691
WGUS63 KFGF 220413
FFAFGF
FLOOD WATCH
NATIONAL WEATHER SERVICE GRAND FORKS ND
1113 PM CDT TUE MAY 21 2013
..RENWICK DAM SITUATION
A FLASH FLOOD WATCH IS IN AFFECT THROUGH MIDDAY WEDNESDAY FOR
AREAS DOWNSTREAM OF THE RENWICK DAM ON THE TONGUE RIVER. WATER
REMAINS VERY HIGH AT THE DAM SITE AND IS BEING HELD BACK BY A
CONSTRUCTED EARTHEN LEVEE ON TOP OF THE DAM STRUCTURE. OFFICIALS
CONTINUE TO MONITOR THE DAM AND THE NEW CLAY LEVEE FOR ANY
EROSION.
THERE ARE SEVERAL RETENTION DAMS TO THE WEST OF THE RENWICK
DAM...AND WITH THE LARGE AMOUNT OF WATER IN THE AREA THESE DAMS
HAVE A HIGH POTENTIAL OF FAILING. IF ONE OF THESE OLDER DAMS TO
THE WEST DID FAIL...THE TEMPORARY LEVEE ON TOP OF THE RENWICK DAM
WOULD NO LONGER BE ABLE TO HOLD BACK WATER...AND MAJOR FLOODING
WOULD BE IMMINENT FOR THE CITIES OF AKRA...CAVALIER...AND
BATHGATE. PEMBINA COUNTY EMERGENCY MANAGEMENT ANTICIPATES A
POSSIBLE BREACH WITHIN THE NEXT 12 HOURS...AND HAVE ORDERED A
MANDATORY EVACUATION FOR THE AREA IMMEDIATELY DOWNSTREAM OF THE
RENWICK DAM...INCLUDING THE CITY OF CAVALIER.
NDZ008-221900-
/O.CON.KFGF.FF.A.0001.000000T0000Z-130522T1900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PEMBINA-
INCLUDING THE CITY OF...CAVALIER
1113 PM CDT TUE MAY 21 2013
...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH WEDNESDAY
AFTERNOON...
THE FLASH FLOOD WATCH CONTINUES FOR
* A PORTION OF NORTHEAST NORTH DAKOTA...INCLUDING THE FOLLOWING
AREAS IN PEMBINA COUNTY ALONG THE TONGUE RIVER DOWNSTREAM OF THE
RENWICK DAM...AKRA...CAVALIER AND BATHGATE.
* THROUGH WEDNESDAY AFTERNOON
* WATER REMAINS VERY HIGH AT THE RENWICK DAM AND IS BEING HELD
BACK BY A CONSTRUCTED EARTHEN LEVEE ON TOP OF THE DAM STRUCTURE.
OFFICIALS CONTINUE TO MONITOR THE DAM AND THE NEW CLAY LEVEE FOR
ANY EROSION.
* THERE ARE SEVERAL RETENTION DAMS TO THE WEST OF THE RENWICK
DAM...AND WITH THE LARGE AMOUNT OF WATER IN THE AREA THESE DAMS
HAVE A HIGH POTENTIAL OF FAILING. IF ONE OF THESE OLDER DAMS TO
THE WEST DID FAIL...THE TEMPORARY LEVEE ON TOP OF THE RENWICK
DAM WOULD NO LONGER BE ABLE TO HOLD BACK WATER...AND MAJOR
FLOODING WOULD BE IMMINENT FOR THE CITIES OF
AKRA...CAVALIER...AND BATHGATE.
* PEMBINA COUNTY EMERGENCY MANAGEMENT ANTICIPATES A POSSIBLE
BREACH WITHIN THE NEXT 12 HOURS...AND HAVE ORDERED A MANDATORY
EVACUATION FOR THE AREA IMMEDIATELY DOWNSTREAM OF THE RENWICK
DAM...INCLUDING THE CITY OF CAVALIER.
A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION.
YOU SHOULD MONITOR LATER FORECASTS AND BE PREPARED TO TAKE ACTION
SHOULD FLASH FLOOD WARNINGS BE ISSUED.
TG
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