Alert archive / Louisiana / Coastal Flood Warnings in 2017

Coastal Flood Warning 2, NWS Lake Charles, LA

June 22, 2017Cameron Parish, Louisiana

NWS Lake Charles, LA issued this coastal flood warning at Jun 22, 2017, 10:57 AM CDT for Cameron Parish, Louisiana. It was in force for 8 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: Jun 22, 2017, 10:57 AM CDT (15:57 UTC)
Expired: Jun 22, 2017, 7:00 PM CDT
In force: 8 hr
Issued by: NWS Lake Charles, LA

County Cameron Parish, LA

The radar

The Lake Charles radar (KLCH), 31 km from the middle of the area, began a volume at 15:55 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 4.0 hours before the alert went out and 340 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: 951 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 549 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 272 m²/s²
0-3 km storm-relative helicity: 287 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 10.6

Open this sounding in Storm Lab

What forecasters said that day

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

NWS Lake Charles, LA wrote its last area forecast discussion before this coastal flood warning went out at Jun 22, 6:37 AM CDT, 4 hours 20 minutes earlier.

Area forecast discussion, Jun 22, 6:37 AM CDT, 4 hours 20 minutes before

Area Forecast Discussion
National Weather Service Lake Charles LA
637 AM CDT Thu Jun 22 2017

.DISCUSSION...
For the 22/12Z TAF issuance.

&&

.AVIATION...
The center of Tropical Storm Cindy is moving through Southwest
Louisiana and will continue to move just east of the Sabine River
through the day. Rain bands around the system will affect the
terminals, with gusty winds and occasional moderate to heavy
rainfall. MVFR to IFR conditions will occur through the day.
Improvement is noted after 23/00Z with conditions up to VFR
possible.

Rua

&&

.PREV DISCUSSION... /issued 525 AM CDT Thu Jun 22 2017/

DISCUSSION...
Per the latest update from the National Hurricane Center, Tropical
Storm Cindy made landfall between Cameron and Port Arthur during
the early morning hours this morning. Cindy is currently moving to
the north and a turn toward the northeast is expected throughout
the day today.

The primary threat for our region today will continue to be the
potential for heavy rainfall associated with the tropical
rainbands to produce flash flooding. Three to five inches of
rainfall with localized higher amounts will be possible with the
stronger rainbands.

Tropical storm force wind gusts will be the secondary hazard for
the region today. Tropical Storm Cindy is forecast to quickly
weaken through the day as the center moves onshore. Therefore,
the likelihood of tropical storm force winds will steadily decline
throughout the day. However, the pressure gradient over the
region will result in winds of 20-30 MPH continuing through this
evening. A Wind Advisory is in effect for the inland portions of
CWA and will likely be expanded to include areas currently covered
by the Tropical Storm Warning if/when it is dropped later on
today. The steady southerly fetch of winds to the east of the
center of circulation will also result in continued minor coastal
flooding.

In addition to heavy rains and gusty winds, there will also be a
tornado threat with the tropical rainbands progressing across the
region today. While it can't be ruled out for the entire area,
the greatest potential for a tornado will be for areas east of a
line extending roughly from Gueydan north to Alexandria.

The remnants of Cindy are forecast to lift out of the region this
evening and into the Tennessee River Valley by Friday afternoon.
However, abundant tropical moisture will remain in place through
the weekend resulting in elevated chances for showers and
thunderstorms.

MARINE...
The center of Tropical Storm Cindy has made landfall this morning
and will continue to lift to the north and northeast through
today. However, a strong pressure gradient will result in winds
and seas remaining elevated. Small Craft Advisory criteria
conditions are expected over the coastal waters and inland bays
and lakes through at least Friday morning. The pressure gradient
is expected to decrease through the day on Friday resulting in
improving conditions over the coastal waters.

&&

.PRELIMINARY POINT TEMPS/POPS...
AEX  82  76  85  75 /  90  70  70  60
LCH  82  80  88  77 /  90  60  60  50
LFT  83  77  86  76 /  90  50  60  40
BPT  82  79  88  77 /  80  60  50  40

&&

.LCH WATCHES/WARNINGS/ADVISORIES...
LA...Flash Flood Watch through this evening for LAZ027>033-041>045-
     052>055-073-074.

     Tropical Storm Warning for LAZ041>045-052>055-073-074.

     Wind Advisory until 7 PM CDT this evening for LAZ027>033.

TX...Flash Flood Watch through this evening for TXZ180-201-215-216-
     259>262.

     Tropical Storm Warning for TXZ201-215-216-261-262.

     Wind Advisory until 7 PM CDT this evening for TXZ180-259-260.

GM...Tropical Storm Warning for GMZ430-432-435-450-452-455-470-472-
     475.

     Small Craft Advisory from 7 PM this evening to 7 AM CDT Friday
     for GMZ430-432-435-450-452-455-470-472-475.

