Atlantic low: the saga of invest areas

Here we have yet another example as to why you shouldn’t get excited much about invest areas.  At one point yesterday NHC gave the system a 90% chance of becoming a named storm in the next 5 days.  This morning?  Only 40%.  Here is the forecast model map as of 6am Tuesday:

And if you haven’t learned by now reading this blog, it’s also why you have to be careful with track models and not cherry-pick the scariest line.  Notice the lack of nice colored tracks?  That’s because the major models don’t spin it up and can’t track it very far.  Many of those gray curved longer lines are alternative scenarios where an artificial vortex was inserted into the model.  So the most likely scenario for this thing is that it will spread rain across the northern Islands, Puerto Rico, and Haiti, but not become an organized system.

Atlantic low, California Fires

The low pressure system NHC is watching continues to develop, and the odds of something spinning up later in the week (Tuesday -Thursday) are increasing.  Here is what it looks like as the sun rises on Monday morning (12 November) …

NHC now give it a 50% chance of formation in the next 48 hours (through Tuesday), and a 90% chance in the next 5 days, so they are increasingly sure it will do something later in the week.  The GFS lowtracker loses it, but the model has a low east of the Bahamas by Thursday, other models (such as the UK models) have it going into the Caribbean.  As usual, with a weak, non-system, just identifying a center, much less predicting where it will go, is difficult. We may have more later today, but check back late tomorrow or Wednesday for a better picture of what it will do.

The situation in California is much clearer, and pretty bad.  Weather the next few days is expected to be favorable for the fires to spread.  Using satellite data, it seems that impacts are on the order of $20 Billion dollars so far – in other words, comparable to the hurricanes this year (Florence and Michael).  Worse, there is over $100 Billion(!) of infrastructure within five  miles of the active fires, which are not as of yet contained (one big fire is only 15% contained).  So it may well get worse …

The Thing In the Atlantic …

A few folks have asked about the press reports talking up a potential late storm in the Atlantic.  NHC has an invest area flagged, with a zero percent (yes, zero, nada, nothing, нуль) chance of formation in the next two days.  Beyond that it might spin up.  Here’s the Haetta/TC impact map based on pretty much sheer speculation and fairy dust …

There isn’t much for the models to go on at this stage, so don’t take this seriously.  Check back in maybe Tuesday to see if this is a real thing or not.  In the meanwhile today (Sunday, 11 November) is Veterans Day in the US, and Armistice Day elsewhere.  It is worth pondering the events of 100 years ago, with the end of the First World War.  In many ways that war is still being fought in places like Israel/Palestine, Kurdistan, across the Middle East, and even Ukraine.  Wars rarely end – they just tend to produce sequels – so please take a moment to think about those who serve in them.

Mind the gap … and California Wildfires

Generally, if you don’t see something here, it’s because there is no significant doom out there, but the last month there have been several disasters  around the world (couple of earthquakes and typhoons) that while I’ve worked professionally, I haven’t been able to post about.  As long time followers know, sometimes I get overwhelmed with work, not to mention family/personal stuff that people have to deal with from time to time, and while I try to do updates here for global events sometimes I just can’t get to it.   Hopefully things will get back to normal soon, but no guarantees!

One of the research things I’m working on are economic risk assessments for wildland fires.  Hopefully will be able to post a bit more on this soon, but meanwhile here is some data from the NASA and NOAA polar orbiters showing where the fires are in Southern California.  Each little flame symbol represents a roughly 374 square meter (1230 foot on a side) square patch of land that the infrared sensor indicates is on fire …