Re hurricanes, there is reality and, then, there is the Wasington Post.



Preface:  before reading the excerpt from the Wa/Post,  keep in mind that we only had two devastating hurricanes,  this season,   and only one was of the  "rapid increase"   variety,  namely Michael.  Florence was a very typical but monster Cat Three storm.  What happened during the hurricane season (June through November)?   Nothing of a news worthy nature.  And now,  the season is nearly over.  Did you know that major storm violence has been on the decrease for the past 30 years?  Michael is very much the exception,  hardly a pattern event as is being suggested in the Post's article.  In fact,  in the 11 years since Katrina  (2005),   there have been only two Cat Three hurricanes in the Gulf.   Things are NOT getting worse.


Wa/Post :   The unforgettable thing about record-setting Hurricane Michael will always be how rapidly it became a near-Category 5 storm, perfectly timed for a sneak attack on the Florida Panhandle.
On Tuesday morning, Floridians knew a storm was coming but not how strong it would be. As of 5 a.m., Michael was a strong Category 1 hurricane with a minimum pressure of 973 millibars, a measure of atmospheric pressure indicating that air is rising in the storm, pulling winds toward its center. The official forecast took the storm up to mid-Category 3 at landfall.
Subscribe to the Post Most newsletter: Today’s most popular stories
on The Washington Post
But 24 hours later, Michael was already far stronger: It now had 140 mph winds and a pressure falling sharply. The wind speed increased 45 mph in just 24 hours, representing a leap from Category 1 to Category 4 — and the storm wasn’t done intensifying.
Pressure would ultimately fall to 919 millibars, one of the lowest measures of any hurricane at landfall in the United States — and the winds responded by increasing to 155 mph right as the storm struck the coast. This was a borderline Category 5 storm, and it’s clear that the only reason Michael didn’t quite cross that threshold was because it was crossing beaches by that time instead.
[Michael made history as one of the top four strongest hurricanes to strike the U.S.]
This process of “rapid intensification” — extremely dangerous near a coastline — is something we keep seeing lately. Technically, it is defined by the National Hurricane Center as an increase in wind speeds of 35 mph or more in 24 hours.

No comments:

Post a Comment