Jump to content

OHweather

Meteorologist
  • Posts

    4,889
  • Joined

  • Last visited

Everything posted by OHweather

  1. 0.7" here overnight and this morning. Looks like the big winner this morning was Chardon with around half a foot. My "total" since Thursday evening is 1.8". The trough has appeared to edge back north over the lake and for a time here the best snow is going to be going into extreme NE Cuy/Lake/northern Geauga. There's another push south with the trough working its way east, it's currently approaching the Lake Erie islands, so that will hopefully get snow into more of Cuyahoga and southern Geauga again early to mid afternoon. It's still a guess as to where the best snow sets up tonight but I'm thinking Cleveland metro into the primary Snowbelt. There could be a mesolow or two that each drop a few inches quickly as they come inland tonight, and I really think CLE should go advisory for at least Cuyahoga, Lake, and Geauga for now and possibly expand later. Someone could still get a warning amount through Monday morning. Even if the best snow is on the east side tonight everyone should get a burst tomorrow morning as the surface trough finally pushes well south and winds go more north for a time.
  2. Models this evening and some early short-range models look encouraging for that band setting up along the lakeshore into the snowbelt and not down along route 30. We could see warning criteria in spots if this sets up tonight into Monday like it looks like it may. Just gotta figure out the exact placement. We should get a hint in the morning or early afternoon when we see where the initial band makes it to, as it will probably hold steady or wiggle north a bit in the evening as the shortwave approaches.
  3. I don't expect a bunch tonight, an inch or two in the snowbelt, but we should see a band slowly sag through the area tomorrow and drop an inch or two...maybe a few if it slows down somewhere. Tomorrow night is still interesting despite less than stellar hi-res models. Conditions are OK to good for lake effect and we'll still have the surface trough nearby. Some models push it well inland and keep it out of the picture, but again with fairly weak winds and no strong cold air advection immediately behind the trough it may struggle to push south as quickly as the models show, and may wiggle back north ahead of the shortwave tomorrow evening. There is the potential for several inches of snow to fall along that trough if it's far enough north to be enhanced by the lake. If the trough is south, I still think with a light, very well aligned NW flow along with some moisture and lift from the shortwave passing that some LES will flare up. I expect at least 1-3" across the Cleveland metro and Snowbelt tomorrow night, but if that trough is north that could easily turn into more. Between the initial snow band sagging south with the trough during the day Sunday and potential flareup with the trough Sunday night it's possible some advisories could be needed in NE OH.
  4. We'll see what happens tonight through Sunday night. Models agree on the winds turning WNW by some point Sunday morning with OK lake effect conditions pushing a moderate band south into the Cleveland metro and Geauga County. Disagreement on whether the band keeps sagging south straight through Sunday night with no really organized LES developing Sunday evening as the shortwave goes by, or if the winds back a little bit ahead of the shortwave and keep the band over the Snowbelt for a longer period of time Sunday evening. Everyone should have a shot at at least a couple of inches as the band sags south late tonight into Sunday morning, but whether the band can stall or even lift back north a bit for a time later during the day Sunday into Sunday night will determine if anyone possibly sees several inches. The WNW push of winds Sunday isn't extremely strong so it's possible the band does get stuck closer to the lake...but most of the hi-res models do gradually push it south in their most recent runs. We'll see. Hopefully everyone can get a couple of inches.
  5. Got about 0.7" here last night. It is STILL above freezing at CLE!
  6. Plenty of snow flew today...none of it has stuck so far outside of the higher terrain, and in the lower elevations it has been mixed with rain.. Hopefully we can squeak out some light accumulations tonight. Later in the weekend still has the potential to be very interesting, but a little white on the ground now would be nice to look at.
