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Pittsburgh, PA Thread


meatwad

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Some nice returns popping up in Eastern Ohio.. Snow looks like its clearing Western Ohio..

Looks like the trough is turning the precip a bit more toward a north-south orientation, so it probably won't clear though our area, as fast as it cleared through western oh.

Yeah, looks like that forcing mentioned earlier is coming into eastern oh.

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Looks like the trough is turning the precip a bit more toward a north-south orientation, so it probably won't clear though our area, as fast as it cleared through western oh.

Yeah, looks like that forcing mentioned earlier is coming into eastern oh.

I was thinking that to be the case too, but figured it may have been my radar hallucinations

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Looks like the trough is turning the precip a bit more toward a north-south orientation, so it probably won't clear though our area, as fast as it cleared through western oh.

Yeah, looks like that forcing mentioned earlier is coming into eastern oh.

The snow bands are going NE, But the whole system looks to be going East.. So you almost have to look at a ENE action.

Columbus Airport reported 4.2"

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As of 6:51 p.m., 0.15" liquid-equivalent precipitation has fallen at KPIT. NWS PIT measured 1.9" snow at 7:03 p.m. this evening. Thus, ratios during the early portion of this storm are turning out to be ~12-13 : 1. I expect ratios to increase a bit as temps cool somewhat over the next few hours. 18z NAM QPF seems to be doing well, too, based on what has fallen so far. Given all of that, I think another 2-4" of snow should fall this evening through about 1 - 3 a.m. this morning. :snowman:

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Ivory's reasoning was lack of a closed H5 low. Historically, that is a perfectly valid line of thought for Pittsburgh with Ohio Valley lows and coastal transfers. This really was not consistent until the final few model runs, despite the high QPF's creeping closer.

The Feb 5th storm was NOT in any way shape or form a slam dunk HERE. Places to the east had 2.0" to 2.5" QPF totals and had about a 200 mile radius of the same. So if something went a little wrong in DC....no biggie...a shift still meant 20" a snow. With us, a shift would have changed things a bunch.

My complaint about the locals was not adjusting in mid storm. The H5 low and strong mid level jet was in order, there was already a foot on the ground, the 0Z's showed another foot possible, and radar was certainly incredible. Why didn't they adjust to something better than 12-14" at 11:00PM? That I have no idea.

But my ultimate point is we do need to back off and not compare everything to Feb 5th. They have been fine in the last 11 months. The NWS was good on Feb 5th, and has also been very good since. I would love to get to point where I am reading people like Ivory's or Bologna's comments here, instead of some 17 year old kid in the North Hills. I think letting that busted forecast go may help our chances

Agree, it would be great to have a local Met in for discussion in our area.

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Look at this at 384 GFS, I don't thnk I have ever seen bright yellow on the models, except in a tropical system. Can you imagine living in the Sierra Nevadas, what is that like 100" of snow in a 60 hr period. Can you say Donner Party.

<img src="http://www.nco.ncep.noaa.gov/pmb/nwprod/analysis/namer/gfs/18/images/gfs_p60_384l.gif"

Thankfully, that's the 384 and will probably change with the very next run. But yeah, that's very unusual. That would set records if it happened!

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Picked up 2.5 inches of snow so far, thinking that some new bands may form on the backside, snow will last overnight based on what i am seeing on the radar

Keeping the 5-9 inch totals

Nailed another storm in the coffin :thumbsup:

I'm not even going to comment on your track record.....

But for fun...

You need to base your "verification" on midpoints. Your forecasted midpoint is 7". If the final P.I.S. shows spotter reports averaging near 7", we will say you verified. If it has a couple reports creeping up over 5", you did NOT verify just because it hit your low end. That does not reflect an event with a 7" midpoint

NorthPgh (the original) had an excellent point about the width of your spreads. If the NWS was calling for 5-9" and most people barely crept up over 5", we would consider it a forecast that was overdone.

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-- Changed Discussion --SNOW WILL CONTINUE OVER THE UPPER OHIO VALLEY INTO THE EARLY HOURS

OF FRIDAY, BUT HEAVIER SNOW WILL OCCUR THROUGH THIS EVENING.

OVERALL TOTALS OF 3 TO 6 INCHES STILL LOOK OK GIVEN PROGRESSION

AND REPORTS FROM THE WEST, SO ADVISORY WILL BE MAINTAINED WITH

ONLY MINOR TWEAKS TO SNOW TOTALS.

