Public Information Statement
Issued by NWS Memphis, TN

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NOUS44 KMEG 191100
PNSMEG
ARZ008-009-017-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001>017-
020>024-TNZ001>004-019>022-048>055-088>092-200500-

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE MEMPHIS TN
600 AM CDT WED MAR 19 2014

THE NATIONAL WEATHER SERVICE (NWS) HAS DECLARED MARCH 17 THROUGH
MARCH 21 AS FLOOD SAFETY AWARENESS WEEK. THE NATIONAL WEATHER SERVICE
IN MEMPHIS, TENNESSEE 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 OR DAM
FAILURE).

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

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.

SNOWMELT: FLOODING DUE TO SNOWMELT MOST OFTEN OCCURS IN THE SPRING
WHEN WARMING TEMPERATURES QUICKLY MELT THE SNOW. MELT 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.

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.

$$




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