&&

AVIATION...07

Hazardous weather outlook, Jun 22, 5:45 AM CDT, 5 hours 12 minutes before

Hazardous Weather Outlook
National Weather Service Lake Charles LA
545 AM CDT Thu Jun 22 2017

LAZ027>033-041>045-052>055-073-074-TXZ180-201-215-216-259>262-
231045-
Vernon-Rapides-Avoyelles-Beauregard-Allen-Evangeline-St. Landry-
Calcasieu-Jefferson Davis-Acadia-Lafayette-Upper St. Martin-
Vermilion-Iberia-St. Mary-Lower St. Martin-West Cameron-
East Cameron-Tyler-Hardin-Jefferson-Orange-Northern Jasper-
Northern Newton-Southern Jasper-Southern Newton-
545 AM CDT Thu Jun 22 2017

This Hazardous Weather Outlook is for portions of central
Louisiana, south central Louisiana, southwest Louisiana, west
central Louisiana, and southeast Texas.

.DAY ONE...Today and Tonight

Heavy rainfall and flooding will be possible with the stronger
tropical rainbands impacting the region. In addition, the tropical
rain bands will be capable of producing tropical storm force wind
gusts and one or two tornadoes.

Elevated southerly winds will result in continued coastal flooding
across portions of Louisiana through the day today.

For more detailed information about specific hazards, please
consult www.weather.gov/lch

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

There will be a chance of showers and thunderstorms each day
Friday through Wednesday.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to relay reports of significant weather
impacts to the National Weather Service.

GMZ430-432-435-450-452-455-470-472-475-231045-
Sabine Lake-Calcasieu Lake-Vermilion Bay-
Coastal waters from Cameron LA to High Island TX out 20 NM-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
Coastal waters from Lower Atchafalaya River to Intracoastal City
LA out 20 NM-
Waters from Cameron LA to High Island TX from 20 to 60 NM-
Waters from  Intracoastal City to Cameron LA from 20 to 60 NM-
Waters from Lower Atchafalaya River to Intracoastal City LA from
20 to 60 NM-
545 AM CDT Thu Jun 22 2017

This Hazardous Weather Outlook is for portions of Gulf of Mexico.

.DAY ONE...Today and Tonight

Tropical storm force winds and elevated seas are expected to
continue over the coastal waters today and tonight.

For more detailed information about specific hazards, please
consult www.weather.gov/lch

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Small Craft Advisory conditions are expected to persist through at
least Friday morning across the coastal waters. Winds and seas are
expected to improve by Friday night.

There will also be a chance for showers and thunderstorms over
the coastal waters each day Friday through Wednesday.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to relay reports of significant weather
impacts to the National Weather Service.

In the hours before

Local storm report, Jun 22, 5:49 AM CDT, 5 hours 8 minutes before

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Local storm report, Jun 22, 5:50 AM CDT, 5 hours 7 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE LAKE CHARLES LA
550 AM CDT THU JUN 22 2017

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

0348 AM     TROPICAL STORM   3 SW CAMERON            29.77N 93.34W
06/22/2017                   CAMERON            LA   C-MAN STATION

            NOS GAUGE AT CALCASIEU PASS MEASURED SUSTAINED WIND AT 35
            KNOTS...40 MPH...WITH GUST TO 39 KNOTS...45 MPH.

0430 AM     COASTAL FLOOD    CAMERON                 29.80N 93.30W
06/22/2017                   CAMERON            LA   BROADCAST MEDIA

            VIDEO FROM LOCAL MEDIA SHOWS WATER ACROSS HIGHWAY 27 IN
            CAMERON. NOS GAUGE AT CALCASIEU PASS RECORDED THE ACTUAL
            TIDE HEIGHT OF 4.87 FEET MLLW AT 148 AM AND HAS BEEN
            ABOVE 4 FEET MLLW SINCE MIDNIGHT.

0500 AM     TROPICAL STORM   3 SW CAMERON            29.77N 93.34W
06/22/2017                   CAMERON            LA   C-MAN STATION

            NOS GAUGE AT CALCASIEU PASS MEASURED SUSTAINED WIND AT 34
            KNOTS...39 MPH...WITH GUST TO 43 KNOTS...49 MPH.

0524 AM     TROPICAL STORM   3 SW CAMERON            29.77N 93.34W
06/22/2017                   CAMERON            LA   C-MAN STATION

            NOS GAUGE AT CALCASIEU PASS MEASURED SUSTAINED WIND AT 37
            KNOTS...43 MPH...WITH GUST TO 47 KNOTS...54 MPH.

&&

JRUA

Local storm report, Jun 22, 6:44 AM CDT, 4 hours 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
644 AM CDT THU JUN 22 2017

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

0620 AM     TROPICAL STORM   1 ESE LAKE CHARLES REGI 30.12N 93.21W
06/22/2017                   CALCASIEU          LA   ASOS

            KLCH ASOS MEASURED SUSTAINED WINDS OF 35 KNOTS...40
            MPH...AND GUST TO 45 KNOTS...52 MPH.

