Mailman Posted November 16, 2014 Share Posted November 16, 2014 If it weren't the middle of November, this would sting. Thankfully, there is a long way to go. Link to comment Share on other sites More sharing options...
psunate1977 Posted November 16, 2014 Share Posted November 16, 2014 If we aren't getting accumulating snow I don't want anything. < 1" does nothing for me and it will be gone quick. Cold rain sucks. Link to comment Share on other sites More sharing options...
psunate1977 Posted November 16, 2014 Share Posted November 16, 2014 From NWS Cleveland grrrrr Link to comment Share on other sites More sharing options...
Rdd9108 Posted November 17, 2014 Author Share Posted November 17, 2014 I will sacrifice this storm if we can atleast get a storm that drops atleast 8 inches. Its November and we can't get fringed all winter two years in a row. Link to comment Share on other sites More sharing options...
CoraopolisWx Posted November 17, 2014 Share Posted November 17, 2014 I will sacrifice this storm if we can atleast get a storm that drops atleast 8 inches. Its November and we can't get fringed all winter two years in a row. Yeah, in January and February when we're getting pasted by Miller A's, and areas north and west are getting scraps, we'll laugh at this storm. Lol GFS still showing some post frontal precip tomorrow, we'll see how quickly the surface cold air rushes in though. Link to comment Share on other sites More sharing options...
north pgh Posted November 17, 2014 Share Posted November 17, 2014 The HRR is showing the snow staying in central Beaver County and West at least through 9:00 am. http://rapidrefresh.noaa.gov/HRRR/jsloopLocalDiskDateDomainZip.cgi?dsKeys=hrrr_ncep_jet:&runTime=2014111700&plotName=1hsnw_t7sfc&fcstInc=60&numFcsts=16&model=hrrr&ptitle=HRRR%20Model%20Fields%20-%20Experimental&maxFcstLen=15&fcstStrLen=-1&resizePlot=1&domain=t7 Link to comment Share on other sites More sharing options...
tsteel Posted November 17, 2014 Share Posted November 17, 2014 Snowing pretty good right now up in Butler County. If only it would Stay that way... Link to comment Share on other sites More sharing options...
CoraopolisWx Posted November 17, 2014 Share Posted November 17, 2014 Frozen precip mixing with the rain around here. Link to comment Share on other sites More sharing options...
north pgh Posted November 17, 2014 Share Posted November 17, 2014 Rain here with wet snow mixed in. Temp is down to 36.8 Link to comment Share on other sites More sharing options...
meatwad Posted November 17, 2014 Share Posted November 17, 2014 All rain here. Link to comment Share on other sites More sharing options...
north pgh Posted November 17, 2014 Share Posted November 17, 2014 0Z Nam is ever so slightly colder. Instead of getting to 37 temp gets to 35 or so. I am guessing if we can keep some longer periods of snow we may see and inch or 2 mostly from the city North. I am guessing we change to mostly snow after noon tomorrow but I wonder how much precip falls after that. Link to comment Share on other sites More sharing options...
psunate1977 Posted November 17, 2014 Share Posted November 17, 2014 0Z Nam is ever so slightly colder. Instead of getting to 37 temp gets to 35 or so. I am guessing if we can keep some longer periods of snow we may see and inch or 2 mostly from the city North. I am guessing we change to mostly snow after noon tomorrow but I wonder how much precip falls after that. That's going to be the issue. Link to comment Share on other sites More sharing options...
north pgh Posted November 17, 2014 Share Posted November 17, 2014 I am getting straight snow now. Temp is dropping to 35.2. Accumulating on grassy areas. Link to comment Share on other sites More sharing options...
Thunderhead Posted November 17, 2014 Share Posted November 17, 2014 I am getting straight snow now. Temp is dropping to 35.2. Accumulating on grassy areas. RadarScope Precipitation Depiction product is showing rain/snow line stretching from northern Washington Co. to Pittsburgh then NE up to western Indiana Co. Enjoy it Link to comment Share on other sites More sharing options...
Rdd9108 Posted November 17, 2014 Author Share Posted November 17, 2014 So Thunder how much snow do you think Pittsburgh actually receives. If any Link to comment Share on other sites More sharing options...
north pgh Posted November 17, 2014 Share Posted November 17, 2014 I love Radarscope. This precip depiction is very accurate. Snow is still coming down. I must be the only one getting snow or every one is sleeping. Link to comment Share on other sites More sharing options...
psunate1977 Posted November 17, 2014 Share Posted November 17, 2014 Link to comment Share on other sites More sharing options...
Rdd9108 Posted November 17, 2014 Author Share Posted November 17, 2014 Its like Pittsburgh is the official wall that separates rain and snow. Link to comment Share on other sites More sharing options...
