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Flooding Products Page
Welcome to The National Weather Service Wilmington NC Flooding Products Products Page. This page gives a description and examples of flood products The National Weather Service issues. To see other products...visit the hurricane products page. You can also see a description of marine products... miscellaneous products... and winter weather products.

For a detailed explanation of the components of the products...visit the products explanation page. Otherwise...just click on the links below to see an example of the product.
Areal Flood Advisory
An Areal Flood Advisory is issued for flooding that is a minimal risk to the public...generally water depth that is less than 6 inches. See an example.
WGUS82 KILM 052111 CLOSE
FLOOD ADVISORY
NAITONAL WEATHER SERVICE WILMINGTON NC
507 PM EDT SAT AUG 5 2006

THE NATIONAL WEATHER SERVICE IN WILMINGTON NC HAS ISSUED A

* FLOOD ADVISORY FOR...
   FLORENCE COUNTY IN NORTHEAST SOUTH CAROLINA

* UNTIL 600 PM EDT

* AT 507 PM EDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
   ALMOST TWO INCHES OF RAIN HAD FALLEN IN THE CENTRAL PART OF CENTRAL
   FLORENCE COUNTY.

* LOCATIONS IN THE ADVISORY INCLUDE BUT ARE NOT LIMITED TO CENTRAL
   CROSSROADS...NEW HOPE..COWARD...FLORENCE...JOHNSONVILLE...LAKE
   CITY...OLANTA...PAMLICO...QUINBY...AND SCRANTON.

THE STORMS WILL CONTINUE TO MOVE OFF TO THE WEST...HOWEVER...
EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE MINOR FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

STAY TUNED TO NOAA WEATHER RADIO ALL HAZARDS FOR FURTHER DETAILS OR
UPDATED. FOR ADDITIONAL WEATHER INFORMATION...CHECK OUR WEB SITE AT
WEATHER.GOV/ILM.

LAT...LON  3425  7982  3424  7976  3430  7968  3429  7961
    3413  7952  3399  7952  3381  7932  3383  7938
    3378  7950  3382  7965  3381  7973  3389  7985
    3389  7994  3395  7997  3399  7990  3409  8006

$$

15

Coastal Flood Advisory
A Coastal Flood Warning is issued for moderate or greater coastal flooding or over-wash. This product can be issued anywhere from the current hour out to 24 hours. This product is also superceeded by tropical cyclone watches and warnings. See an example.
WHUS42 KILM 080813 CLOSE
NCZ097-101-081500-
/O.CON.KILM.CF.Y.0001.061008T1100Z-061008T1500Z/
PENDER-NEW HANOVER-
413 AM EDT SUN OCT 8 2006

...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 11 AM EDT THIS
MORNING...

THE COMBINATION OF A VERY HIGH ASTRONOMICAL TIDE AND ONSHORE
WINDS ARE EXPECTED TO PUSH WATER LEVELS HIGH ENOUGH TO CAUSE
MINOR COASTAL FLOODING THIS MORNING. THIS IS EXPECTED TO OCCUR
AROUND THE TIME OF HIGH TIDE...WHICH WILL BE 9:00 AM.

THE AREA MOST SUSCEPTIBLE TO FLOODING PROBLEMS WILL BE THE NORTH
END OF CAROLINA BEACH...WHERE OCEAN OVERWASH MAY AFFECT CANAL
DRIVE FROM STARFISH LANE NORTHWARD. HOWEVER HIGH TIDES MAY ALSO
CAUSE MINOR PROBLEMS IN OTHER AREAS THAT ARE HISTORICALLY
VULNERABLE.

