Bob Chill

6.5 with round 1 and 4.9 with round 2 so 11.4". Winding down tho so a foot prob won't happen. What a disaster.

Prob a transformer if i had to guess. Not seeing any strikes on lightningmaps.

The icing would be for the big moco-hoco deathband to hold together and rotate through DC as the pivot completes. My guess is no but every conservative guess i've made has been wrong

Afternoon moco death band(s) exceeded my wildest expectations. Incredible storm on all levels. Tracking for days and serious overperformance. Rare occurrence...

10.5" official. 4" since 3pm (very high ratio) and 10" sitting on all elevated hard surfaces. There are going to be double digit totals all over dc/nova/md burbs. Amazing. Want a foot...might happen

This upper level piece tops the entire waa piece with the fun factor.

It feels like i've been watching snow fall continuously for over 24 hours

Lol. Bad geography on my part. Outer band near front royal is pulling east now. What am amazing and extremely localized storm

Moco is getting raked. Radar looks like yellow french fries

Outer band in wv panhandle is moving east now. Turn has begun and slp off the coast is pulling away. Normally i'd say expect radar to fall apart over the next 2 hours but all bets are off on this one. This storm already broke all the rules. Why stop now?

Brings up a good question... what is DCA reporting now?

I left one out... roads caved TWICE lol

This storm broke a lot of mid atlantic rules of thumb Onset earlier than forecast Virga was minimal Models kept get better through and after onset Snowfall was unusually evenly distributed There was no parrs deathband (i feel bad for psu) Nova and DCA are jackpotting Warm air advection overperformed Upper level low qpf is higher than forecast Shutoff is later than forecast Start to finish will span 30 hours Let all that sink in for a minute...

Damn Matt, i was fully prepared to call it a wrap when it waa shut off. 6.5" was already great. Adding 2.5" and counting with this last batch is off the chain.

Hit 9" already. 2.5" since this upper level batch moved in. Compacted and settled snow on hard surfaces is 8.3". Make a run at double digits?

Give it some time. Beam is reflecting up a ways in the column. Takes some time for snow to fall thousands of feet. Lol

Nope... it's a nova/moco/dc crush job. Pushing .40 by 10pm in places. I'm skeptical of radar extrapolated models with upper level stuff. This stuff is prob going to lose dynamics/lift and lighten up in place. Right now is crazy though.

The greens in between the yellows in moco are still mod snow just with smaller flakes. I'm over 8" now and 9" is becoming more likely every time i look at radar.

Lwx 8-12" call is going to verify in a lot of places.

100% and they will announce before 10pm.

18z nams are going to bust low west of DC. Icon has done very well with this event.

Yea, that part is atypical. I'm over 7.5" and it's still inch an hour rates. This stuff has to be close to 15:1

Yea man, it's dumping again. 8" is within the realm for sure. Love how the streets and sidewalks folded instantly like the chargers.

This is what happens with a 2 part storm. You havent experienced one yet but we get them. Feb 2014 had a nice one where i got 13" with the waa piece then big lull followed up by 3.25" in 2 hours as the upper level energy rolled through. The best part about upper level energy is it's unstable air with great snow growth. Bursts of heavy high ratio stuff like you're seeing right now.

This sure looks like the real deal. All global ens and longer range weeklies/seasonal guidance shows the exact same thing... a big red ball over Greenland with a strong signal for a west based neg nao and neg ao. Previous blocking episodes like the one being advertised last between 30-60 days with the average around 45. It will wax and wane over longer timescales but if it forms, expect it to stay. This isn't looking like a phantom digital block. If things change i'll post about it. Keep an eye on the western atlantic ridge. That's the feature that throws a wrench in next weekend but it's all part of a large scale process. The atlantic ridge should move into the nao region after next weekend.