My OperaLOOK AT THE GFS FROM 3 DAYS AGO WHEN I FIRST TOLD EVERYONE 2 TO 4 GRASSY INCHES OF SNOW WITH MOSTLY WET ROADS FOR SATURDAY !!!
Saturday, December 5, 2009 3:45:34 AM
THE NATIONAL WEATHER SERVICE HAS ISSUED A WINTER WEATHER ADVISORY FOR THE BALTIMORE AREA FROM 700 AM UNTIL 900 PM ON SATURDAY TONIGHT: CLOUDY BUT RATHER BREEZY AND VERY COLD WITH SNOW SHOWERS POSSIBLE IN SOME AREAS TOWARD DAWN AS LOWS HOVER NEAR FREEZING LO: 30
SATURDAY: CLOUDY BUT BREEZY AND VERY COLD WITH SNOW THAT MAY BECOME HEAVY AT TIMES DURING THE LATE AFTERNOON AND EARLY EVENING HOURS WITH TOTALS RANGING FROM 2 TO 4 INCHES WEST OF THE BAY BUT MOSTLY ON GRASSY SURFACES AS SOME SLICK SLUSHY CONDITIONS MAY DEVELOP AFTER DARK ON LESS TRAVELED ROADWAYS WHERE THE CHANCE FOR THE SLUSHY REFREEZE IS HIGHEST LO: 32 HI: 36
SUNDAY: PARTLY CLOUDY EARLY AND MOSTLY SUNNY LATER ON BUT BREEZY AND VERY COLD LO: 26 HI: 40
MONDAY: PARTLY CLOUDY BUT NOT AS COLD LO: 30 HI: 44
TUESDAY: PARTLY TO MOSTLY CLOUDY AND COOL WITH A CHANCE FOR SOME LIGHT RAIN AND OR WET SNOW IN SOME AREAS AFTER MIDNIGHT BEFORE A STEADY PLAIN RAIN STARTS TO OVERSPREAD THE ENTIRE AREA DURING THE DAY ON WEDNESDAY LO: 34 HI: 48
WEDNESDAY: CLOUDY AND VERY COOL WITH SOME RAIN AND WET SNOW POSSIBLE EARLY THEN JUST PLAIN RAIN ALL DAY AS RAIN TOTALS NEAR ONE HALF OF AN INCH LO: 38 HI: 48
"WEATHER OR NOT"
FORECASTER: SCHLEY
** NO CURRENT ADVISORY IN EFFECT **blazin3596 # Saturday, December 5, 2009 3:51:48 AM
Statement as of 2:17 PM EST on December 04, 2009
... Winter Weather Advisory in effect from 7 am to 9 PM EST
Saturday...
The National Weather Service in Sterling Virginia has issued a
Winter Weather Advisory for snow... which is in effect from 7 am
to 9 PM EST Saturday.
Snow is expected to begin in the Washington DC and Baltimore areas around
sunrise Saturday. Moderate to heavy snowfall is expected Saturday
afternoon. 1 to 2 inches of snow is expected to accumulate before
tapering off during the evening. Temperatures during the day will
be in the upper 30s.
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.
Sk/aw
** NO CURRENT ADVISORY IN EFFECT **blazin3596 # Sunday, December 6, 2009 3:31:08 AM
Statement as of 8:48 PM EST on December 05, 2009
... Icy conditions possible overnight into early Sunday...
Temperatures will fall into the 20s across the mid Atlantic region
tonight. Even though precipitation has ended across the area... any
water from snow melt and slush from saturdays storm is expected
to freeze... forming areas of black ice.
Any roadways... bridges and overpasses... and sidewalks that have
not been treated may become very slippery and dangerous. Please
use extra caution overnight into early Sunday morning and be
aware of the potential to encounter icy conditions.
