[FRIAM] The Dry line.

Mon Jun 10 14:18:47 EDT 2024

We have to stop meeting like this. 

This has to be the most comical cold front rendition I have ever seen.  "Hey, it must be in here some where so let's draw a straight line up the rockies".   The location of the dry line has become muddled.  Let's draw the 50 degree dewpoint  line on the nm state map.

note that when you do this, there is an alarming puddle of dry air in eastern new mexico.  Otherwise, dry line does seem mostly to be in western NM.  A look at the radar loop <https://radar.weather.gov/ridge/standard/SOUTHROCKIES_loop.gif?foo=0.277542547080605>  makes clear what is going on.  

Note the cyclonic curl over east central nm.  That is drawing in high dewpoint air from N and E  but dryer air from wsw.  This is a Teensy feature but the rest of your day’s weather will depend on whether it develop and where it moves.  

The water vapor loop <https://www.star.nesdis.noaa.gov/GOES/GOES16_sector_band.php?sector=sr&band=09&length=24>  makes a particularly dramatic presentation of it.  Clouds in green and white, unobstructed watervapor in yellow and blue. Note ctr of circulation E of ABQ.  Here is a still if you cant get the loop to work.

Let me know how it comes out. I think one thing that is generally true is that once you get water into the RG valley it tends to recirculate for a few days, and yet afternoon showers.  

N

n

On Sun, Jun 9, 2024 at 1:29 PM Nicholas Thompson <thompnickson2 at gmail.com <mailto:thompnickson2 at gmail.com> > wrote:

Rainy day in the mosquito infested swamp, first in two weeks.  A "back door front"  has pushed into New England from the NE, and we have actually turned the heat on.   Similarly, a back door front has pushed into NE NM, loosening the gradient of the dryline.  Summer cold fronts are ambiguous with respect to moisture, being moister than desert air but dryer  than  gulf air.  

Be sure to draw the 50 degree dewpoint contour.  It is pushing into the Northern RG valley.  

Note the flow of higher dewpoint air westward along I-40, coming into ABQ as an east canyon wind. 

The eye candy tells it all.  

Will there be clouds  in santa fe today?  This seems the classic monsoon situation.   I hope you can see this water vapor time lapse.  Really dramatic!

https://www.star.nesdis.noaa.gov/GOES/sector_band.php?sat=G16 <https://www.star.nesdis.noaa.gov/GOES/sector_band.php?sat=G16&sector=sr&band=09&length=24> &sector=sr&band=09&length=24

Low pressure cyclonic circulation over  Northern Mexico, most air streaming NW into New Mexico, being forced upward by the topography.  Now we have the added feature of the back door cold front.  Probably not the day to plan a fishing trip down stea of a burn scar.   

NWS ABQ is quite bullinsh about weather for today.  

Oh, and by the way:  heres the skewT for ABQ today, just in case anybody is curious.  I wish somebody wise would put me out of my misery and explain these things to me.    It does not look like a particularly rainish sounding to me, but WDIK.  Not much, that's for sure.  

Despite the hundreds of cards and letters I have received asking me to continue this service, I am probably going to run out

steam in the next few days, or so.  I hope to see this current event through. 

Nick 

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