heavy_wx Posted January 24, 2015 Share Posted January 24, 2015 Pretty good moderate snow here now. Should be getting into the heavier band on radar soon. Link to comment Share on other sites More sharing options...
CarlislePaWx Posted January 24, 2015 Share Posted January 24, 2015 Moderate snow with huge flakes coming down. Still all snow here. Temp down to 32.6. Closing in on one inch. It's a wet snow so it is sticking to literally everything. We had a storm like this last winter. Temp never got below 32.4 with that event. I think we got at least four or maybe five inches with that one. Link to comment Share on other sites More sharing options...
easternsnowman Posted January 24, 2015 Share Posted January 24, 2015 Time to ignore models storm is upon us, it's nowcast! Link to comment Share on other sites More sharing options...
paweather Posted January 24, 2015 Share Posted January 24, 2015 mod snow continues in Palmyra, radar looking good. Link to comment Share on other sites More sharing options...
CarlislePaWx Posted January 24, 2015 Share Posted January 24, 2015 Can anyone from the state college area tell us if the 35 dbz's going through Altoona and rapidly approaching UNV is heavy snow or sleet? I suspect the same echoes near Shippensburg might be sleet?? Temp here down to 32.5. Getting oh-so-close. Link to comment Share on other sites More sharing options...
MAG5035 Posted January 24, 2015 Share Posted January 24, 2015 Just got in from being at Blue Knob snowboarding all evening. Snow arrived down there around 8pm. Roads are pretty rough. Almost 2" already and big fluffy aggregates hammering down. Getting crushed from this heavy band. Link to comment Share on other sites More sharing options...
canderson Posted January 24, 2015 Share Posted January 24, 2015 Can anyone from the state college area tell us if the 35 dbz's going through Altoona and rapidly approaching UNV is heavy snow or sleet? I suspect the same echoes near Shippensburg might be sleet?? Temp here down to 32.5. Getting oh-so-close. Twitterers I've read are saying sleet and even plain rain out near Altoona. Link to comment Share on other sites More sharing options...
MAG5035 Posted January 24, 2015 Share Posted January 24, 2015 Can anyone from the state college area tell us if the 35 dbz's going through Altoona and rapidly approaching UNV is heavy snow or sleet? I suspect the same echoes near Shippensburg might be sleet?? Temp here down to 32.5. Getting oh-so-close. Just came up through Altoona, it's all snow... very heavy snow. Link to comment Share on other sites More sharing options...
AMDEW80 Posted January 24, 2015 Share Posted January 24, 2015 mod snow in hershey..... flakes getting bigger hope not moving to mix Link to comment Share on other sites More sharing options...
Mallow Posted January 24, 2015 Share Posted January 24, 2015 Can anyone from the state college area tell us if the 35 dbz's going through Altoona and rapidly approaching UNV is heavy snow or sleet? I suspect the same echoes near Shippensburg might be sleet?? Temp here down to 32.5. Getting oh-so-close. All snow. Not even the slightest hint of sleet. Aggregates of a mix of flake types... maybe a little riming, but barely noticeable. Even some dendrites mixed in. Link to comment Share on other sites More sharing options...
heavy_wx Posted January 24, 2015 Share Posted January 24, 2015 Can anyone from the state college area tell us if the 35 dbz's going through Altoona and rapidly approaching UNV is heavy snow or sleet? I suspect the same echoes near Shippensburg might be sleet?? Temp here down to 32.5. Getting oh-so-close. All snow here. I think the heavier reflectivity you are referencing has reduced correlation coefficient values, indicating melting aloft and probably sleet reaching the surface. The bottom right panel from KCCX shows this region about 80 km south of the radar. Link to comment Share on other sites More sharing options...
heavy_wx Posted January 24, 2015 Share Posted January 24, 2015 All snow. Not even the slightest hint of sleet. Aggregates of a mix of flake types... maybe a little riming, but barely noticeable. Even some dendrites mixed in. Beautiful aggregates! Makes sense given that conditions are favorable for the growth of dendrites aloft. There's even a hint of a dendritic growth zone on radar in some of the higher tilts. Link to comment Share on other sites More sharing options...
paweather Posted January 24, 2015 Share Posted January 24, 2015 no signs other +SN in Palmyra. Link to comment Share on other sites More sharing options...
Blizzard of 93 Posted January 24, 2015 Share Posted January 24, 2015 Heavy snow in Marysville Link to comment Share on other sites More sharing options...
MAG5035 Posted January 24, 2015 Share Posted January 24, 2015 Beautiful aggregates! Makes sense given that conditions are favorable for the growth of dendrites aloft. There's even a hint of a dendritic growth zone on radar in some of the higher tilts. It's really piling up, there is no mixing to the southwest. I just came from Blue Knob which is at 3k ft in far NW Bedford County and came up through Altoona to get home. I went from just under 2" to 2.5" in the 20 minutes i've been home. Link to comment Share on other sites More sharing options...
