<div>Eastern Pacific Hurricane Kenneth is at or just was at 145 mph sustained wind, a very strong cat. 4 hurricane on the Saffir-Simpson scale:</div>
<div><a href="http://www.nhc.noaa.gov/refresh/graphics_ep3+shtml/203638.shtml?5-daynl#contents">http://www.nhc.noaa.gov/refresh/graphics_ep3+shtml/203638.shtml?5-daynl#contents</a></div>
<div> </div>
<div>Note NOAA history of Eastern Pacific Nov. 21-30 tropical storms, with only two since 1949:</div>
<div><a href="http://www.nhc.noaa.gov/climo/#ori">http://www.nhc.noaa.gov/climo/#ori</a></div>
<div>-----------------------------------</div>
<div><a href="http://www.washingtonpost.com/blogs/capital-weather-gang/post/hurricane-kenneth-in-eastern-pacific-record-setting-category-4-storm/2011/11/22/gIQAgm11kN_blog.html">http://www.washingtonpost.com/blogs/capital-weather-gang/post/hurricane-kenneth-in-eastern-pacific-record-setting-category-4-storm/2011/11/22/gIQAgm11kN_blog.html</a></div>
<div> </div>
<div>
<div id="entryhead"><span class="timestamp">Posted at 10:19 AM ET, 11/22/2011</span>
<h1 class="entry-title">Hurricane Kenneth in eastern Pacific: record-setting category 4 storm</h1>
<div class="blog-byline">By <a href="http://www.washingtonpost.com/jason-samenow/2011/08/01/gIQAMnn9nI_page.html" rel="author"><font color="#0c4790">Jason Samenow</font></a></div></div></div>
<div> </div>
<div> </div>
<div>Hurricane season ends in just over a week, yet one of eastern Pacific’s most intense storms this year swirls over the open ocean. <a href="http://www.nhc.noaa.gov/refresh/graphics_ep3+shtml/084514.shtml?5-daynl#contents" target="_blank"><font color="#0c4790">Kenneth</font></a> strengthened to category 4 intensity this morning, becoming the strongest hurricane on record so late in the season in the eastern north Pacific.
<p>Positioned 750 miles south-southwest of the southern tip of Baja California, the storm’s maximum sustained winds are a remarkable 145 mph. The <a href="http://www.nhc.noaa.gov/text/refresh/MIATCDEP3+shtml/220844.shtml" target="_blank"><font color="#0c4790">National Hurricane Center says</font></a> Kenneth has likely peaked in intensity and predicts the storm to hold its own for another 12-24 hours before weakening and then dissipating. The storm is no threat to land areas. </p>
<p>Aside from Kenneth, only three known tropical cyclones have formed after November 18 in the eastern Pacific according to <a href="http://wunderground.com">wunderground.com</a>’s <a href="http://www.wunderground.com/blog/JeffMasters/show.html" target="_blank"><font color="#0c4790">Jeff Masters</font></a>.</p>
<p>-------------------------------------</p>
<p><a href="http://www.wunderground.com/blog/JeffMasters/show.html">http://www.wunderground.com/blog/JeffMasters/show.html</a></p>
<p>
<table class="full" cellspacing="0" cellpadding="0">
<tbody>
<tr>
<td class="full">
<h1><a href="http://www.wunderground.com/blog/JeffMasters/show.html"><font color="#46219a">Dr. Jeff Masters' WunderBlog</font></a></h1></td>
<td><font color="#46219a"></font></td></tr></tbody></table></p>
<div class="primeContent672 tm12">
<div class="titleThin brTop5"><a href="http://www.wunderground.com/blog/JeffMasters/comment.html?entrynum=1991">Category 4 Kenneth the strongest East Pacific late-season hurricane on record</a></div>
<div class="titleThin brTop5"> </div>
<div class="borderBox brBot5">
<div class="primeHeader">
<table class="full actionsBig" cellspacing="0" cellpadding="0">
<tbody>
<tr class="introRow">
<td class="full"><span class="nb">Posted by:</span> <a href="http://www.wunderground.com/about/jmasters.asp"><font color="#213f9a">JeffMasters</font></a><span class="nb">, 3:43 PM GMT on November 22, 2011</span></td>
<td class="pNum nobr">+<span id="entrynumplus_1991">14</span>
</td></tr></tbody></table></div>
<div class="primeHeader"> </div>
<div class="contentData">
<div class="blogEntry"><span id="entrytextsize" class="small"><a href="http://www.wunderground.com/tropical/tracking/ep201113.html" target="_blank"><font color="#213f9a">Hurricane Kenneth</font></a> has intensified into an impressive Category 4 storm with 145 mph winds in the Eastern Pacific. Kenneth is by far the strongest hurricane to appear so late in the season in the Eastern Pacific; the previous record was held by <a onclick="if(!checkUrl(this.href)) return false;" href="http://en.wikipedia.org/wiki/1983_Pacific_hurricane_season#Hurricane_Winnie" rel="nofollow" target="_blank"><font color="#213f9a">Hurricane Winnie of December 5, 1983</font></a>, a Category 1 storm with 90 mph winds. There has not been an Atlantic hurricane as strong as Kenneth this late in the season, either; the latest of the <a href="http://www.wunderground.com/hurricane/lateseason.asp" target="_blank"><font color="#213f9a">seven November major hurricanes in the Atlantic</font></a> was Hurricane Kate of November 21, 1985 (120 mph winds). Since 1949, here have been just three named storms that have formed in the Eastern Pacific after November 18. These three storms were an unnamed tropical storm on November 27, <a href="http://www.wunderground.com/hurricane/ep1951.asp" target="_blank"><font color="#213f9a">1951</font></a>; Tropical Storm Sharon on November 27, 1971; and Hurricane Winnie on December 5, <a href="http://www.wunderground.com/hurricane/ep1983.asp" target="_blank"><font color="#213f9a">1983.</font></a> <br>
<br>Kenneth is over 27°C waters and under light wind shear of 5 - 10 knots, so could conceivably intensify further. However, I expect the storm has peaked, since it's tough for a hurricane to get much stronger than Kenneth's current intensity with ocean temperatures so close to the 26.5°C hurricane formation threshold. <a onclick="if(!checkUrl(this.href)) return false;" href="http://www.ssd.noaa.gov/goes/flt/t6/flash-vis-s.html" rel="nofollow" target="_blank"><font color="#213f9a">Satellite loops</font></a> show an impressive storm with a large eye, good symmetry, and plenty of upper-level outflow. The relative lack of spiral bands and large, thick eyewall may qualify Kenneth to be a rare breed of hurricanes known as "annular". <a onclick="if(!checkUrl(this.href)) return false;" href="http://journals.ametsoc.org/doi/pdf/10.1175/2007WAF2007031.1" rel="nofollow" target="_blank"><font color="#213f9a">Annular hurricanes</font></a> are a subset of intense tropical cyclones that are significantly stronger, maintain their peak intensities longer, and weaken more slowly than average tropical cyclones. The latest <a onclick="if(!checkUrl(this.href)) return false;" href="ftp://ftp.tpc.ncep.noaa.gov/atcf/stext/11112212EP1311_ships.txt" rel="nofollow" target="_blank"><font color="#213f9a">SHIPS model output</font></a> indicates that Kenneth has passed the initial screening step to be considered an annular hurricane. Only 4% of all hurricanes are annular hurricanes.<br>
------------------------------------------</span></div>
<div class="blogEntry"><span class="small">Vision2020 Post: Ted Moffett</span></div></div></div></div></div>