a preponderance of punctuation marks (reedrover) wrote,
a preponderance of punctuation marks
reedrover

Snow math

Um... if I read these numbers correctly, they don't add up to "12-24" anymore. 5 + 22 + 9 = 36.

Late Afternoon: Snow. The snow could be heavy at times. High near 31. East wind around 6 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 3 to 5 inches possible.

Tonight: Snow and areas of blowing snow. The snow could be heavy at times. Low around 28. Northeast wind between 10 and 17 mph. Chance of precipitation is 100%. New snow accumulation of 16 to 22 inches possible.

Saturday: Snow and areas of blowing snow. High near 27. North wind between 15 and 17 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

Saturday Night: A chance of snow, mainly before 9pm. Cloudy, then gradually becoming partly cloudy, with a low around 9. Wind chill values as low as -1. North wind between 10 and 14 mph. Chance of precipitation is 50%.

Sunday: Mostly sunny, with a high near 27. Northwest wind around 10 mph.

And we've graduate from Winter Storm Warning to a "Special Weather Statement." The quote is "record snowfall." We are poised to beat all of the records for the area.

weather.gov
National Weather Service

Special Weather Statement
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1234 PM EST FRI FEB 5 2010

DCZ001-MDZ004>007-009>011-013-014-016>018-VAZ042-050>057-501-502-
060145-
DISTRICT OF COLUMBIA-FREDERICK MD-CARROLL-NORTHERN BALTIMORE-
HARFORD-MONTGOMERY-HOWARD-SOUTHERN BALTIMORE-PRINCE GEORGES-
ANNE ARUNDEL-CHARLES-ST. MARYS-CALVERT-LOUDOUN-ORANGE-CULPEPER-
PRINCE WILLIAM/MANASSAS/MANASSAS PARK-FAIRFAX-
ARLINGTON/FALLS CHURCH/ALEXANDRIA-STAFFORD-SPOTSYLVANIA-
KING GEORGE-NORTHERN FAUQUIER-SOUTHERN FAUQUIER-
INCLUDING THE CITIES OF...WASHINGTON...FREDERICK...WESTMINSTER...
GAITHERSBURG...COLUMBIA...BALTIMORE...ANNAPOLIS...WALDORF...
ST MARYS CITY...LEESBURG...CULPEPER...MANASSAS...MANASSAS PARK...
FAIRFAX...ALEXANDRIA...FALLS CHURCH...FREDERICKSBURG...WARRENTON
1234 PM EST FRI FEB 5 2010

...RECORD SNOWFALL FORECAST IN THE BALTIMORE-WASHINGTON DC REGION...

...EXTREMELY DANGEROUS WINTER WEATHER CONDITIONS DEVELOPING TONIGHT...

GUSTY NORTHEAST WINDS 20 TO 30 MPH WITH VISIBILITIES FREQUENTLY FALLING BELOW ONE-QUARTER MILE DUE TO HEAVY SNOW WILL DEVELOP TONIGHT TO PRODUCE NEAR-BLIZZARD AND EXTREMELY HAZARDOUS WINTER WEATHER CONDITIONS TONIGHT THROUGH SATURDAY MORNING. TRAVEL IS HIGHLY DISCOURAGED TONIGHT AND WILL BE VERY DANGEROUS.

LOOKING BACK AT THE BIGGEST STORM OF RECORD FOR WASHINGTON DC... THE JANUARY 1922 KNICKERBOCKER STORM...28.0 INCHES OF SNOW WAS PRODUCED FROM 3.02 INCHES OF LIQUID WATER. CURRENT FORECASTS FOR THIS EVENT HAVE TOTAL LIQUID FALLING FROM THIS STORM APPROACHING 3 INCHES...WHICH ACCORDINGLY WOULD CREATE A SNOWFALL THAT WILL RIVAL THE KNICKERBOCKER STORM TOTAL. GENERALLY ACROSS THE REGION...20 TO 30 INCHES OF SNOW WILL FALL BY SATURDAY EVENING.