Mallow Posted January 24, 2015 Share Posted January 24, 2015 Yeah, we've had at least 1/2" in the past 15 minutes. Up to an inch or so already. The snow is falling thick, the aggregates are puffy, there are lots of dendrites, and it's piling up very quickly! Too bad the band is almost done here. Link to comment Share on other sites More sharing options...
djr5001 Posted January 24, 2015 Share Posted January 24, 2015 scanner really starting to pick up with accidents around the area... correlation coefficient was showing a large area of what was likely mixing from chambersburg moving north but looks to be turning back to snow now... some sleet mixing in here but about 75/25 snow to not snow... most rain/sleet reports hanging around Mason-Dixon Line and creeping north slower than I was expecting Link to comment Share on other sites More sharing options...
NortheastPAWx Posted January 24, 2015 Author Share Posted January 24, 2015 We are underway. Link to comment Share on other sites More sharing options...
CarlislePaWx Posted January 24, 2015 Share Posted January 24, 2015 I'm hearing the faint sounds of some pings outside now. I'd say no worse than 90/10 snow/sleet mix. Sounds like I will go back to all snow soon. Temp down to 32.4. Flake size keeps changing...now about medium size. A little over an inch accumulation, it is compacting somewhat as well. I am going to melt down my accumulated snow at midnight so I can get a quick look at ratios thus far. It's been a wet snow so I am guessing less than 10:1. Link to comment Share on other sites More sharing options...
meteo Posted January 24, 2015 Share Posted January 24, 2015 Im nearing 3 inches here in Altoona...still coming down moderately.....temp at 31.3. Link to comment Share on other sites More sharing options...
CarlislePaWx Posted January 24, 2015 Share Posted January 24, 2015 I'm hearing the faint sounds of some pings outside now. I'd say no worse than 90/10 snow/sleet mix. Sounds like I will go back to all snow soon. Temp down to 32.4. Flake size keeps changing...now about medium size. A little over an inch accumulation, it is compacting somewhat as well. I am going to melt down my accumulated snow at midnight so I can get a quick look at ratios thus far. It's been a wet snow so I am guessing less than 10:1. Update...moderate to almost heavy snow now with barely any pings (95/5). Flake size back to huge again. Link to comment Share on other sites More sharing options...
Mallow Posted January 24, 2015 Share Posted January 24, 2015 Yeah, we've had at least 1/2" in the past 15 minutes. Up to an inch or so already. The snow is falling thick, the aggregates are puffy, there are lots of dendrites, and it's piling up very quickly! Too bad the band is almost done here. Another 12 minutes, another 1/2". Up to just over 1.5" on my car, now. Link to comment Share on other sites More sharing options...
canderson Posted January 24, 2015 Share Posted January 24, 2015 Closing in it looks like 1.25". Link to comment Share on other sites More sharing options...
djr5001 Posted January 24, 2015 Share Posted January 24, 2015 MESOSCALE DISCUSSION 0039 NWS STORM PREDICTION CENTER NORMAN OK 1048 PM CST FRI JAN 23 2015 AREAS AFFECTED...PORTIONS OF CNTRL AND ERN PA...CNTRL/NRN NJ...SE NY INCLUDING NYC AND LONG ISLAND...PORTIONS OF CT CONCERNING...HEAVY SNOW VALID 240448Z - 241045Z SUMMARY...HEAVY SNOW WILL BE DEVELOPING OVERNIGHT TONIGHT -- ESPECIALLY FROM 06Z TO 09Z -- FROM PORTIONS OF THE CNTRL APPALACHIANS ENEWD TO SRN NEW ENGLAND AND THE LONG ISLAND COAST...INCLUDING THE NEW YORK CITY METROPOLITAN AREA. LOCAL SNOWFALL RATES TO 1 INCH PER HOUR WILL BE POSSIBLE. DISCUSSION...MOSAIC RADAR IMAGERY INDICATES A SHIELD OF WIDESPREAD PRECIPITATION EXTENDING FROM THE MID-ATLANTIC TO THE OHIO VALLEY...EMBEDDED WITHIN A BROAD WARM-ADVECTION ZONE ANALYZED AT H85. THIS PRECIPITATION WILL CONTINUE TO SPREAD ENEWD THROUGH THE NIGHT...AS RELATED ISENTROPIC