Public Information Statement
Issued by NWS Omaha/Valley, NE

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NOUS43 KOAX 241419
PNSOAX
IAZ043-055-056-069-079-080-090-091-NEZ011-012-015>018-030>034-
042>045-050>053-065>068-078-088>093-250230-

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
919 AM CDT MON MAR 24 2014

...TODAY BEGINS SEVERE WEATHER AWARENESS WEEK...

GOVERNORS TERRY BRANSTAD AND DAVE HEINEMAN...THE IOWA HOMELAND
SECURITY AND EMERGENCY MANAGEMENT DIVISION...THE NEBRASKA EMERGENCY
MANAGEMENT AGENCY AND THE NATIONAL WEATHER SERVICE HAVE DESIGNATED
THE WEEK OF MARCH 24 TO MARCH 28 AS SEVERE WEATHER AWARENESS WEEK IN
IOWA AND NEBRASKA. EACH MORNING THIS WEEK...THE NATIONAL WEATHER
SERVICE IN OMAHA/VALLEY WILL ISSUE A PUBLIC INFORMATION STATEMENT
FOCUSING ON A DIFFERENT ITEM EACH DAY. TOPICS THIS YEAR INCLUDES
THE FOLLOWING...

     MONDAY...FLASH FLOODING
     TUESDAY...WARNING RECEPTION
     WEDNESDAY...TORNADOES
     THURSDAY...SEVERE THUNDERSTORMS
     FRIDAY...FAMILY PREPAREDNESS

ATTENTION MEDIA...IN ORDER FOR SEVERE WEATHER AWARENESS WEEK TO
BE EFFECTIVE...MEDIA COVERAGE IS CRITICAL.  PLEASE USE THE
INFORMATION IN THE PUBLIC INFORMATION STATEMENTS IN YOUR NEWS
PROGRAMS TO HELP PROMOTE SEVERE WEATHER SAFETY.  WE ALSO ENCOURAGE
MEDIA INTERVIEWS.  PLEASE CONTACT BRIAN SMITH OR THE SENIOR
METEOROGIST IF YOU ARE INTERESTED.

RECENT DEVELOPMENTS...
IMPACT BASED WARNINGS...THE IMPACT BASE WARNINGS EXPERIMENTAL
PRODUCT IS AN EFFORT TO BETTER COMMUNICATE SEVERE WEATHER THREATS
WITH NATIONAL WEATHER SERVICE WARNINGS. HERE IS A LINK TO THE
IMPACT BASED WARNINGS WEBSITE...
WWW.CRH.NOAA.GOV/CRH/?N=2013_IBW_INFO (LOWER CASE)

WIRELESS EMERGENCY ALERTS...2014 WILL BE THE SECOND COMPLETE
SEVERE WEATHER SEASON WITH WIRELESS EMERGENCY ALERTS. HERE IS A
WEBSITE TO LEARN MORE! WWW.FEMA.GOV/COMMERCIAL-MOBILE-ALERT-SYSTEM
(LOWER CASE)

IOWA AND NEBRASKA WILL HAVE COMBINED SEVERE WEATHER AWARENESS WEEKS.
THE COMBINED WEEK WILL HELP WITH THE TORNADO TEST FOR THOSE ALONG
THE MISSOURI RIVER.

TODAY/S TOPIC IS FLASH FLOODING

EACH YEAR...MORE DEATHS OCCUR DUE TO FLOODING THAN FROM ANY OTHER
THUNDERSTORM RELATED HAZARD...RESULTING IN MORE THAN 140 FATALITIES
EACH YEAR. MOST FLASH FLOODS ARE CAUSED BY SLOW MOVING THUNDERSTORMS
...THUNDERSTORMS THAT REDEVELOP OVER THE SAME AREA...OR HEAVY RAINS
FROM TROPICAL STORMS AND HURRICANES. THESE FLOODS CAN DEVELOP WITHIN
MINUTES OR HOURS DEPENDING ON THE INTENSITY AND DURATION OF THE RAIN
...THE TOPOGRAPHY...SOIL CONDITIONS...AND GROUND COVER.

A FLASH FLOOD IS A RAPID RISE OF WATER ALONG A STREAM OR LOW-LYING
URBAN AREA. FLASH FLOODS CAN ROLL BOULDERS...TEAR OUT TREES...
DESTROY BUILDINGS AND BRIDGES...AND SCOUR OUT NEW CHANNELS. RAPIDLY
RISING WATER CAN REACH HEIGHTS OF 10 FEET OR MORE.

A FLASH FLOOD WATCH IS ISSUED BY THE NATIONAL WEATHER SERVICE TO
INDICATE CURRENT OR DEVELOPING HYDROLOGIC CONDITIONS THAT ARE
FAVORABLE FOR FLASH FLOODING IN AND CLOSE TO THE WATCH AREA. THE
OCCURRENCE OF FLOODING IS NEITHER CERTAIN NOR IMMINENT. THOSE IN THE
WATCH AREA SHOULD BE ALERT FOR FLOODING.