Peloquin
** NO CURRENT ADVISORY IN EFFECT **blazin3596 # Sunday, December 6, 2009 3:31:56 AM
Statement as of 10:13 PM EST on December 05, 2009
The following are unofficial observations taken during the past 26 hours
for the storm that has been affecting our region. Appreciation is extended
to Highway departments... cooperative observers... Skywarn spotters
and media for these reports. This summary is also available on our
home Page at weather.Gov/Baltimore
********************storm total snowfall********************
Location storm total time/date comments
snowfall of
/inches/ measurement
Maryland
... Allegany County...
Frostburg 6.0 730 PM 12/05
Eckhart Mines 5.5 545 PM 12/05
Mount Savage 1 ENE 4.0 130 PM 12/05
... Anne Arundel County...
Gambrills 1 NW 2.5 800 PM 12/05
Odenton 1 WSW 2.5 345 PM 12/05
Glen Burnie 2.2 350 PM 12/05
Pasadena 2.0 745 PM 12/05
Millersville 2.0 1225 PM 12/05
parole 1 NNW 0.8 400 PM 12/05
... Baltimore County...
Woodlawn 1 WSW 5.0 400 PM 12/05
Glyndon 1 ESE 4.8 900 PM 12/05
Owings Mills 4.0 600 PM 12/05
McDonogh 1 SW 4.0 232 PM 12/05
Hampton 1 W 2.3 600 PM 12/05
... Calvert County...
Huntingtown 2.3 950 PM 12/05
Prince Frederick 1 W 0.5 310 PM 12/05
... Carroll County...
Eldersburg 2 NW 7.5 600 PM 12/05
Lineboro 2 E 6.5 724 PM 12/05
Sykesville 6.2 700 PM 12/05
Westminster 6.0 500 PM 12/05
Taneytown 1 NE 2.5 530 PM 12/05
... Charles County...
Waldorf 2.0 745 PM 12/05
Dentsville 1 SW 1.3 600 PM 12/05
... Frederick County...
New Market 3.5 815 PM 12/05
Wolfsville 3.0 1103 am 12/05
Point of Rocks 1.2 100 PM 12/05
... Harford County...
Norrisville 7.0 900 PM 12/05
Darlington 3 S 3.0 837 PM 12/05
Scarboro 2 E 2.0 227 PM 12/05
... Howard County...
Columbia 2 N 3.9 700 PM 12/05
Laytonsville 5 N 3.5 200 PM 12/05
Savage 1 N 1.5 100 PM 12/05
Elkridge 2 W 1.5 215 PM 12/05
... Montgomery County...
Damascus 2 WSW 7.3 645 PM 12/05
Clarksburg 7.0 632 PM 12/05
Olney 2 NW 6.0 650 PM 12/05
Laytonsville 4 N 5.5 700 PM 12/05
Brookeville 4.5 400 PM 12/05
Gaithersburg 4.0 230 PM 12/05
North Potomac 1 ESE 4.0 941 PM 12/05
Norbeck 1 se 3.5 600 PM 12/05
Derwood 1 NE 3.0 500 PM 12/05
Germantown 3.0 500 PM 12/05
... Prince Georges County...
Bowie 1 E 2.3 500 PM 12/05
Bowie 2 NNW 1.1 245 PM 12/05
Forest Heights 1 SSE 0.5 200 PM 12/05
... Washington County...
rohersville 2 W 4.0 930 PM 12/05
Hancock 3.8 518 PM 12/05
Keedysville 2 E 2.5 132 PM 12/05
Hagerstown 1 E 1.2 545 PM 12/05
Virginia
... Arlington County...
Baileys Crossroads 1 2.3 500 PM 12/05
Reagan National airp 0.1 403 PM 12/05
... Augusta County...
Greenville 3 E 9.0 930 PM 12/05
Weyers Cave 6.8 600 PM 12/05
Fishersville 1 NNE 5.5 445 PM 12/05
Churchville 4 NNW 5.5 415 PM 12/05
... City of Charlottesville...
Charlottesville 1.5 100 PM 12/05
... City of Fairfax...
