Public Information Statement
Issued by NWS Binghamton, NY

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

000
NOUS41 KBGM 112032
PNSBGM
PAZ038>040-043-044-047-048-072-120500-

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE BINGHAMTON NY
330 PM EST TUE NOV 11 2014

...PENNSYLVANIA WINTER WEATHER AWARENESS WEEK CONTINUES...

THE NATIONAL WEATHER SERVICE WILL FEATURE A DIFFERENT EDUCATIONAL
TOPIC EACH WEEK DAY DURING WINTER WEATHER AWARENESS WEEK. TODAY/S
TOPIC:

TYPES OF HEAVY SNOW EVENTS WHICH IMPACT PENNSYLVANIA.

HEAVY SNOW CAN IMMOBILIZE A REGION AND PARALYZE A CITY...STRANDING
COMMUTERS...CLOSING AIRPORTS...STOPPING THE FLOW OF SUPPLIES...AND
DISRUPTING EMERGENCY AND MEDICAL SERVICES. ACCUMULATIONS OF SNOW CAN
CAUSE ROOFS TO COLLAPSE AND KNOCK DOWN TREES AND POWER LINES. HOMES
AND FARMS MAY BE ISOLATED FOR DAYS AND UNPROTECTED LIVESTOCK MAY BE
LOST. THE COST OF SNOW REMOVAL...REPAIRING DAMAGES...AND THE LOSS OF
BUSINESS CAN HAVE SEVERE ECONOMIC IMPACTS ON CITIES AND TOWNS.

HEAVY SNOW CAN BE PRODUCED BY NOREASTERS...BLIZZARDS AND OVERRUNNING
SITUATIONS. LESSER AMOUNTS OF SNOW ARE OFTEN PRODUCED BY ALBERTA
CLIPPERS.

NOREASTERS ARE INTENSE AREAS OF LOW PRESSURE THAT TYPICALLY DEVELOP
ALONG THE EASTERN SEABOARD MOST OFTEN DURING LATE FALL...WINTER AND
EARLY SPRING. THEY USUALLY BRING STRONG NORTHEAST WINDS TO AREAS
NEAR THE COAST AS THEY MOVE NORTH ALONG IT. SOME MEMORABLE
NOREASTERS IN RECENT YEARS INCLUDED THE PRESIDENTS DAY SNOWSTORM OF
2003...THE FEBRUARY 11TH AND 12TH STORM OF 2006...THE VALENTINES
DAY SNOWSTORM OF 2007 AND THE SNOWSTORM OF FEBRUARY 25TH AND
26TH...2010. SNOWFALL RATES IN NOREASTERS CAN REACH 2 TO 4 INCHES
PER HOUR AND THESE RATES CAN LAST FOR SEVERAL HOURS.

OVERRUNNING CAN ALSO PRODUCE HEAVY SNOW. THIS OCCURS WHEN WARM
AIR ALOFT FLOWS OVER COLD AIR NEAR THE SURFACE. OVERRUNNING HAPPENS
MOSTLY DURING THE WINTER WHEN THE CONTRAST IN AIRMASSES IS GREATEST.
OVERRUNNING OCCURS MOST OFTEN WHEN A LARGE DOME OF HIGH PRESSURE
IS LOCATED IN SOUTHEASTERN CANADA AND A WARM FRONT IS APPROACHING
OUR REGION FROM THE SOUTH OR SOUTHWEST.

AN ALBERTA CLIPPER IS AN AREA OF LOW PRESSURE THAT USUALLY DEVELOPS
OVER THE PROVINCE OF ALBERTA IN CANADA...EAST OF THE ROCKY
MOUNTAINS. ALBERTA CLIPPERS USUALLY MOVE VERY QUICKLY SOUTHEAST FROM
THEIR POINT OF ORIGIN AND USUALLY BRING ONLY LIGHT SNOW AS THEY
CROSS OUR REGION UNLESS THEY INTENSIFY OFF THE EAST COAST. THEY ALSO
ALLOW COLDER AIR FROM CANADA TO MOVE INTO OUR REGION IN THEIR WAKE.

SOME SNOW TERMS WHICH ARE COMMONLY USED INCLUDE BLIZZARD...BLOWING
SNOW...SNOW SQUALLS...SNOW SHOWERS AND SNOW FLURRIES.

A BLIZZARD IS A WINTER STORM WHICH HAS SUSTAINED WINDS OR FREQUENT
GUSTS OF 35 MPH OR MORE...WITH CONSIDERABLE FALLING AND OR BLOWING
SNOW FREQUENTLY REDUCING THE VISIBILITY TO AT OR BELOW ONE QUARTER
MILE...AND THESE CONDITIONS LAST FOR 3 HOURS OR MORE. SOME OF THE
GREATEST SNOWFALLS ON RECORD IN PENNSYLVANIA OCCURRED DURING
BLIZZARDS. 1 TO 2 FEET OF SNOW FELL OVER A LARGE PART OF PENNSYLVANIA
DURING THE BLIZZARD OF 1993.

BLOWING SNOW IS WIND DRIVEN SNOW THAT REDUCES VISIBILITY. BLOWING
SNOW MAY BE FALLING SNOW OR SNOW ALREADY ON THE GROUND THAT IS
PICKED UP BY THE WIND.

SNOW SQUALLS ARE BRIEF INTENSE SNOW SHOWERS ACCOMPANIED BY STRONG
GUSTY WINDS WHICH MAY PRODUCE SIGNIFICANT SNOW ACCUMULATIONS.

SNOW SHOWERS HAVE SNOW FALLING AT VARYING INTENSITIES FOR BRIEF
PERIODS OF TIME WITH SOME SNOW ACCUMULATION POSSIBLE.

SNOW FLURRIES ARE LIGHT SNOW WHICH FALLS WITH LITTLE OR NO SNOW
ACCUMULATION.

FOR MORE INFORMATION ON PENNSYLVANIA WINTER WEATHER AWARENESS WEEK
GO TO:

HTTP://WEATHER.GOV/CTP/WINTERWEATHERAWARENESSWEEK

YOU CAN ALSO VISIT OUR FACEBOOK PAGE WHICH CAN BE ACCESSED
AT HTTP://WWW.FACEBOOK.COM/NWSBINGHAMTON AND TWITTER AT
HTTP://WWW.TWITTER.COM/NWSBINGHAMTON  YOU CAN ALSO FOLLOW
ALONG USING THE HASHTAG #WINTERPREP.

YOU CAN ALSO CONTACT DAVE NICOSIA WARNING COORDINATION
METEOROLOGIST FOR NOAA`S NATIONAL WEATHER SERVICE IN
BINGHAMTON AT 607-770-9531 X 223 OR VIA EMAIL AT
DAVID.NICOSIA@NOAA.GOV


$$

DJN






USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.