CarlislePaWx

I know the feeling. Once again, my sister back in north-central NJ (near Morristown), hits the snow jackpot. Mt Holly has them picking up 5-9", the highest total anywhere in Mt. Holly's CWA. Meanwhile around here...the mixtures continue. Temp has risen a tad now up to 28.6 degrees with a dew point of 25 and a wet bulb of 27.3. That means there is still some room left to drop back again if I can get some heavy stuff going for a while. The latest update from CTP for the Carlisle area has the main part of this storm winding down in about 3 hours with very little additional the rest of the night.

Here in Carlisle, at 2:30pm, there continues to be a mix of very light freezing rain mixed with sleet. Every time the intensity picks up the precip quickly becomes mostly sleet. Temp currently is down to 28.4 degrees with a rising dew point now up to 22. Several hours ago the dew point was 15, so wet-bulbing definitely exerting its influence. The total liquid equivalent is estimated to be around 0.03" with a hint of glaze progressively appearing. Definitely anxious to see if the HRRR's predictions come true.

I'm pretty sure @WmsptWxwasn't talking about the cold air for tomorrow's storm. He was talking about the strength of the cold air coming in on Monday behind the arctic front. The intensity of the cold post-frontal has been progressively weakening over the last few days. I can see how you could easily confuse the reference between the cold of tomorrow's storm versus Monday's cold.

In Carlisle, around 10:15am, the temperature is 34.3 degrees. Overnight I recorded just a trace of snow. Mulchy areas were white, however most all other areas were wet. Clearly the "action" was east of here towards Lebanon and Lancaster counties. I'll be watching the models to see how the Friday storm develops. With freezing rain events I often stay below 32 while points east and south warm up sooner. It's hard to believe that just 24 hours ago my forecast high temp for Friday was 57 degrees. This morning my forecast now is for a high temp of 32 degrees on Friday with early snow eventually changing to freezing rain. Still too early for anything definitive on Friday. Again, an interesting point is the farther northeast you go from south central, the longer the precip remains snow because that area is closer to the cold air source.

Good morning from Carlisle, where it is white and very cold. Fresh snowfall (albeit very light) combined with no wind and clear skies provided ideal radiational cooling overnight which allowed my temperature to drop all the way down to +3.4 degrees F, the coldest of the season thus far. That inch of snow that fell yesterday afternoon was just enough to radiate down into the single digits. Having read through all the morning posts it looks like many of us dropped below 10 degrees overnight. And, my prediction from last night regarding THV came true. I said I thought York would drop to zero, and they did, hitting -1 F.

Amazing what just a 1" coating of fresh snow can do if the skies can clear with very little to no wind. At 12:30am I'm down to 11.1 degrees and continuing to drop. I think that anyone with several inches of solid snowpack will find their temps in the single digits come dawn. I'll bet THV makes it down to zero. Last week my coldest reading was +6.6 degrees F. I think that's breakable. We'll see... Also, I melted down my snowfall, however I missed probably half of the accumulation because I didn't have my gauge outside on my board. I recorded somewhere between 0.8" and 1.0" of snowfall, but all of that only melted down to 0.01" of liquid! So, if you want to go with 80 : 1 SLR, I guess we can...lol. There's no doubt this snow was high ratio, however, I think the highest ratio I've ever officially recorded was around 30:1.

Near 7:00pm the temp is holding near 21 degrees. The snow flurries/showers is still continuing. That makes 3 hours with it still snowing, just very light. My meltdown will be forethcoming.

At 5:20pm it continues to snow lightly, but no longer accumulating. Just mood flakes...except I can't see them anymore...lol. I measured 0.8" in total new snow. Temperature has leveled off at 19.8 degrees. I love how crystalline the new snow is when it falls at these cold temperatures. My flashlight was reflecting back from the snow. I'll go melt the snow down once it has 100% ended. Perhaps it will be upwards of 15:1? We'll see.

Beginning to lighten up, but 0.5" of new snow here. Temp 19.9 degrees. Glad it hit while still daylight.

At 4:23pm here in Carlisle it is unexpectedly snowing moderately and probably at a rate that exceeds anything I had 2 nights ago. It's beginning to approach heavy as the flake size is increasing. I've picked up 0.3" of snow already and my temperature has dropped from 23 down to 20.3 degrees. I love snow when temps are this cold or colder because it instantly sticks to everything. I haven't looked at radar yet to see how widespread this is, but it remains solidly dark off to my west. What a surprise.

Here in Carlisle, my low overnight was 15.3 degrees. The wind almost never stopped blowing which prevented some from plummeting courtesy of deeper snowpack. I was already down to 17 at 6:00pm yesterday and hung out there for hours. Under a thin, milky overcast with dim sunshine my temp has risen to 21.6. Stay warm out there. I'll be staying nice and toasty indoors all day...lol.

Good morning all! I just caught up from all the posts since 1:00am. I'm very happy for all of you that grossly overachieved. Other than @canderson(sorry), I ended up with the second lowest accumulation coming in at a whopping 1.0" with 0.5" before midnight and the 0.5" after midnight. That 1.0" melted down to 0.11", close to 10:1 for water equivalent. Even just 1.0" everywhere is enough to create a beautiful early winter scene. I should also say that nearly all of the snow fell with a temperature that was above 32.0...but just barely with most of it falling around 32.5 degrees. One nice thing about the wet snow (now frozen) is that it is preventing blowing snow, which prevents drifts on my driveway and sidewalks. The temp has been hanging out around 23 degrees, and I'm not expecting it to rise much at all with a very cold 504dm thickness sweeping on through the daytime this afternoon. If anything I would anticipate a slow drop during this afternoon. Enjoy your winter wonderlands all! Oh, I forgot to mention my seasonal snow total is now up to 3.8".

At midnight, here in Carlisle, it continues to snow lightly, but steadily. The temperature has hung out around 32.7 for most of the evening which is preventing the paved street and sidewalks from completely covering over. As of midnight I have recorded 0.5" of new snowfall. This also records a storm total of 0.5". I melted down the snowfall so far and have measured 0.08" of liquid as of midnight. The temp has dropped 0.5 degrees in the past 30 minutes and is now standing at 32.2 degrees F. Almost every model has given me between 1.5" and 2.0" of snowfall. The canadian has been the only model that has pushed the 2+" line off to my northwest. So, it will be interesting to see how things pan out in the morning. Getting a solid 2" would be great, but it's hard to complain over just 1.5" when this has been modeled for me for many runs now. Good luck to all. I hope those that got gipped out of our last storm can take home the prize.

Thank you for confirming what I was suspecting. For the past 30 minutes I've had a mix of light sleet and snow, but more sleet based on what it looks like on my mulch and pavers. Temp dropped from 34 down to 33.6. As far as I can tell I'm not seeing any evidence of rain...just all frozen.

Low of 6.6 degrees this morning. I was hoping to eek out a few hours of sunshine this morning to help recharge my Tempest, but promptly at 9:00am the overcast moved back in again. (My Tempest is 5 years old and the battery is going. It uses solar to recharge. Thankfully it's just a back-up for my main Ambient station.) Temp already back up to 17.6, but with the overcast the speed of any warm up will be muted.