SNOW WILL LIGHTEN TO SHOWERS BY MORNING AS THE LOW TRANSITIONS TO

THE COAST AND AS MID LEVEL DRY SLOT SWEEPS SEEDING ICE OUT OF THE

AREA. RESIDUAL MOISTURE AND A RETURN OF WEST-NORTHWESTERLY WINDS

WILL KEEP A CHANCE FOR SNOW SHOWERS OVER THE NORTHWESTERN

PENNSYLVANIA COUNTIES AND THE RIDGES FOR FRIDAY. SNOWFALL TOTALS

THROUGH THE TIME PERIOD ARE EXPECTED TO BE IN THE 3 TO 5 INCH

RANGE THROUGH TOMORROW MORNING WITH ADDITIONAL LIGHT ACCUMULATIONS

FRIDAY.-- End Changed Discussion --

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Look at this at 384 GFS, I don't thnk I have ever seen bright yellow on the models, except in a tropical system. Can you imagine living in the Sierra Nevadas, what is that like 100" of snow in a 60 hr period. Can you say Donner Party.

I think it happened last winter...i remember a big storm out west and it actually happened.

the one that gave a ton of snow AZ (mtns) i believe?

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I'm not even going to comment on your track record.....

But for fun...

You need to base your "verification" on midpoints. Your forecasted midpoint is 7". If the final P.I.S. shows spotter reports averaging near 7", we will say you verified. If it has a couple reports creeping up over 5", you did NOT verify just because it hit your low end. That does not reflect an event with a 7" midpoint

NorthPgh (the original) had an excellent point about the width of your spreads. If the NWS was calling for 5-9" and most people barely crept up over 5", we would consider it a forecast that was overdone.

Well some forecasts are done with that spread because of topography and micro climates. I live in the highest hill in Washington County, I routinely get 1" more than someone 1 mile away, same could be said for someone in the Laurels and someone in Robinson. I have 3" of snow on my deck right now, I just measured it. I will most likely end up around 6", while the airport may get 4". Anyways if we are going to nitpick look at the spread in the latest NWS discussion "3-6 inch totals" that is what a 50% statistical variation or what we like to call a SWAG(Scientific Wild As* Guess) so I will cut the NWS and yes some posters here some slack.

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Well some forecasts are done with that spread because of topography and micro climates. I live in the highest hill in Washington County, I routinely get 1" more than someone 1 mile away, same could be said for someone in the Laurels and someone in Robinson. I have 3" of snow on my deck right now, I just measured it. I will most likely end up around 6", while the airport may get 4". Anyways if we are going to nitpick look at the spread in the latest NWS discussion "3-6 inch totals" that is what a 50% statistical variation or what we like to call a SWAG(Scientific Wild As* Guess) so I will cut the NWS and yes some posters here some slack.

What part of McMurray do you live in? Because I swear I live on the highest hill in this area.

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Well some forecasts are done with that spread because of topography and micro climates. I live in the highest hill in Washington County, I routinely get 1" more than someone 1 mile away, same could be said for someone in the Laurels and someone in Robinson. I have 3" of snow on my deck right now, I just measured it. I will most likely end up around 6", while the airport may get 4". Anyways if we are going to nitpick look at the spread in the latest NWS discussion "3-6 inch totals" that is what a 50% statistical variation or what we like to call a SWAG(Scientific Wild As* Guess) so I will cut the NWS and yes some posters here some slack.

Sure....but the micro climates and mesoscale features that cause variation need to reflect a prediction around a general midpoint. This is clearly a 4" to 6" storm. The average will probably be 5-ish.

So some weenie says he is going to hype it up then "call for 5-9", with zero meteorological reasoning. Then he can claim victory as long as totals creep over 5".... or he fabricates amounts otherwise. If the 10% chance of a widespread 7 or 8" event happens, then he really claims victory. It's win/win, and eventually after 10 storms the outlier scenario happens.

Anyway,It's a non issue to me at this point. If the mods want to ban him (again) they will.

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Some updated totals...

**********************12 HOUR SNOWFALL**********************

LOCATION 12 HOUR TIME/DATE COMMENTS

SNOWFALL OF

/INCHES/ MEASUREMENT

OHIO

...COLUMBIANA COUNTY...

WELLSVILLE 2.8 758 PM 1/20

...MUSKINGUM COUNTY...

NORWICH 2.0 724 PM 1/20

PENNSYLVANIA

...ALLEGHENY COUNTY...

FOX CHAPEL 2.0 819 PM 1/20

...BUTLER COUNTY...

OGLE 2.0 832 PM 1/20

...FAYETTE COUNTY...

FARMINGTON 1.2 830 PM 1/20

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