Alert archive / Louisiana / River Flood Warnings in 2019

River Flood Warning 75, NWS New Orleans, LA

July 9, 20194 parishes in Louisiana

NWS New Orleans, LA issued this river flood warning at Jul 9, 2019, 2:47 PM CDT for 4 parishes in Louisiana. It took effect at Jul 12, 2019, 1:00 AM CDT. It was in force for 57 hr.

The area

The counties it named.

The facts

Issued: Jul 9, 2019, 2:47 PM CDT (19:47 UTC)
In effect from: Jul 12, 2019, 1:00 AM CDT
Expired: Jul 14, 2019, 10:23 AM CDT
In force: 57 hr
Issued by: NWS New Orleans, LA
Area: Storm-based polygon
Flood severity: Moderate

Counties Jefferson Parish, LA, Orleans Parish, LA, Plaquemines Parish, LA, Saint Bernard Parish, LA

The river

Written for the forecast point Mississippi River at New Orleans (NORL1).

Action stage: 17 ft
Minor stage: 17 ft
Moderate stage: 19 ft
Major stage: 20 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 Jul 9, 11:57 AM CDT, 2 hours 50 minutes earlier.

Area forecast discussion, Jul 9, 11:57 AM CDT, 2 hours 50 minutes before

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Hazardous weather outlook, Jul 9, 4:36 AM CDT, 10 hours 11 minutes before

Hazardous Weather Outlook
National Weather Service New Orleans LA
436 AM CDT Tue Jul 9 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>082-092145-
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-
436 AM CDT Tue Jul 9 2019

This Hazardous Weather Outlook is for portions of Southeast
Louisiana...South Mississippi and the adjacent coastal waters.

.DAY ONE...Today and Tonight

Afternoon highs in the mid to upper 90s and very humid conditions
will maintain afternoon heat index values near 108 degrees. These
conditions can lead to health issues if precautions are not taken.

Isolated to scattered thunderstorms are forecast today. A few
storms could become strong to severe producing gusty winds,
frequent lightning, and locally heavy rainfall.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Scattered thunderstorms are forecast through the remainder of the
week. Although organized severe weather is not expected, a few
storms could become strong to severe and produce gusty winds,
frequent lightning, and locally heavy rainfall.

The Tropical Prediction Center is giving a 40% chance of tropical
development over the next 48 hours and 80% over the next five
days in the northeast Gulf of Mexico. Please refer to the Tropical
Weather Outlook for further information concerning this system.

The tropical system will bring the potential of heavy rainfall
with amounts from 3 to 8 inches possible Friday through Monday.
Coastal flooding will also be possible as tides rise along the
coast up to 2 feet above normal levels starting late Thursday and
lasting into the weekend.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated.

In the hours before

Local storm report, Jul 9, 9:38 AM CDT, 5 hours 9 minutes before

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Local storm report, Jul 9, 9:47 AM CDT, 5 hours before

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Local storm report, Jul 9, 9:53 AM CDT, 4 hours 54 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 8, 7:10 PM CDT	Special Weather Statement	LIX	Saint Helena	35 min
Jul 9, 4:23 AM CDT	Special Marine Warning	LIX		67 min
Jul 9, 5:33 AM CDT	Special Marine Warning	LIX		57 min
Jul 9, 5:36 AM CDT	Special Marine Warning	LIX		54 min
Jul 9, 6:33 AM CDT	Special Marine Warning	LIX		57 min
Jul 9, 6:36 AM CDT	Special Marine Warning	LIX		54 min
Jul 9, 8:26 AM CDT	Special Marine Warning	LIX		34 min
Jul 9, 8:38 AM CDT	Special Marine Warning	LIX		52 min
Jul 9, 9:30 AM CDT	Special Marine Warning	LIX		60 min
Jul 9, 10:30 AM CDT	Special Marine Warning	LIX		45 min
Jul 9, 11:15 AM CDT	Special Marine Warning	LIX		45 min
Jul 9, 5:34 PM CDT	Special Marine Warning	LIX		41 min
Jul 9, 6:01 PM CDT	Severe Thunderstorm Warning	LIX	Orleans, Saint Tammany	29 min
Jul 9, 6:45 PM CDT	Special Marine Warning	LIX		60 min
Jul 9, 6:48 PM CDT	Severe Thunderstorm Warning	LIX	Orleans, Saint Tammany	42 min
Jul 9, 6:52 PM CDT	Special Marine Warning	LIX		38 min
Jul 9, 5:39 PM CDT	Special Weather Statement	LIX	Hancock	66 min
Jul 9, 6:33 PM CDT	Special Weather Statement	LIX	Hancock	42 min

Nearby

River Flood Warnings in Louisiana, 2019 Every 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.