Alert archive / Louisiana / Flash Flood Warnings in 2009

Flash Flood Warning 59, NWS New Orleans, LA

December 15, 2009Lafourche Parish, Saint Charles Parish, Louisiana

NWS New Orleans, LA issued this flash flood warning at Dec 15, 2009, 7:39 PM CST for Lafourche Parish, Saint Charles Parish, Louisiana. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Dec 15, 2009, 7:39 PM CST (01:39 UTC)
Expired: Dec 15, 2009, 10:30 PM CST
In force: 3 hr
Issued by: NWS New Orleans, LA
Area: Storm-based polygon
Flood severity: None

Counties Lafourche Parish, LA, Saint Charles Parish, LA

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS New Orleans, LA wrote its last area forecast discussion before this flash flood warning went out at Dec 15, 4:20 PM CST, 3 hours 19 minutes earlier.

Area forecast discussion, Dec 15, 4:20 PM CST, 3 hours 19 minutes before

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Hazardous weather outlook, Dec 15, 11:32 AM CST, 8 hours 7 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1132 AM CST TUE DEC 15 2009

GMZ530-550-555-570-575-LAZ034>040-046>050-056>070-MSZ068>071-077-
080>082-161745-
LAKE PONTCHARTRAIN AND LAKE MAUREPAS-
COASTAL WATERS FROM THE SOUTHWEST PASS OF THE MISSISSIPPI RIVER
TO LOWER ATCHAFALAYA RIVER LA OUT 20 NM-
COASTAL WATERS FROM PASCAGOULA MS TO THE SOUTHWEST PASS OF THE
MISSISSIPPI RIVER OUT 20 NM-
COASTAL WATERS FROM THE SOUTHWEST PASS OF THE MISSISSIPPI RIVER
TO LOWER ATCHAFALAYA RIVER LA FROM 20 TO 60 NM-
COASTAL WATERS FROM PASCAGOULA MS TO THE SOUTHWEST PASS OF THE
MISSISSIPPI RIVER FROM 20 TO 60 NM-POINTE COUPEE-WEST FELICIANA-
EAST FELICIANA-ST. HELENA-TANGIPAHOA-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-WILKINSON-AMITE-PIKE-WALTHALL-PEARL RIVER-
HANCOCK-HARRISON-JACKSON-
1132 AM CST TUE DEC 15 2009

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

.DAY ONE...THIS AFTERNOON AND TONIGHT

FLASH FLOODING...
HEAVY RAINS WILL STEADILY TAPER IN INTENSITY AND COVERAGE THROUGH
THE REMAINDER OF THE AFTERNOON INTO THE EARLHY EVENING. SOME AREAS
MAY STILL EXPERIENCE 1 TO 2 INCHES IN HEAVIER BANDS BUT MOST
LOCATIONS SHOULD RANGE ABOUT 1/2 INCH TO 1 INCH FOR THE REMAINDER
OF THE AFTERNOON.

THUNDERSTORMS...
A FEW THUNDERSTORMS THIS AFTERNOON WILL BE CAPABLE OF PRODUCING
WIND GUSTS 30 TO 40 MPH...SMALL HAIL AND VERY HEAVY RAINFALL. DUE
TO SATURATED AND SOGGY GROUND...SHALLOW ROOTED TREES MAY FALL
DURING PERIODS OF HIGH GUSTINESS.

RIVER FLOODING...
MANY RIVERS ACROSS THE OUTLOOK AREA ARE NEAR OR ABOVE FLOOD STAGE.
REFER TO THE LATEST RIVER FLOOD STATEMENTS FOR DETAILS.

MARINE HAZARDS...
A SMALL CRAFT ADVISORY IS IN EFFECT OVER THE TIDAL LAKES AND GULF
WATERS TONIGHT DUE TO EXPECTED STRONG WINDS OF 20 TO 25 KNOTS AND
SEAS BUILDING TO 7 FEET.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

RIVER FLOODING...
MANY AREA RIVERS WILL REMAIN NEAR OR ABOVE FLOOD STAGE. SOME
LOCATIONS ARE FORECAST TO RISE TO MODERATE OR MAJOR FLOOD LEVELS.
PLEASE REFER TO THE LATEST RIVER FLOOD STATEMENTS AND RIVER
FORECASTS FOR MORE DETAILS.

MARINE...
A SMALL CRAFT ADVISORY WILL REMAIN IN EFFECT OVER THE GULF WATERS
THROUGH WEDNESDAY DUE TO EXPECTED STRONG WINDS AND HIGH SEAS.

.SPOTTER INFORMATION STATEMENT...
PLEASE RELAY REPORTS OF STREET FLOODING OR FLASH FLOODING TO THE
NATIONAL WEATHER SERVICE OR LOCAL LAW ENFORCEMENT. THE NATIONAL
WEATHER SERVICE CAN BE REACHED AT 5 0 4 5 2 2 7 3 3 0...OR 9 8 5 6
4 9 0 3 5 7.

24/RR

The office that day

Everything else NWS New Orleans, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 16, 3:50 PM CST	Flash Flood Watch	LIX	Assumption, Saint Bernard, Saint James, Saint John the Baptist	38 hr

Nearby

Flash Flood Warnings in Louisiana, 2009 Every flash flood warning in 2009

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.