beanskip
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13z HRR just lost about 4 degrees/50 miles off the wedge in S.C. and NE Georgia.
I think we will have temps supportive of sleet until 7-8am. At which point potentially around half of our qpf has fallen. But, we’ll see! I don’t feel confident about any of this. Could easily be almost all freezing rain.While we are sitting at -7 to -10 925’s yes. We don’t stay at those temps very long. Those quickly turn into -1 to -5. That’s cold enough to stop a deeper warm nose with 850’s at +8 to +11
Temperatures are going to be extremely important hereI think you are to hyper focused on temperatures. I personally think the NAM is gonna win this one from an overall standpoint. No model is gonna do great here. I think it’s important to look at it all. Temperature/moisture/precip type. Who wins this battle as a whole? Great storm to look back on.
If the whole batch of moisture is shaped like an upside down letter V. Then its aiding,helping and sign moisture will be more pronounced.It depends on how they align. If they are perpendicular, they can sometimes enhance moisture. If they were like a straight line across the gulf, it can cut them off. A professional can fact check me but thats how I remember it going.
It’s just drier there on this run, check the dews.13z HRR just lost about 4 degrees/50 miles off the wedge in S.C. and NE Georgia.
As someone hyper focused on the front end thump it’s suspiciously dry compared to other models in my neck of the woods, as well as bringing sleet line in fastestI think you are to hyper focused on temperatures. I personally think the NAM is gonna win this one from an overall standpoint. No model is gonna do great here. I think it’s important to look at it all. Temperature/moisture/precip type. Who wins this battle as a whole? Great storm to look back on.
Yeh at this point who knows. Temperatures like @jackendrickwx said are huge. Gonna be a fun one to look back on & see who did it best.As someone hyper focused on the front end thump it’s suspiciously dry compared to other models in my neck of the woods, as well as bringing sleet line in fastest
Watching it like “I’m onto you” with narrow eyes
Who caresMid-Atlantic weenies losing their minds![]()
Got a fun thing to throw intoYeh at this point who knows. Temperatures like @jackendrickwx said are huge. Gonna be a fun one to look back on & see who did it best.
” but remember the other day when this “Front Thump” was all FRZN up to like Central KY ? Yea just a hair of a correction south over the last 48. I honestly don’t think anyone in VA sees more than .1” FRZN. And NC MAYBE someone does for .45”. I highly doubt ANYONE is going over .55” across our board with this as fas ICE. We’ve seen this a million times…. It will be sleet. That closed contour high is still there at 9am. No model had this. All the models have our high pressure settling way further northeast later today. Not sure if it’s meaningful or not, but it can’t be a bad sign if you want colder low levels, imo.
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Nam is running about 6 degrees too warm on dewpoints currently in northeast ga into sc as a whole. That will equal about 2 degrees difference if it held. As expected that falls within the 1 to 3 degree error range i've been beating a dead horse about. These dewpoint differences matter.12k NAM too warm and too high on dewpoint at TDF - 23/5(actual) vs 26/7
apologies if it's already been mentioned but Been wondering if we could see a meso high pinch off after the carolinas/va saturates...further locking in the cold air from scouring out tomorrow. This feature has caused many a model to be wrong in wedge erosion.That closed contour high is still there at 9am. No model had this. All the models have our high pressure settling way further northeast later today. Not sure if it’s meaningful or not, but it can’t be a bad sign if you want colder low levels, imo.
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if I look at one more model run for this storm I will need to be institutionalized and I’m sure many feel similarlyNo RGEM discussion? Any differences?
I know latest HRRR is +3-4 Degrees too high on Surface temp but good on dewpoints for my area at this timeNam is running about 6 degrees too warm on dewpoints currently in northeast ga into sc as a whole. That will equal about 2 degrees difference if it held. As expected that falls within the 1 to 3 degree error range i've been beating a dead horse about. These dewpoint differences matter.
My family is asking me what the models are saying this morning and I’m likeif I look at one more model run for this storm I will need to be institutionalized and I’m sure many feel similarly
I have learned one thing from this storm: there are a lot of weather models in use today.if I look at one more model run for this storm I will need to be institutionalized and I’m sure many feel similarly
That closed contour high is still there at 9am. No model had this. All the models have our high pressure settling way further northeast later today. Not sure if it’s meaningful or not, but it can’t be a bad sign if you want colder low levels, imo.
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Here, just south @Downeastnc , (Surf City), On the Coast..It's windy here as the cold air pours into the area N wind gusting to 30 at times.
FFC is also re-introducing sleet here with accumulations over half an inch now. Seems in line with modeling but we have to see verification as the column moistens.Wedge discussion from this morning’s FFC disco (posted around 6:45 am EST):
Forecasting the Wedge:
We have talked a lot in previous Area Forecast Discussions (AFDs)
about the wedge/cold air damming footprint and strength, and its
impact on the severity of this ice storm. A skilled blend of high-
resolution model guidance was used to arrive at the temperature
and dew point forecasts through the short term period, to capture
the staying power of the wedge as precip reinforces its
characteristic cold, surface-based airmass. The result is a
forecast largely unchanged from yesterday afternoon`s shift -- the
wedge and associated freezing rain (and some sleet) spreading
southward and westward tonight through Sunday morning. The wedge
should begin to erode along its southern and western fringes on
Sunday afternoon and evening as Gulf low pressure shifts
northeastward across the area. That said, for parts of northeast
Georgia in the core of the wedge airmass, temperatures may not get
much above freezing (if at all) on Sunday afternoon. This may
include cities/towns such as Dahlonega, Dawsonville, Gainesville,
Suwanee, Lawrenceville, and Athens.
They put sleet accum wording in mine as well, albeit *under* 1/2”FFC is also re-introducing sleet here with accumulations over half an inch now. Seems in line with modeling but we have to see verification as the column moistens.
Initial batch of moisture was always going to have a high chance of being light snow as the colum cools with evaporational cooling kicking inUmm, I have flurries currently at my house. wtf.
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