  7. I need to learn to be more succinct at some point. If you want a quick summary...a little snow in NE OH today through Friday AM, a break, then the bulk of this snow is expected Saturday night through Monday AM. That will likely need tweaked as we get closer but there could be a couple of nice bursts in that time period. Discussion: A long duration snow shower event, featuring lake and terrain enhancement at times, will occur Thursday through Monday east and southeast of Lake Erie, bringing locally heavy amounts of snow by the time the event runs down. It would have been nice if the lake were several degrees warmer or if temps aloft were several degrees colder, but I suppose we’ll have to make do with what we have after over two weeks of virtually no snow in the dead of winter. The action starts this afternoon (Thursday) as a shortwave trough aloft and surface trough/wind shift drop ESE across Lake Erie and NE Ohio. 850mb temperatures of around -5 to -6C and 925mb temps of around -1 to -2C, with surface temps in the 30s is marginal for supporting all snow during the day Thursday. I’m sure any decent showers would fall as snow or grauple and locations higher than 1000 feet in elevation could remain all snow or grauple as well, but in the lower elevations it may not be all snow. The shortwave will provide a shot of lift thanks to positive vorticity advection aloft along with good moisture to nearly 15k feet. Low level lapse rates will be conditionally unstable, and the surface trough should provide enough convergence to focus some bursts of moderate precipitation across northern Ohio as it drops through during the late morning and afternoon. Frictonal convergence could favor a more organized band of precipitation from the western lakeshore east through the Cleveland metro into the southern Snowbelt that moves more slowly. Ororgraphic lift in parts of this corridor may also contribute to better precipitation. Lake to 850mb temp differentials are only running around 7C during the day Thursday so I expect little lake contribution to the instability, but the layer of steep lapse rates and good moisture along with sources for lift could squeeze out a good tenth to quarter inch of precip in a corridor from Cuyahoga and northern Medina Counties points east-southeast towards Youngstown on Thursday. Snow ratios will be 10:1 or less due to the strongest lift being focused beneath the DGZ (zone where temps are between -12C and -18C) and also due to mild surface temperatures, so most areas should see less than an inch of snow…but locations about 1000 feet that perhaps see this better “band” for a few hours could squeak out a couple of inches by Thursday evening. NW PA will also see several hours of decent orographic lift on Thursday and may see slightly colder temps/better ratios thanks to higher terrain, so there could be some 2-3” amounts in the higher terrain in inland NW PA, with probably just about none near the lake. I’m not extremely impressed with the setup for Thursday night, as we will be in a region of large scale sinking motion between two shortwaves. The mid levels will dry some and other than some upslope there won’t be any good sources for lift. With a slightly north of due west mean low-level flow Friday night with little shear, moisture to 6-7k feet, inversion heights around 7k feet, and lake to 850mb temp differentials of 10-11C, there could be some minor lake effect snow Friday night. The best shot will be in the higher terrain where orographic lift could help wring out the moisture picked up off the lake: My best guess right now for Thursday night is an inch or two of snow mainly along and north of route 6 in NE Ohio…especially in the higher terrain, probably an inch or less along the lake…and 2-3” in the higher terrain in inland Erie County Thursday night. Not really heavy but some snow should continue off and on through the night, particularly in NW PA in the higher terrain. Some Lake Michigan moisture could allow for a few snow showers with local minor accumulations south of route 6 in the rest of the NE OH Snowbelt Thursday night. Snow ratios will improve a bit as the DGZ lowers and as surface temps cool below freezing. The next shortwave will move through Friday afternoon, with an accompanying increase in mid level moisture and some large scale lift. The winds will back to the WSW Friday morning and early afternoon ahead of this shortwave, which may focus a band along the shoreline from eastern Lake County east across Ashtabula County into Erie County for a few hours during this timeframe. Instability will still be less than stellar, with lake induced equilibrium levels only around 7k feet. With that said, steep low level lapse rates and good moisture to about 9k feet along with some convergence along the shoreline could allow for some moderate snow Friday afternoon as this shortwave approaches. The low level winds feature some shear on the models, so this combined with marginal instability may make it hard to sustain snow rates of more than an inch an hour. The fairly strong and somewhat more WNWrly winds around 850mb may allow the snow to penetrate inland some in Erie County east into SW NY Friday afternoon. This setup on Friday may again allow another inch, maybe two, of snow in extreme NE Ohio from parts of Lake County into northern Ashtabula County, with perhaps 2-4” across parts of NW PA. With questions about band organization I have a hard time seeing anyone getting much over 4” in NW PA during the day Friday, but some light accumulating snow could occur over most of Erie County during the day. Friday night again is a less than stellar setup for heavy snow…there will be a brief more WNW push of winds Friday evening behind the shortwave, which may push the snow a bit farther inland. Mid-level moisture again decreases later Friday evening and inversion heights come down to less than 5k feet as we get some sinking motion behind the shortwave, so any snow may taper again for several hours Friday night. I think some spots in far NE Ohio and mainly Erie County in NW PA could see 1-2” Friday night, but I struggle to see a ton more. Another shortwave glances the region Saturday morning, and this could lead to a brief increase in snow. With WSW winds ahead of this shortwave and no real push of WNW winds behind it (due to the shortwave passing mainly to our north), this snow should mainly affect Erie County and perhaps graze the lakeshore in parts of Lake and Ashtabula Counties. This shortwave just barely glances us so there won’t be as great a shot of large scale lift or mid-level moisture, and inversion heights may struggle