&&

JRUA

Local storm report, Jun 22, 6:49 AM CDT, 4 hours 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
649 AM CDT THU JUN 22 2017

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

0536 AM     TROPICAL STORM   3 SW CAMERON            29.77N 93.34W
06/22/2017                   CAMERON            LA   C-MAN STATION

            NOS GAUGE AT CALCASIEU PASS MEASURED SUSTAINED WINDS OF
            42 KNOTS...48 MPH...AND GUST TO 54 KNOTS...62 MPH.

&&

JRUA

Local storm report, Jun 22, 6:50 AM CDT, 4 hours 7 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE LAKE CHARLES LA
650 AM CDT THU JUN 22 2017

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

0348 AM     TROPICAL STORM   3 SW CAMERON            29.77N 93.34W
06/22/2017                   CAMERON            LA   C-MAN STATION

            NOS GAUGE AT CALCASIEU PASS MEASURED SUSTAINED WIND AT 35
            KNOTS...40 MPH...WITH GUST TO 39 KNOTS...45 MPH.

0430 AM     COASTAL FLOOD    CAMERON                 29.80N 93.30W
06/22/2017                   CAMERON            LA   BROADCAST MEDIA

            VIDEO FROM LOCAL MEDIA SHOWS WATER ACROSS HIGHWAY 27 IN
            CAMERON. NOS GAUGE AT CALCASIEU PASS RECORDED THE ACTUAL
            TIDE HEIGHT OF 4.87 FEET MLLW AT 148 AM AND HAS BEEN
            ABOVE 4 FEET MLLW SINCE MIDNIGHT.

0500 AM     TROPICAL STORM   3 SW CAMERON            29.77N 93.34W
06/22/2017                   CAMERON            LA   C-MAN STATION

            NOS GAUGE AT CALCASIEU PASS MEASURED SUSTAINED WIND AT 34
            KNOTS...39 MPH...WITH GUST TO 43 KNOTS...49 MPH.

0524 AM     TROPICAL STORM   3 SW CAMERON            29.77N 93.34W
06/22/2017                   CAMERON            LA   C-MAN STATION

            NOS GAUGE AT CALCASIEU PASS MEASURED SUSTAINED WIND AT 37
            KNOTS...43 MPH...WITH GUST TO 47 KNOTS...54 MPH.

0536 AM     TROPICAL STORM   3 SW CAMERON            29.77N 93.34W
06/22/2017                   CAMERON            LA   C-MAN STATION

            NOS GAUGE AT CALCASIEU PASS MEASURED SUSTAINED WINDS OF
            42 KNOTS...48 MPH...AND GUST TO 54 KNOTS...62 MPH.

0620 AM     TROPICAL STORM   1 ESE LAKE CHARLES REGI 30.12N 93.21W
06/22/2017                   CALCASIEU          LA   ASOS

            KLCH ASOS MEASURED SUSTAINED WINDS OF 35 KNOTS...40
            MPH...AND GUST TO 45 KNOTS...52 MPH.

&&

JRUA

Local storm report, Jun 22, 7:17 AM CDT, 3 hours 40 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAKE CHARLES LA
717 AM CDT THU JUN 22 2017

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

0650 AM     TROPICAL STORM   4 ESE LAKE CHARLES      30.20N 93.14W
06/22/2017                   CALCASIEU          LA   AWOS

            THE AWOS AT CHENAULT AIRPORT...KCWF...MEASURED SUSTAINED
            WIND AT 35 KNOTS...40 MPH...WITH GUST TO 43 KNOTS...49
            MPH.

&&

JRUA

The office that day

Everything else NWS Lake Charles, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 21, 9:05 PM CDT	River Flood Warning	LCH	Calcasieu	4 days
Jun 21, 9:05 PM CDT	River Flood Warning	LCH	Beauregard, Calcasieu	10 days
Jun 21, 10:41 PM CDT	Small Craft Advisory	LCH		38 hr
Jun 22, 8:19 AM CDT	Areal Flood Advisory	LCH	Acadia, Cameron, Jefferson Davis, Vermilion	116 min
Jun 22, 10:02 AM CDT	Areal Flood Advisory	LCH	Acadia, Cameron, Jefferson Davis, Saint Landry, Vermilion	118 min
Jun 22, 10:06 AM CDT	Special Marine Warning	LCH		114 min
Jun 22, 11:01 AM CDT	River Flood Warning	LCH	Acadia, Jefferson Davis, Vermilion	68 hr
Jun 22, 3:29 PM CDT	Coastal Flood Advisory	LCH	Cameron	7 hr
Jun 21, 7:45 PM CDT	Areal Flood Advisory	LCH	Hardin, Jasper, Jefferson, Newton, Orange	2 hr
Jun 21, 8:49 PM CDT	Flash Flood Warning	LCH	Jefferson, Orange	116 min
Jun 22, 4:48 AM CDT	Areal Flood Advisory	LCH	Jasper, Newton	117 min

Nearby

Coastal Flood Warnings in Louisiana, 2017 Coastal Flood Warnings in Texas, 2017 Every coastal flood warning in 2017

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; radar from the NEXRAD Level II archive.