265
ACUS74 KLIX 171540
PSHLIX
POST TROPICAL CYCLONE REPORT...TROPICAL STORM BETA
NATIONAL WEATHER SERVICE NEW ORLEANS LA
1040 AM CDT SAT OCT 17 2020
NOTE: THE DATA SHOWN HERE ARE PRELIMINARY....AND SUBJECT TO UPDATES
AND CORRECTIONS AS APPROPRIATE.
LOUISIANA PARISHES INCLUDED...ASCENSION...ASSUMPTION...EAST BATON
ROUGE...EAST FELICIANA... IBERVILLE...JEFFERSON...LAFOURCHE...
LIVINGSTON...ORLEANS...PLAQUEMINES...POINT COUPEE...ST. BERNARD...
ST. CHARLES...ST. HELENA...ST. JAMES...ST. JOHN THE BAPTIST...
ST. TAMMANY...TANGIPAHOA...TERREBONNE...WASHINGTON...WEST BATON
ROUGE...WEST FELICIANA...
MISSISSIPPI COUNTIES INCLUDED...AMITE...HANCOCK...HARRISON...
JACKSON...PEARL RIVER...PIKE...WALTHALL...WILKINSON...
GENERAL REMARKS: A TIGHT PRESSURE GRADIENT BETWEEN BETA AND A HIGH
PRESSURE TO THE NORTHEAST RESULTED IN PERSISTENT MODERATE TO STRONG
ONSHORE EAST AND NORTHEAST WINDS ACROSS SOUTHEAST LOUISIANA AND
SOUTHERN MISSISSIPPI. THE PEAK WINDS AND PEAK WATER LEVELS BELOW
COVER THE PERIOD FROM 12Z SEPTEMBER 19TH THROUGH 12Z SEPTEMBER 23RD.
IN GENERAL, THE STRONGEST WINDS AND HIGHEST WATER LEVELS OCCURRED
WHEN BETA'S CENTER OF CIRCULATION WAS WELL REMOVED FROM THE LOCAL
AREA AND THUS MUCH OF THE LOCAL IMPACT MAY BE CONSIDERED INDIRECT.
WHILE TROPICAL STORM WATCHES AND WARNINGS WERE ISSUED FOR PORTIONS
OF THE COASTAL WATERS, NO TROPICAL HEADLINES WERE HOISTED FOR LAND
AREAS.
10/17/20 UPDATE - CORRECTED WIND REPORT AND NAME OF WX FLOW SITE AT
DULAC, CORRECTED ID FOR USGS GAUGE AT CAERNARVON AND ADDED PARISH
AND COUNTY SPECIFIC IMPACTS.
A. LOWEST SEA LEVEL PRESSURE/MAXIMUM SUSTAINED WINDS AND PEAK GUSTS
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METAR OBSERVATIONS...
NOTE: ANEMOMETER HEIGHT IS 10 METERS AND WIND AVERAGING IS 2 MINUTES
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LOCATION ID MIN DATE/ MAX DATE/ PEAK DATE/
LAT LON PRES TIME SUST TIME GUST TIME
DEG DECIMAL (MB) (UTC) (KT) (UTC) (KT) (UTC)
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KXPY-PORT FOURCHON AWOS
29.12 -90.20 100/030 21/0515 110/044 22/0035
KNEW-NEW ORLEANS LAKEFRONT AIRPORT
30.04 -90.03 060/029 20/1138 060/035 20/1115
KMSY-NEW ORLEANS ARMSTRONG INTL AIRPORT
29.98 -90.25 070/022 20/1752 080/033 20/1854
KGAO-GALLIANO
29.44 -90.26 060/021 20/0015 060/031 20/0015
KBTR-BATON ROUGE AIRPORT
30.54 -91.15 040/022 20/1440 040/030 20/1533
REMARKS: ONLY STATIONS WITH WIND GUSTS OF AT LEAST 30KT ARE
INCLUDED. ALL OTHER LAND STATIONS GENERALLY REPORTED PEAK WIND GUSTS
IN THE 20 TO 30KT RANGE. ALL PRESSURES REMAINED WELL ABOVE 1005MB.
NON-METAR OBSERVATIONS...
