Not a tropical cyclone?

By: Stu Ostro, 4:59 PM GMT on August 15, 2015

This isn't the first time I've written about this.  In fact, it's the fourth: 2009, 2011, 2013, and now again in 2015.

The latest episode(s) ...


On the morning of Monday, July 27, the more I looked at the thing that was in the northeastern Gulf of Mexico, the more it seemed the circulation was that of a low pressure system with tropical characteristics.  I was going to tweet that it was a "tropical low."


Updated: 3:01 AM GMT on August 18, 2015

Meteorological analysis of flight diverted by hail damage

By: Stu Ostro, 7:56 PM GMT on August 08, 2015

Thank goodness everyone was safe!

Source: Twitter, Beau Sorensen

Upon seeing the result of that flight from Boston to Salt Lake City which was diverted to Denver last night (Friday, August 7) because of hail damage, I investigated further, having been a meteorologist on many flights in which I thought, "They're going to fly through THAT??"  This case seemed different, in that Beau (tweet above) was quoted as referring to flying between...

Meteorological images of the year - 2014

By: Stu Ostro, 11:58 PM GMT on December 30, 2014

Previous years:


And now, my 9th annual edition of a selection of most compelling meteorological images of the year.  These can't capture every significant weather event or striking image, and by nature there is subjectivity involved, but they're meant to at least represent many of the highlights of the year based on the material I am aware of and the time I have available, via applying b...

Hurricane Tornado Volcano Blizzard Winter Weather Flood Drought Climate Change Photos

Updated: 3:47 PM GMT on December 31, 2014

Tropical Terminology

By: Stu Ostro, 1:47 AM GMT on June 30, 2014

With a system swirling offshore of the southeast U.S. and trying to become the first official numbered tropical depression or named tropical storm of the year in the Atlantic, even if it doesn't it reminds us that we're in hurricane season, and here is some basic, fundamental terminology related to tropical cyclones.

Rather than a comprehensive and/or technical glossary (there's one in that vein on the National Hurricane Center site), this represents the esse...


Updated: 2:52 AM GMT on June 30, 2014

Polar Vortex, Global Warming, and Cold Weather

By: Stu Ostro, 11:47 AM GMT on January 10, 2014

Image credit: Skreened

I just searched for "polar vortex" and got about 17,000,000 results.  Apparently the number doesn't display when specifying a date range; I wonder how many would have come up if I had searched a week ago!  And searching for "polar vortex" "global warming" gives 78,300,000.

Looking at those topics in relation to the recent cold weather over parts of the U.S. and Canada from an objective, scientific perspective ...

Winter Weather Climate Change

Updated: 3:53 AM GMT on February 25, 2014

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About stuostro

Proud to be a weather-obsessed weather geek! \m/ Senior meteorologist at The Weather Channel. If not a meteorologist, would be a DJ ♫

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