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Well, PTC has been designated off the Florida coast. Models have really honed in on the NC coast from Cape Fear to Hatteras as a landfall threat. Models are also indicating this could become fully tropical before landfall, and possibly strengthen to a high-end TS. As a short notice event, folks should probably prepare for the equivalent of a hurricane landfall. The forecast track also could be nudged west, as some models are showing. Areas from the Triangle-east need to pay attention. This is likely to produce higher impacts than Idalia for the state.
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Now the dreaded season (for me) is upon us. Heat, storms, flooding and waiting on that first cold front in September to arrive and seeing those first lows in the 40s. I don't know what the summer will bring, but we know it will be hot and humid. Severe season is already off to a bad start with the tornado outbreak that spurred a lot of fatalities last week. I know it can't be avoided but I hope we don't have any more this spring.
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Looks like the first ten days or so will be warm, but that is not a lock. After three years of La Nina, we are probably closing-in on our last few months of this ENSO phase. La Nina's often yield warm Januarys, but something makes me think we buck the trend this month for at least part of the month. I have January as AN in my seasonal forecast, but a portion of the last 20 days of the month could be quite cold. I still expect some wild swings this winter w/ a base warm pattern and very cold interludes.- 923 replies
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Since we do have a variety of forum posters in areas that will see snow/sleet/ZR - at least initially and on the backend, plus there is a flood threat, along with some potential advisory-level winds and possibly record breaking cold, decided to go ahead and make an obs thread. Currently misty and mostly virga and 36 with dp 32 here in NW Philly. -
Meteorological Spring hits March 1st, thus begins the quiet season on the forums. This thread should suffice until fall for any long range disco. I doubt the last flakes have fallen this year but I don't really expect another widespread winter threat either. It was definitely a Plateau to Western Tennessee winter. Tough for Eastern areas not to do any better with virtually the entire month of January being BN for temps. The flood threat, as it always seems to be these days, is definitely elevated again this spring. The severe threat, I'll leave that to Jeff, Jax, and the rest of the severe gurus. -
We don't get a ton of activity once severe season ends, so this thread should carry us til September/Fall.
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Thursday will be a regional severe wx outbreak. @CheeselandSkies I think SPC was waiting for American guidance to come toward the ECMWF. It was stubbornly slow this time. Regardless of how we got here, we are at hatched ENH Day 3 now. First thing I noticed with 12Z guidance is that 500/200 mb winds are forecast WSW. Some of the sloppy South days those winds are SSW. From the SW is plenty of turning. From the WSW as forecast offers robust turning with height. No strange 700 mb winds, smooth forecast hodographs. LLJ is still forecast S or SSW, correct for South severe, even on the squirrelly GFS runs. Winds of course strengthen with height too. Warm sector looks a little bigger than last week defined by northward extent of the synoptic warm front. That does not necessarily mean intense severe weather farther north. That'll depend on the outflow boundary situated south of the warm front, and influenced by midday rain. Undisturbed warm sector soundings should have a little EML and lots of instability. Background pattern is there for a severe weather outbreak. Mesoscale details remain up in the air as usual Day 3, including the size of the region impacted.
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Going to get this loaded and on-deck for observations for December, January, and February. Specific events will likely have their own observation threads. This thread is for the time in between events. Winter is coming! In honor of the last Skywalker movie...
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Long range modeling is well into meteorological spring now. Things also get pretty quiet in here beyond winter, so probably not a huge need for monthly threads for a while. That said, we are coming out of a huge flooding/rain event and the GFS is showing a possible return to those conditions. The 16 day rain total, from 00z shows 10-12 inches falling over the period. So the extremely wet patten looks to continue. There may or may not be a brief cold shot in the early month period and there could be a winter threat in there, though obviously have to be heavily skeptical of it. After that, if we can believe the weeklies, warmth is back for the remainder of March.
