Alert archive / Louisiana / Flash Flood Warnings in 2019

Flash Flood Warning 30, NWS New Orleans, LA

July 14, 20197 parishes in Louisiana

NWS New Orleans, LA issued this flash flood warning at Jul 14, 2019, 3:32 PM CDT for 7 parishes in 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 outline as issued.

The facts

Issued: Jul 14, 2019, 3:32 PM CDT (20:32 UTC)
Expired: Jul 14, 2019, 6:13 PM CDT
In force: 3 hr
Issued by: NWS New Orleans, LA
Area: Storm-based polygon
Flood severity: None

Counties Ascension Parish, LA, Assumption Parish, LA, East Baton Rouge Parish, LA, Iberville Parish, LA, Livingston Parish, LA, Saint Helena Parish, LA, West Baton Rouge Parish, LA

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 8.5 hours before the alert went out and 133 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 2565 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 547 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: 55 m²/s²
0-3 km storm-relative helicity: 79 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.6

Open this sounding in Storm Lab

The text

As transmitted.

601 
WGUS54 KLIX 142032
FFWLIX
LAC005-007-033-047-063-091-121-142330-
/O.NEW.KLIX.FF.W.0030.190714T2032Z-190714T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service New Orleans LA
332 PM CDT Sun Jul 14 2019

The National Weather Service in New Orleans has issued a

* Flash Flood Warning for...
  Western Ascension Parish in southeastern Louisiana...
  Southeastern West Baton Rouge Parish in southeastern Louisiana...
  Southwestern St. Helena Parish in southeastern Louisiana...
  Northwestern Livingston Parish in southeastern Louisiana...
  Southeastern Iberville Parish in southeastern Louisiana...
  Central East Baton Rouge Parish in southeastern Louisiana...
  Northwestern Assumption Parish in southeastern Louisiana...

* Until 630 PM CDT.

* At 331 PM CDT, Doppler radar indicated heavy rain across the warned
  area. Up to two inches of rain have already fallen. Flash flooding
  is expected to begin shortly.

* Some locations that will experience flooding include...
  Baton Rouge, Denham Springs, Gonzales, Donaldsonville, Oak Hills
  Place, St. Gabriel, Walker, White Castle, Westminster, Geismer, Old
  Jefferson, Merrydale, Inniswold, Watson, Prairieville, Village St.
  George, Shenandoah, Gardere, Greenwell Spring and Carville.

Additional rainfall amounts of 2 to 4 inches are possible in the 
warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.

&&

LAT...LON 3064 9106 3072 9088 3072 9085 3074 9084
      3077 9077 3061 9073 2983 9114 2985 9118
      2997 9126 3000 9126 3000 9123 3004 9122
      3003 9124 3006 9127 3006 9131

$$

24/RR

1 follow-up statement

962 
WGUS74 KLIX 142313
FFSLIX

Flash Flood Statement
National Weather Service New Orleans LA
613 PM CDT Sun Jul 14 2019

LAC005-007-033-047-063-091-121-142323-
/O.CAN.KLIX.FF.W.0030.000000T0000Z-190714T2330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Ascension LA-West Baton Rouge LA-St. Helena LA-Livingston LA-
Iberville LA-East Baton Rouge LA-Assumption LA-
613 PM CDT Sun Jul 14 2019

...THE FLASH FLOOD WARNING FOR WESTERN ASCENSION...SOUTHEASTERN WEST
BATON ROUGE...SOUTHWESTERN ST. HELENA...NORTHWESTERN LIVINGSTON...
SOUTHEASTERN IBERVILLE...CENTRAL EAST BATON ROUGE AND NORTHWESTERN
ASSUMPTION PARISHES IS CANCELLED...

The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed any remaining road closures.

LAT...LON 3064 9106 3072 9088 3072 9085 3074 9084
      3077 9077 3061 9073 2983 9114 2985 9118
      2997 9126 3000 9126 3000 9123 3004 9122
      3003 9124 3006 9127 3006 9131

$$

24/RR

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 Jul 14, 12:38 PM CDT, 2 hours 54 minutes earlier.

Area forecast discussion, Jul 14, 12:38 PM CDT, 2 hours 54 minutes before

Area Forecast Discussion
National Weather Service New Orleans LA
1238 PM CDT Sun Jul 14 2019

.AVIATION...Prevailing MVFR conditions are expected at the
majority of the terminals through the entire forecast period.
Occasional periods of IFR visibilities will accompany passing
heavier rain showers through 12z, but the overall duration of
these impacts will be too limited to include in the forecast.  32

&&

.PRELIMINARY POINT TEMPS/POPS...
MCB  73  83  73  90 /  90  70  30  40
BTR  74  84  75  90 /  90  70  30  40
ASD  74  87  75  90 /  80  60  30  40
MSY  77  88  78  89 /  80  50  30  40
GPT  75  87  75  89 /  80  50  30  30
PQL  74  88  75  89 /  80  50  30  30

&&

.LIX WATCHES/WARNINGS/ADVISORIES...
LA...Flash Flood Watch until 7 PM CDT this evening for LAZ034>037-039-
     040-046>050-056>072.