BALTIMORES RECORD OF 26.8 INCHES FROM THE PRESIDENTS DAY FEBRUARY 2003 STORM WILL ALSO BE THREATENED.

A FEW PRECAUTIONARY AND PREPAREDNESS ITEMS TO NOTE:

1. FOLLOW MANUFACTURERS INSTRUCTIONS WHEN OPERATING A GENERATOR OR AXILLARY HEATER. ENSURE PORTABLE GENERATORS ARE ADEQUATELY VENTILATED.

2. TRAVEL CONDITIONS TONIGHT ACROSS THE REGION WILL BE EXTREMELY DANGEROUS AND LIFE THREATENING. HELP YOUR LOCAL AND STATE GOVERNMENT FIRST RESPONDERS AND TRANSPORTATION AGENCIES BY STAYING OFF ROADS LATER THIS EVENING AND TONIGHT.

3. FOLLOW LOCAL AND STATE GOVERNMENT EMERGENCY DECLARATION ORDERS. IF YOU ABSOLUTELY NEED TO TRAVEL IN AN EMERGENCY...DO NOT TRAVEL ALONE. LET SOMEONE KNOW YOUR TIMETABLE AND YOUR PRIMARY AND ALTERNATE ROUTES. CARRY WITH YOU A WINTER STORM SURVIVAL KIT WHICH INCLUDES A MOBILE PHONE...BLANKETS...FLASHLIGHT WITH EXTRA BATTERIES...HIGH CALORIE NON-PERISHABLE FOOD AND WATER...AND A SHOVEL.

4. IF YOU GET STRANDED IN YOUR VEHICLE...DO NOT LEAVE YOUR CAR TO TRY TO WALK FOR ASSISTANCE...YOU CAN QUICKLY BECOME DISORIENTED IN WIND DRIVEN SNOW AND COLD. THIS STORM WILL SUBSIDE SATURDAY AFTERNOON...SO WAIT IN YOUR CAR FOR EMERGENCY HELP TO ARRIVE. PERIODICALLY RUN YOUR ENGINE FOR ABOUT 10 MINUTES EACH HOUR FOR HEAT. ENSURE YOUR EXHAUST PIPE IS CLEARED OF SNOW AND ICE. CRACK YOUR WINDOWS TO AVOID CARBON MONOXIDE POISONING. TIE A COLORED CLOTH TO YOUR CARS ANTENNA TO BE VISIBLE TO RESCUERS. FROM TIME-TO-TIME...MOVE YOUR ARMS...LEGS...FINGERS...AND TOES TO KEEP BLOOD CIRCULATING.

5. AVOID OVEREXERTION WHEN SHOVELING SNOW. BREAK THE SHOVELING DOWN INTO SMALLER JOBS AND TAKE FREQUENT BREAKS.

6. IN CASE OF POWER SUPPLY DISRUPTIONS...HAVE AVAILABLE FLASH LIGHTS WITH EXTRA BATTERIES...EXTRA FOOD AND WATER...EXTRA MEDICINES.

7. ENSURE ANY PETS AND FARM ANIMALS HAVE PLENTY OF WATER...FOOD... AND SHELTER.

FINALLY...THE KEY TO GETTING THROUGH THIS AND OTHER PERIODS OF HAZARDOUS WINTER WEATHER IS WITH ADVANCE PLANNING AND BEING AWARE OF CURRENT CONDITIONS. THIS STORM WILL BE WINDING DOWN EARLY SATURDAY EVENING...SO DO YOUR PART AND LET YOUR LOCAL AND STATE GOVERNMENTS RESTORE ROADWAYS TO NORMAL CONDITIONS BY STAYING AT HOME.