A COASTAL FLOOD ADVISORY INDICATES THAT ONSHORE WINDS AND TIDES
WILL COMBINE TO GENERATE FLOODING OF LOW AREAS ALONG THE SHORE.

$$

CRM

Coastal Flood Watch
A Coastal Flood Watch is issued when there is a 50 percent or greater chance of meeting Coastal Flood Warning criteria within the the next 12 to 36 hours.
Coastal Flood Warning
A Coastal Flood Warning is issued for moderate or greater coastal flooding or over-wash within 12 to 24 hours or imminent.
The Flood Warning example. The Flood Warning example. The Flood Warning example. The Flood Warning example. The Flood Warning example. The Flood Warning example. The Flood Warning example. The Flood Warning example. The Flood Warning example. The Flood Warning example.
Flash Flood Warning
A Flash Flood Warning is issued for life threatening flooding including a dam or levee failure that is imminent or ongoing with an expectation that it will continue. See an example.
WGUS52 KILM 010431 CLOSE
FFWILM
SCC051-010630-

BULLETIN - EAS ACTIVAITON REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE WILMINGTON NC
1226 AM EDT FRI SEP 1 2006

THE NATIONAL WEATHER SERVICE IN WILMINGTON NC HAS ISSUED A

* FLASH FLOOD WARNING FOR...
    NORTHERN AND EASTERN HORRY COUNTY IN NORTHEAST SOUTH CAROLINA

* UNTIL 230 AM EDT

* AT 1215 AM EDT..NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
   RAINFALL AMOUNTS ALREADY TOTALLING 3 TO 5 INCHES WITH AN
   ADDITIONAL 1 TO 3 INCHES POSSIBLE FROM THE RAIN BANDS ASSOCIATED
   WITH ERNESTO.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO GREEN SEA
   ...LORIS...GEORGETOWN AND LONGS. OVERFLOWING CREEKS ESPECIALLY ALONG
   HIGHWAYS 9 AND 701 EAST OF BAYBORO WILL LIKELY OBSERVE FLASH
   FLOODING.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...ROADS AND
FARMLANDS ALONG THE BANKS OF STREAMS AND OTHER LOW LYING AREAS ARE
SUBJECT TO FLASH FLOODING.

BE EXPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE.

LAT...LON 3379 7875 3386 7857 3429 7907 3419 7915

$$

DCH

Flood Watch
A Flood Watch is issued when there is a 50 percent or greater chance of meeting or exceeding Flood Warning criteria within 36 hours. See an example.
WGUS62 KILM 220255 CLOSE
FLOOD WATCH
NATIONAL WEATHER SERVICE WILMINGTON NC
955 PM EST TUE NOV 21 2006

NCZ096-097-099>101-SCZ034-221100-
/O.CON.KILM.FA.A.0006.000000T0000Z-061123T0000Z/
/0000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BLADEN-PENDER-COLUMBUS-BRUNSWICK-NEW HANOVER-HORRY-
INCLUDING THE CITIES OF...ELIZABETHTOWN...BURGAW...SURF CITY...
WHITEVILLE...LELAND...SHALLOTTE...WILMINGTON...
WRIGHTSVILLE BEACH...CONWAY...MYRTLE BEACH
955 PM EST TUE NOV 21 2006

...FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY EVENING...

THE FLOOD WATCH CONTINUES FOR

* PORTIONS OF SOUTHEAST NORTH CAROLINA AND NORTHEAST SOUTH
   CAROLINA...INCLUDING THE FOLLOWING AREAS...IN SOUTHEAST NORTH
   CAROLINA...BLADEN...BRUNSWICK...COLUMBUS...NEW HANOVER AND
   PENDER IN NORTHEAST SoUTH CAROLINA...HORRY.

* THROUGH WEDNESDAY EVENING

* A STRONG LOW PRESSURE SYSTEM WILL MOVE SLOWLY NORTHEAST JUST
   OFFSHORE...BRINGING 4 TO 7 INCHES OF RAIN TO THE AREA. THE
   HIGHEST RAINFALL TOTALS ARE EXPECTED ALONG THE COAST OF NORTH
   CAROLINA...BUT FLOODING RAINFALL COULD OCCUR ANYWHERE IN THE
   WATCH AREA.

