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January 5-6 Thing Storm Obs


snowfan
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4 minutes ago, WhiteoutMD said:

6.7 in Annapolis :snowing:

I just measured exactly 7 inches in Annapolis. That was my first time making it outside today, so there may have been a little compaction as well. Hoping to squeeze another inch out of the first part of the storm and then get another 2 inches tonight to top double digits

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2 minutes ago, mattie g said:

No doubt places north got the shaft. All the talk of the usual north ticks near the end did kind of happen, but ground truth looks to not have followed suit.

Ya it ticked north, all the way up into central pa haha 

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1 minute ago, DDweatherman said:

Anyone that entrusts in the long range HRRR doesn't see what its capable of in the convective season. I've seen it wrong by a lot at hour 3

HRRR is better than probably any other operational model at nailing bow echo/MCS structure and propagation after these things have already initiated. It's pretty much what it was designed for and the way it assimilates radar reflectivity is very different from models like the NAM or globals for that matter. It has a wheelhouse

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1 minute ago, LordBaltimore said:

HRRR is better than probably any other operational model at nailing bow echo/MCS structure and propagation after these things have already initiated. It's pretty much what it was designed for and the way it assimilates radar reflectivity is very different from models like the NAM or globals for that matter. It has a wheelhouse

I'd agree with this very much. That's its actual purpose. It's a mesoscale focused model thru and thru.  

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2 minutes ago, North Balti Zen said:

up to a jaw-dropping total of 2.5".   Props to all the "you all always cash in up that way" posters. Six years of being wrong with that thought and counting...

It's probably my fault...because of my location on top of one of the highest points in east central MD right along the PA border I often do disproportionately well in very marginal events, like the 4" I got in November when even places right around me a few miles away barely got an inch!  This probably gives a false sense to the board that this area up here has done better than it has recently in general.  Only the very highest ridges up here have actually done ok, I feel really bad for places just south of me or in some of the valleys up here who have had it really bad recently.  They have not cashed in like me in the marginal temp storms and they have missed all the coastal or slider storms to the south.  The worst screw zone wrt averages in our region, which as a whole hasn't done well recently, has been that area.  

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6 minutes ago, DDweatherman said:

Anyone that entrusts in the long range HRRR doesn't see what its capable of in the convective season. I've seen it wrong by a lot at hour 3

HRRR is .10 or so of qpf for the ULL. I guess we could grab another inch or so but I'm certainly not counting on it. HRRR was awful for northern MD.

Euro really nailed it the past 48 hours. Generally had my area between .3 and .4 qpf. Looks like that's going to be pretty accurate. 

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Straight up puking potato chips from the sky in Easton.  Easily over 1" per hour stuff.  Just got back from a joyride in the truck and it put down a fresh inch on the driveway in 40 minutes.

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Just now, psuhoffman said:

It's probably my fault...because of my location on top of one of the highest points in east central MD right along the PA border I often do disproportionately well in very marginal events, like the 4" I got in November when even places right around me a few miles away barely got an inch!  This probably gives a false sense to the board that this area up here has done better than it has recently in general.  Only the very highest ridges up here have actually done ok, I feel really bad for places just south of me or in some of the valleys up here who have had it really bad recently.  They have not cashed in like me in the marginal temp storms and they have missed all the coastal or slider storms to the south.  The worst screw zone wrt averages in our region, which as a whole hasn't done well recently, has been that area.  

You said it well, the corridor along 70 east of the Catoctins up through Westminster proper and across to say Hunt Valley and north have been the worst off relative to their averages. Even in my area, the November storm was rain/snow mix 3 miles from me, 1" a couple streets down, but 2.5" up here at 900ft. 

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4 minutes ago, 87storms said:

HRRR is fed in part by radar trends.  Watch it start to look better once the remaining energy enters the region.

Calling for about 3" from the afternoon blast.  Probably cut that in half realistically.  

hrrr_asnowd_neus_fh6-16.gif

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1 minute ago, clskinsfan said:

You will have more come through in a couple hours. These bands out here are doing some work.

Just need them oriented towards me. I know we'll get at least some snow on the back end, but I'm always a little concerned about subsidence between bands and that kind of thing, so I'm a little jumpy. :lol:

As I'm typing this, a little enhancement just popped up on radar near me. Would love to see that expand/fill in...

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4 minutes ago, psuhoffman said:

It's probably my fault...because of my location on top of one of the highest points in east central MD right along the PA border I often do disproportionately well in very marginal events, like the 4" I got in November when even places right around me a few miles away barely got an inch!  This probably gives a false sense to the board that this area up here has done better than it has recently in general.  Only the very highest ridges up here have actually done ok, I feel really bad for places just south of me or in some of the valleys up here who have had it really bad recently.  They have not cashed in like me in the marginal temp storms and they have missed all the coastal or slider storms to the south.  The worst screw zone wrt averages in our region, which as a whole hasn't done well recently, has been that area.  

12z Gfs says some N MD love from u/l low. Of course, I'm just a wee bit north.

 

snku_acc-imp.us_state_de_md (16).png

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1 minute ago, JenkinsJinkies said:

Looks like it’ll be all snow for the bulk of us. Remember when it was forecast to briefly transition to a mix?

Definitely had some sleet mixing into the earlier bands from DC south, so that was not wrong fully. It just never was the extent the NAM had projected it to be 

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