NOTE: ANEMOMETER HEIGHT IN METERS AND WIND AVERAGING PERIOD IN
MINUTES INDICATED UNDER MAXIMUM SUSTAINED WIND IF KNOWN
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LOCATION ID MIN DATE/ MAX DATE/ PEAK DATE/
LAT LON PRES TIME SUST TIME GUST TIME
DEG DECIMAL (MB) (UTC) (KT) (UTC) (KT) (UTC)
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WX FLOW-NEW ORLEANS LAKEFRONT
30.04 -90.02 070/027 20/1726 070/033 20/1636
10.3M/5MIN
WX FLOW-DULAC
29.35 -90.73 078/024 21/0446 060/033 20/0424
10.3M/5MIN
B. MARINE OBSERVATIONS...
NOTE: ANEMOMETER HEIGHT IN METERS AND WIND AVERAGING PERIOD IN
MINUTES INDICATED UNDER MAXIMUM SUSTAINED WIND IF KNOWN
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LOCATION ID MIN DATE/ MAX DATE/ PEAK DATE/
LAT LON PRES TIME SUST TIME GUST TIME
DEG DECIMAL (MB) (UTC) (KT) (UTC) (KT) (UTC)
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PSTL1-PILOTS STAT E
28.93 -89.41 050/045 21/0006 040/054 20/2354
20.3M/2MIN
BURL1-NOAA C-MAN SW PASS
28.90 -89.43 999/044 21/0000 999/050 21/0000
38M/10MIN
LOPL1-LOUISIANA OFFSHORE OIL PORT, LA
28.89 -90.02 080/041 20/0419 060/049 19/2119
57.9M/2MIN
KDLP-WEST DELTA 27A
21.12 -89.55 100/042 20/0115 100/048 21/0115
34.7M/2MIN
KVKY-MAIN PASS 289C
29.25 -88.44 090/039 20/0130 100/042 20/1655
115M/2MIN
WX FLOW - BAYOU BIENVENUE
30.00 -89.90 070/034 21/1530 070/040 21/1530
27.4M/5MIN
SHBL1-SHELL BEACH NOAA NOS
29.87 -89.67 070/034 20/1812 070/041 20/1730
15.6M/2MIN
GISL1-NOAA C-MAN GRAND ISLE
29.26 -89.96 999/028 20/0018 I 999/038 20/0018 I
6.6M/2MIN
WX FLOW-SHIP ISLAND
30.23 -88.98 070/032 21/1537 070/037 21/1537
11.8M/5MIN
NWCL1-NEW CANAL -NOAA NOS
30.03 -90.11 070/030 20/1630 070/036 20/1524
9.9M/2MIN
PTBM6-PETIT BOIS ISLAND
30.21 -88.50 070/028 20/0254 070/035 20/0254
4.6M/10MIN
WX FLOW-MIDLAKE
30.20 -90.12 060/025 20/1422 060/032 20/1537
12.5M/5MIN
PILL1-PILOTTOWN
29.18 -89.26 090/021 20/0200 080/031 20/0106
9.5M/2MIN
FREL1-FRENIER
30.11 -90.42 060/024 20/2030 070/030 21/1948
10M/1MIN
REMARKS: ONLY STATIONS WITH WIND GUSTS IN EXCESS OF 30 KNOTS ARE
INCLUDED. SEVERAL OTHER STATIONS REPORTED PEAK WIND GUSTS IN THE 20
TO 30 KT RANGE. ALL PRESSURES REMAINED WELL ABOVE 1005MB.
C. STORM TOTAL RAINFALL FROM 0200 UTC SEP 19 UNTIL 1200 UTC SEP 23
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CITY/TOWN COUNTY ID RAINFALL
LAT LON (IN)
DEG DECIMAL
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NO RAINFALL TOTALS IN EXCESS OF 3 INCHES
