weather.gov     
National Weather Service

Watches, Warnings & Advisories
NWS Homepage

2 products issued by NWS for:
Share |


Flash Flood Watch

FLOOD WATCH
NATIONAL WEATHER SERVICE NEW ORLEANS LA
420 AM CDT SAT APR 18 2015

...FLASH FLOOD WATCH IN EFFECT THROUGH THIS EVENING...

.A SLOW MOVING AREA OF LOW PRESSURE MOVING TOWARD THE AREA TODAY
...COUPLED WITH ALREADY SATURATED SOIL CONDITIONS...WILL MAINTAIN
A FLOOD THREAT AS PERIODS OF HEAVY RAINFALL MOVE ACROSS THE REGION
TODAY. THE THREAT FOR FLOODING IS EXPECTED TO DIMINISH SUNDAY.

LAZ034>037-039-040-046>050-056>072-MSZ077-080>082-181730-
/O.CON.KLIX.FF.A.0002.000000T0000Z-150419T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
POINTE COUPEE-WEST FELICIANA-EAST FELICIANA-ST. HELENA-WASHINGTON-
ST. TAMMANY-IBERVILLE-WEST BATON ROUGE-EAST BATON ROUGE-ASCENSION-
LIVINGSTON-ASSUMPTION-ST. JAMES-ST. JOHN THE BAPTIST-
UPPER LAFOURCHE-ST. CHARLES-UPPER JEFFERSON-ORLEANS-
UPPER PLAQUEMINES-UPPER ST. BERNARD-UPPER TERREBONNE-
LOWER TERREBONNE-LOWER LAFOURCHE-LOWER JEFFERSON-
LOWER PLAQUEMINES-LOWER ST. BERNARD-NORTHERN TANGIPAHOA-
SOUTHERN TANGIPAHOA-PEARL RIVER-HANCOCK-HARRISON-JACKSON-
INCLUDING THE CITIES OF...NEW ROADS...LIVONIA...
ST. FRANCISVILLE...JACKSON...CLINTON...GREENSBURG...MONTPELIER...
BOGALUSA...FRANKLINTON...SLIDELL...MANDEVILLE...COVINGTON...
LACOMBE...PLAQUEMINE...WHITE CASTLE...PORT ALLEN...ADDIS...
BRUSLY...BATON ROUGE...GONZALES...DONALDSONVILLE...
DENHAM SPRINGS...WALKER...PIERRE PART...LABADIEVILLE...
PAINCOURTVILLE...LUTCHER...GRAMERCY...LAPLACE...RESERVE...
THIBODAUX...RACELAND...LAROSE...DESTREHAN...NORCO...METAIRIE...
KENNER...NEW ORLEANS...BELLE CHASSE...CHALMETTE...VIOLET...
HOUMA...BAYOU CANE...CHAUVIN...DULAC...MONTEGUT...GALLIANO...
CUT OFF...GOLDEN MEADOW...PORT SULPHUR...EMPIRE...YSCLOSKEY...
AMITE...KENTWOOD...HAMMOND...PONCHATOULA...PICAYUNE...
BAY ST. LOUIS...WAVELAND...DIAMONDHEAD...GULFPORT...BILOXI...
PASCAGOULA...OCEAN SPRINGS...MOSS POINT...GAUTIER...ST. MARTIN
420 AM CDT SAT APR 18 2015

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING...

THE FLASH FLOOD WATCH CONTINUES FOR

* PORTIONS OF SOUTHEAST LOUISIANA AND SOUTHERN MISSISSIPPI...
  INCLUDING THE FOLLOWING AREAS...IN SOUTHEAST LOUISIANA...
  ASCENSION...ASSUMPTION...EAST BATON ROUGE...EAST FELICIANA...
  IBERVILLE...LIVINGSTON...LOWER JEFFERSON...LOWER LAFOURCHE...
  LOWER PLAQUEMINES...LOWER ST. BERNARD...LOWER TERREBONNE...
  NORTHERN TANGIPAHOA...ORLEANS...POINTE COUPEE...SOUTHERN
  TANGIPAHOA...ST. CHARLES...ST. HELENA...ST. JAMES...ST. JOHN
  THE BAPTIST...ST. TAMMANY...UPPER JEFFERSON...UPPER
  LAFOURCHE...UPPER PLAQUEMINES...UPPER ST. BERNARD...UPPER
  TERREBONNE...WASHINGTON...WEST BATON ROUGE AND WEST FELICIANA.
  IN SOUTHERN MISSISSIPPI...HANCOCK...HARRISON... JACKSON AND
  PEARL RIVER.

* THROUGH THIS EVENING

* SEVERAL ROUNDS OF SHOWERS AND THUNDERSTORMS ARE EXPECTED TO MOVE
  ACROSS SOUTHERN MISSISSIPPI AND SOUTHEAST LOUISIANA TODAY. THESE
  THUNDERSTORMS COULD PRODUCE LOCALLY HEAVY RAINFALL TOTALS OF
  ONE TO THREE INCHES...ON TOP OF ALREADY SATURATED SOILS. SOME
  LOCALIZED FLOODING COULD DEVELOP WHERE THESE HEAVIER RAINS FALL.