A FLOOD WATCH MEANs THERE IS A POTENTIAL FOR FLOODING BASED ON
CURRENT FORECASTS. YOU SHOULD MONITOR LATER FORECASTS AND BE
ALERT FOR POSSIBLE FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO
FLOODING SHOULD BE PREPARED TO TAKE ACTION SHOULD FLOODING
DEVELOP.

$$

15

Flood Warning
A Flood Warning is isssued for inundation of flood waters not reaching flash flood thresholds that are imminent or ongoing with an expectation that they will continue. A Flood Warning is also issued when main-stem river forecasts points are expected to rise above flood stage.
Hydrologic Outlook
A Hydrologic Outlook is issued for at least a 30 percent chance of flooding beyond 36 hours. This may also be issued to provide seasonal water supply and dry weather conditions. See an example.
FGUS72 KILM 201037 CLOSE
HYDROLOGIC OUTLOOK
NATIONAL WEATHER SERVICE WILMINGTON NC
537 AM EST MON NOV 20 2006

...A PROLONGED AND POSSIBLY HEAVY RAIN EVENT IS EXPECTED TUESDAY
THROUGH WEDNESDAY...

A FLOOD WATCH MAY BE ISSUED FOR AT LEAST A PORTION OF THE AREA
LATER TODAY.

THE STEADIEST AND HEAVIEST RAIN WILL LIKELY OCCUR ACROSS THE AREA
LATE TUESDAY AFTERNOON THROUGH WEDNESDAY. WIDESPREAD RAINFALL
AMOUNTS OF TWO TO FOUR INCHES ARE EXPECTED. HOWEVER...HIGHER
AMOUNTS ARE POSSIBLE...ESPECIALLY ALONG THE COAST AND ALONG AND
SOUTH OF U.S. ROUTE 378.

RECENT HEAVY RAINS HAVE ELEVATED RIVER LEVELS ACROSS THE AREA.
SOILS ARE ALREADY VERY MOIST. WIDESPREAD RAINFALL AMOUNTS OF THREE
TO FoUR INCHES WILL BE ENOUGH TO CAUSE FLOODING ACROSS THE AREA.

THE FLOOD RISK ALONG THE IMMEDIATE COAST WILL BE SLIGHTLY HIGHER
AROUND HIGH TIDE BOTH TUESDAY AND WEDNESDAY AS THE CONTRIBUTION
FROM HIGHER THAN NORMAL TIDAl INFLUENCES AFFECT THE BEACHES. THE
HIGHEST PREDICTED TIDES WILL OCCUR DURING THE MORNING HOURS.

LOW PRESSURE WILL DEVELOP OFF THE SOUTH CAROLINA COAST THIS
AFTERNOON AND THEN DRIFT ACROSS THE COASTAL WATERS THROUGH
WEDNESDAY AND THEN BEGIN LIFTING NORTH OF THE AREA DURING THURSDAY.

PLEASE STAY TUNED TO NOAA WEATHER RADIO ALL HAZARDS FOR THE
LATEST WEATHER INFORMATION.

$$

RJD

High Surf Advisory
A High Surf Advisory is issued for observed 8 foot breakers or observed buoy data of at least 7 foot seas and periods of 16 seconds or greater. This is accompanied by a high astronomical tide. A High Surf Advisory can also be issued for seas of at least 10 feet or greater with periods of 10 seconds or greater. See an example.
WHUS42 KILM 280928 CLOSE
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE WILMINGTON NC
528 AM EDT SAT OCT 28 2006

NCZ097-101-SCZ034-046-281600-
/O.CAN.KILM.CF.S.0017.000000T0000Z-061028T2100Z/
/O.CON.KILM.SU.Y.0001.000000T0000Z-061028T1600Z/
PENDER-NEW HANOVER-HORRY-GEORGETOWN-
528 AM EDT SAT OCT 28 2006

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL NOON EDT TODAY...

