Alert archive / Louisiana / River Flood Warnings in 2019

River Flood Warning 56, NWS New Orleans, LA

May 10, 2019Iberville Parish, Louisiana

NWS New Orleans, LA issued this river flood warning at May 10, 2019, 11:31 AM CDT for Iberville Parish, Louisiana. It took effect at May 11, 2019, 1:00 AM CDT. It was in force for 36 days.

The area

The counties it named.

The facts

Issued
May 10, 2019, 11:31 AM CDT (16:31 UTC)
In effect from
May 11, 2019, 1:00 AM CDT
Expired
Jun 16, 2019, 10:59 AM CDT
In force
36 days
Issued by
NWS New Orleans, LA
Area
Storm-based polygon
Flood severity
Minor

County Iberville Parish, LA

The river

Written for the forecast point Atchafalaya River at Bayou Sorrel Lock (BSRL1).

Action stage
10 ft
Minor stage
12 ft
Moderate stage
18 ft
Major stage
30 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river 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 river flood warning went out at May 10, 11:21 AM CDT, 10 minutes earlier.

Area forecast discussion, May 10, 11:21 AM CDT, 10 minutes before
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Hazardous weather outlook, May 10, 5:22 AM CDT, 6 hours 9 minutes before
Hazardous Weather Outlook...UPDATED
National Weather Service New Orleans LA
522 AM CDT Fri May 10 2019

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>082-102230-
Lake Pontchartrain and Lake Maurepas-Mississippi Sound-
Lake Borgne-Chandeleur Sound-Breton Sound-
Coastal Waters from Port Fourchon LA to Lower Atchafalaya River
LA out 20 nm-
Coastal waters from the Southwest Pass of the Mississippi River
to Port Fourchon Louisiana out 20 NM-
Coastal Waters from Boothville LA to Southwest Pass of the
Mississippi River out 20 nm-
Coastal waters from Pascagoula Mississippi to Stake Island out
20 NM-
Coastal waters from Port Fourchon Louisiana to Lower Atchafalaya
River LA from 20 to 60 NM-
Coastal waters from Southwest Pass of the Mississippi River to
Port Fourchon Louisiana from 20 to 60 NM-
Coastal Waters from Stake Island LA to Southwest Pass of the
Mississippi River from 20 to 60 nm-
Coastal waters from Pascagoula Mississippi to Stake Island
Louisiana out 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-
522 AM CDT Fri May 10 2019

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 is in effect today and tonight for southern
Mississippi, and southeast Louisiana except the immediate
Louisiana coast. Areas in the watch could potentially see an
additional 2 to 4 inches of rain today and tonight.

In addition, there is a marginal risk of severe thunderstorms.
the primary threats will be damaging wind gusts. Waterspouts will
also be possible over the area tidal lakes, bays and near shore
waters.

A Small Craft Advisory is in effect for the coastal waters due to
high winds generated from thunderstorm complexes moving through
the coastal waters. After the storms move through, there is a
potential of much higher winds 50 to 70 knots in a narrow
corridor over the coastal waters for a couple of hours.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

Showers and thunderstorms are expected each day at least through
Monday, possibly longer. Each round of thunderstorms could
potentially produce severe weather and heavy rainfall. Depending
on how much rain occurs in the short term, and placement of
certain weather elements in coming days, the Flash Flood Watch
may need to be extended in time and adjusted in area in coming
days.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed through the weekend, possibly
into early next week, depending on rainfall and flood
developments.

24/RR

In the hours before

Special weather statement, May 10, 6:59 AM CDT, 4 hours 32 minutes before
Special Weather Statement
National Weather Service New Orleans LA
659 AM CDT Fri May 10 2019

LAZ034>036-046>050-056-057-059-101315-
Iberville-Livingston-Ascension-East Feliciana-Pointe
Coupee-Assumption-West Baton Rouge-Upper Lafourche-St. James-East
Baton Rouge-West Feliciana-
659 AM CDT Fri May 10 2019

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT ASCENSION...ST.
JAMES...SOUTHEASTERN WEST FELICIANA...WEST BATON ROUGE...SOUTHERN
POINTE COUPEE...SOUTHWESTERN LIVINGSTON...SOUTHWESTERN EAST
FELICIANA...IBERVILLE...NORTHWESTERN LAFOURCHE...EAST BATON ROUGE AND
ASSUMPTION PARISHES...

At 659 AM CDT, radar indicated strong thunderstorms were located
along a line extending from near Port Barre to near Butte La Rose to
near Loreauville to Baldwin. Movement was east at 35 mph.

Winds in excess of 40 mph are possible with these storms.

Locations impacted include...
Baton Rouge, Zachary, Thibodaux, Baker, Denham Springs, Gonzales,
Donaldsonville, Plaquemine, Port Allen, New Roads, Napoleonville, Oak
Hills Place, St. Gabriel, Walker, Addis, Brusly, White Castle,
Livonia, Sorrento and French Settlement.

Torrential rainfall is also occurring with these storms, and may
cause localized flooding. Do not drive your vehicle through flooded
roadways.