* AREAS THAT SEE HEAVY RAINFALL WITHIN A SHORT TIME COULD
  RECEIVE FLOOD WATER TO DEPTHS THAT WOULD IMPACT PROPERTY AND
  PEOPLE IN THOSE AREAS. AREA CREEKS...STREAMS AND RIVERS ARE
  ALSO LIKELY TO EXPERIENCE RISES...AND SOME MAY RISE TO
  BANKFULL OR FLOOD LEVELS OVER THE NEXT SEVERAL DAYS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR HEAVY
RAINFALL THAT MAY 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.

&&

$$



Hazardous Weather Outlook

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NEW ORLEANS LA
544 AM CDT SAT APR 18 2015

GMZ530-532-534-536-538-550-552-555-557-570-572-575-577-LAZ034>037-
039-040-046>050-056>072-MSZ068>071-077-080>082-182245-
LAKE PONTCHARTRAIN AND LAKE MAUREPAS-MISSISSIPPI SOUND-
LAKE BORGNE-CHANDELEUR SOUND-BRETON SOUND-
COASTAL WATERS FROM PORT FOURCHON TO LOWER ATCHAFALAYA RIVER OUT
20 NM-
COASTAL WATERS FROM THE SOUTHWEST PASS OF THE MISSISSIPPI RIVER
TO PORT FOURCHON OUT 20 NM-
COASTAL WATERS FROM BOOTHVILLE LA TO THE SOUTHWEST PASS OF THE
MISSISSIPPI RIVER OUT 20 NM-
COASTAL WATERS FROM PASCAGOULA MS TO STAKE ISLAND LA OUT 20 NM-
COASTAL WATERS FROM PORT FOURCHON TO LOWER ATCHAFALAYA RIVER FROM
20 TO 60 NM-
COASTAL WATERS FROM THE SOUTHWEST PASS OF THE MISSISSIPPI RIVER
TO PORT FOURCHON FROM 20 TO 60 NM-
COASTAL WATERS FROM STAKE ISLAND LA TO THE SOUTHWEST PASS OF THE
MISSISSIPPI RIVER FROM 20 TO 60 NM-
COASTAL WATERS FROM PASCAGOULA MS TO STAKE ISLAND LA FROM 20 TO
60 NM-POINTE COUPEE-WEST FELICIANA-EAST FELICIANA-ST. HELENA-
WASHINGTON-ST. TAMMANY-IBERVILLE-WEST BATON ROUGE-
EAST BATON ROUGE-ASCENSION-LIVINGSTON-ASSUMPTION-ST. JAMES-
ST. JOHN THE BAPTIST-UPPER LAFOURCHE-ST. CHARLES-UPPER JEFFERSON-
ORLEANS-UPPER PLAQUEMINES-UPPER ST. BERNARD-UPPER TERREBONNE-
LOWER TERREBONNE-LOWER LAFOURCHE-LOWER JEFFERSON-
LOWER PLAQUEMINES-LOWER ST. BERNARD-NORTHERN TANGIPAHOA-
SOUTHERN TANGIPAHOA-WILKINSON-AMITE-PIKE-WALTHALL-PEARL RIVER-
HANCOCK-HARRISON-JACKSON-
544 AM CDT SAT APR 18 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST
LOUISIANA...SOUTH MISSISSIPPI AND THE ADJACENT COASTAL WATERS.

.DAY ONE...TODAY AND TONIGHT

A FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING.
SEVERAL ROUNDS OF SHOWERS AND THUNDERSTORMS ARE EXPECTED THROUGH
THE DAY. SOME OF THESE THUNDERSTORMS COULD PRODUCE LOCALLY HEAVY
RAINFALL OF 1 TO 3 INCHES. THIS HEAVY RAIN COULD PRODUCE LOCALIZED
FLOODING ISSUES.

A SLIGHT RISK OF SEVERE WEATHER ALSO EXISTS OVER THE AREA TODAY.
THE PRIMARY THREAT FROM ANY SEVERE THUNDERSTORMS WILL BE STRONG
DAMAGING WIND GUSTS AND ISOLATED TORNADOES.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

SCATTERED THUNDERSTORMS WILL BE POSSIBLE WEDNESDAY THROUGH FRIDAY.
THESE THUNDERSTORMS WILL GENERALLY DEVELOP DURING THE LATE
MORNING AND AFTERNOON HOURS BEFORE DISSIPATING IN THE EVENING.
BRIEF HEAVY DOWNPOURS...GUSTY WINDS...AND LIGHTNING STRIKES WILL
BE POSSIBLE FROM THESE THUNDERSTORMS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED. HOWEVER...PLEASE REPORT
ANY FLOODING OR SEVERE WEATHER TO YOUR LOCAL LAW ENFORCEMENT OR
EMERGENCY MANAGEMENT AGENCY.

$$

32



U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: May 16, 2007
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE