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Pattern Fab-February 2020 The dark age

Just looked at the 18z GEFS panel. What's so amazing is that there is a 100 degree F difference in 850mb temps for the city of Chicago between the warmest and coldest two members. I don't think I have ever seen that much of a spread on the same run! What I take away from that is we don't know what will happen in the second half of Feb. Could be some arctic air or an early Spring.
 
I don't know if this is real. But regardless, I've seen better but I've also seen worse including just the prior EPS run, So, I can certainly handle this ok as it would likely lead to pleasantly low dewpoint days and finally shut off the continuous rain for while without a real torch (this is only a little AN):
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I just looked at the Ellijay snow history back to 1937-8. It is not filled in for the last 10 years or so. But for 1937-8 through 2008-9, it appears yesterday’s 6” might barely crack the top 10 heaviest single storm list! So, a big deal even up there.

I’m going to check Blairsville next. Their 6”
Looks like it may have barely cracked the top 20 since 1935-6 but am not sure.

Now Dahlonega: also may have barely made top 20 but again not sure.

Larry i've been keeping personal records since 2002 and cocorahs since 2010. The 5.5 i measured Sat was tied with 2011 for second place, with Dec 2017 being number 1 with 7 inches.
 
FWIW, the EPS continuing on to what Larry said, but the GFS has lower heights in the east but a strong +EPO again. SMH
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Alright as promised and since many of you asked for this, you shall receive. Here are updated maps for North Carolina, South Carolina, and Georgia plus a regional analysis that stitches together these maps and blends NOHRSC & other analyses from NWS WFOs (like Morristown, TN/MRX). For the statewide maps, I merged NWS Local Storm Reports, CoCoRaHS, mPING, social media, and posts on this forum to construct them. Georgia in particular took longer than both SC & NC to construct, but I hope everyone who was impacted by this storm or watched it from afar enjoys these.

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wow thanks! i struggled with wanting to turn in 6, as i heard a lot of people around me say 6 or more, but no matter how long i stared at it i couldn't turn in more than 5.5, and now that i see your map it makes me feel better, as it looks like its just east of me and going northeast that it started getting above 6. This indeed was a very rare situation where we at around 1500 feet did well compared to places like Suches that are at 3k, and I think its because they more often than not have "perfect" conditions due to elevation. In this case, we also had perfect conditions, as the cold air was already in place and sort of wedged in, and the storm was not so big and amped to overpower with a warm sector, and this small disturbance came in at the best time of day from the best angle. I even had 13 to 1 ratio, yielding 5.5 inches out of .42 precip.
 
Thanks for this Eric! May I share the image of the GA map to my Facebook weather page? (I'm sure you wouldn't mind, but I would rather ask first.) I'm curious, what program you use to make these maps?

Yeah no problem. As for what I use to make them, I use python to hone in on the area I want and produce a state or multi-state map with the desired size, dpi, & formatting.
For ex this would be a map of just GA, SC, & NC.

North Carolina, South Carolina, & Georgia Snowfall Map Blank.png



Then I use photo editing software (usually pixlr photo editor) and plot/draw every observation on the map by hand. This is labor intensive but I personally think it gives me more control over the map, I can make it look a lot prettier and more unique than what I know wrt coding, GIS, and spatial interpolation, and I simply have a lot more experience using it so I'm more familiar with the color schemes, sizes of observational points, etc.
 
Seems like all winter these models continue to show fantasy looks for the same areas smhView attachment 33772

Do yourself a favor and stop looking at the FailV3. Look at the Euro. Not saying it's perfect, because it's not, but it hasn't been showing this crazy nonsense all winter. I mean, even if the Euro showed this, I wouldn't believe it until I saw snow falling from the sky.
 
^^GIS software is great for creating maps. The largest (paid) software provider is Esri. They have a desktop and cloud platforms. The cloud platform is called ArcGIS Online (AGOL). It's basically free, but if you want to perform more advanced analysis you'll need to pay/buy credits.
Here is our AGOL homepage: https://ncdot.maps.arcgis.com/home/index.html

There are also free (open source) GIS software. QGIS is probably the best. https://www.qgis.org/en/site/
 
Yeah no problem. As for what I use to make them, I use python to hone in on the area I want and produce a state or multi-state map with the desired size, dpi, & formatting.
For ex this would be a map of just GA, SC, & NC.

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Then I use photo editing software (usually pixlr photo editor) and plot/draw every observation on the map by hand. This is labor intensive but I personally think it gives me more control over the map, I can make it look a lot prettier and more unique than what I know wrt coding, GIS, and spatial interpolation, and I simply have a lot more experience using it so I'm more familiar with the color schemes, sizes of observational points, etc.
Oh look a snow map for the rest of winter
 
Close call as I’ve been warning, especially in NC CAD area. This is the first GFS run actually showing some ZR anywhere in SE. A sign of things to come for Sunday? Stay tuned:

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12Z GEFS is signaling that trouble may be brewing in the form of ZR for the major CAD areas for Sunday, especially in NC. Keep in mind two things:
1) Anywhere under a strong wedge there’s 850s at precip onset between -2 and -5 is a guideline I’ve used well in the past to predict ZR. This GEFS shows just that in W NC and vicinity.

2) The wedge has been generally trending stronger and colder.

