Mailman

Euro seems to stay frozen the whole time for us. Not showing big totals here, but I won't complain about 4-6" from a Miller B.

GFS going the wrong way.

NAM coming in south of 12z.

Euro looking good again.

Euro has improved.

GFS still has it snowing for 48 hours as the low waltzes its way up the northeast coast. I'll take it! Canadian is all blue.

May have to go to Frederick. lol.

Euro also showing that same low probability Miller B.

GFS coming around for storm #2.

URGENT - WINTER WEATHER MESSAGE National Weather Service Pittsburgh PA 1247 PM EST Thu Dec 31 2020 OHZ039>041-048>050-057>059-068-069-PAZ007-013-014-020>022-029-031- 073-075-WVZ001>004-510-511-513-010200- /O.NEW.KPBZ.WW.Y.0018.210101T1200Z-210101T1800Z/ Tuscarawas-Carroll-Columbiana-Coshocton-Harrison-Jefferson OH- Muskingum-Guernsey-Belmont-Noble-Monroe-Mercer-Lawrence-Butler- Beaver-Allegheny-Armstrong-Washington-Greene-Westmoreland-Fayette- Hancock-Brooke-Ohio-Marshall- Ridges of Eastern Monongalia and Northwestern Preston-Preston- Western Tucker- Including the cities of New Philadelphia, Dover, Carrollton, Malvern, East Liverpool, Salem, Columbiana, Coshocton, Cadiz, Steubenville, Zanesville, Cambridge, Martins Ferry, St. Clairsville, Caldwell, Woodsfield, Sharon, Hermitage, Grove City, New Castle, Ellwood City, Butler, Aliquippa, Beaver Falls, Ambridge, Monaca, Pittsburgh Metro Area, Kittanning, Ford City, Washington, Canonsburg, Waynesburg, Murrysville, Greensburg, New Kensington, Lower Burrell, Latrobe, Monessen, Uniontown, Weirton, Follansbee, Wellsburg, Wheeling, Moundsville, Coopers Rock, Kingwood, Bruceton Mills, Parsons, Hendricks, and Saint George 1247 PM EST Thu Dec 31 2020 ...WINTER WEATHER ADVISORY IN EFFECT FROM 7 AM TO 1 PM EST FRIDAY... * WHAT...Freezing rain expected. Total ice accumulations of a light glaze. * WHERE...Portions of northwest, southwest and western Pennsylvania, east central Ohio and northern and the northern panhandle of West Virginia. * WHEN...From 7 AM to 1 PM EST Friday. * IMPACTS...Very slippery sidewalks, roads and bridges are possible. The hazardous conditions could impact the morning commute. * ADDITIONAL DETAILS...Precipitation will changeover to rain as temperature increases through midday Friday.

3" here.

All snow here. Never got the sleet.

.NEAR TERM /THROUGH FRIDAY/... The leading edge of shallow cold air at 2200UTC is straddling the forecast area, stretched from near Marienville PA to near Pittsburgh to near Fairmont WV. Atop this shallow layer remains a relatively warm tongue of air, leading to a PTYPE transition across wrn PA/ern OH and the nrn WV panhandle. Farther west near ZZV, cold air has successfully eroded the warm tongue, leading to a region of all snow from near PHD to ZZV. Prior forecast (see below) identified a focused region of ern OH where conditions will be favorable for considerable snowfall rates this evening as still colder air invades and lift/saturation are maximized through the dendritic growth zone. This region still seems to be where the highest totals are likely. Headlines were continued, but upgraded for a few counties adjacent to the ongoing warning in line with the latest information available. The latest expectation is that snow rates in ern OH could potentially reach 1-2" per hour for a window this evening. By 0600UTC, a dry slot will erode moisture aloft, which should bring an end to widespread threat of heavy snow. This dry slot brings some concern about snow amounts for wrn PA, where a late transition to snow (as most models suggest) may preclude totals quite as high as previously forecasted. Dry, fluffy snow likely will continue past 0600UTC, but fall rates will be limited. The ridges, however, will remain at a temperature favorable for highly efficient snow ratios, and still could see notable totals by mid-day tomorrow.

DT claims 6" for all.

18z GFS was rather active.

Lake effect snow making its way into western PA. Will be nice to see.

Yeah.. all the models seem to be hinting (however you wanna call it 8 days out) at the possibility of some holiday flakes. Would be nice. I need a couple days off from the models, though. It's a grind that can wear you down.

.NEAR TERM /THROUGH THURSDAY/... Precipitation is beginning to wind down across the Upper Ohio Valley and Allegheny Mountains. Heavy snowfall has fallen across much of the area, leading to hazardous travel conditions. Winter weather advisories and warnings remain in effect through dawn. 3 to 6 inches fell across much of eastern Ohio into the Northern West Virginia panhandle, while the Pittsburgh metro received in between 6 and 12. The local "bullseye" as far as snow accumulation is east towards Indiana County, with multiple reports over a foot. Please see the latest local storm reports (LSRs) and Public Information Statement (PNS) to see the latest snow reports. Precipitation has backed off significantly, or has come to an end altogether, for areas west of the northern WV Panhandle. Meanwhile, high snow rates in excess of an inch are still possible east of I-79 where the exiting TROWAL/Fgen band shifts off to the north and east. The I-79 corridor, Pittsburgh included, is looking at a possible inch of additional accumulation while locations farther east from Clarion southward through Indiana and Greensburg may easily pick up an additional 3 or more inches of snowfall before the higher rates end in the next few hours. By daybreak, dry air will begin to move into the dendritic growth zone such that any remaining dendrites will turn into an area of freezing drizzle. However, low-level moisture may also be lost, coincident with widespread meso- and synoptic- scale lift also ending. So most precipitation should be out of there area by dawn or shortly thereafter. A few models pick up on a fetch of lake-enhanced moisture with low-level instability sufficient enough to produce a few flakes in the mid-afternoon... however, accumulation will nil and any impacts insignificant. As far as temperature, lowered the immediate forecast down a few degrees based on observations. Temps will be slow to come up tomorrow given the cold air mass, cloud cover, and snowpack. Highs will range from around 30-35 for most of the area and few degrees colder in the higher elevations of the Allegheny Mountains.

Still snowing. I measured 8".

Maybe close the calendar year out with a white Christmas.