurricane Irene Adam Sobel, Suzana Camargo, Hui Shi, Columbia University Visual summary of Irene’s track, intensity, size in addition to appearance Maximum wind, minimum pressure Satellite image when Irene was category 3 (near max intensity) Model as long as ecasts Different curves show results from different computer models. These as long as ecasts were made on August 24. The track was as long as ecast remarkably well; the intensity as long as ecasts tended to predict a stronger storm than actually occurred. Sea Surface Temperature A rule of thumb is that tropical cyclones need the SST to be at least 26C in order to as long as m, or to maintain their strength. Satellite image just after NYC l in addition to fall Irene had become quite Asymmetric (non-circular) but still had an eye, despite being only tropical storm strength at this point Radar image at NYC l in addition to fall Rainfall was focused on the north side as Irene Encountered a cold front over l in addition to on its northwest flank. Wind field A full barb is 10 knots, half a barb is 5 knots; add up the barbs to get the wind speed at any point. 1 knot is 1.15 mph. This wind field is an estimate based on satellite imagery, from when Irene was over the New Jersey coast. Rainfall The left plot is from satellite estimates (in mm), the right is from rain gauges (which is why it shows nothing over the ocean). Both represent total accumulated rain from Irene’s passage. Storm surge This plot shows the water level measured by the tide gauge at the Battery. The peak storm surge was about 4 feet above the normal tide. It happened to be a Spring Tide, higher than usual anyway. Flooding The most devastating flooding, particularly in upstate NY in addition to New Engl in addition to , was from rainfall. This image shows the sediment plume in the Hudson River in addition to NY harbor from all the flooded streams that drain into the Hudson. Have there been other storms like Irene Yes. Floyd (1999) had a very similar track to Irene’s, shown above right. The 1938 Hurricane’s track is shown above left. That one was different because it came directly from the ocean, not making l in addition to fall be as long as e reaching the NY area as Irene in addition to Floyd did. Because it moved fast, the 1938 storm was able to stay strong (category 3) as it came over the colder waters off Long Isl in addition to . Irene moved much more slowly. Because of its large size in addition to slow motion, it was clear early on that the danger in our area from Irene was rain in addition to storm surge. Rainfall from Floyd Compare to Irene, on the middle panel 1938 Hurricane Floyd (1999)-

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