Fairfax 3.8 450 PM 12/05
... City of Harrisonburg...
Harrisonburg 8.3 545 PM 12/05
Keezletown 2 W 5.5 1215 PM 12/05
... City of Waynesboro...
Waynesboro 5.0 225 PM 12/05
... Clarke County...
Berryville 1 NW 5.0 330 PM 12/05
Berryville 2 NE 3.9 515 PM 12/05
... Fairfax County...
Centreville 6.2 620 PM 12/05
Reston 2 N 5.8 812 PM 12/05
Vienna 5.0 405 PM 12/05
Herndon 5.0 530 PM 12/05
Fairfax 2 WNW 4.5 700 PM 12/05
Fairfax Station 1 nn 3.5 400 PM 12/05
Dunn Loring 1 NE 3.0 240 PM 12/05
North Springfield 2.0 400 PM 12/05
... Fauquier County...
Marshall 5.2 745 PM 12/05
Opal 4.0 719 PM 12/05
... Frederick County...
Wilde Acres 1 N 8.0 452 PM 12/05
High View 1 S 7.0 310 PM 12/05
Winchester 2 SSW 6.0 439 PM 12/05
Winchester 5 NNE 4.5 400 PM 12/05
Stephens City 2 E 4.5 357 PM 12/05
Middletown 3.7 400 PM 12/05
Winchester 1 S 3.5 423 PM 12/05
Whitacre 1 ESE 2.0 700 PM 12/05
... Highland County...
Mustoe 8.0 330 PM 12/05
... Loudoun County...
Bluemont 6.0 315 PM 12/05
Ashburn 2 W 5.9 645 PM 12/05
Hamilton 6.0 345 PM 12/05
Purcellville 1 N 3.2 100 PM 12/05
Ashburn 1 NE 3.0 215 PM 12/05
Leesburg 1 S 3.0 700 PM 12/05
... Madison County...
Haywood 3.5 230 PM 12/05
Big Meadows 1.0 700 am 12/05
... Page County...
Stanley 1 WSW 7.0 730 PM 12/05
Panorama 2 SW 6.0 337 PM 12/05
Luray 5.2 530 PM 12/05
Luray 2 S 4.5 513 PM 12/05
Fairview 4.2 1238 PM 12/05
... Prince William County...
Woolsey 3 NNW 6.5 725 PM 12/05
Manassas 1.4 1125 am 12/05
... Rappahannock County...
Panorama 4.0 142 PM 12/05
... Rockingham County...
Grottoes 8.0 900 PM 12/05
Elkton 5.5 643 PM 12/05
... Shenandoah County...
Maurertown 3 E 3.5 300 PM 12/05
... Warren County...
Linden 2 N 8.3 700 PM 12/05
Front Royal 1 ENE 6.0 330 PM 12/05
Howellsville 1 ENE 5.8 353 PM 12/05
West Virginia
... Berkeley County...
Bunker Hill 1 WNW 4.3 600 PM 12/05
... Grant County...
Bayard 7.8 309 PM 12/05
... Hampshire County...
Romney 3 W 5.0 500 PM 12/05
Romney 5.0 100 PM 12/05
... Hardy County...
Moorefield 11 N 7.0 407 PM 12/05
... Jefferson County...
Bloomery 3 ESE 5.2 115 PM 12/05
Shenandoah Junction 3.8 500 PM 12/05
Charles Town 2.0 1204 PM 12/05
... Mineral County...
Ridgeley 1 WSW 7.0 200 PM 12/05
Keyser 6.5 406 PM 12/05
Fort Ashby 3.0 1244 PM 12/05
... Pendleton County...
Cherry Grove 6 WSW 8.0 238 PM 12/05
Franklin 1 E 6.0 245 PM 12/05
** NO CURRENT ADVISORY IN EFFECT **blazin3596 # Monday, December 7, 2009 5:50:07 AM
Statement as of 9:24 PM EST on December 06, 2009
... Patchy black ice overnight...
