Expires:200903190600;;033899 ASUS46 KPQR 181210 RWROR OREGON REGIONAL WEATHER ROUNDUP NATIONAL WEATHER SERVICE PORTLAND OR 500 AM PDT WED MAR 18 2009 NOTE: "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO SIGNIFICANT WEATHER AND/OR OBSTRUCTIONS TO VISIBILITY. MEZ001>006-010-011-015>017-029>032-190600- PUBLIC INFORMATION STATEMENT NATIONAL WEATHER SERVICE CARIBOU ME 800 AM WED MAR 18 2009 ...THE NATIONAL WEATHER SERVICE HAS DECLARED THE WEEK OF MARCH 16TH THROUGH 20TH FLOOD AWARENESS WEEK IN MAINE...AS WELL AS THE REMAINDER OF THE UNITED STATES... THE NATIONAL WEATHER SERVICE IN CARIBOU ENCOURAGES RESIDENTS OF MAINE TO BE AWARE OF DANGERS ASSOCIATED WITH FLOODING AND TAKE TIME THIS WEEK TO REVIEW FLOOD THREATS AND FLOOD SAFETY PRACTICES. A DIFFERENT EDUCATIONAL TOPIC WILL BE FEATURED EACH DAY DURING THE WEEK. TODAY'S TOPIC: TROPICAL CYCLONE INLAND FLOODING. WHEN IT COMES TO TROPICAL CYCLONES...A GENERIC TERM FOR A HURRICANE...TYPHOON OR TROPICAL STORM...WIND SPEEDS DO NOT TELL THE WHOLE STORY. INTENSE RAINFALL...NOT DIRECTLY RELATED TO THE WIND SPEED OF A TROPICAL CYCLONE...OFTEN CAUSES MORE DAMAGE. SINCE THE 1970S...INLAND FLOODING HAS BEEN RESPONSIBLE FOR MORE THAN HALF OF THE DEATHS ASSOCIATED WITH TROPICAL CYCLONES IN THE UNITED STATES. TYPICALLY...GREATER RAINFALL AMOUNTS AND FLOODING ARE ASSOCIATED WITH TROPICAL CYCLONES THAT HAVE A SLOW FORWARD SPEED OR STALL OVER AN AREA. WHAT DO YOU NEED TO KNOW ABOUT INLAND FLOODING FROM TROPICAL CYCLONES? INLAND FRESHWATER FLOODS ACCOUNTED FOR MORE THAN HALF OF U.S. TROPICAL CYCLONE DEATHS OVER THE PAST 30 YEARS. RAINFALL IS TYPICALLY HEAVIER WITH SLOWER MOVING STORMS AS SLOWER MOVING TROPICAL CYCLONES ALLOW HEAVY RAIN TO PERSIST OVER A LOCATION. WHAT TYPES OF INLAND FLOODING ARE CAUSED BY TROPICAL CYCLONES? * FLASH FLOODING: FLASH FLOODING OCCURS IN BROOKS...STREAMS...AND URBAN AREAS WITHIN A FEW MINUTES OR HOURS OF EXCESSIVE RAINFALL. RAPIDLY RISING WATER CAN REACH HEIGHTS OF 30 FEET OR MORE. STREETS CAN BECOME SWIFT MOVING RIVERS AND UNDERPASSES CAN BECOME DEATH TRAPS. * RIVER FLOODING: RIVER FLOODING OCCURS FROM HEAVY RAINS ASSOCIATED WITH DECAYING HURRICANES OR TROPICAL STORMS...AND IN EXTREME CASES...RIVER FLOODS CAN LAST A WEEK OR MORE. HOW DO YOU KNOW HOW SEVERE A FLOOD WILL BE? WITHIN FLOOD WARNING PRODUCTS...THE NATIONAL WEATHER SERVICE CONVEYS THE MAGNITUDE OF OBSERVED OR FORECAST FLOODING USING FLOOD SEVERITY CATEGORIES. THESE FLOOD SEVERITY CATEGORIES INCLUDE MINOR FLOODING... MODERATE FLOODING...AND MAJOR FLOODING. EACH CATEGORY HAS A DEFINITION BASED ON PROPERTY DAMAGE AND PUBLIC THREAT. * MINOR FLOODING: MINIMAL OR NO PROPERTY DAMAGE...BUT POSSIBLY SOME PUBLIC THREAT OR INCONVENIENCE. * MODERATE FLOODING: SOME INUNDATION OF STRUCTURES AND ROADS NEAR STREAMS. SOME EVACUATIONS OF PEOPLE AND OR TRANSFER OF PROPERTY TO HIGHER ELEVATIONS ARE NECESSARY. * MAJOR FLOODING: EXTENSIVE INUNDATION OF STRUCTURES AND ROADS WITH SIGNIFICANT EVACUATIONS OF PEOPLE AND OR TRANSFER OF PROPERTY TO HIGHER ELEVATIONS. THE IMPACTS OF A FLOOD VARY LOCALLY. FOR EACH NWS RIVER FORECAST LOCATION...FLOOD STAGE AND THE STAGE ASSOCIATED WITH EACH OF THE NWS FLOOD SEVERITY CATEGORIES ARE ESTABLISHED IN COOPERATION WITH LOCAL PUBLIC OFFICIALS. INCREASING RIVER LEVELS ABOVE FLOOD STAGE CONSTITUTE MINOR...MODERATE...AND MAJOR FLOODING. IMPACTS VARY FROM ONE RIVER LOCATION TO ANOTHER BECAUSE A CERTAIN RIVER STAGE HEIGHT IN ONE LOCATION MAY HAVE AN ENTIRELY DIFFERENT IMPACT THAN THE SAME LEVEL ABOVE FLOOD STAGE AT ANOTHER LOCATION. $$ MAT