to climb back too far above 5k feet…so there may be an inch or two of snow with this shortwave Saturday morning in the lakeshore in far NE Ohio into parts of Erie County, but I struggle to foresee much more at this time. There should again be a break in the snow later Saturday morning into the afternoon in the sinking motion behind the morning shortwave, and also as winds begin backing to the southwest ahead of a series of more potent shortwaves. A band of heavy snow will likely develop just south of a BUF on the SW flow Saturday afternoon with better antecedent moisture up there, a 13C lake to 850mb temp differential over eastern Lake Erie and full fetch of the lake. This band could persist for several hours and produce over half a foot of snow. The models agree on two potent shortwaves or really more like small upper lows dropping through the Great Lakes Saturday afternoon through Monday morning. They do NOT agree on the exact tracks of these shortwaves and exact impacts on our lake effect/enhanced snow potential. The Saturday night scenario is complex, as the models show two separate shortwaves tracking west to east across the region. It is possible we get split by the two shortwaves completely, in which case the best lake effect may remain to our north with less of a push of winds to the WNW. If the northern shortwave tracks overhead, we’d likely see a heavy snow band work its way down the lakeshore and into the Cleveland metro Saturday night into Sunday morning with winds shifting to the WNW by Sunday morning. The models show 500mb temperatures dipping solidly below -35C with the shortwave Saturday night, so if that shortwave can track far enough south there’d be a deep layer of instability over the lake…to go along with deep moisture to around 10k feet and good convergence with the wind shift associated with the shortwave. This is the first decent potential for advisory to locally warning criteria snow in NE Ohio, and there’d be a good chance for some warning snows in parts of NW PA and SW NY depending on how the band evolves as it shifts down the lakeshore. The 0z NAM was on the fence…it had the shortwave Saturday night/early Sunday far enough south to improve our lake effect conditions some and shift the winds to the WNW. The 0z GFS was a little too far north…while the 0z Euro appears to be close to the NAM or perhaps even a bit better. Subtle trends in this shortwave could mean the difference between another ho-hum 1-3” in the northern primary Snowbelt Saturday night and a more widespread 2-4” (perhaps locally more). The GFS ensembles over the last several runs have trended deeper with the overall trough over southeastern Canada, which is a favorable trend. We will see what happens: There will probably again be somewhat of a break in the snow later Sunday morning into the afternoon as we get into some sinking motion (briefly) behind the Saturday night/Sunday morning shortwave. Another impressive shortwave will round the base of the trough Sunday night and this one will likely move overhead. This shortwave will actually try to swing around to neutrally tilted per the current model consensus Sunday evening, which may allow a low pressure to attempt to start forming nearby before the energy moves east of the Apps by Monday morning. This shortwave could bring several hours of good large scale lift along with a deep layer of moisture and instability. The wild card is the exact track of the shortwave and any low that tries developing. If a low develops over the lake or over northern Ohio, there could be several hours of heavy lake enhanced snow. If the low develops farther north, the snow could lift north into NW PA or perhaps SW NY and give us just a quick band with the wind shift as the whole trough shifts east/southeast later Sunday night. Again, there’s considerable uncertainty with Sunday night’s situation. The general trend on the models has been a little more robust with this shortwave, which if it occurs would be interesting. There should, either way, be another burst of accumulating snow in the Snowbelt Sunday night into Monday morning, but the exact amounts and placement won’t be known for at least another couple of days…this is still about 4 days away which is quite far out. Ridging should build in Monday and end the snow by early evening. Some of the forecast parameters for Sunday night into Monday morning are eye-popping…but we have a few days to watch the evolution of that potent shortwave so things may change. A burst of heavy snow is certainly possible though depending on the wind direction Sunday night into Monday morning. As for amounts…thinking an inch or two in the higher terrain in the primary and secondary NE OH Snowbelts on Thursday, little to no accums in the lower elevations. Could see 2-3” in the higher terrain in NW PA with little near the lake. For Thursday night thinking an inch to locally two in the higher terrain in the northern NE OH snowbelt, with maybe half an inch here and there a little farther south if we can see some Lake MI snow showers…up to 2-3” in inland NW PA, with around an inch near the lake. For Friday thinking maybe an inch along the lake in Lake and Ashtabula, and 1-4” across Erie County, with the 3-4” amounts occurring where/if a better band can try to establish. For Friday night thinking maybe a local 1-2” in extreme NE OH into Erie County PA. Saturday again maybe a quick 1-2” in parts of Erie County, little to none elsewhere. Saturday night will go for a widespread 3-5” for Erie County and 2-4” in the primary NE OH Snowbelt into Crawford County PA…and 1-3” back into the secondary Snowbelt (including the Cleveland metro) west into Lorain County…but this is less than certain and I could see more or less occurring in spots. Will not expect more than a local inch or two during the day Sunday as we look to see a break. For Sunday night I will go for 2-4” in the primary NE OH Snowbelt and 1-3” in the secondary…with an inch possible well west and south since there’s good synoptic support. I’ll go 1-3” for NW PA for now. Sunday night into Monday is pretty uncertain, and this is a conservative, broad-brushed first guess for now. This pushes totals to 10-18” in inland Erie County…possibly more near the NY boarder in the higher terrain where the higher ends are more likely to be met on a period to period basis…to 6-12” in Geauga County to 3-6” across the Cleveland metro. A lot of this potential snow is occurring Saturday night through Monday and I broad brushed that for now…it could end up being more or less…but in the interest of rolling this all into one first guess forecast I gave it a shot.