     Coastal Flood Advisory until 4 PM CDT this afternoon for LAZ040-
     050-058-060>062-064-066>070-072.

GM...Small Craft Advisory until 7 PM CDT this evening for GMZ550-552-
     570-572.

MS...Flash Flood Watch until 7 PM CDT this evening for MSZ068>071-077-
     080>082.

GM...Small Craft Advisory until 7 PM CDT this evening for GMZ552-570-
     572.

&&

Hazardous weather outlook, Jul 14, 2:59 AM CDT, 12 hours 33 minutes before

Hazardous Weather Outlook
National Weather Service New Orleans LA
259 AM CDT Sun Jul 14 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>082-142000-
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-
259 AM CDT Sun Jul 14 2019

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

.DAY ONE...Tonight

A Flash Flood Watch remains in effect for the entire outlook area
through this evening, and may be extended in time for portions of
the area into tonight. Bands of tropical showers and storms
at times will be capable of producing torrential rainfall, gusty
winds 35 to 50 mph and occasional lightning. Flash flooding may
result under these bands.

There is a marginal risk of severe thunderstorms today and
tonight. The primary concern will be brief, weak tornadoes within
the bands of rain. Waterspouts in the near shore waters may move
ashore in the coastal areas before dissipating.

A Coastal Flood Advisory is in effect for minor and slowly
improving coastal flooding along the Louisiana coast and tidal
lakes today. Abnormally high tides 1 to less than 3 feet above
normal will be common this morning, but improving after high tide
this afternoon.

A Small Craft Advisory is in effect for the coastal waters and
tidal lakes through 7 am CDT this morning.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

There will still be a threat of heavy rainfall from lingering
rain bands Monday. The outlook area should transition to a more
typical summer pattern of daily scattered afternoon thunderstorms
Tuesday through Saturday.

Depending on short-term rainfall trends, several area rivers and
streams may be in flood. Refer to the latest river flood
statements for more details.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is still requested for flash flood monitoring
today.

24/RR

In the hours before

Local storm report, Jul 14, 11:38 AM CDT, 3 hours 54 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1138 AM CDT SUN JUL 14 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0812 AM     TORNADO          1 W WATSON              30.58N 90.97W
07/14/2019                   LIVINGSTON         LA   BROADCAST MEDIA

            A FEW TREES DOWN ALONG BEND ROAD IN WATSON. LIKELY
            TORNADO.

&&

CBANNAN

Local storm report, Jul 14, 12:11 PM CDT, 3 hours 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1211 PM CDT SUN JUL 14 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1018 AM     TSTM WND DMG     ZACHARY                 30.66N 91.15W
07/14/2019                   EAST BATON ROUGE   LA   PUBLIC

            A FEW TREES DOWN IN ZACHARY.

&&

CBANNAN

Local storm report, Jul 14, 1:14 PM CDT, 2 hours 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
114 PM CDT SUN JUL 14 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1041 AM     TSTM WND DMG     3 ESE BATON ROUGE       30.43N 91.08W
07/14/2019                   EAST BATON ROUGE   LA   BROADCAST MEDIA

            LARGE TREE DOWN ALONG ESSEN BETWEEN THE 10/12 SPLIT.

&&

CBANNAN

Local storm report, Jul 14, 1:16 PM CDT, 2 hours 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
116 PM CDT SUN JUL 14 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1041 AM     TSTM WND DMG     6 SE BATON ROUGE        30.39N 91.05W
07/14/2019                   EAST BATON ROUGE   LA   BROADCAST MEDIA

            TREES DOWN ON HIGHLAND BETWEEN SIEGEN AND BLUEBONNET.

&&

CBANNAN

Local storm report, Jul 14, 2:01 PM CDT, 1 hour 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
201 PM CDT SUN JUL 14 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1013 AM     TSTM WND DMG     1 E JACKSON             30.83N 91.19W
07/14/2019                   EAST FELICIANA     LA   LAW ENFORCEMENT

            TREE DOWN BLOCKING COLLEGE ST IN JACKSON JUST NORTH OF
            LA-10

&&

CBANNAN

Local storm report, Jul 14, 2:18 PM CDT, 1 hour 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NEW ORLEANS LA
218 PM CDT SUN JUL 14 2019

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1026 AM     TSTM WND DMG     2 SW BATON ROUGE        30.43N 91.15W
07/14/2019                   EAST BATON ROUGE   LA   PUBLIC

            SCATTERED TREE DAMAGE ACROSS LSU CAMPUS. RELAYED VIA
            SOCIAL MEDIA.

