CarlislePaWx

The bottom has literally dropped out from the outdoor temp. At 7:00pm I was 9 degrees. Now, one hour later I'm down to +4.3 F. That's nearly 5 degrees in just one hour. Looking to drop below this morning's low of -3.6 F. At the rate it's currently dropping I may be down to zero before midnight.

Incredible lows scattered around up in the Blain (Perry County) area (and others but these stood out on Wundermap) with readings of -14 to -17 around 7:00am. This was my coldest low temperature since Jan 2018 where I got to -2. I dropped to -3.6 F degrees around 7:00am. I was already down to -2 at 3:00am and then it began fluctuating up and down several degrees either side of zero. I have a second backup sensor located about 20 feet away from my primary station and it dropped to -4.7 F. Officially I go with my main station data regardless. The -4.7 was only 1.1 degrees colder than my official -3.6 F, so it's not that big of a deal. I'm surprised to see clouds early on. That would have interfered with the lowest temperatures. Will we be able to do it again tonight or will there be winds?

Hi Guys. Sorry, I forgot to enter my readings from yesterday's (Sunday's) snowfall. I had multiple measurements between 3.6" and 4.0". The snow melted down to 0.27". If I go with 4.0" and a melted amount of 0.27", that produces an SLR of 14.8 : 1. I'm afraid my board suffered from compaction despite being in the shade the entire day and temps in the upper teens. The total snowfall may very well have been 5" or even a bit more. My measurement, taken almost 24 hours after the end of the accumulating, definitely compacted, but I can't tell precisely how much compaction. Nice to see many surrounding stations reporting temps in the single digits, with even a few below zero already (as of 12:45am), such as York reading -9 F. Winds have barely played a factor so far with nothing more than occasional speeds of 2 to 4 mph. I'm currently down to +5.2 degrees F. My NWS forecast low is minus 1. I'm pretty sure I'm headed down to zero or below over the next 7 hours. I'll be back in the morning with my low temp.

Down to 6.6F for my low (remotely accessed). Currently up to 7.7 F. Temps are all over the place around here. I seem to be amongst the coldest. Many readings in the teens. The winds haven't arrived yet, or I would never have dropped as low. Talk to you all later when I'm back from DC.

There were no reports from me today because I was in Vermont over the weekend for a wedding of one of my nephews. Grafton was the small town. It was beautiful seeing all the frozen creeks covered in snow. It's been so long since I've seen frozen rivers, etc. Because I knew the storm was coming I was able to come back from BOS on an earlier flight that got into DCA at 3.45. Very lucky because it was still raining there as we landed, however, 15 minutes later the change over to snow hit and the snow intensity shot up so quickly. It was so heavy I couldn't find my car in the extended parking area. Easily 2"+/hr rates for a time. I'm staying over with my son in DC and will be driving back to Carlisle tomorrow morning. Based on my front doorbell camera I can estimate that at least 6" fell at my house. My snowboard should have a pretty accurate total waiting for me to measure. The intense rates didn't last all that long in DC, but I was watching a few of those intense bands on radar that passed through Carlisle. Sorry I missed that excitement. I'm thrilled for everyone else that ended up with more than expected. I'm looking forward to dropping below zero on Wednesday and Thursday mornings. A six-inch snowpack will do wonders combining with radiational cooling. That coldest temp I have ever recorded in the 24 years I've lived in the Carlisle area is -5 F, which occurred twice at two different homes. The first time was right after PD II in 2003, and the second time was after the 40" of snow I received during the first week of February of 2010. I'll be back with my update tomorrow (Monday) afternoon.

Going back to today's 6Z GFS, I'm surprised there's been virtually no comments about the upcoming cold wave following just behind whatever storm hits our region Sunday afternoon and evening. The GFS takes our 500mb thickness down to below 500 decameters by Tuesday morning, bottoming out around 494 dm and then holding near 500 until early Wednesday morning. When you combine 850 temperatures of -20 to -25 C with thicknesses below 500dm you have high temperatures no higher than the low teens or even below 10 above, with lows of zero to 5 below F, not taking into account any possible wind and wind chill. The other wild thing is the Miller A later in the week bombs out, especially when reaching our latitude and on up to north of Maine. It takes a 996 low and bombs it down to an unbelievable 947mb! That's 15mb lower than the superstorm of '93. The next 2 weeks look like they're going to be wild.

HI guys. I'm back with the melt down of the 0.9" of snow that fell overnight. It melted down to 0.05". This produced an SLR of 18:1. Looks like nothing more on the horizon for the next 7 days in the precip department. However, plenty of below normal temps preceded by a 2-day "thaw?" with highs in the 30's to near 40.

Here in Carlisle, overnight I recorded 0.9" of new snow. (I'll have the meltdown shortly). Back on Monday (1/6) I recorded 3.0" which melted down to 0.22". That produced an SLR of 13.6 : 1. Looks beautiful out there again for the second time in only 5 days. Today marks the 5th consecutive day with more than 1" on the ground.

Here in Carlisle, earlier today when the snow stopped I measured a storm total of 2.3". It remained that way until 2 hours ago when the expected second round began. Flakes were better/larger than anything that fell this morning. It was heavy for a short period of time and then settled back down to light. It's still snowing lightly at the moment with a temperature of 25.9 degrees after a high temp of 28.8 degrees. The second round deposited an additional 0.7" which brought the revised storm total to 3.0". Unless something unexpected happens it looks like accumulating snow is done here. I'll melt the snow down later this evening and post it when I have it.