--------------------------------------------------------------------------------


Winter Storm Warning
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
306 PM EST FRI FEB 5 2010

DCZ001-MDZ003>007-009>011-013-016-501-502-VAZ021-025>031-036>040-
042-050>057-501-502-WVZ050>055-501>504-060415-
/O.CON.KLWX.WS.W.0006.000000T0000Z-100207T0300Z/
DISTRICT OF COLUMBIA-WASHINGTON-FREDERICK MD-CARROLL-
NORTHERN BALTIMORE-HARFORD-MONTGOMERY-HOWARD-SOUTHERN BALTIMORE-
PRINCE GEORGES-CHARLES-EXTREME WESTERN ALLEGANY-
CENTRAL AND EASTERN ALLEGANY-HIGHLAND-AUGUSTA-ROCKINGHAM-
SHENANDOAH-FREDERICK VA-PAGE-WARREN-CLARKE-NELSON-ALBEMARLE-
GREENE-MADISON-RAPPAHANNOCK-LOUDOUN-ORANGE-CULPEPER-
PRINCE WILLIAM/MANASSAS/MANASSAS PARK-FAIRFAX-
ARLINGTON/FALLS CHURCH/ALEXANDRIA-STAFFORD-SPOTSYLVANIA-
KING GEORGE-NORTHERN FAUQUIER-SOUTHERN FAUQUIER-HAMPSHIRE-MORGAN-
BERKELEY-JEFFERSON-PENDLETON-HARDY-WESTERN GRANT-EASTERN GRANT-
WESTERN MINERAL-EASTERN MINERAL-
INCLUDING THE CITIES OF...WASHINGTON...HAGERSTOWN...FREDERICK...
WESTMINSTER...GAITHERSBURG...COLUMBIA...BALTIMORE...WALDORF...
FROSTBURG...CUMBERLAND...STAUNTON...WAYNESBORO...HARRISONBURG...
WINCHESTER...FRONT ROYAL...CHARLOTTESVILLE...LEESBURG...
CULPEPER...MANASSAS...MANASSAS PARK...FAIRFAX...ALEXANDRIA...
FALLS CHURCH...FREDERICKSBURG...WARRENTON...MARTINSBURG...
CHARLES TOWN...BAYARD...PETERSBURG...EMORYVILLE...HARTMANSVILLE...
KEYSER...FORT ASHBY
306 PM EST FRI FEB 5 2010

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM EST SATURDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM EST SATURDAY.

* PRECIPITATION TYPE...HEAVY SNOW.

* ACCUMULATIONS...WIDESPREAD STORM TOTAL ACCUMULATIONS OF 20 TO 30 INCHES...WITH SOME LOCATIONS IN EXCESS OF 30 INCHES.

* TIMING...SNOW WILL CONTINUE THROUGH SATURDAY EVENING. CONDITIONS WILL DETERIORATE RAPIDLY LATE THIS AFTERNOON...WITH THE HEAVIEST SNOWFALL OCCURRING FROM SUNSET THROUGH SATURDAY MORNING. THE MOST HAZARDOUS CONDITIONS WILL OCCUR TONIGHT.

* VISIBILITIES...WIDESPREAD VISIBILITIES AROUND ONE-QUARTER MILE ARE EXPECTED TONIGHT IN HEAVY SNOW.

* TEMPERATURES...HIGHS IN THE LOWER TO MID 30S THIS AFTERNOON. TEMPERATURES WILL BE IN THE MID TO UPPER 20S TONIGHT AND SATURDAY.

* WINDS...BECOMING NORTHEAST 10 TO 20 MPH LATE TODAY. GUSTS OF 20 TO 30 MPH TONIGHT AND SATURDAY...HIGHER NEAR THE COAST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS EXTREMELY DANGEROUS STORM IS EXPECTED TO PRODUCE RECORD SNOWFALL FOR THE BALTIMORE AND WASHINGTON DC METROPOLITAN AREAS. TRAVEL CONDITIONS TONIGHT ACROSS THE REGION WILL BE EXTREMELY HAZARDOUS AND LIFE-THREATENING. HELP YOUR LOCAL AND STATE GOVERNMENT FIRST RESPONDERS AND TRANSPORTATION AGENCIES BY STAYING OFF THE ROADS.

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO POSSIBLE... ESPECIALLY NEAR THE COASTLINE.