ASCENT IS MAINTAINED WELL DOWNSTREAM OF A POSITIVELY TILTED MIDLEVEL TROUGH...WHICH WATER VAPOR LOOPS DEPICT AS EXTENDING FROM THE MIDDLE OH VALLEY TO THE LOWER MS VALLEY. RECENT SFC OBSERVATIONS SUGGEST 2-HOURLY PRESSURE FALLS AROUND 3.5-4.5 MB FROM SERN VA TO ERN NC...MOST LIKELY A REFLECTION OF INCREASING LARGE-SCALE ASCENT PRECEDING THE TROUGH BECOMING JUXTAPOSED WITH A NE/SW-ORIENTED BAROCLINIC ZONE/INVERTED TROUGH ANALYZED ROUGHLY 40-75 MILES INLAND FROM THE COAST. SFC LOW PRESSURE IS FORECAST TO CONSOLIDATE/DEEPEN FROM THIS INTERACTION AND MOVE OFF THE COAST...WITH A CORRESPONDING INCREASE IN WAA AND FRONTOGENETIC ASCENT TO ITS N. IN TURN...PRESENT PRECIPITATION INTENSITY WILL BE MAINTAINED...OR PERHAPS INCREASE...ACROSS THE DISCUSSION AREA...PARTICULARLY AS A DEFORMATION BAND BECOMES ESTABLISHED WELL N/NW OF THE EVOLVING SFC CYCLONE. SUBJECTIVE SPATIAL INTERPOLATION BETWEEN THE 00Z IAD AND OKX RAOBS SUGGESTS NEAR- TO BELOW-FREEZING TEMPERATURES EXISTING...AND CONTINUING TO EXIST...THROUGHOUT THE TROPOSPHERE ACROSS THE MCD AREA. THIS IS ESPECIALLY THE CASE GIVEN CONTINUED NOCTURNAL DIABATIC COOLING AND MODEST ADIABATIC COOLING ASSOCIATED WITH DCVA PRECEDING THE APPROACHING MIDLEVEL TROUGH. WHERE SFC TEMPERATURES REMAIN SLIGHTLY ABOVE 0C FROM SERN PA TO CNTRL NJ...WET-BULB-ZERO HEIGHTS WILL GENERALLY REMAIN AOB 500 FT AGL -- AS AFFIRMED BY RAP FORECAST SOUNDINGS AND INTERPOLATED OBSERVED SOUNDINGS. AS SUCH...SNOW IS FORECAST TO BE THE PREDOMINANT PRECIPITATION TYPE ACROSS THE DISCUSSION AREA...WITH DEEP...NEAR-ISOTHERMAL/NEAR-0-C LAYERS FOSTERING EFFICIENT GROWTH OF SNOW AGGREGATES. AS SUCH...SNOWFALL RATES WILL LOCALLY REACH 1 INCH PER HOUR. SUCH RATES IN HEAVY SNOW WILL LIKELY MATERIALIZE BETWEEN 06Z AND 09Z FROM CNTRL PA TO CNTRL NJ...WHILE SPREADING ENEWD TOWARD THE NEW YORK CITY AREA AND SRN NEW ENGLAND THROUGH THE LATE-NIGHT HOURS. VERY LATE TONIGHT...GENERALLY AFTER 10Z...IT IS POSSIBLE THAT STRENGTHENING ONSHORE FLOW ALONG THE E-CNTRL NJ COAST -- IN RESPONSE TO CYCLOGENESIS FARTHER SOUTH -- MAY SUPPORT SUFFICIENT LOW-LEVEL WARMING FOR PRECIPITATION TO MIX WITH AND/OR CHANGE TO RAIN. HOWEVER...THIS WILL GENERALLY BE IN A CONFINED AREA NEAR THE COAST WHERE OCEANIC HEAT FLUXES ARE MAINTAINED INLAND ONLY OVER A MODEST DISPLACEMENT. Link to comment Share on other sites More sharing options...
paweather Posted January 24, 2015 Share Posted January 24, 2015 +SN in Lebanon County Link to comment Share on other sites More sharing options...
NortheastPAWx Posted January 24, 2015 Author Share Posted January 24, 2015 Btw, here's the link to phil882's site he posted in the last thread with the HRRR floater on UNV. http://www.atmos.albany.edu/student/ppapin/hrrr.php#flt Link to comment Share on other sites More sharing options...
Rick G Posted January 24, 2015 Share Posted January 24, 2015 mod snow in Wilkes-barre 29f Link to comment Share on other sites More sharing options...
CarlislePaWx Posted January 24, 2015 Share Posted January 24, 2015 From my midnight report...Moderate snow with somewhat finer flakes. Snowfall accumulation 1.4". Melted snow 0.15" for just shy of a perfect 10:1 ratio. All snow now with no pings detected. Temp down another tenth to 32.3 degrees. Pressure 29.88" and falling rapidly at a rate of 0.046"/hr. Link to comment Share on other sites More sharing options...
Jonesy56 Posted January 24, 2015 Share Posted January 24, 2015 Heavy snow here in Linglestown. Just returned from a walk. Beautiful. Can't think of a better way to start the weekend. Link to comment Share on other sites More sharing options...
NortheastPAWx Posted January 24, 2015 Author Share Posted January 24, 2015 Everything's coated. Won't be able to tell accumulations until morning...but it's coming down well atm. Rick G might have to cover the numbers, if you can sir... Link to comment Share on other sites More sharing options...
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