With temperatures in the 20s overnight... expect any melted snow
and slush from yesterdays storm to re-freeze. This will allow
patches of black ice to form overnight.
The most susceptible areas will be untreated secondary
roads... parking lots and sidewalks. Use extra caution if
venturing out overnight and be alert to the possibility of
encountering patches of black ice.
Peloquin
** NO CURRENT ADVISORY IN EFFECT **blazin3596 # Tuesday, December 8, 2009 3:55:02 PM
Statement as of 10:09 AM EST on December 08, 2009
... Flood Watch in effect from this evening through Wednesday
morning...
The National Weather Service in Sterling Virginia has issued a
* Flood Watch for portions of Maryland... the District of
Columbia and Virginia... including the following areas... in
Maryland... Anne Arundel... Calvert... Carroll... Charles...
Frederick MD... Harford... Howard... Montgomery... northern
Baltimore... Prince Georges... southern Baltimore and St. Marys.
The District of Columbia. In Virginia... Albemarle...
Arlington/Falls Church/Alexandria... Culpeper... Fairfax...
Fauquier... Greene... King George... Loudoun... Madison... Nelson...
Orange... Prince William/Manassas/Manassas Park...
Rappahannock... Spotsylvania and Stafford.
* From this evening through Wednesday morning
* a strong low pressure will affect the area tonight. Although
precipitation may begin as a wintry mix this evening... warmer
temperatures aloft will change the precipitation to rain
tonight... with an extended period of moderate to heavy rain
expected. Widespread rainfall amounts of 1 to 2 inches are
forecast... with some totals of up to 3 inches
possible... particularly east of Interstate 95. The rain will
help to further melt existing snow on the ground in some
areas... adding to the amount of runoff. Rainfall of this amount
will be capable of causing flooding of urban areas... small
streams... and other poor drainage and lying areas.
Precautionary/preparedness actions...
A Flood Watch means there is a potential for flooding based on
current forecasts.
You should monitor later forecasts and be alert for possible
flood warnings. Those living in areas prone to flooding should be
prepared to take action should flooding develop.
Sbk
** NO CURRENT ADVISORY IN EFFECT **blazin3596 # Thursday, December 10, 2009 4:15:44 AM
COASTAL FLOOD ADVISORY NOW IN EFFECT
UNTIL 7 AM EST THURSDAY
Coastal Hazard Message
National Weather Service Baltimore MD/Washington DC
316 PM EST Wed Dec 9 2009
District Of Columbia-Harford-Southern Baltimore-Prince Georges-
Anne Arundel-Charles-St. Marys-Calvert-
Prince William/Manassas/Manassas Park-Fairfax-
Arlington/Falls Church/Alexandria-Stafford-King George-
316 PM EST Wed Dec 9 2009
...Coastal Flood Advisory Now In Effect Until 7 AM EST Thursday...
The Coastal Flood Advisory Is Now In Effect Until 7 AM Est
Thursday.
Strong Southerly Winds Have Allowed Water To Surge Up The
Chesapeake Bay And Tidal Potomac. This Combined With Runoff From
Widespread Rainfall Overnight Will Allow For Water Levels To
Remain Two Feet Above Normal Levels During High Tide. This Will
Cause Minor Tidal Flooding.
Here Are The Times Of The Next High Tides
For A Few Locations From North To South...
On The Chesapeake Bay...
Havre De Grace...3:46 PM And 3:57 AM...
Fort Mchenry Baltimore...12:44 AM...
Annapolis U.S. Naval Academy...11:14 PM...
Solomons Island...8:06 PM...
Point Lookout...7:16 PM...
Now Along The Potomac River...
Alexandria...2:38 AM...
Indian Head...2:06 AM...
Goose Bay...10:12 PM...
Wicomico River Near Cobb Island...6:00 PM And 6:53 AM...