  8. The Chautaqua Ridge is going to see a good 4 days of almost nonstop snow and eastern Erie Co should do well too. Those areas should easily see over 2 feet in the higher terrain. I'll try to draw out my thoughts late tonight after work...southern and western Erie County west into NE OH will see some good breaks in the snow and won't see as much. The one period I'm watching for a better band into NE OH is Saturday night through late Sunday night as a couple of good shortwaves move overhead with a slow moving surface trough meandering around near the lake.
  9. If we had a colder airmass or warmer lake, this would be quite a good lake effect snow set up starting Thursday. As is, the trough hanging around Thursday through Monday will provide for a respectable amount of low and mid level moisture along with just enough instability to get some lake enhancement, along with winds running west to northwest for most of the time. I count at least 4 short waves or vort maxes on the models from Thursday morning through Monday morning moving through, so winds will move around some (and at times go WSW and shift any lake effect/enhanced snow over the lake) and also there will probably be some bursts of snow (including outside of the Snowbelt) as the shortwaves go by. Because of the lack of stronger instability I sort of wonder if anyone can even hit the 4" in 12 hour advisory criteria at any point during this event...the best chances would probably be in parts of NW PA into SW NY. Thursday into Thursday night look to have the best large scale support for a decent burst of snow showers, but temps will probably be a little above freezing during the day Thursday. With that said, the long duration of the event should allow it to add up in the Snowbelt...some spots will probably see a foot or more of snow, over the course of 4 days. The higher terrain in parts of NW PA into SW NY could see more. Most areas should at least get a few inches down by Monday in the Snowbelt. The winds go WNW at times which should bring snow down towards me and also into Cuyahoga County at times, but again at this time it doesn't look extremely heavy so those areas may only see a couple inches to locally a few inches through Monday. Outside of areas that see lake effect, the frequent shortwaves and instability created by the cold air aloft with the trough should allow some light amounts by Monday, but not much to write home about. I think there is some risk of a Panhandle Hook storm starting around the end of next week into the first 10 days of February...there will be some risk of cutters in that pattern as well, but if something doesn't cut we could see a half decent synoptic storm.
  10. That boarders on exceptional I'd have to think. At least we'll melt the ice off the lake...
  11. There haven't been many spread the wealth LES events...the couple there were (the one in November and the one last week) were not extremely impressive, so it has just been a few spots seeing the bulk of the snow. We need some clippers or a little more synoptic snow for places that haven't seen the lake effect. Even though some areas have missed or just been grazed by a lot of the LES events, the number of advisory or warning worthy events the last 5 weeks or so has been rather impressive...just a matter of getting some of those better events to occur a little farther south and west.
  12. After the band it was mainly just flurries. 0.8" is my best guess here. Just keep nickel and diming I guess.
  13. Despite the ice, conditions become rather optimal ahead of the cold front for a few hours. I think a couple of W to E bands will develop ahead of the trough and those will be the spots that could see over 4"...especially in NW PA. We will see where the bands develop in NE OH, may again be a little north of most of us. Elsewhere I still think a quick inch, maybe two with the squall along the front. Everything should diminish quickly early Sunday morning as dry air and a short fetch take over. More snow Tuesday morning, could be a couple inches, then we still have the weekend deal to watch.
  14. Should be another burst of les Saturday night as a cold front moves through. It'll be short lived, but if a band can flare up ahead of the front a corridor could see several inches. Outside of that it'll be a quick burst with the front, maybe 1-2" at most because it pushes through quickly and the air really dries out behind the front Sunday morning.
