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Jan 21 event


Ian

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because the National Weather Service and the Capital Weather Gang are 2 separate entities.

NWS is going to wait until the 3pm forecast I guess. Remember, WaPo doesn't determine warnings/advisories.

I'd guess warnings will go up for the watch area and advisories elsewhere.

Yea I know they are not one in the same. I guess in the past I had remembered the NWS issuing earlier. No biggie was just wondering. :)

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Winter Weather Advisory for NW Suburbs of Baltimore & DC:

MDZ004>007-009>011-VAZ042-501-210200-

/O.NEW.KLWX.WW.Y.0006.120121T0400Z-120121T1800Z/

FREDERICK MD-CARROLL-NORTHERN BALTIMORE-HARFORD-MONTGOMERY-HOWARD-

SOUTHERN BALTIMORE-LOUDOUN-NORTHERN FAUQUIER-

INCLUDING THE CITIES OF...FREDERICK...WESTMINSTER...

GAITHERSBURG...COLUMBIA...BALTIMORE...LEESBURG...WARRENTON

100 PM EST FRI JAN 20 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO

1 PM EST SATURDAY...

THE NATIONAL WEATHER SERVICE IN BALTIMORE MD/WASHINGTON HAS

ISSUED A WINTER WEATHER ADVISORY FOR SNOW...SLEET AND FREEZING

RAIN...WHICH IS IN EFFECT FROM 11 PM THIS EVENING TO 1 PM EST

SATURDAY.

* PRECIPITATION TYPE...SNOW...SLEET AND FREEZING RAIN.

* ACCUMULATIONS...ONE TO TWO INCHES OF SNOW AND SLEET. AROUND TWO

TENTHS INCH OF ICE ACCUMULATION FROM FREEZING RAIN.

* TIMING...PRECIPITATION WILL MIX WITH FREEZING RAIN LATE TONIGHT

BEFORE CHANGING TO ALL FREEZING RAIN SATURDAY MORNING.

PRECIPITATION WILL END BY EARLY SATURDAY AFTERNOON.

* TEMPERATURES...LOW TEMPERATURES IN THE MID TO UPPER 20S TONIGHT.

HIGHS SATURDAY IN THE MID TO UPPER 30S.

* WINDS...EAST 5 TO 10 MPH BECOMING NORTH SATURDAY.

* IMPACTS...SIGNIFICANT WINTRY PRECIPITATION WILL CAUSE DANGEROUS

TRAVELING CONDITIONS LATE THIS EVENING THROUGH SATURDAY

MORNING. ICE WILL ACCUMULATE ON TREES AND POWERLINES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR

FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR

SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE

DRIVING.

&&

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.15 seems really light but .50+ seems kinda heavy considering the strength of the system. It's not really all that impressive.

.25 - .50 seems like a fair range all things considered. I guess it also depends of how long it takes to saturate the column too. It's awful dry out there.

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devastation!!!

Kinda surprised though that the far NW corner of LWX didn't go WSW... guess more sleet/snow than ice

they'll probably wait till it's an hour from finishing to hoist the warnings

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