** NO CURRENT ADVISORY IN EFFECT **blazin3596 # Sunday, December 20, 2009 7:24:05 PM
PNSWSH
SERVICE CHANGE NOTICE 09-52
NATIONAL WEATHER SERVICE HEADQUARTERS WASHINGTON DC
315 PM EST FRI DEC 4 2008
TO: SUBSCRIBERS:
-FAMILY OF SERVICES
-NOAA WEATHER WIRE SERVICE
-EMERGENCY MANAGERS WEATHER INFORMATION NETWORK
-NOAAPORT
OTHER NWS PARTNERS...AND NWS EMPLOYEES
FROM: ELI JACKS
CHIEF...FIRE AND PUBLIC WEATHER SERVICES BRANCH
SUBJECT: NATIONAL CHANGE IN MINIMUM HAIL SIZE CRITERION
FOR ISSUING SEVERE THUNDERSTORM WARNING /SVR/
AND SEVERE WEATHER STATEMENT SVS/ PRODUCTS
EFFECTIVE JANUARY 5 2010
EFFECTIVE TUESDAY JANUARY 5 2010 AT 0001 COORDINATED UNIVERSAL TIME
/UTC/...ALL NWS WEATHER FORECAST OFFICES /WFOS/ WILL OPERATIONALLY
CHANGE THE MINIMUM HAIL SIZE CRITERION USED TO ISSUE SEVERE
THUNDERSTORM WARNING /SVR/ AND SEVERE WEATHER STATEMENT /SVS/
PRODUCTS FROM 3/4 INCH /PENNY/ DIAMETER OR LARGER HAIL TO 1 INCH
/QUARTER/ DIAMETER OR LARGER HAIL.
NO CHANGE IS BEING MADE TO THE SVR AND SVS PRODUCT WIND CRITERION
OF WIND GUSTS EQUAL TO OR IN EXCESS OF 50 KNOTS /58 MPH/.
A PUBLIC INFORMATION STATEMENT /PNS/ SOLICITING COMMENTS REGARDING
THIS CHANGE WAS ISSUED SEPTEMBER 23 2009 /USE LOWERCASE/:
NWS RECEIVED 63 COMMENTS IN RESPONSE TO THE PNS...54 OF WHICH /86
PERCENT/ SUPPORTED THIS CHANGE. A WEB PAGE WILL BE CREATED TO
ADDRESS ALL COMMENTS SINCE SOME COMMENTS INDICATED A NEED FOR
ADDITIONAL OUTREACH. THIS WEB PAGE WILL BE AVAILABLE BY DECEMBER 15
2009 AND WILL BE PUBLICIZED VIA ANOTHER PNS.
NWS REVIEWED ALL COMMENTS BEFORE DECIDING TO CHANGE MINIMUM HAIL
SIZE CRITERION FOR SVR AND SVS PRODUCTS.
CENTRAL AND WESTERN REGION WFOS CURRENTLY ISSUE SVR AND SVS
PRODUCTS EXPERIMENTALLY USING THE 1 INCH /QUARTER/ DIAMETER OR
LARGER HAIL SIZE CRITERION /USE LOWER CASE/:
AND
THESE WFOS WILL CONTINUE TO ISSUE 1 INCH /QUARTER/ HAIL SIZE
CRITERION PRODUCTS EXPERIMENTALLY THROUGH JANUARY 4 2010. ALL NWS
WFOS WILL ADOPT THE NEW CRITERION OPERATIONALLY ON JANUARY 5 2010.
FOR FURTHER INFORMATION REGARDING THIS CHANGE PLEASE CONTACT:
JOHN T FERREE
FIRE AND PUBLIC WEATHER SERVICES BRANCH
120 DAVID L. BOREN BLVD SUITE 2312
NORMAN OK 73072
405-325-2209
JOHN.T.FERREE@NOAA.GOV
NATIONAL SERVICE CHANGE NOTICES ARE ONLINE AT /USE LOWERCASE/:
$$
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