Thunderhead Posted November 17, 2014 Share Posted November 17, 2014 So Thunder how much snow do you think Pittsburgh actually receives. If any Well, the warm air advection is still occurring, but the lower levels were not saturated when the precip began falling, so the evaporational cooling probably allowed PIT to cool a bit. However, last report has air temp and dew point both at 32F, so we're saturated...no more evaporational cooling. The HRRR seems to be doing a good job with the rain/snow line so far, and it has much of Allegheny Co. switching to rain by 6z/1 a.m. I'll go with that. Little in the way of snow as KPIT is reporting a vis of 2 mi...fairly light stuff. Axis of best snow looks to run from Lawrence Co. to SE Mercer, Venango and Warren Cos. with perhaps 4-6". Another I-80 special. I love Radarscope. This precip depiction is very accurate. Snow is still coming down. I must be the only one getting snow or every one is sleeping. Agreed. I remember RadarScope doing well in the late Nov. storm last year, too. Link to comment Share on other sites More sharing options...
CoraopolisWx Posted November 17, 2014 Share Posted November 17, 2014 It'll be interesting to see how much of the precip currently in the mid south, changes to snow tomorrow. Looks like a race between the precip and cold air. Link to comment Share on other sites More sharing options...
blackngoldrules Posted November 17, 2014 Share Posted November 17, 2014 Its like Pittsburgh is the official wall that separates rain and snow. Yep. And I'm always on the wrong side of that wall. lol Link to comment Share on other sites More sharing options...
blackngoldrules Posted November 17, 2014 Share Posted November 17, 2014 I have the radarscope app on my phone. Is there a website that shows it? Link to comment Share on other sites More sharing options...
psunate1977 Posted November 17, 2014 Share Posted November 17, 2014 Line is def moving NW. Link to comment Share on other sites More sharing options...
Thunderhead Posted November 17, 2014 Share Posted November 17, 2014 MAG over in the C Pa. thread reminded me of the correlation coefficient product available since the NWS upgraded the radars to dual-pol a few years ago. It may be factored in to the RadarScope Precipitation Depiction product-I don't know. But you can use the correlation coefficient as a guide to determine where there's a transition zone. Strictly rain or snow show up as high CC's, say ~0.97 or higher. Melting/gloppy snow would have a lower CC, between 0.85 and 0.95. (Source: http://www.erh.noaa.gov/rah/downloads/Dual_Pol/CC_v1.pdf) The College of DuPage has a nice Nexrad Doppler radar site that provides the correlation coefficient among other variables. http://weather.cod.edu/satrad/nexrad/index.php?type=PBZ-N0C-1-6 Notice the line of lower CC (yellow-green colors) moving northward during the loop across Allegheny, southern Armstrong and Indiana Cos. That's probably the rain/snow line moving northward. Link to comment Share on other sites More sharing options...
north pgh Posted November 17, 2014 Share Posted November 17, 2014 MAG over in the C Pa. thread reminded me of the correlation coefficient product available since the NWS upgraded the radars to dual-pol a few years ago. It may be factored in to the RadarScope Precipitation Depiction product-I don't know. But you can use the correlation coefficient as a guide to determine where there's a transition zone. Strictly rain or snow show up as high CC's, say ~0.97 or higher. Melting/gloppy snow would have a lower CC, between 0.85 and 0.95. (Source: http://www.erh.noaa.gov/rah/downloads/Dual_Pol/CC_v1.pdf) The College of DuPage has a nice Nexrad Doppler radar site that provides the correlation coefficient among other variables. http://weather.cod.edu/satrad/nexrad/index.php?type=PBZ-N0C-1-6 Notice the line of lower CC (yellow-green colors) moving northward during the loop across Allegheny, southern Armstrong and Indiana Cos. That's probably the rain/snow line moving northward. Pretty accurate. My temp has fallen to 33 but I am getting more of a drizzle now. I think also the lightening of the precip has also caused the change to drizzle. Looking at the lates HRR Allegheny County will switch to snow after noon tomorrow. The precip will also be lighter when the switch over occurs. Link to comment Share on other sites More sharing options...
blackngoldrules Posted November 17, 2014 Share Posted November 17, 2014 Pretty accurate. My temp has fallen to 33 but I am getting more of a drizzle now. I think also the lightening of the precip has also caused the change to drizzle. Looking at the lates HRR Allegheny County will switch to snow after noon tomorrow. The precip will also be lighter when the switch over occurs.It'll be pretty much the usual for this area. By the time enough cold air gets drawn in to change things to all snow, most of the moisture will be gone. As Mike Tomlin would say, it is what it is. Link to comment Share on other sites More sharing options...
ChalkHillSnowNut Posted November 17, 2014 Share Posted November 17, 2014 The standard is the standard.... or not Link to comment Share on other sites More sharing options...
Stinkbugspecialist Posted November 17, 2014 Share Posted November 17, 2014 This is what we are used too. Link to comment Share on other sites More sharing options...
colonel717 Posted November 17, 2014 Share Posted November 17, 2014 The standard is the standard.... or not Obviously, our snowfall possibilities are below the line... Link to comment Share on other sites More sharing options...
Rdd9108 Posted November 17, 2014 Author Share Posted November 17, 2014 Doesn't look like we will see any measurable snow this month. The pattern seems to relax, and then reload early/mid december. Link to comment Share on other sites More sharing options...
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