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Junorch obs and discussion 2026


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Just shy of 90 today (89) but once again, that humidity is something else. I think it’s partly because I’m not fully acclimated to it and the lack of wind from any direction today on top. Even this old dew sponge has its physical limits on days like this!

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IMG_0619.thumb.jpeg.9628711aa10281e2dd58ed5627e73308.jpeg

Looking at the sky, you wouldn’t think it’s about to rain.

Setting sun, behind the clouds, in the west, brightens them up from underneath the deck.

Only happens this time of year here.

And this time of day.

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35 minutes ago, JACKASS said:

IMG_0619.thumb.jpeg.9628711aa10281e2dd58ed5627e73308.jpeg

Looking at the sky, you wouldn’t think it’s about to rain.

Setting sun, behind the clouds, in the west, brightens them up from underneath the deck.

Only happens this time of year here.

And this time of day.

Love the long, slow sunsets this time of year along with the seemingly endless twilight we get into the evenings. It’s easily one of the best parts of the season imo.

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44 minutes ago, JACKASS said:

IMG_0619.thumb.jpeg.9628711aa10281e2dd58ed5627e73308.jpeg

Looking at the sky, you wouldn’t think it’s about to rain.

Setting sun, behind the clouds, in the west, brightens them up from underneath the deck.

Only happens this time of year here.

And this time of day.

Got to love the long light. Left the GFs house in Boston this morning at 4: 00am. Hardly even dark with the extended dawn and early sunrise.

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24 minutes ago, weatherwiz said:

Ended up going north and catching 84 in Newtown and following storms along 84 into Waterbury. Wind wasn’t much but some lightning, a few loud booms, and very heavy rain.  

Give you props for trying. Sorry it was disappointing.

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15 minutes ago, kdxken said:

Give you props for trying. Sorry it was disappointing.

Actually it worked out well! Wasn't really expecting anything wild or out of the ordinary. Part of the fun on this is picking a location and then adjusting as needed. Because of the road network here and limited visibility with trees and hills, our preference is to always be at a spot well ahead of the storms, particularly for shelf cloud views. 

I tend to prefer not chasing the storms as they're ongoing (unless its being out ahead of them) because I don't want to risk encountering a flooded road or something like a tree falling if driving along roads which are heavily forested. 

I'd say today worked out as could have expected. Big winds or even hail is just an added bonus.

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13 hours ago, TheClimateChanger said:

This is what IEM has for mean hourly dewpoint in the summertime for BOS.

network:MA_ASOS::station:BOS::season:sum

A couple things to note.  The readings were taken in the city before Logan was built, so that's one factor.  Prior to 1980, the temps were taken tucked back a bit near the WSFO, and since, the sensors have been located in the middle of the runways solidly surrounded 3 sides by water.  This is going to result in upward trend in dews long-term.

Another factor, going to from glass to digital thermometers.  Digital can record instantaneous quick temp/dew changes.  ASOS is supposed to do 5-min avg to mitigate this.  It is known that digital temps run a bit warm compared to glass thermometers overall.  Not sure about dews, but it is something to consider.

ASOS is considered accurate as long as the temp sensor is within +- 2 F.  Not sure about its dew sensors, but yet another thing to consider.  A margin of error here would suggest that the approx 1 F dew rise since 1995 when the ASOS was installed at BOS can not be considered statistically significant.

How does the increasing heat island effect over time impact BOS dews?

As you can see, there are a number of non-meteorological factors that have zero to do w/ climate or its changes that can and do give false trends either way.  You can't just simply take climate records over long period of time at face value due to factors mentioned above.  So I would use caution w/ small trends over many decades and longer.
 

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6 hours ago, HIPPYVALLEY said:

Fak’ will it ever rain again?

So I did a little easy "experiment."  Using CoCoRaHS sites, I got Y-T-D totals for the 3 sites closest to Logan.  Chelsea, Somerville, and Nahant.

Chelsea - 15.26"
Somerville - 12.72"
Nahant - 12.55"

And BOS? 10.79"

Again, taking climate information at face value has its issues.  The excuse here?  "Oh, we have to use it b/c it is official!"  So?  Just b/c it is official does not mean it is correct/right.  That's the appeal to authority logical fallacy.  Equipment/standards/practices are not perfect, so calling such out is not wrong.

 

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