Public Information Statement
Issued by NWS Binghamton, NY

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PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE CITY ST
800 AM EDT WED APR 8 2015

THE NATIONAL WEATHER SERVICE HAS DECLARED APRIL 6 THROUGH APRIL 10
AS FLOOD SAFETY AWARENESS WEEK IN PENNSYLVANIA. THE NATIONAL WEATHER
SERVICE IN BINGHAMTON WILL FEATURE INFORMATION ABOUT A DIFFERENT
FLOOD TOPIC EACH DAY DURING THE AWARENESS WEEK.

TODAY`S TOPIC: FLOODS HAZARDS

A FLOOD IS DEFINED AS ANY HIGH FLOW...OVERFLOW...OR INUNDATION OF WATER THAT CAUSES OR
THREATENS DAMAGE.  FLOODING CAN OCCUR WITH PROLONGED RAINFALL OVER SEVERAL DAYS...INTENSE
RAINFALL OVER A SHORT PERIOD OF TIME...OR WHEN WATER FROM AN EXISTING SOURCE MOVES TOO
QUICKLY (I.E. SNOWMELT...DAM BREAK...ETC.). BRIEF DESCRIPTIONS OF THE VARIOUS TYPES OF
FLOODING YOU MAY EXPERIENCE ARE FOUND BELOW.  MORE INFORMATION ABOUT THESE FLOOD HAZARDS CAN
BE FOUND ON THE NWS FLOOD SAFETY WEBSITE AT WWW.FLOODSAFETY.NOAA.GOV.

FLASH FLOODING: FLASH FLOODING IS A RAPID AND EXTREME FLOW OF HIGH WATER INTO A NORMALLY
DRY AREA...OR A RAPID WATER LEVEL RISE IN A STREAM OR CREEK ABOVE A PREDETERMINED FLOOD
LEVEL...BEGINNING WITHIN SIX HOURS OF THE CAUSATIVE EVENT (I.E. INTENSE RAINFALL...DAM
FAILURE...ICE JAM).

RIVER FLOODING: RIVER FLOODING OCCURS WHEN RIVERS RISE AND OVERFLOW THEIR BANKS...INUNDATING
AREAS THAT ARE NORMALLY DRY.

TROPICAL SYSTEMS AND COASTAL FLOODING: AT ANY TIME OF YEAR...A STORM FROM OVER THE OCEAN CAN
BRING HEAVY PRECIPITATION TO THE U.S. COASTS. WHETHER SUCH A STORM IS TROPICAL OR NOT...PROLONGED
PERIODS OF HEAVY PRECIPITATION CAN CAUSE FRESHWATER FLOODING IN COASTAL AREAS...AS WELL AS FURTHER
INLAND AS THE STORM MOVES ON SHORE. IN ADDITION TO THE FRESHWATER FLOOD THREATTROPICAL SYSTEMS
AND NOR`EASTERS CAN BRING THE THREAT OF STORM SURGE RELATED COASTAL FLOODING.

DEBRIS FLOWS: WITHOUT VEGETATION TO HOLD THE SOIL IN PLACE...FLOODING CAN PRODUCE MUD AND DEBRIS
FLOWS.

SNOWMELT: FLOODING DUE TO SNOWMELT MOST OFTEN OCCURS IN THE SPRING WHEN WARMING TEMPERATURES
QUICKLY MELT THE SNOW. THE WATER RUNS OFF THE STILL PARTIALLY FROZEN OR ALREADY SATURATED GROUND
INTO NEARBY STREAMS AND RIVERS...CAUSING THEM TO RAPIDLY RISE AND SOMETIMES OVERFLOW THEIR BANKS.

ICE AND DEBRIS JAMS: A BACKUP OF WATER INTO SURROUNDING AREAS CAN OCCUR WHEN A RIVER OR STREAM
IS BLOCKED BY A BUILD-UP OF ICE OR OTHER DEBRIS.

DAM BREAK AND LEVEE FAILURE: A BREAK OR FAILURE CAN OCCUR WITH LITTLE TO NO WARNING. MOST
OFTEN THEY ARE CAUSED BY WATER OVERTOPPING THE STRUCTURE...EXCESSIVE SEEPAGE THROUGH THE
SURROUNDING GROUND...OR A STRUCTURAL FAILURE.

UNDERSTANDING THE DIFFERENT FLOOD HAZARDS AND KNOWING THE ACTIONS TO TAKE BEFORE...DURING...
AND AFTERWARDS CAN HELP YOU PROTECT YOUR LIFE...THE LIVES OF YOUR LOVED ONES...AND YOUR
PROPERTY.  PREPARE NOW BY VISITING WWW.FLOODSAFETY.NOAA.GOV

JOIN US TOMORROW FOR INFORMATION ON FLOOD RELATED SERVICES PROVIDED BY THE NATIONAL WEATHER
SERVICE.

YOU CAN ALSO CONTACT DAVID 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

$$
DAVID J. NICOSIA
WARNING COORDINATION METEOROLOGIST
NOAA`S NATIONAL WEATHER SERVICE BINGHAMTON NY



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