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12Z GEFS is signaling that trouble may be brewing in the form of ZR for the major CAD areas for Sunday, especially in NC. Keep in mind two things:
1) Anywhere under a strong wedge there’s 850s at precip onset between -2 and -5 is a guideline I’ve used well in the past to predict ZR. This GEFS shows just that in W NC and vicinity.

2) The wedge has been generally trending stronger and colder.

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Low 40s with a cold rain in NGA. It’s close.


Sent from my iPhone using Tapatalk
 
12Z GEFS is signaling that trouble may be brewing in the form of ZR for the major CAD areas for Sunday, especially in NC. Keep in mind two things:
1) Anywhere under a strong wedge there’s 850s at precip onset between -2 and -5 is a guideline I’ve used well in the past to predict ZR. This GEFS shows just that in W NC and vicinity.

2) The wedge has been generally trending stronger and colder.

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I don't like that the low tracks to the great Lakes, but the initial CAD is strong. Dew points get into the single digits in NC and teens down into SC and Ga. Maybe we can get that low to track more south or more west. Then keep the high locked more to the NE. Not asking for much...
 
Yowza... A March 1993 redux!

To go along with the cold, this 6Z CFS also has it very wet with lots of Gulf moisture due to what appears to be a nice ST jet/split flow with the strong northern stream, a perfect recipe for a major SE winter storm: The only problem is these maps may be fiction. However, I've been calling for a much colder overall SE for a 2-3 week period between 2/20 and 3/20 based on analogs but also based on what should be a more favorable MJO and AAM as opposed to any model. So........
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Is the CFS the only model seeing the cold? Hard to put a lot of faith in it since it’s always cold. Just feel like I would be seeing more cold talk if others saw it as well.

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Well, it and the Euro Bleaklies are the only ones I follow that go out that far and the last Bleakies have been mild, So the answer is "yes" from my perspective. And yes, I've often stated that the CFS, like most models, has had a significant cold bias. However, my prediction is not at all model based as I said. I first made that prediction back in January and it had nothing to do with models. As a matter of fact, the CFS was then showing a quite cold Feb, overall, which I wasn't believing and was poo pooing because it didn't fit analogs and the teles were largely headed back into the commode. I kept my cold timeframe to somewhere within 2/20-3/20.

Another thing to note is that despite the cold bias, the CFS isn't always cold. But recently, many runs have been cold for the similar timeframe with some very cold and for long periods as we're getting closer and closer to said timeframe. One more thing to note: the CFS was correct about the Nov cold.

Edit: Reminder, Bleakies out late this afternoon. If they're mainly mild, I won't let them bother me and will attribute that to the inability of the model to see that far ahead.
 
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Not in our lifetime
I really hated that 93 storm. I got ~1.5" while others to the west got dumped on. But, I think if there is going to be a year that could produce such a storm this is the year. As we get into March the predominant pattern should break down. We'll be able to get colder (quicker) shots of air into the SE (at least until mid March). I feel that type of pattern would favor miller A storms over a miller B storms. 1993 was a miller A and it went right over RDU. Wild weather, but most of the snow stayed to the west of the track.
 
I really hated that 93 storm. I got ~1.5" while others to the west got dumped on. But, I think if there is going to be a year that could produce such a storm this is the year. As we get into March the predominant pattern should break down. We'll be able to get colder (quicker) shots of air into the SE (at least until mid March). I feel that type of pattern would favor miller A storms over a miller B storms. 1993 was a miller A and it went right over RDU. Wild weather, but most of the snow stayed to the west of the track.
man no one will be prepared in the Atlanta area for something like that. It's crazy to think how most new houses don't even have fireplaces. no electricity=no heat for a lot of folks.
 
I could surely live with this: near normal/no real SER and dry sfc high pressure/NW winds. Seasonably cool days and chilly nights. Very nice!
Edit: Aside: The coldest Arctic normals are still two weeks away fwiw..

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Do yourself a favor and stop looking at the FailV3. Look at the Euro. Not saying it's perfect, because it's not, but it hasn't been showing this crazy nonsense all winter. I mean, even if the Euro showed this, I wouldn't believe it until I saw snow falling from the sky.
Even the gfs is usually only showing something like this every once in a while and rarely more then one run. I believe we’ve seen less and less fantasy storms over the years because the models have gotten better. The 2 snows I’ve received of more than a half inch this winter have been handled pretty well by the gfs and all models honestly. The NAM has seemed much improved this season also. The snow from last week, every model had me receiving between 0.8 and 1.8 inches of snow and I ended up with 1.5.
 
The new Bleaklies are bleak. Why else do they have that nickname? So, who cares? And they're actually no bleaker than the last run.
Next.... :D

Edit: Actually, 2/24-3./2 is near normal, which is colder than the prior run's AN. So, that's good to see. And don't forget that this is an extension of the 0Z run.
 
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The new Bleaklies are bleak. Why else do they have that nickname? So, who cares? And they're actually no bleaker than the last run.
Next.... :D

Edit: Actually, 2/24-3./2 is near normal, which is colder than the prior run's AN. So, that's good to see. And don't forget that this is an extension of the 0Z run.

At this point the models showing cold have mostly been flat out wrong and we have had no sustained cold temps. In my experience years like this the pattern stays relatively the same. The same can be said in years where we get repeating small snows. Indont suspect any major changes this year in my own unscientific yet experienced based outlook.

Bring on spring.
 
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