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dendrite

Administrator / Meteorologist
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Everything posted by dendrite

  1. February rain brings March showers which brings April drizzle.
  2. Another widespread 10-20% RH day. MHT sporting the 13% right now with 44/-3.
  3. Yup. Love it all. I get the grass fed liver and bones/knuckles for making my own soup bone broth too. It makes the store broths taste like water.
  4. Yeah I have trouble looking at the battery houses. I see a lot of people adopting those mistreated chickens overseas. They look like a mess when they take them in, but after a few months all of their feathers grow back and they're happy birds again. This is how Brookford Farm does it. Chicken tractors that they continually move around with electric fences. Yeah, the occasional bird gets picked off by hawks, but they have pretty good lives otherwise. Plenty of grass and movement. Here's a pic I took from there in 2015.
  5. A bear already got ahold of my parents' feeders a couple weeks ago. I bring mine in every evening. I can't be luring bears with the chickens now.
  6. I buy a lot of my meat from local farms now. Humanely raised, pastured, and grass fed. It tastes a little gamier than the frankenmeat from the grocery stores, but I prefer it now. I don't mind paying a few extra bucks for it,For those in my area, Miles Smith Farm and Brookford Farm are two places to check out. Brookford has some meat, but is mostly raw dairy with some produce and Miles Smith specializes in grass fed beef and pork.
  7. Already a 50F range at 1st Lake...from -14F to 36F.
  8. We used to have a lot of turkeys. I haven't seen any at my place in the last couple of years. I wonder if the rooster has anything to do with it?
  9. It’s as if it’s evaporating as fast as it can melt. We’ll do it again tomorrow...maybe more 15-20% RH readings in the interior lower els.
  10. The pack here has been steadily melting/sublimating/evaporating away without many mud issues. We're down to 8" now, and we've only had 1.36" for March so far. These days with sun and RH's in the 10s and 20s help a lot.
  11. Struggling up to 33F. May have my last teens tonight.
  12. Where's he getting all of those METAR site numbers?
  13. Thought you were wxblue with that avatar.
  14. I probably should add that melting is a latent cooling process too. If you think of the stages of water as having increasing energy from solid to liquid to gas, anytime you go up a phase change to a higher energy state it requires taking the energy from the environment. So the snow needs heat energy to complete the phase change from solid to liquid. It takes that thermal energy from the air around it. Up in a cloud, if you have condensation (gas to a liquid droplet) or deposition (gas directly to an ice crystal) the H2O is "losing" heat to the environment. We talk about latent heating a lot with convection and hurricanes because of the massive amounts of condensation being produced by those types of systems. Deposition, Condensation, Freezing >>> Latent heating of the air Sublimation, Evaporation, Melting >>> Latent cooling of the air So in the case of a day like today, we have temps near 40F in much of NH with RH near 15%. So we're getting a little of all 3 latent cooling processes. IOW, not much loss in the heart of the pack, but probably a decent amount lost along exposed edges.
  15. Death Valley right there. Looks like they just seabreezed. 51/-5 to 43/22
  16. Evaporation and sublimation are cooling processes. Snow sublimates and water evaporates more quickly with lower relative humidities and wind. So one of two things happens during the day when it's something like 34/5. Some of the snow is melting due to adjacent warmer surfaces and that moisture will readily want to evaporate. The snow/ice not melting will be primed to sublimate as well if the temp is close to enough to freezing or lower. So any evaporation and/or sublimation will create latent cooling on the snow surface. The wetbulbs tell the story. That's the temp the air would have if it was completely saturated. In this case, the snow surface temp can approach the 2m wetbulb since the surface is continuously cooling due to the sublimation and evaporation. My wetbulb is 25F...not exactly conducive for big snow melt. Of course the sun is getting high enough to do damage on snow and ice adjacent to darker surfaces. So even with the low wetbulbs, snow banks go down pretty quickly. A leaf in the middle of the pack may sink down through it a few inches simply from heating up so much from the sun. Higher RH slows the evaporation rate. So those 53/53 airmasses we get in December annihilate the pack. At near 100% RH there's no evaporation to cool the snow surface to limit the melting. So with our wetbulb in the low 20s today the snow surface temp is probably leaning below freezing due to the melting/freezing processes. Also, at temps going above +4C, the water molecules start losing their hexagonal structure. So at wetbulbs around 39F the snow melt really starts to accelerate.
  17. Lisa has showed me a few of the trailers. Josh is a science guy, but he definitely has a flair for the dramatic too.
  18. The dews definitely give it an arctic feel versus a 34/25 type airmass. There's another push of CAA overnight so it should be quite the chilly evening once the sun goes down. This airmass flies out of here starting Wednesday though. 'Tis the season when the sun sets with -12C 850s and by sunrise 850s are near 0C and still climbing. You get a low in the teens with rad cooling and then mix out through the following afternoon and pull off a high near 60F.
  19. Didn't he move to Maine at one point?
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