&&

--------------------------------------------------------------------------------


Short Term Forecast
SHORT TERM FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
157 PM EST FRI FEB 5 2010

DCZ001-MDZ009-013-VAZ042-052-053-055-501-502-052100-
DISTRICT OF COLUMBIA-MONTGOMERY-PRINCE GEORGES-LOUDOUN-
PRINCE WILLIAM/MANASSAS/MANASSAS PARK-FAIRFAX-STAFFORD-
NORTHERN FAUQUIER-SOUTHERN FAUQUIER-
157 PM EST FRI FEB 5 2010

.NOW...

...WINTER STORM WARNING IN EFFECT UNTIL 10 PM EST SATURDAY...

AREAS OF LIGHT TO MODERATE SNOW WILL CONTINUE ACROSS THE METROPOLITAN DC AREA THIS AFTERNOON. MANY OF THE WELL-TRAVELED ROADWAYS WILL REMAIN WET THIS AFTERNOON AS SURFACE TEMPERATURES CONTINUE TO HOVER NEAR FREEZING AND ROAD TEMPERATURES STILL IN THE MID AND UPPER 30S. THE WET-SNOW HOWEVER WILL CONTINUE TO ACCUMULATE ON OTHER SURFACES. THROUGH 4 PM...SNOW ACCUMULATIONS EXPECTED TO BE UNDER AN INCH...THOUGH LOCALLY HIGHER AMOUNTS OF 1 TO 2 INCHES WILL BE POSSIBLE UNDER THE HEAVIEST ACTIVITY.

$$


--------------------------------------------------------------------------------


Hazardous Weather Outlook
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
127 PM EST FRI FEB 5 2010

MDZ003>005-009-010-501-502-VAZ021-025>031-036>040-042-050-051-501-
502-WVZ050>055-501>504-061000-
WASHINGTON-FREDERICK MD-CARROLL-MONTGOMERY-HOWARD-
EXTREME WESTERN ALLEGANY-CENTRAL AND EASTERN ALLEGANY-HIGHLAND-
AUGUSTA-ROCKINGHAM-SHENANDOAH-FREDERICK VA-PAGE-WARREN-CLARKE-
NELSON-ALBEMARLE-GREENE-MADISON-RAPPAHANNOCK-LOUDOUN-ORANGE-
CULPEPER-NORTHERN FAUQUIER-SOUTHERN FAUQUIER-HAMPSHIRE-MORGAN-
BERKELEY-JEFFERSON-PENDLETON-HARDY-WESTERN GRANT-EASTERN GRANT-
WESTERN MINERAL-EASTERN MINERAL-
127 PM EST FRI FEB 5 2010

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN WEST VIRGINIA... NORTHERN AND CENTRAL VIRGINIA...AND CENTRAL AND WESTERN MARYLAND WITH THE EXCEPTION OF GARRETT COUNTY.

.DAY ONE...THIS AFTERNOON AND TONIGHT

A WINTER STORM WARNING FOR HEAVY SNOW REMAINS IN EFFECT THROUGH TONIGHT. NEAR- BLIZZARD CONDITIONS ARE EXPECTED TONIGHT. PLEASE REFER TO THE LATEST WINTER WEATHER MESSAGE /WSWLWX/ FOR FURTHER DETAILS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

A WINTER STORM WARNING FOR HEAVY SNOW REMAINS IN EFFECT UNTIL 10 PM SATURDAY. WIDESPREAD ACCUMULATIONS OF 20 TO 30 INCHES ARE EXPECTED WITH NEAR-BLIZZARD CONDITIONS FRIDAY NIGHT AND SATURDAY. TOTALS MAY EXCEED 30 INCHES AT HIGH ELEVATIONS. PLEASE REFER TO THE LATEST WINTER WEATHER MESSAGE /WSWLWX/ FOR FURTHER DETAILS.

THERE IS A POSSIBILITY OF ACCUMULATING WINTRY PRECIPITATION TUESDAY AND WEDNESDAY. PLEASE MONITOR FORECASTS FOR THE LATEST INFORMATION ON THIS POSSIBLE STORM.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED LATER TODAY. PLEASE BE PREPARED
TO RELAY SNOW REPORTS TO THE NATIONAL WEATHER SERVICE.
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