Polar Vortex 2014 Posted February 21, 2015 Share Posted February 21, 2015 The NWS in State College downgraded most of their CWA to an advisory. Wonder if PBZ will follow suit? Link to comment Share on other sites More sharing options...
KPITSnow Posted February 21, 2015 Share Posted February 21, 2015 The NWS in State College downgraded most of their CWA to an advisory. Wonder if PBZ will follow suit? Stop........ Link to comment Share on other sites More sharing options...
north pgh Posted February 21, 2015 Share Posted February 21, 2015 Snow is picking up here. Radar looks good. Hoping Pitt can hold on against Syracuse Link to comment Share on other sites More sharing options...
KPITSnow Posted February 21, 2015 Share Posted February 21, 2015 Snow is picking up here. Radar looks good. Hoping Pitt can hold on against Syracuse Yeah...making me nervous, but I think pitt holds on. Radar looks good..hopeful for at least 2-3 more. Link to comment Share on other sites More sharing options...
colonel717 Posted February 21, 2015 Share Posted February 21, 2015 Looks like next Saturday is another possible event. That would make 3 Saturdays in a row. Something to watch. The 12 ECM has 6+ in a line from Texas to Maine. Monster. Runs up western apps Link to comment Share on other sites More sharing options...
colonel717 Posted February 21, 2015 Share Posted February 21, 2015 Looks like areas around AGC starting to mix Link to comment Share on other sites More sharing options...
Mailman Posted February 21, 2015 Share Posted February 21, 2015 Freezing rain currently. Link to comment Share on other sites More sharing options...
KPITSnow Posted February 21, 2015 Share Posted February 21, 2015 Looks like areas around AGC starting to mix Probably not going to make it all the way to agc. Link to comment Share on other sites More sharing options...
CoraopolisWx Posted February 21, 2015 Share Posted February 21, 2015 Obs. in ohio are mostly snow so far, especially south of I-70. Hopefully the precip gathering in S.Indiana and Ohio, will give us good rates later on. This will help neutralize any BL issues. Link to comment Share on other sites More sharing options...
KPITSnow Posted February 21, 2015 Share Posted February 21, 2015 Obs. in ohio are mostly snow so far, especially south of I-70. Hopefully the precip gathering in S.Indiana and Ohio, will give us good rates later on. This will help neutralize any BL issues. I thinking if there is a switch it will be to plain rain. There are several stations reporting snow but are above freezing. Link to comment Share on other sites More sharing options...
colonel717 Posted February 21, 2015 Share Posted February 21, 2015 Probably not going to make it all the way to agc. Based on the radar it has Link to comment Share on other sites More sharing options...
Mailman Posted February 21, 2015 Share Posted February 21, 2015 Link to comment Share on other sites More sharing options...
KPITSnow Posted February 21, 2015 Share Posted February 21, 2015 Based on the radar it has The radar is generally not super accurate.... Link to comment Share on other sites More sharing options...
north pgh Posted February 21, 2015 Share Posted February 21, 2015 Moderate snow here now. Flake size increasing. Hardest it has snowed since this morning. What areas in Allegheny County are mixing? Link to comment Share on other sites More sharing options...
southpark Posted February 21, 2015 Share Posted February 21, 2015 Moderate snow here now. Flake size increasing. Hardest it has snowed since this morning. What areas in Allegheny County are mixing? I have a definite mix in South Park Link to comment Share on other sites More sharing options...
RitualOfTheTrout Posted February 21, 2015 Share Posted February 21, 2015 Looks like next Saturday is another possible event. That would make 3 Saturdays in a row. Something to watch. The 12 ECM has 6+ in a line from Texas to Maine. Monster. Runs up western apps Sounds like we might be sweating temps maybe? I'll start tracking this one Monday if its still there once the buzz wears off from today. Link to comment Share on other sites More sharing options...
colonel717 Posted February 21, 2015 Share Posted February 21, 2015 I have a definite mix in South Park Yea, I am near you in BP and it is definitely rain/freezing rain here now. Glad I left a coating of snow on the driveway. Link to comment Share on other sites More sharing options...
