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The Psuhoffman Storm


Ji

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  On 1/25/2011 at 6:09 PM, Kmlwx said:

DT just went 3-6ish in DC proper - 6-12 not far to the north and west.

seems like a pretty good call for now. im fairly convinced we'll get 3-6 here at least.

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  On 1/25/2011 at 6:01 PM, Quasievil said:

For those close to or east of the bay this east trend with the 0c line is encouraging but still think it makes us borderline until the ULL really gets going. Should hold down our accumulations there. And YES .. that's an IMBY post (I live in Annapolis) but there are many others on the eastern shore who want to know too.

Haven't had to much time to sift through every post. How does Elkton do per the 12z runs, just a guess would suffice.Thx

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Weenies rejoice. Then please take it to the obs thread.

URGENT - WINTER WEATHER MESSAGE

NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC

109 PM EST TUE JAN 25 2011

DCZ001-MDZ010-011-013-014-016>018-VAZ036>039-050>057-502-260215-

/O.EXB.KLWX.WS.A.0002.110126T1900Z-110127T0900Z/

DISTRICT OF COLUMBIA-HOWARD-SOUTHERN BALTIMORE-PRINCE GEORGES-

ANNE ARUNDEL-CHARLES-ST. MARYS-CALVERT-NELSON-ALBEMARLE-GREENE-

MADISON-ORANGE-CULPEPER-PRINCE WILLIAM/MANASSAS/MANASSAS PARK-

FAIRFAX-ARLINGTON/FALLS CHURCH/ALEXANDRIA-STAFFORD-SPOTSYLVANIA-

KING GEORGE-SOUTHERN FAUQUIER-

INCLUDING THE CITIES OF...WASHINGTON...COLUMBIA...BALTIMORE...

ANNAPOLIS...WALDORF...ST MARYS CITY...CHARLOTTESVILLE...

CULPEPER...MANASSAS...MANASSAS PARK...FAIRFAX...ALEXANDRIA...

FALLS CHURCH...FREDERICKSBURG

109 PM EST TUE JAN 25 2011

...WINTER STORM WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH

LATE WEDNESDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN BALTIMORE MD/WASHINGTON HAS

ISSUED A WINTER STORM WATCH...WHICH IS IN EFFECT FROM WEDNESDAY

AFTERNOON THROUGH LATE WEDNESDAY NIGHT.

* PRECIPITATION TYPE...BECOMING ALL SNOW DURING LATE AFTERNOON AND

EVENING.

* ACCUMULATIONS...5 OR MORE INCHES OF SNOW POSSIBLE.

* TIMING...SNOW STARTING DURING THE LATE AFTERNOON AND EARLY

EVENING. ENDING AFTER MIDNIGHT FROM SOUTHWEST TO NORTHEAST

WEDNESDAY NIGHT.

* TEMPERATURES...MID TO UPPER 30S WEDNESDAY...DROPPING TO THE

LOWER 30S BY THE EVENING. THE UPPER 20S WEDNESDAY NIGHT.

* WINDS...NORTHEAST 10 TO 15 MPH WEDNESDAY...BECOMING NORTHWEST

AROUND 15 MPH WEDNESDAY EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT

SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.

CONTINUE TO MONITOR THE LATEST FORECASTS.

&&

$$

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  On 1/25/2011 at 6:09 PM, FiveAlarmPhotography said:

Please stop posting IMBY posts!!

Actually my post is more or less comparing the variation between the NAM, EURO and GFS.

The NAM puts the heaviest snow just East of DC and the EURO and GFS slighly west.

Which is better in this timeframe?

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At this point its going to be tough to narrow down where the heaviest band is going to set up. We have one model insisting its south east of DC, we have another saying its west/northwest. I think the best guess is probably out towards Dulles but at this point it will be really hard to narrow down the details given the slight model divergence.

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  On 1/25/2011 at 6:14 PM, yoda said:

Excellent consistency among the models. About time we have that this winter! The details that need to be ironed out are the ones that are the hardest to forecast...banding, possible convection, snow crystal growth, etc...

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  On 1/25/2011 at 6:20 PM, winterwxluvr said:

Since I can never see the Euro, it's not always easy to try and compare it to the others. So, someone who can see it, how does its qpf compare to that of the GFS? I can see most others. Come to think of it, I'd also like to know how the UK compares to the GFS.

UKMET was posted by Yoda just above. It's on ewall. Looks like a good hit.

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  On 1/25/2011 at 6:19 PM, PhineasC said:

Meh... fringed and red flag.

too bad west always does better than east. i expect the banding to shift from my southeast to leesburg's house without even considering stopping over my head.

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  On 1/25/2011 at 6:22 PM, Ian said:

too bad west always does better than east. i expect the banding to shift from my southeast to leesburg's house without even considering stopping over my head.

I'm sure leesburg will do better and somehow manchester or somewhere near there will become the new snow capital of the east.

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  On 1/25/2011 at 6:23 PM, usedtobe said:

I'm sure leesburg will do better and somehow manchester or somewhere near there will become the new snow capital of the east.

maybe vortmax will chime in at some pt

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HiRes WRFs like the NAM's idea of having the precip max south/east of the I-95 corridor. 850 temps look as cold or colder than the globals and NAM. Precip in the cities looks comparable to the consensus, but less than the consensus to the north of the cities.

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