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Originally posted by riddle6
reply to post by MrWendal
From what I understand, the preliminary reports say it won't enter the Gulf of Mexico. That is what I was basing my post off of. Of course the storm can always can its direction, and it will be several days before it is anywhere near the US, but that doesn't mean I can't hope and dream a little.
Originally posted by Turq1
Wow, some members are really on top of things. Not even a hurricane yet and there's a thread about it, fantastic! I look forward to checking up on this storm multiple times a day to see how it changes.
Originally posted by MrWendal
Easy killers.. the thread title does say "possible"
Seriously, this storm the OP is linking was a tropical depression (technically) it is currently falling apart. 3 days ago it was much more formed up. I just did some more checking around and this depression has a 30% chance of reforming.
That being said, it is not expected to reform. The one to watch (if you really want to watch something) is what is right behind it. It is a large depression coming off the coast of Africa that also has a 30% to form... and it has a lot of ocean to do so.
Weather Underground Tracking
NOAA
The water temperature in the subtropical Atlantic Ocean has cooled down since 1998, oceanographers report. Measurements since 1957 had shown a rise of more than ¼ of a degree up to that point, but between 1998 and 2006 the ocean stopped warming and cooled by 0.15°C in the same area.
The measurements of sea temperature were carried out along the parallel 24.5 degrees of latitude north of the equator running from the African coast to the Caribbean by Spanish government oceanographers. The oceanographers used a network of "Argo" instrument buoys and survey vessels. The scientists describe the cooling as "unusual".
Scientists have looked at potential correlations between ocean temperatures and tropical cyclone trends worldwide over the past several decades. A 2005 study published in the journal Nature examined the duration and maximum wind speeds of each tropical cyclone that formed over the last 30 years and found that their destructive power has increased around 70 percent in both the Atlantic and Pacific Oceans.
Another 2005 study, published in the journal Science, revealed that the percentage of hurricanes classified as Category 4 or 5 (based on satellite data) has increased over the same period. The findings from both studies correlate with the rise in sea surface temperatures in regions where tropical cyclones typically originate.
Meteorologists use the term "tropical cyclone" for a closed atmospheric circulation that forms over a tropical or subtropical ocean. Once maximum sustained wind speed exceeds 74 miles per hour these storms are called hurricanes in the Atlantic Ocean, typhoons in the Pacific Ocean, and cyclones elsewhere.
Many factors influence tropical cyclone behavior, but three factors must be present for them to intensify: warm ocean temperatures (hurricanes can occur when surface ocean temperatures exceed about 79 degrees Fahrenheit (26 degrees Celsius)), low vertical wind shear (i.e., no strong change in wind speed or direction between two different altitudes), and high humidity. (3,4,5) As warm, moist air rises, it lowers air pressure at sea level and draws surrounding air inward and upward in a rotating pattern. As the water vapor-laden air spirals in and rises to higher altitudes, it cools and releases heat as it condenses to rain. This cycle of evaporation and condensation brings the ocean's heat energy into the vortex, powering the storm.
There are several natural factors that can "put the brakes on" a tropical cyclone: moving over colder ocean water; strong winds that churn up colder ocean water; high wind shear that can diminish or destroy the vortex; dry air migrating to the hurricane's core; and moving over land, which creates high frictional drag and deprives the storm of warm ocean "fuel." (3,4,5,6) But as long as conditions are favorable, the storm will thrive.
Originally posted by lisaloeb1214
I remember that the media made many statements in the spring saying this year would be a bad hurricane season. It was the reason they were trying to get everyone to have emergeny kits and plans in place. Hopefully everyone has these plans in place and no one get hurts. Does anyone remember where these articles were and how many hurricanes they expected this year?
Originally posted by radosta
Take it from someone who lives in Hurricane Central: this time of year LOTS of big storms form off Africa. Every year. This is actually a pretty slow year for storms. Irene was a light drizzle.
Originally posted by radosta
Take it from someone who lives in Hurricane Central: this time of year LOTS of big storms form off Africa. Every year. This is actually a pretty slow year for storms. Irene was a light drizzle.
Katia should continue to move west-northwestward to the south of the subtropical ridge for the next several days. Near the end of the forecast period...a weakness in the ridge produced by a trough over the western Atlantic is expected to induce a gradual turn to the right with a decrease in forward speed.