RitualOfTheTrout Posted February 21, 2015 Share Posted February 21, 2015 Looks like a nice slug of precip on the radar in southern OH, hopefully it stays together and hits us. Link to comment Share on other sites More sharing options...
colonel717 Posted February 21, 2015 Share Posted February 21, 2015 Moderate snow here now. Flake size increasing. Hardest it has snowed since this morning. What areas in Allegheny County are mixing? The area most susceptible in AGC to the warm tongue, the south hills... Link to comment Share on other sites More sharing options...
RitualOfTheTrout Posted February 21, 2015 Share Posted February 21, 2015 I just went out and checked and I am getting light drizzle now too. Hope it switches back over when the heavier precip moves in. Link to comment Share on other sites More sharing options...
southpark Posted February 21, 2015 Share Posted February 21, 2015 Yea, I am near you in BP and it is definitely rain/freezing rain here now. Glad I left a coating of snow on the driveway. Same here. We put in a new driveway so we can't put salt on it until next winter. So the coating of snow definitely helps. Link to comment Share on other sites More sharing options...
blackngoldrules Posted February 21, 2015 Share Posted February 21, 2015 The area most susceptible in AGC to the warm tongue, the south hills... Yep. Almost never fails. Getting light rain in Bridgeville as well. This is what I was concerned about and what I'm always concerned about when lows track like this. They always underestimate it. At least it's getting the salt off of my truck. Link to comment Share on other sites More sharing options...
RitualOfTheTrout Posted February 21, 2015 Share Posted February 21, 2015 Other thing I just noticed is its getting a bit breezy. Prior to now its been pretty calm out there. Link to comment Share on other sites More sharing options...
Polar Vortex 2014 Posted February 21, 2015 Share Posted February 21, 2015 Light rain in the South Hills. Not sure of the exact temperature, but probably mid to upper 30s. The warning can definitely be cancelled. Roads are the best they've been all month. Link to comment Share on other sites More sharing options...
meatwad Posted February 21, 2015 Share Posted February 21, 2015 Rain here in Monroeville, temp is 36. Link to comment Share on other sites More sharing options...
Polar Vortex 2014 Posted February 21, 2015 Share Posted February 21, 2015 Talked to my folks back in Ohio, and they are getting clobbered. Meanwhile we've got another warm tongue of rain. Every single storm. It's like a broken record. Link to comment Share on other sites More sharing options...
Rd9108 Posted February 21, 2015 Share Posted February 21, 2015 Will the rates overcome the warming? Link to comment Share on other sites More sharing options...
Thunderhead Posted February 21, 2015 Share Posted February 21, 2015 Will the rates overcome the warming? My hunch is that they won't, unfortunately, because the warmest air in this case is closest to the surface, instead of farther up. Vertical motion is usually weakest at the bottom and top of the troposphere, so little-if any-dynamic cooling would be occurring near the surface. Link to comment Share on other sites More sharing options...
jwilson Posted February 21, 2015 Share Posted February 21, 2015 Marginal events continue the trend to be just that: marginal events. This time we got a double whammy of dry slotting & rain. What exactly caused the dry slot and why didn't any models pick up on it? Is that something models can't feasibly forecast? I'd like to learn for future events so I know when that could be a concern. At 3" this was still the biggest event of the year for me. That sounds pretty sad. Link to comment Share on other sites More sharing options...
Thunderhead Posted February 21, 2015 Share Posted February 21, 2015 Marginal events continue the trend to be just that: marginal events. This time we got a double whammy of dry slotting & rain. What exactly caused the dry slot and why didn't any models pick up on it? Is that something models can't feasibly forecast? I'd like to learn for future events so I know when that could be a concern. At 3" this was still the biggest event of the year for me. That sounds pretty sad. Well, the GFS at least did show a break in between vort maxima: http://mp1.met.psu.edu/~fxg1/AVNEAST_0z/avneastloop.html It shows up in the 3-hourly QPF product. It also shows the sequence of vort maxima moving over the region in southwesterly flow. AFAIK this dry slot hasn't been really bad...i.e. yes MGW had 2 hourly reports with no precip, but thus far precip has not stopped at PIT. As far as p-type goes, 540 dam 1000-500 hPa thickness + soundings signaled to me that MGW would be having p-type issues: 540 line progged north of MGW signaled that a layer was going above 0C, and then soundings showed that the warmest layer would be close to the surface. Result: rain. It is possible that if the warm layer was shallower, snow could still be falling w/ 2 m temp of 37F. Link to comment Share on other sites More sharing options...
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