  15. No radar coverage certainly doesn't help you. Should be impressive totals near the shoreline though.
  16. Next weekend could be interesting, but it's still 8 days out. Can't ignore a 1050mb high just to our north if you can throw a lot of moisture up our way. I'm more worried about not getting the moisture far enough north than not being cold enough at this point, so it'll probably just rain There's still enough heat flux through thinner ice that with some above freezing temps/rain/wind this week that we'll still probably get some juice from the western basin when it gets cold again...but yeah, for some spots this has been a very frustrating LES season. Some areas have done very well, but some big "losers" as well.
  17. The flow is too weak for locations well inland yes. 3SW Willoughby had 7" as of 5am and Euclid got 4" between 7pm and 11pm...so that narrow corridor did well. Everywhere else the band moved a bit too much and kept amounts to 2-3" it looks like. Parts of Erie County in NW PA saw upwards of a foot overnight.
  18. Lol, the models are now bringing another surface trough through Saturday morning and turning the winds WNW instead of letting a high build in. I can't imagine the snow being extremely intense by then, but maybe it sneaks far enough SW for Trent to pick up a couple of inches. Us inland folk may never do great with such light winds. Arctic front moves through Saturday night probably with another burst of snow that could be a couple or few inches. It'll all add up a little bit.
  19. Coming up on two inches here as well. All things considered not a bad total.
  20. Today will put me over 20" so I still like my chances. Average out my way is probably 70-75", which will be tough. 50" not as hard.
  21. These little bursts don't last long but they're certainly nice. I've gotten so used to SE Ohio that a 50" winter would knock my socks off at this point but a good spread the wealth event or storm would be nice at some point
  22. Between the snow today and the little burst of les tonight with the wind shift you guys should get like 2"...but yeah the best will again be farther north.
  23. I don't have time to put together a write up, but here are some quick thoughts for Thursday evening-Saturday morning. This map only includes snow from 7pm Thursday on and does not include anything falling before then, including the LES or light clipper snow. A established and heavy band of snow should push off the lake mid to late Thursday evening into the primary snowbelt in NE OH and NW PA as a surface trough/wind shift pushes south. Thinking is we get a WNW flow Thursday night behind the clipper which initially sets a band up in northern/eastern Cuyahoga into central Geauga before the winds go W to WSW Friday morning and push things into Lake/maybe extreme northern Geauga. We get another little shortwave Friday evening that may push things back south a bit (after perhaps a break for most everyone briefly Friday afternoon) and re-intensify the band for a time, before things end by early Saturday. Snow showers may linger a few hours longer in NW PA on Saturday until the winds go due SW by noon. Instability is moderate and moisture is OK but not great. There could be some Lake MI help. Winds look light, generally 15MPH or less, which favors better banding and keeps the heaviest closer to the lake. Ratios will be high so accumulations could be quick. Banding moves some but may lock in for several hours Friday morning into the afternoon on a flow that generally favors Lake County. With some accumulating snow lingering through Friday night this turns into a fairly long duration event, and I'd be shocked if favored areas didn't see over 6". Parameters don't support super heavy 2-4" per hour rates, but any band could easily produce an inch an hour through Friday afternoon before conditions diminish further Friday evening into Friday night. Right now I favor NE OH for a little more snow than NW PA for this leg of the event because of the surface trough pushing south into extreme NE OH and trying to focus the heaviest snow there. The W flow favors better shoreline convergence in NE OH as well. Tough call for Cuyahoga. Flow doesn't really have any northerly component by 7AM Friday on the models and is light, so any snow by that point would affect Euclid at most and that's about it. With a light WNW flow Thursday night into very early Friday, convergence may sit over northern Cuyahoga and could drop accumulating snow even as far west as the western lakeshore before it shifts north Friday morning...amounts could be higher near the lake farther west, but I'm not extremely confident in that yet.
  24. They probably need a warning for Erie County...you can tell on radar and satellite that things organize as you head through eastern Ashtabula Co into NW PA...pretty typical for a strong due W to WSW flow. Things will shift out over the lake during the day Thursday, but Thursday night through Saturday AM will be interesting at times. The best banding may be in NE OH Thursday night into Friday morning, but Erie County should get some more chances Friday and Friday night.
  25. Someone in Lake or Ashtabula could sneak in 4"...the snow isn't that organized but the heavier bursts keep training over the same areas so it may add up some. Pretty favorable conditions for a band to develop late tomorrow night into Friday with a light W wind and moderate instability...NAM and GFS have a W to WNW flow for several hours before backing later Friday morning, Euro doesn't ever develop a northerly component. I think there will be warning amounts tomorrow night into Friday but it'll be interesting to see if that band can get into northern Cuyahoga or Geauga before it shifts north. Wind direction will be important.
×
×
  • Create New...