These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

LAT...LON 3063 9175 3076 9114 3035 9076 3015 9085
      2983 9062 2980 9110 2984 9113 2985 9118
      2997 9126 3004 9122 3006 9137 3010 9138
      3010 9146 3023 9148 3026 9159 3036 9164
      3044 9164 3050 9171 3050 9175 3051 9173
TIME...MOT...LOC 1159Z 260DEG 30KT 3053 9190 3024 9163 3003 9172 2983
9157

24/RR
Special weather statement, May 10, 8:07 AM CDT, 3 hours 24 minutes before
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Special weather statement, May 10, 9:31 AM CDT, 2 hours before
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Local storm report, May 10, 9:34 AM CDT, 1 hour 57 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 9, 7:03 PM CDTSpecial Weather StatementLIXIberville42 min
May 9, 7:19 PM CDTSpecial Marine WarningLIX41 min
May 9, 7:24 PM CDTSpecial Weather StatementLIXAscension51 min
May 9, 7:37 PM CDTSevere Thunderstorm WarningLIXAscension, Assumption, Iberville, Saint James38 min
May 9, 8:08 PM CDTSpecial Marine WarningLIX52 min
May 9, 8:15 PM CDTSevere Thunderstorm WarningLIXAscension, Iberville, Livingston, Saint James, Saint John the Baptist30 min
May 9, 8:41 PM CDTSevere Thunderstorm WarningLIXAscension, Livingston, Saint James, Saint John the Baptist, Tangipahoa34 min
May 9, 8:44 PM CDTSpecial Marine WarningLIX46 min
May 9, 8:45 PM CDTSpecial Weather StatementLIXIberville45 min
May 9, 9:14 PM CDTSpecial Weather StatementLIXTangipahoa46 min
May 9, 9:30 PM CDTSpecial Weather StatementLIXAscension30 min
May 9, 10:06 PM CDTSmall Craft AdvisoryLIX12 hr
May 9, 10:09 PM CDTSpecial Weather StatementLIXIberville, West Baton Rouge51 min
May 9, 10:24 PM CDTSevere Thunderstorm WarningLIXEast Baton Rouge, Iberville, West Baton Rouge51 min
May 9, 11:58 PM CDTAreal Flood AdvisoryLIXEast Baton Rouge, East Feliciana, Iberville, Livingston, Saint Helena, West Baton Rouge62 min
May 10, 12:21 AM CDTRiver Flood WarningLIXEast Baton Rouge67 hr
May 10, 12:26 AM CDTRiver Flood WarningLIXEast Baton Rouge, Livingston4 days
May 10, 12:26 AM CDTRiver Flood WarningLIXEast Baton Rouge5 days
May 10, 12:28 AM CDTRiver Flood WarningLIXTangipahoa5 days
May 10, 12:29 AM CDTRiver Flood WarningLIXSaint Tammany4 days
May 10, 5:03 AM CDTAreal Flood AdvisoryLIXEast Baton Rouge, East Feliciana, Iberville, Pointe Coupee, West Baton Rouge, West Feliciana3 hr
May 10, 6:59 AM CDTSpecial Weather StatementLIXAscension, Assumption, East Baton Rouge, Iberville, Saint James, West Baton Rouge76 min
May 10, 7:36 AM CDTRiver Flood WarningLIXSaint Tammany3 days
May 10, 7:36 AM CDTRiver Flood WarningLIXSaint Tammany5 days
May 10, 7:36 AM CDTRiver Flood WarningLIXSaint Tammany14 hr
May 10, 7:45 AM CDTSpecial Marine WarningLIX2 hr
May 10, 7:58 AM CDTFlash Flood WarningLIXAscension, Assumption, East Baton Rouge, East Feliciana, Iberville, Livingston and 3 more2 hr
May 10, 8:07 AM CDTSpecial Weather StatementLIXAscension, Assumption, Saint James, Terrebonne53 min
May 10, 8:24 AM CDTRiver Flood WarningLIXSaint Helena3 days
May 10, 8:55 AM CDTSevere Thunderstorm WarningLIXAscension, Assumption, Lafourche, Livingston, Saint Charles, Saint James and 2 more50 min
May 10, 9:31 AM CDTSpecial Weather StatementLIXLafourche, Saint Charles, Saint John the Baptist44 min
May 10, 9:39 AM CDTSpecial Marine WarningLIX66 min
May 10, 10:05 AM CDTAreal Flood AdvisoryLIXAscension, East Baton Rouge, Livingston, West Baton Rouge55 min
May 10, 10:54 AM CDTRiver Flood WarningLIXJefferson, Orleans, Plaquemines, Saint Bernard25 days
May 10, 5:28 PM CDTSpecial Marine WarningLIX62 min
May 9, 8:35 PM CDTRiver Flood WarningLIXPearl River5 days
May 10, 11:01 AM CDTRiver Flood WarningLIXHarrison4 days

Nearby

River Flood Warnings in Louisiana, 2019Every river flood warning in 2019

Sources

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