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Early August Wx Discussion


Baroclinic Zone

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Dew point in 50's or is that error, actually several 50f dpoints w 9pm obs

A normal cycle for Dewpoints is to quickly rise near and just after sunset as the temp drops and you get condensation near ground level. As the dew forms, moisture condenses out of the atmosphere and dews lower...this allowing temps to lower. KTAN is doing this.

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A normal cycle for Dewpoints is to quickly rise near and just after sunset as the temp drops and you get condensation near ground level. As the dew forms, moisture condenses out of the atmosphere and dews lower...this allowing temps to lower. KTAN is doing this.

 

Is it a wetbulb type deal that happens around sunset each night?

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A normal cycle for Dewpoints is to quickly rise near and just after sunset as the temp drops and you get condensation near ground level. As the dew forms, moisture condenses out of the atmosphere and dews lower...this allowing temps to lower. KTAN is doing this.

 

Pawtucket is holding it's own at 55°.  BDR is 71°.... :lol:

 

58° here and falling steadily.

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A normal cycle for Dewpoints is to quickly rise near and just after sunset as the temp drops and you get condensation near ground level. As the dew forms, moisture condenses out of the atmosphere and dews lower...this allowing temps to lower. KTAN is doing this.

 

I'm wondering if the issue is deeper than that here.   Foliage is plush and evapotran is large, and you can really see that as the radiation started the DPs immediately jolted some 7 to 10F in some cases...or more.  Many sites in western Ma and Ct had 55 dp last hour!   I did discuss this potential earlier in the day...

 

Now, the temp could still find it's way down as condensation commences once the T and DP ...yadda yadda yadda as you know, which would make for a huge dew night as the two settle off together.   But I'm looking around and there still a bit of a gap even where the DP went up.   I'm thinking there's a small chance that MOS products bust a bit too cold do to these micro-climo issues.  It'll be interesting to monitor.   

 

Farther east the DPs are not as responsive so it may be more a coastal plain thing...which is harder to explain.  

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They're tricky. Sometimes they have some sneaky really cold nights, but usually they play 2nd fiddle.

I may go with HIE or BML for the NNE low tonight. SLK may battle some clouds toward midnight. MOS seems strangely warm for those N NH sites considering what it's spitting out at CON and the rad spots of SNE. GFL and 40B should be pretty cold too.

 

I would say second fiddle is a good way to describe LEB, they always seem to do the slow and steady well but not the big bottom out cold. IZG and especially SFM can really do a good sneaky radiational night too.

 

HIE 47, BML 45, SFM 46 at this hour. SFM is just in a pit. So much so it almost throws off our bias corrected grids for the entire area of York County.

 

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I would say second fiddle is a good way to describe LEB, they always seem to do the slow and steady well but not the big bottom out cold. IZG and especially SFM can really do a good sneaky radiational night too.

 

HIE 47, BML 45, SFM 46 at this hour. SFM is just in a pit. So much so it almost throws off our bias corrected grids for the entire area of York County.

 

 

What's the elevation of the office there? I'm on a hill at around 120' and the difference between my house and the bottom of the hill near 40' is noticeable.I love stuff like that.

 

BTW, some more nights like this will get the juices flowing regarding leaf change up there. :)

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What's the elevation of the office there? I'm on a hill at around 120' and the difference between my house and the bottom of the hill near 40' is noticeable.I love stuff like that.

 

BTW, some more nights like this will get the juices flowing regarding leaf change up there. :)

 

I think we're a weenie over 400 feet. It's definitely one of the highest points in the immediate area. The Royal River runs about a mile away from the WFO, and I can routinely do a 10 degree drop on the car thermometer when I leave the parking lot to the bottom of the river valley.

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I think we're a weenie over 400 feet. It's definitely one of the highest points in the immediate area. The Royal River runs about a mile away from the WFO, and I can routinely do a 10 degree drop on the car thermometer when I leave the parking lot to the bottom of the river valley.

 

One of those deals where you go downhill on a cool October morning and see frost on the roof of a house or grass while barely any dew on top of the hill.

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I think we're a weenie over 400 feet. It's definitely one of the highest points in the immediate area. The Royal River runs about a mile away from the WFO, and I can routinely do a 10 degree drop on the car thermometer when I leave the parking lot to the bottom of the river valley.

 

Do you get the reverse during the heat of the day?  I typically drop 7* from Greenfield to the Pit at peak heating.

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Best descriptor for yesterday was September. It felt like a mid September evening last night.....and despite my enjoyment of heat, I certainly appreciated how abjectly beautiful it was outside.

I'm thinking ginxys call this summer stands out as a true gem........seriously many doubted including me but this period has verified beautifully.

Now.....I note that the late next week trof that has looked looked quite robust in the euro/ensembles may be the nadir before climbing up to the next pattern shift which I believe is in full force by 8/25. In fact late next weeks trof may be over modeled and we're at the bottom now but that remains to be seen.

But as others have said, late August heat isn't the same. However, some of our stellar winters have featured late August heat almost into September. Will mentioned 2010. Don't forget the big heat at the end of August 1993.

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