D. INLAND FLOODING...
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NONE
E. MAXIMUM OBSERVED WATER LEVEL (WL)...
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ID CITY/TOWN COUNTY STATE WL DATUM DATE/ SOURCE
OR LOCATION (FT) TIME
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BCFL1 BONNET CARRE SP ST. CHARLES LA 4.29 MHHW 21/1612 NOS
30.0679 -90.3900
SHBL1 SHELL BEACH ST. BERNARD LA 4.14 MHHW 21/1024 NOS
29.8681 -89.6732
NWCL1 NEW CANAL ORLEANS LA 3.83 MHHW 21/1818 NOS
30.0272 -90.1133
WYCM6 WAVELAND HANCOCK MS 2.86 MHHW 21/0824 NOS
30.3250 -89.3250
PSTL1 PILOTS STATION PLAQUEMINES LA 2.55 MHHW 22/0536 NOS
28.9322 -89.4075
GISL1 GRAND ISLE JEFFERSON LA 2.36 MHHW 21/0636 NOS
29.2633 -89.9567
PNLM6 PASCAGOULA NOAA JACKSON MS 2.16 MHHW 22/0724 NOS
30.3678 -88.5631
PTFL1 PORT FOURCHON LAFOURCHE LA 2.09 MHHW 22/0618 NOS
29.1143 -90.1992
CBDL1 DELACROIX PLAQUEMINES LA 5.59 NAVD88 21/0615 USGS
29.7081 -89.7194
COCL1 CAERNARVON PLAQUEMINES LA 5.48 NAVD88 21/1500 USACE
29.8587 -89.9068
TSPL1 SPRINGFIELD LIVINGSTON LA 5.47 NAVD88 23/0000 USACE
30.3764 -90.5506
BDML1 BAYOU DUPREE ST. BERNARD LA 5.28 NAVD88 21/1100 USACE
29.9351 -89.8366
MBBL1 BAYOU BIENVENUE ST. BERNARD LA 5.05 NAVD88 21/1200 USACE
29.9978 -89.9165
EPCM6 CLAIBORNE HANCOCK MS 4.81 NAVD88 21/1015 USGS
30.1947 -89.5342
PRSL1 GIWW PARIS RD ORLEANS LA 4.66 NAVD88 21/1300 USACE
30.0067 -89.9374
CMPL1 CHEF PASS ORLEANS LA 4.58 NAVD88 21/1100 USACE
30.0667 -89.8010
PSIL1 BLACK BAY PALH PLAQUEMINES LA 4.51 NAVD88 21/0200 USGS
29.6333 -89.5636
EGIL1 BARATARIA PASS JEFFERSON LA 4.39 NAVD88 21/0715 USGS
29.2728 -89.9467
PLAL1 LAKEFRONT AP ORLEANS LA 4.35 NAVD88 21/1800 USACE
30.0399 -90.0188
WEGL1 WEST END ORLEANS LA 4.31 NAVD88 21/1800 USACE
30.0222 -90.1156
CCOL1 CAERNARVON PLAQUEMINES LA 4.26 NAVD88 21/0345 USGS
29.8587 -89.9068
PMPL1 PASS MANCHAC ST. JOHN LA 4.16 NAVD88 22/1900 USACE
30.2814 -90.4003
GRPL1 GRAND PASS ST. BERNARD LA 4.13 NAVD88 21/0830 USGS
30.1228 -89.2503
CPGL1 CAMINADA PASS JEFFERSON LA 4.10 NAVD88 15/1500 USGS
29.2314 -90.0483
LPML1 MANDEVILLE ST. TAMMANY LA 4.06 NAVD88 21/1700 USACE
30.3658 -90.0923
MAUL1 MAUREPAS LIVINGSTON LA 4.04 NAVD88 23/0000 USGS
30.3092 -90.6103
HACL1 HACKBERRY BAY LAFOURCHE LA 4.03 NAVD88 22/0500 USGS
29.3983 -90.0411
RIGL1 RIGOLETS ORLEANS LA 3.99 NAVD88 21/1100 USACE
30.1634 -89.7379
CTFL1 CUTOFF TERREBONNE LA 3.97 NAVD88 21/1015 USGS
29.5175 -90.1813
NGIL1 BARATARIA BAY JEFFERSON LA 3.93 NAVD88 21/0715 USGS
29.4225 -89.9506
DCLL1 SW OF DULAC TERREBONNE LA 3.54 NAVD88 22/0530 USGS
29.2491 -90.9211
OFBM6 OCEAN SPRINGS JACKSON MS 3.25 NAVD88 22/0800 USGS
30.4192 -88.8281
EWEL1 EMPIRE PLAQUEMINES LA 3.10 NAVD88 22/0630 USGS
29.3044 -89.5969
BSGL1 BAYOU SEGNETTE JEFFERSON LA 2.86 NAVD88 22/2300 USACE
29.8968 -90.1567
LBWL1 LAFITTE JEFFERSON LA 2.81 NAVD88 22/1400 USACE
29.6694 -90.1106
REMARKS: NOS GAUGES ARE REPORTED REFERENCE TO MHHW AS A PROXY FOR
INUNDATION. USGS AND USACE GAUGES ARE REPORTED REFERENCE TO NAVD88
WHICH MAY OR MAY NOT BE REPRESENTATIVE OF INUNDATION LEVELS.