Here in Carlisle at 10:00, the temperature is 23.4 degrees with a dew point of 20.8 degrees and a wet bulb of 22.6 degrees. Nearly the entire previous hour the snow fell very lightly with fine flakes. During the past hour I measured an additional 0.1" of snow with a storm total of 2.1". As I am typing this the rate has picked back up again and the flake size has increased nicely. I'd estimate the rate to be 0.2" to 0.3" per hour.

It just occurred to me that if the snow is fine enough the radar doesn't pick it up at all. So, maybe the big "nothing" is really some snow falling.

I just took a look at the radar and saw two things: there's a huge gap of nothing about to reach my area; easily the northern third up by Williamsport is getting the goods. Incredible! Anyway, like so many of you in the last hour I also measured exactly 2.0" on the board. Also, no grass is visible, so that's a win. Rates have dropped off to just a light, very fine snow that maybe accumulates 0.1" per hour (lol). Temp is 22.8 degrees. I love snow when it's well below freezing. I'm wondering if the passage of the 500 later today will give us another burst?

My point & click is showing what it showed last night which is 1" overnight Sunday into Monday followed by another 2-4 inches during Monday. That absolutely warrants a WWA. A total of 3-5" is not far away from a WSW as 5" is enough for WSW. Currently 28 degrees with a biting wind and wind chills down in the upper teens. Good portion of yesterday's snowfall still is on the ground in my backyard, which remains in the shade a good chunk of the day.

At 2:30pm here in Carlisle, the snow that had been falling moderately has temporarily ended for the 2nd time. At the time of heaviest rates my temperature dropped to 29.8 (not bad for my earlier prediction of 30.0) During the past hour accumulations began in earnest on sidewalks and my snowboard. Officially I have now recorded 0.3" of snow. It was melting on the board for a good chunk of the first several hours. Where it never melted was on my grass which currently has 0.7". I like the look of the grass, however, I have to go with my "official" board measurement. With the snow temporarily having stopped my temperature has risen to 30.6 degrees. The sun's position in the sky has dropped sufficiently as to no longer be a factor in anything melting (like my sidewalks). It still looks like the best may be yet to come beginning between 4 and 5 pm. We'll see.

I'm down to 30.2.

Here in Carlisle at 12:00 noon, accumulating snow continues as intensity slowly ramps up, almost approaching moderate. I don't quite have 0.1" on my board, but very soon. Grass, mulch, etc all turning white. This intensity has indeed caused my temperature to continue to drop, now down to 30.7 degrees. Several of the models that called for nothing in my area have now busted...lol.

Solid, accumulating light snow is now picking up. Whitening everywhere. Temp down to 31.5.

Here in Carlisle at 11:24am a steady, very light snow has begun. Temp currently 32.2 after a low of 23.9. Dew point 22.1 and wet bulb 28.8. If it picks up in earnest that's an easy drop to 30 degrees.

Here's tomorrow afternoon's non-event. There is almost nothing that needs subtracting from the Sun/Mon storm. The only precip falls between 1pm and 4pm.

Here in Carlisle, my total precipitation for the year 2024 came out to 48.23". Believe it or not, I finished the year with a surplus of only 0.20" above the normal annual average of 48.03". It was a topsy-turvy year month-to-month, especially the period from July through October. I measured just 1.43" in July (2nd driest month), followed immediately the next month of August with 10.69". (I think the last time I had a 10"+ month was September, 2018). September totaled 3.24" (-1.45" departure), followed by October, the driest month I have ever recorded at any of my previous locations, with a paltry 0.42". In the end it all averaged out to close to normal for the year. The annual departure of +0.20" was only +0.4% of the normal 48.03". An incredible year!

At noon, here in Carlisle it continues to be overcast. The sun has not been out since Friday. Yesterday I recorded 0.20" of precip; 0.19" during the overnight going into yesterday, then only another 0.01" yesterday evening. During the overnight (today 12/29) I recorded an additional 0.05" for a 2-day storm total of 0.25". The current temperature has risen to 55.6 degrees. The pressure is falling rapidly, down to 29.90" So much for the 1.5"+ previously forecast.

That snow map is showing the cumulative total for the entire run, between now and 7am January 13th. It's a beaut, that's for sure.

Here in Carlisle I recorded a low temperature of 7.2 degrees, which was only 1 degree below the forecast temp of 8. The last coldest temperature recorded here was +2.6 degrees, 2 years ago almost to the day, on 12/24/22.

Here in Carlisle at 11:32pm the skies are clear and the winds are calm. Radiational cooling is doing its thing even though there is no snow cover. The temperature is 10.9 degrees F. This is the coldest temperature of the season so far. My forecast low is 8, which seems very doable with nearly 8 hours of darkness remaining. The previous low of the season was 13.6 degrees which was recorded on December 1st.

Here in Carlisle, shortly before 1:30pm, it continues to snow lightly as it has been for the past 3 hours. The temperature has varied between 31.8 and 32.2. It's 32.0 right now. There's been some light melting on my board so it's difficult to be totally certain of the measurement. However, my best estimate is between 0.2" and 0.3". It's been accumulating primarily on the grass and trees, especially evergreens. Not even the mulch is white. In about an hour from now the feeble effects of the sun will begin to diminish further, allowing for further accumulations.