&&

CBANNAN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 13, 7:14 PM CDT	Special Weather Statement	LIX	Jefferson, Orleans	61 min
Jul 13, 7:36 PM CDT	Tornado Warning	LIX	Jefferson, Orleans, Plaquemines, Saint Bernard	24 min
Jul 13, 7:39 PM CDT	Tornado Warning	LIX	Jefferson, Plaquemines	36 min
Jul 13, 7:45 PM CDT	Areal Flood Advisory	LIX	Jefferson, Orleans, Plaquemines, Saint Bernard	2 hr
Jul 13, 8:00 PM CDT	Flash Flood Warning	LIX	Jefferson, Orleans, Plaquemines, Saint Bernard	94 min
Jul 13, 8:18 PM CDT	Tornado Warning	LIX	Orleans, Saint Bernard	27 min
Jul 13, 8:22 PM CDT	Tornado Warning	LIX	Washington	23 min
Jul 13, 8:29 PM CDT	Areal Flood Advisory	LIX	Saint Tammany	2 hr
Jul 14, 7:54 AM CDT	Severe Thunderstorm Warning	LIX	East Baton Rouge, East Feliciana, Livingston, Saint Helena	36 min
Jul 14, 7:57 AM CDT	Tornado Warning	LIX	East Baton Rouge, Livingston, Saint Helena	33 min
Jul 14, 8:40 AM CDT	Tornado Warning	LIX	Saint Helena, Tangipahoa	35 min
Jul 14, 8:55 AM CDT	Tornado Warning	LIX	East Feliciana	20 min
Jul 14, 9:08 AM CDT	Tornado Warning	LIX	Livingston	22 min
Jul 14, 9:25 AM CDT	Areal Flood Advisory	LIX	East Baton Rouge, East Feliciana, Iberville, Pointe Coupee, West Baton Rouge, West Feliciana	2 hr
Jul 14, 9:32 AM CDT	Tornado Warning	LIX	Livingston	13 min
Jul 14, 9:45 AM CDT	Severe Thunderstorm Warning	LIX	Livingston, Saint Helena, Tangipahoa	30 min
Jul 14, 9:58 AM CDT	Severe Thunderstorm Warning	LIX	Saint Helena, Tangipahoa	47 min
Jul 14, 10:07 AM CDT	Tornado Warning	LIX	Ascension, East Baton Rouge, Iberville, Livingston	23 min
Jul 14, 10:12 AM CDT	Severe Thunderstorm Warning	LIX	East Baton Rouge, East Feliciana, West Baton Rouge	48 min
Jul 14, 10:17 AM CDT	Tornado Warning	LIX	East Baton Rouge, East Feliciana	13 min
Jul 14, 10:27 AM CDT	Special Marine Warning	LIX		63 min
Jul 14, 10:27 AM CDT	Tornado Warning	LIX	Ascension, East Baton Rouge, Livingston	33 min
Jul 14, 10:29 AM CDT	Tornado Warning	LIX	Tangipahoa, Washington	16 min
Jul 14, 10:35 AM CDT	Small Craft Advisory	LIX		8 hr
Jul 14, 10:38 AM CDT	Areal Flood Advisory	LIX	Ascension, Assumption, East Baton Rouge, East Feliciana, Iberville, West Baton Rouge	112 min
Jul 14, 10:52 AM CDT	Severe Thunderstorm Warning	LIX	Saint Charles	23 min
Jul 14, 10:53 AM CDT	Tornado Warning	LIX	East Baton Rouge, East Feliciana, Livingston, Saint Helena	37 min
Jul 14, 11:04 AM CDT	Tornado Warning	LIX	East Baton Rouge, Livingston	26 min
Jul 14, 11:21 AM CDT	Severe Thunderstorm Warning	LIX	East Baton Rouge, East Feliciana, Livingston, Saint Helena	39 min
Jul 14, 11:35 AM CDT	Severe Thunderstorm Warning	LIX	East Feliciana, Saint Helena	40 min
Jul 14, 12:28 PM CDT	Severe Thunderstorm Warning	LIX	East Baton Rouge, East Feliciana, Livingston, Saint Helena	32 min
Jul 14, 12:32 PM CDT	Tornado Warning	LIX	Saint Helena	13 min
Jul 14, 12:35 PM CDT	Flash Flood Warning	LIX	Ascension, East Baton Rouge, Iberville, Livingston, Saint Helena	3 hr
Jul 14, 1:04 PM CDT	Severe Thunderstorm Warning	LIX	Saint Helena, Tangipahoa	41 min
Jul 14, 1:55 PM CDT	Areal Flood Advisory	LIX	Saint Tammany	2 hr
Jul 14, 5:16 PM CDT	Special Weather Statement	LIX	Ascension	29 min
Jul 14, 5:57 PM CDT	Special Weather Statement	LIX	Saint James	33 min
Jul 14, 6:22 PM CDT	Special Weather Statement	LIX	Saint Helena	38 min

Nearby

Flash Flood Warnings in Louisiana, 2019 Every flash 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 sounding from the Mesonet's radiosonde archive.