A FLASH FLOOD WARNING MEANS NATIONAL WEATHER SERVICE METEOROLOGISTS
HAVE DETERMINED THAT FLASH FLOODING IS OCCURRING OR IMMINENT. THOSE
IN THE WARNING AREA SHOULD TAKE THE NECESSARY PRECAUTIONS AT ONCE.

ALMOST HALF OF ALL FLASH FLOOD FATALITIES OCCUR IN VEHICLES. MANY
PEOPLE DO NOT REALIZE TWO FEET OF WATER ON A BRIDGE OR HIGHWAY CAN
FLOAT MOST VEHICLES. IF THE WATER IS MOVING RAPIDLY...THE CAR...
TRUCK...OR SUV CAN BE SWEPT OFF THE BRIDGE AND INTO THE CREEK OR
DOWNSTREAM WITH THE FLOWING WATER. WATER CAN ERODE THE ROAD BED...
CREATING UNSAFE DRIVING CONDITIONS. UNDERPASSES CAN FILL RAPIDLY
WITH WATER...WHILE THE ADJACENT ROADWAY REMAINS CLEAR. DRIVING INTO
A FLOODED UNDER-PASS CAN QUICKLY PUT YOU IN FIVE TO SIX FEET OF
WATER. MANY FLASH FLOODS OCCUR AT NIGHT WHEN FLOODED ROADS ARE
DIFFICULT TO SEE.

WHEN YOU APPROACH A FLOODED ROAD...TURN AROUND...DON/T DROWN!

FLASH FLOOD MYTH VS. FACT...

MYTH...FLASH FLOODS ONLY OCCUR IN THE EASTERN UNITED STATES.
FACT...FLASH FLOODS HAVE AND CAN OCCUR IN ALL 50
       STATES...INCLUDING ALASKA AND HAWAII.

MYTH...FLASH FLOODS OCCUR ONLY ALONG FLOWING STREAMS.
FACT...FLASH FLOODS CAN OCCUR IN DRY CREEK BEDS AND URBAN AREAS
       WHERE NO STREAMS ARE PRESENT.

MYTH...FLASH FLOODS OCCUR MAINLY IN THE LATE AFTERNOON AND
       EVENING.
FACT...FLASH FLOODS CAN OCCUR AT ANY TIME OF DAY...MANY FLASH
       FLOODS OCCUR AT NIGHT...TOO.

MYTH...LARGER VEHICLES...SUCH AS SUVS AND PICKUPS...ARE SAFE TO
       DRIVE THROUGH FLOOD WATERS.
FACT...TWO FEET OF RUSHING WATER CAN CARRY AWAY MOST VEHICLES...
       INCLUDING SUVS AND PICKUPS.

MYTH...HOMEOWNERS INSURANCE POLICIES COVER FLOODING.
FACT...UNFORTUNATELY...MANY HOMEOWNERS DO NOT FIND OUT UNTIL IT
       IS TOO LATE THAT THEIR POLICES DO NOT COVER FLOODING.
       CONTACT YOUR INSURANCE COMPANY OR AGENT ABOUT FLOOD
       INSURANCE.

HERE ARE SOME FLOOD SAFETY TIPS...

BEFORE A FLOOD...KNOW THE COUNTY IN WHICH YOU LIVE AND THE NAMES
OF NEARBY MAJOR CITIES. CHECK THE WEATHER FORECAST BEFORE LEAVING
TO BE OUTDOORS FOR EXTENDED PERIODS. WATCH FOR SIGNS OF
APPROACHING STORMS. MONITOR THE NOAA WEATHER RADIO OR YOUR
FAVORITE NEWS SOURCE FOR VITAL WEATHER RELATED INFORMATION. DO NOT
CAMP OR PARK YOUR VEHICLE ALONG STREAMS AND WASHES...PARTICULARLY
DURING THREATENING CONDITIONS.

IF FLOODING OCCURS...GET TO HIGHER GROUND. GET OUT OF AREAS
SUBJECT TO FLOODING. THIS INCLUDES DIPS...LOW SPOTS
...CANYONS...WASHES ETC. AVOID AREAS ALREADY FLOODED...ESPECIALLY
IF THE WATER IS FLOWING FAST. DO NOT ATTEMPT TO CROSS FLOWING
STREAMS. ROAD BEDS MAY BE WASHED OUT UNDER FLOOD WATERS. NEVER
DRIVE THROUGH FLOODED ROADWAYS. DO NOT ALLOW CHILDREN TO PLAY NEAR
HIGH WATER...STORM DRAINS OR DITCHES. HIDDEN DANGERS COULD LIE
BENEATH THE WATER. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS
HARDER TO RECOGNIZE FLOOD DANGERS.

BRIAN E.SMITH
WARNING COORDINATION METEOROLOGIST
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
WWW.WEATHER.GOV/OMAHA


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