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1/23-24 clipper


Ian

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Although seperated by 50 miles, trajectory of the incoming precip seemed to align my area with IAD area.  I can confirm 1.75" IMBY measured at 3 separate flat spots.  36:1 ratio seems dubious; maybe there is error with the liquid measurment?  It was very cold and the snow is exceptionally light and powdery though....

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I had a solid 1.5" inches of snow from .07", more than a 20-1 ratio.  So did Buzz Burek another retired NCEP met who lives 2 miles southeast of me. 

 

Also, measuring fluff at 11:30 when the snow ended hours ago just doesn't work as it settles alot. If it's 0.50 inches now it probably a couple of tenths higher earlier. 

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I had a solid 1.5" inches of snow from .07", more than a 20-1 ratio.  So did Buzz Burek another retired NCEP met who lives 2 miles southeast of me. 

 

Also, measuring fluff at 11:30 when the snow ended hours ago just doesn't work as it settles alot. If it's 0.50 inches now it probably a couple of tenths higher earlier. 

Can you imagine if we had a legit wet system dumping 1-2'' QPF in this airmass!?  :weenie:

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I had a solid 1.5" inches of snow from .07", more than a 20-1 ratio.  So did Buzz Burek another retired NCEP met who lives 2 miles southeast of me. 

 

Also, measuring fluff at 11:30 when the snow ended hours ago just doesn't work as it settles alot. If it's 0.50 inches now it probably a couple of tenths higher earlier. 

 

Are we supposed to trust you and Buzz Burek, you were probably the guys issuing the winter storm watches when we were only getting 3 flakes :). I hate those NCEP mets, they have no clue what they are doing. Heck we should just disband the NWS according to half the people here :axe: . Heck plenty of people yesterday were making fun of the WWA advisory and it was definitely warranted. I would hate to be an NCEP met, all the criticism when they are wrong but none of the glory when they are right 90% of the time.

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Are we supposed to trust you and Buzz Burek, you were probably the guys issuing the winter storm watches when we were only getting 3 flakes :). I hate those NCEP mets, they have no clue what they are doing. Heck we should just disband the NWS according to half the people here :axe: .

 

Buzz was one of the guys that made sure the models were running on time and tracked down problems.  Another Met Frank Rosenstein had similar ratios in Waldorf.  Fluffy snows are great but rarely happen here when you get a true noreaster.  There usually is too much cloud water involved so you have some riming. 

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Buzz was one of the guys that made sure the models were running on time and tracked down problems.  Another Met Frank Rosenstein had similar ratios in Waldorf.  Fluffy snows are great but rarely happen here when you get a true noreaster.  There usually is too much cloud water involved so you have some riming. 

In general, what ratios are attained in our "cold" coastals (i.e., 02/2003, 01/1996, 12/2009)?

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I ended up at 1.5", so I could see Dulles being adjusted down a little bit.

Do they ever adjust totals? I know a few times where it was found that measurement protocols were not followed and they were revised, but those were during big storms.

I thought it was a little high too, because my location is usually similar to IAD and it was more like an inch where I am.

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DCA's seasonal snow total is now 0.6 inches, leaving it 1.4 inches behind last season's final total. On the other hand, IAD's seasonal snow total is now 4.0 inches, leaving it 0.3 inches ahead of last season's final total.

Apparently, the Dulles total has been revised down to 1.2 inches for this storm -- http://www.erh.noaa.gov/lwx/events/snowmaps -- so, that would bring IAD's seasonal snow total down to 3.4 inches, leaving it 0.3 inches behind last season's final total. Also, the revision would bring down the IAD snow/precipitation ratio for this storm to 24 to 1.
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IAD - 1.5"

BWI - 2.0"

DCA -0.4"

 

 

I posted this on LWX's facebook wall:

 

DCA measurements are really embarrassing year after year. I realize the FAA is responsible, but since they are official, how long are we going to sit back and just accept the incompetence? Can we refuse to certify these totals? I had 0.9" in Old Town right on the water. You look at other surrounding measurements and it is almost inconceivable that DCA got only 0.4". This was a cold storm for everyone. Even if they got only 0.03" of liquid which is doubtful, only 13:1 ratios?...when everyone got much higher?...seasoned meteorologists south and east of DC got 20:1+ ratios. I realize Sterling isn'r responsible, but I think it is time you all stepped up and did something since this is official data.

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I posted this on LWX's facebook wall:

DCA measurements are really embarrassing year after year. I realize the FAA is responsible, but since they are official, how long are we going to sit back and just accept the incompetence? Can we refuse to certify these totals? I had 0.9" in Old Town right on the water. You look at other surrounding measurements and it is almost inconceivable that DCA got only 0.4". This was a cold storm for everyone. Even if they got only 0.03" of liquid which is doubtful, only 13:1 ratios?...when everyone got much higher?...seasoned meteorologists south and east of DC got 20:1+ ratios. I realize Sterling isn'r responsible, but I think it is time you all stepped up and did something since this is official data.

Well said. I hope they give it consideration.

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Well said. I hope they give it consideration.

From what I understand they have looked into it. Obs will be taken at national either way for safety but they could take obs from somewhere within 5 miles. I think one problem is needing two full time observers.

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