THE NATIONAL WEATHER SERVICE IN WILMINGTON CONTINUES A HIGH SURF
ADVISORY UNTIL 12 PM EDT TODAY.

THE SURF WILL BE ROUGH WITH BREAKERS AS HIGH AS 6 TO 10 FEET THIS
MORNING...SUBSIDING TO 5 TO 6 FT THIS AFTERNOON. THE WORST OF THE
SURF CONDITIONS WILL OCCUR AROUND DAYBREAK...WHICH WILL BE THE
TIME OF LOW TIDE. MINOR BEACH EROSION IS POSSIBLE...MAINLY ALONG
SOUTH FACING BEACHES.

THERE IS A MODERATE RISK FOR RIP CURRENTS TODAY FOR EAST AND
SOUTHEAST FACING BEACHES. THE STRONGEST AND MOST NUMEROUS RIP
CURRENTS WILL BE AROUND THIS MORNING'S LOW TIDE...WHICH OCCURS
AROUND 600 AM.

THE STRONG SOUTH WINDS PRODUCING THE HUGE SEAS ARE THE RESULT OF
AN INTENSE AREA OF LOW PRESSURE WHICH WILL BEMOVING NORTH ACROSS
THE NORTHEAST CORNER OF THE NATION TODAY. ITS ASSOCIATED COLD
FRONT WILL SWEEP ACROSS THE AREA THIS MORNING. THIS WILL CAUSE
WINDS TO BECOME WEST TO NORTHWEST. OFFSHORE WINDS WILL QUICKLY
LAY DOWN THE SURF LATE THIS MORNING AND EARLY THIS AFTERNOON.

$$

NCZ100-281600-
/O.EXT.KILM.CF.S.0017.000000T0000Z-061029T0300Z/
/O.CON.KILM.SU.Y.0001.000000T0000Z-061028T1600Z/
BRUNSWICK-
528 AM EDT SAT OCT 28 2006

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL NOON EDT TODAY...
...HIGH RISK FOR RIP CURRENTS TODAY...

THE NATIONAL WEATHER SERVICE IN WILMINGTON CONTINUES A HIGH SURF
ADVISORY UNTIL 12 PM EDT TODAY.

THE SURF WILL BE ROUGH WITH BREAKERS AS HIGH AS 6 TO 10 FEET THIS
MORNING...SUBSIDING TO 5 TO 6 FT THIS AFTERNOON. THE WORST OF THE
SURF CONDITIONS WILL OCCUR AROUND DAYBREAK...WHICH WILL BE THE
TIME OF LOW TIDE. MINOR BEACH EROSION IS POSSIBLE...ESPECIALLY
ALONG SOUTH FACING BEACHES.

THERE IS A HIGH RISK FOR RIP CURRENTS TODAY FOR SOUTH FACING
BEACHES. THE STRONGEST AND MOST DANGEROUS RIP CURRENTS WILL BE
AROUND THIS MORNING'S LOW TIDE...WHICH OCCURS AROUND 600 AM.

THE STRONG SOUTH WINDS PRODUCING THE HUGE SEAS ARE THE RESULT OF
AN INTENSE AREA OF LOW PRESSURE WHICH WILL BE MOVING NORTH ACROSS
THE NORTHEAST CORNER OF THE NATION TODAY. ITS ASSOCIATED COLD
FRONT WILL SWEEP ACROSS THE AREA THIS MORNING. THIS WILL CAUSE
WINDS TO BECOME WEST TO NORTHWEST. OFFSHORE WINDS WILL QUICKLY
LAY DOWN THE SURF LATE THIS MORNING AND EARLY THIS AFTERNOON.

$$

RJD

National Weather Service
Weather Forecast Office, Wilmington NC
2015 Gardner Drive
Wilmington, NC 28405
(910) 762-4289


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Page Last Modified: April 30, 2008