874
ACUS74 KLIX 221457
PSHLIX
POST TROPICAL CYCLONE REPORT...HURRICANE SALLY
NATIONAL WEATHER SERVICE NEW ORLEANS LA
957 AM CDT TUE SEP 22 2020
NOTE: THE DATA SHOWN HERE ARE PRELIMINARY....AND SUBJECT TO UPDATES
AND CORRECTIONS AS APPROPRIATE.
THIS REPORT INCLUDES EVENTS OCCURRING WHEN WATCHES AND/OR WARNINGS
WERE IN EFFECT...OR WHEN SIGNIFICANT FLOODING ASSOCIATED WITH SALLY
OR ITS REMNANTS WAS AFFECTING THE AREA.
MISSISSIPPI COUNTIES INCLUDED...AMITE...HANCOCK...HARRISON...
JACKSON...PEARL RIVER...PIKE...WALTHALL...WILKINSON...
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...
UPDATE 1 - 9/22/20 - CORRECTED MAX WINDS AND GUSTS AT WEATHERFLOW
SITES. PREVIOUS ENTRIES WERE BASED ON 5-MINUTE DATA RATHER THAN 1-
MINUTE DATA. ALSO ADDED PARISH-SPECIFIC IMPACTS FOR SEVERAL MORE
PARISHES AND COUNTIES.
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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KPQL-PASCAGOULA AIRPORT
30.46 -88.53 995.6 16/0943 360/035 16/0943 360/048 16/0942
KGPT-GULFPORT AIRPORT
30.40 -89.07 1001.4 16/0858 020/026 16/0252 010/040 16/0251
KBIX-BILOXI AIR FORCE BASE
30.43 -88.92 1000.9 16/0834 060/027 15/0336 060/038 15/0336
KNEW-NEW ORLEANS LAKEFRONT AIRPORT
30.04 -90.03 1005.4 16/1008 010/028 16/0247 030/034 15/0908
KASD-SLIDELL AIRPORT
30.35 -89.82 1005.1 16/1033 020/022 16/0449 020/030 16/0448
REMARKS: WINDS FOR BOTH METAR AND NON-METAR STATIONS ARE FORMATTED
AS DDD/SSS WHERE DDD IS THE DIRECTION IN DEGREES AND SSS IS THE
SPEED IN KNOTS. ONLY STATIONS WITH WIND GUSTS GREATER THAN 34KT OR
PRESSURES 1005MB OR LOWER ARE LISTED. ALL OTHER ASOS STATIONS
GENERALLY REPORTED PEAK WINDS IN THE 20 TO 30 KT RANGE, WITH
MINIMUM PRESSURES OVER 1005 MB.
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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GDXM6-GRAND BAY MS
30.36 -88.42 996.0 16/0700 010/035 16/0730
4.5M/2MIN
WX FLOW-BILOXI
30.44 -88.98 998.0 16/0924 010/026 16/0013 010/038 16/0534
15.2/1MIN
WX FLOW-NEW ORLEANS LAKEFRONT
30.04 -90.02 1003.6 16/0933 040/030 15/2002 040/036 15/2002
10.3/1
WX FLOW-BAYOU BIENVENUE
30.00 -89.90 1001.8 16/0925 350/024 15/2200 030/035 14/2305
27.4M/1MIN
WX FLOW-GULFPORT
30.36 -89.11 1000.1 16/0854 010/026 15/2131 010/035 15/2134
10.3/1
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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KMIS-MP 140B
29.30 -88.84 050/065 15/1435 050/080 15/0255
85M/2MIN
KVKY-MAIN PASS 289C
29.26 -88.44 040/060 15/1155 040/069 15/1155
115M/2MIN
PTBM6-PETIT BOIS ISLAND
30.21 -88.50 994.1 16/0818 033/050 16/0118 355/065 16/0818
4.6M/10MIN
42040-NOAA BUOY MOBILE SOUTH
29.18 -88.29 998.5 15/0020 060/051 15/0030 060/064 15/0140
3.8M/10MIN
PSTL1-PILOTS STAT E
28.93 -89.41 1002.4 15/0936 334/043 15/1500 018/052 15/0600
20.3M/2MIN
WX FLOW-SHIP ISLAND
30.23 -88.98 1000.7 16/0456 360/043 15/2339 020/052 15/1421
11.8M/1MIN
KDLP - WEST DELTA 27A
21.12 -89.55 360/043 16/1935 020/050 15/1115
34.7M/2MIN
BURL1-NOAA C-MAN SW PASS
28.90 -89.43 999/040 15/1600 999/045 15/1000
38M/10MIN
PILL1-PILOTTOWN, LA NOS
29.18 -89.26 1002.9 15/2018 337/038 15/2000 328/044 15/2218
9.5M/2MIN
GRPL1 - MS SOUND GRAND PASS
30.12 -89.25 360/037 15/2100
UNK/UNK
WX FLOW-EAST BAY TOWER
29.06 -89.30 1003.0 15/0419 I 340/034 15/0500 I 330/043 15/0555 I
15.2M/5MIN
SHBL1-SHELL BEACH NOAA NOS
29.87 -89.67 1004.9 16/0930 349/032 16/0000 353/038 16/0136
15.6M/2MIN
WYCM6-BAY WAVELAND YACHT CLUB
30.33 -89.33 1003.7 16/0906 020/029 15/2054 010/038 16/0406
9.9M/2MIN
LOPL1-LOUISIANA OFFSHORE OIL PORT, LA
28.89 -90.02 020/028 14/2054 010/036 15/1519
57.9M/2MIN
WX FLOW-MIDLAKE
30.20 -90.12 1005.5 15/1038 040/031 15/2026 020/035 15/2023
12.5M/1MIN
REMARKS: WINDS ARE REPORTED IN THE FORMAT DDD/SSS WHERE DDD IS THE
DIRECTION IN DEGREES AND SSS IS THE SPEED IN KNOTS.