F. TORNADOES...
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(DIST)CITY/TOWN COUNTY DATE/ EF SCALE
LAT LON (DEG DECIMAL) TIME(UTC) (IF KNOWN)
DESCRIPTION
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NONE
G. STORM IMPACTS BY COUNTY...
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COUNTY DEATHS INJURIES EVACUATIONS
DESCRIPTION
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HANCOCK 0 0 UNK
COASTAL FLOODING HAD MODERATE IMPACTS ACROSS LOW LYING PORTIONS OF
THE COUNTY. DOZENS OF ROADS WERE COVERED BY WATER IN PARTS OF BAY
ST. LOUIS AND DIAMONDHEAD, WITH NUMEROUS BECOMING IMPASSIBLE TO
CARS.
JEFFERSON 0 0 UNK
COASTAL FLOODING HAD MODERATE IMPACTS ACROSS PORTIONS OF THE PARISH.
IMPACTS WERE GREATEST ON GRAND ISLE WHERE WATER WAS NEARLY WAIST-
DEEP IN SOME AREAS. GRAND ISLE WAS CUT OFF FROM THE MAINLAND DUE TO
HIGH WATER ON LA HWY 1. A FEW ROADS AROUND LAFITTE WERE ALSO CLOSED
DUE TO HIGH WATER.
LAFOURCHE 0 0 UNK
COASTAL FLOODING HAD MODERATE IMPACTS ACROSS THE SOUTHERN END OF THE
PARISH. PORTIONS OF HIGHWAY 1 BECAME IMPASSIBLE TO VEHICLES AND WAS
CLOSED SOUTH OF THE GOLDEN MEADOW FLOOD GATE. THE HIGHWAY IS THE
ONLY ACCESS ROAD TO PORT FOURCHON AND GRAND ISLE, MEANING BOTH
COMMUNITIES WERE CUT OFF BY THE FLOODING.
ORLEANS 0 0 UNK
COASTAL FLOODING RESULTED IN MINOR IMPACTS TO FAR EASTERN PORTIONS
OF THE PARISH OUTSIDE OF THE HURRICANE RISK REDUCTION SYSTEM LEVEES.
US HWY 90 AND SEVERAL STREETS IN THE VENETIAN ISLES AREA WERE
COVERED WITH OVER 1 FT OF WATER.
PLAQUEMINES 0 0 UNK
COASTAL FLOODING RESULTED IN 1-2 FT OF WATER COVERING HWY 39 FOR
5 MILES BETWEEN WHITE DITCH AND PHOENIX. THERE ARE NO BACK LEVEES
IN THAT AREA. NO HOMES OR BUSINESSES WERE FLOODED.
ST. BERNARD 0 0 UNK
COASTAL FLOODING RESULTED IN MINOR IMPACTS ACROSS EASTERN PARTS OF
THE PARISH OUTSIDE OF THE HURRICANE RISK REDUCTION SYSTEM LEVEES.
LA HWY 46 WAS COVERED IN WATER BUT STILL PASSABLE TO VEHICLES FROM
REGGIO TO DELACROIX.
ST. JOHN 0 0 UNK
COASTAL FLOODING RESULTED IN MINOR IMPACTS ACROSS THE LOWEST LYING
PORTIONS OF THE PARISH NEAR LAKES PONTCHARTRAIN AND MAUREPAS. THE
I-55 OFF RAMPS AT RUDDOCK WERE CLOSED DUE TO HIGH WATER ON THE OLD
US HWY 51. WATER ALSO COVERED THE ROAD NEAR MANCHAC, BUT IT
REMAINED PASSABLE.
ST. TAMMANY 0 0 UNK
COASTAL FLOODING RESULTED IN MINOR IMPACTS IN THE FAR SOUTHEASTERN
PORTION OF THE PARISH. WATER COVERED ROADWAYS IN LOW LYING AREAS
IN SLIDELL WITH UP TO 1 FT OF WATER COVERING A FEW ROADS NEAR
BAYOU LIBERTY.
$$
LEGEND:
I-INCOMPLETE DATA
E-ESTIMATED
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