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Pittsburgh, PA Thread


meatwad

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I have no problem with you putting your guesses for storms but here is what I think is wrong with them.

You have too big of a spread. I have seen 12-18 back around Christmas. 6-12 recently. And this one of 4-8.

I have not seen a model or discussion of 8 inches for Pittsburgh area. Why have it?

That is why you see the NWS and local mets with 3-5 or 3-6 in some cases.

This is why 4-8" is too big a spread:

Winter Storm Watch: 6inches/12hours or 8inches/24hours possible

Winter Storm Warning: 6inches/12hours or 8inches/24hours imminen

Winter Weather Advisory: 3inches/12hours / Blowing & Drifting snow

4" is advisory level, 8" is warning level. Two whole different ballgames. That's why NWs doesn't say 3-8"...such a prediction is meaningless and tells you nothing.

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I have no problem with you putting your guesses for storms but here is what I think is wrong with them.

You have too big of a spread. I have seen 12-18 back around Christmas. 6-12 recently. And this one of 4-8.

I have not seen a model or discussion of 8 inches for Pittsburgh area. Why have it?

That is why you see the NWS and local mets with 3-5 or 3-6 in some cases. Average people out there will always take the higher number and run with it. Example: If you say 6-12, everyone goes around saying we are getting a foot. Then when you get 6 inches they think you overreacted. If you do this too many times than people won't believe you and you here the stories of weathermen being wrong all the time. You do not want to underestimate the situation but you also do not want to scare people as well.

I remember back around the Christmas storm when Philly and New York had blizzard watches. You said you thought Pittsburgh was going to get 12-18 inches and should issue a blizzard watch. What did we get? Nothing I believe. Could you imagine if the NWS took your advice and issued a blizzard watch. The tv stations would be nuts and the supermarkets would go crazy. Then 2 days later we have nothing and the NWS is crucified for blowing it.

I am not a met. I am interested in weather and always learning. Most times the mets know what they are doing and do a good job. Like I said before, I have no problem with people making predictions all over these forums but you need to tone it down. And don't forecast model to model. Those that have been on here as long as I have know that Western Pa. always has several 12-20 inch long range snowfalls on the models and we actually end up with 1 of these every 5 years or so.

I do believe that we will still get a good 3-5 inches and things will get bad here quickly tonight.

Ok the Christmas Storm was really hard to forecast, and i just sucked at that storm, It's a new year so whatever, but last weeks storm i went with 6-12 inches and we got 10 to 11 inches in most places, and i go with 4-8 inch snow this storm because somewhere they will get locally higher amounts, (plus look out west in Indiana to Missouri they got totals up to 10 inches from the same duration were expecting

Who knows who cares, were getting snow enjoy it people, discussion over

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I hate when people use weather from a thousand miles away to try to predict ours..

I agree. Sometimes it can be close but not in this case. St. Louis, MO is reporting 9.6" in past 24 hours when it snowed for about 18 hours. We will not see the heavier snow over us for as many hours as it did there so because they have almost 10" doesn't mean Pittsburgh will have 10".

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Wow, looks good. I read in the Central PA thread that the Low is stronger right now than the models depicted so that might be a good sign for us.

I have had very light snow / flurries here in Greensburg for about 45 minutes now.

For those of you who are actually following the storm, the NAM really increased qpf here all the way back through Ohio. Snowman.gif

nam_pcp_012l.gif

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For those of you who are actually following the storm, the NAM really increased qpf here all the way back through Ohio. Snowman.gif

nam_pcp_012l.gif

Hasn't the NAM had us between .25 and .35 throughout?. Looks like the Highlands got a pretty big increase in QPF.

They have KLBE at 7" and .39 QPF

post-4833-0-78155900-1295553575.jpg

And look at Johnstown over 9" and near .50 QPF

post-4833-0-16650000-1295553637.jpg

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I like how the radar returns are setting up for us right now. Some of the heavier returns in Ohio seem to be heading in this general direction. I better get home today before that stuff moves in. It'll probably get here after sunset and that's when the roads should start getting covered.

I am doing some unscientific extrapolation here based on the snowfall rates and the estimated time of the storm. Looks like about 1/2 inch per hour types snow(Averaging the light stuff we had an hour ago), with what looks like the heavy stuff early this evening. So we have 10-12 hours estimated of this left, based on the speed of the system and the as progged QPF content. I think we over perform the models a little, to guess I would say 5-6" at Pittsburgh Airport by early tomorrow morning. My point to my Tulsa story was that this system will not give us 9" of snow, but that maybe , just maybe the storm was stronger than was modeled and that is turning out to be true.

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Ritual of the Trout was asking for some PBZ euro love so i'm here to distribute some. For the storm early next week, it is a miller B storm that eventually anchors a nice moderate looking snow shield over all of PA. Western PA gets about two periods of .1-.25 and some frames of <.1 on either side. Checked station output at PIttsburgh, Butler and Latrobe and they're all pretty much about half an inch total. The storm actually stays pretty much at or above 1000mb for the duration so that helps even the big cities stay mainly snow as the low stays a bit off the coast. And it helps you guys keep it all snow as well since the Ohio valley low is very weak. Def potential for a bigger snowfall out of this but its not too shabby as it stands currently.

As for tonight's event here's my final map:

post-1507-0-23805700-1295556397.png

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I am doing some unscientific extrapolation here based on the snowfall rates and the estimated time of the storm. Looks like about 1/2 inch per hour types snow(Averaging the light stuff we had an hour ago), with what looks like the heavy stuff early this evening. So we have 10-12 hours estimated of this left, based on the speed of the system and the as progged QPF content. I think we over perform the models a little, to guess I would say 5-6" at Pittsburgh Airport by early tomorrow morning. My point to my Tulsa story was that this system will not give us 9" of snow, but that maybe , just maybe the storm was stronger than was modeled and that is turning out to be true.

I'm beginning to think 5 or 6" as well, especially if some of this mesoscale banding pans out.

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Ritual of the Trout was asking for some PBZ euro love so i'm here to distribute some. For the storm early next week, it is a miller B storm that eventually anchors a nice moderate looking snow shield over all of PA. Western PA gets about two periods of .1-.25 and some frames of <.1 on either side. Checked station output at PIttsburgh, Butler and Latrobe and they're all pretty much about half an inch total. The storm actually stays pretty much at or above 1000mb for the duration so that helps even the big cities stay mainly snow as the low stays a bit off the coast. And it helps you guys keep it all snow as well since the Ohio valley low is very weak. Def potential for a bigger snowfall out of this but its not too shabby as it stands currently.

As for tonight's event here's my final map:

post-1507-0-23805700-1295556397.png

Thanks for the insight, MAG

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I'm thinking the same. Looks like we are going to get some hvy snow just in time for rush hour (which, I believe, is typical for Pittsburgh).

I noticed that Cincinnati is reporting heavy snow and 1/4 mile visibility.

This is a good sign as they have had several hours of moderate snow. I was expecting this for us as well but if we can get some heavy snow for an hour or 2 we could pick up an additional couple inches.

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The snow falling outside my house is very light but there's a ton of those little flakes, so it's accumulating on the road. Definitely low ratios right now. Are the ratios supposed to increase overnight?

By the way, first time posting here hotdog.gif

Welcome! Where you at?

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I noticed that Cincinnati is reporting heavy snow and 1/4 mile visibility.

This is a good sign as they have had several hours of moderate snow. I was expecting this for us as well but if we can get some heavy snow for an hour or 2 we could pick up an additional couple inches.

Colombus reporting same.

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