C. STORM TOTAL RAINFALL FROM 1200 UTC SEP 13 UNTIL 1200 UTC SEP 17
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CITY/TOWN COUNTY ID RAINFALL
LAT LON (IN)
DEG DECIMAL
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MOSS POINT 1.2 NNW JACKSON MS-JC-27 3.27
30.44 -88.53
PASCAGOULA TRENT LOTT AP JACKSON KPQL 3.13
30.46 -88.53
REMARKS: RAINFALL WAS OF LITTLE IMPACT ACROSS COASTAL MS AND WESTWARD.
ONLY SMALL POCKETS OF RAINFALL TOTALS CROSSING THE 3 INCH MARK WERE
REPORTED ACROSS EASTERN JACKSON COUNTY. RAINFALL TOTALS FELL OFF
RAPIDLY TO THE WEST WITH THE VAST MAJORITY OF STATIONS REPORTING LESS
THAN ONE HALF INCH OF RAIN OVER THE 4-DAY PERIOD.
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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SHBL1 SHELL BEACH ST. BERNARD LA 5.35 MHHW 15/1812 NOS
29.8681 -89.6732
PILL1 PILOTTOWN PLAQUEMINES LA 3.85 MHHW 15/1612 NOS
29.1783 -89.2583
NWCL1 NEW CANAL ORLEANS LA 3.77 MHHW 15/2254 NOS
30.0272 -90.1133
WYCM6 WAVELAND HANCOCK MS 3.66 MHHW 15/1706 NOS
30.3250 -89.3250
PSTL1 PILOTS STATION PLAQUEMINES LA 3.51 MHHW 15/1348 NOS
28.9322 -89.4075
BCFL1 BONNET CARRE SP ST. CHARLES LA 3.76 MHHW 16/0112 NOS
30.0679 -90.3900
PNLM6 PASCAGOULA NOAA JACKSON MS 3.46 MHHW 15/1830 NOS
30.3678 -88.5631
PTFL1 PORT FOURCHON LAFOURCHE LA 2.69 MHHW 15/1454 NOS
29.1143 -90.1992
GISL1 GRAND ISLE JEFFERSON LA 2.10 MHHW 15/1524 NOS
29.2633 -89.9567
PLHL1 AMER BAY PALH PLAQUEMINES LA 6.66 NAVD88 15/1415 USGS
29.3571 -89.7039
PSIL1 BLACK BAY PALH PLAQUEMINES LA 6.55 NAVD88 15/1300 USGS
29.6333 -89.5636
BDML1 BAYOU DUPREE ST. BERNARD LA 5.92 NAVD88 15/1800 USACE
29.9351 -89.8366
CBDL1 DELACROIX PLAQUEMINES LA 5.85 NAVD88 15/1915 USGS
29.7081 -89.7194
EPCM6 CLAIBORNE HANCOCK MS 5.49 NAVD88 15/1830 USGS
30.1947 -89.5342
GRPL1 GRAND PASS ST. BERNARD LA 5.26 NAVD88 15/1715 USGS
30.1228 -89.2503
CMPL1 CHEF PASS ORLEANS LA 4.96 NAVD88 15/1900 USACE
30.0667 -89.8010
COCL1 CAERNARVON PLAQUEMINES LA 4.59 NAVD88 16/0100 USACE
29.8587 -89.9068
EGIL1 BARATARIA PASS JEFFERSON LA 4.55 NAVD88 15/1345 USGS
29.2728 -89.9467
TSPL1 SPRINGFIELD LIVINGSTON LA 4.52 NAVD88 16/1100 USACE
30.3764 -90.5506
PLAL1 LAKEFRONT AP ORLEANS LA 4.36 NAVD88 15/2300 USACE
30.0399 -90.0188
SWBL1 SW PASS E JETTY PLAQUEMINES LA 4.35 NAVD88 15/1400 USACE
28.9323 -89.4071
RIGL1 RIGOLETS ORLEANS LA 4.34 NAVD88 15/1900 USACE
30.1634 -89.7379
WEGL1 WEST END ORLEANS LA 4.21 NAVD88 15/2300 USACE
30.0222 -90.1156
OFBM6 OCEAN SPRINGS JACKSON MS 4.06 NAVD88 15/0930 USGS
30.4192 -88.8281
CCOL1 SW OF COCODRIE TERREBONNE LA 3.87 NAVD88 15/1545 USGS
9.0781 -90.8712
CPGL1 CAMINADA PASS JEFFERSON LA 3.62 NAVD88 15/1500 USGS
29.2314 -90.0483
LPML1 MANDEVILLE ST. TAMMANY LA 3.54 NAVD88 16/0000 USACE
30.3658 -90.0923
PMPL1 PASS MANCHAC ST. JOHN LA 3.39 NAVD88 16/0600 USACE
30.2814 -90.4003
EWEL1 EMPIRE PLAQUEMINES LA 3.21 NAVD88 15/1515 USGS
29.3044 -89.5969
NGIL1 BARATARIA BAY JEFFERSON LA 3.04 NAVD88 15/1600 USGS
29.4225 -89.9506
MAUL1 MAUREPAS LIVINGSTON LA 3.00 NAVD88 16/1100 USGS
30.3092 -90.6103
DCLL1 SW OF DULAC TERREBONNE LA 2.98 NAVD88 15/1700 USGS
29.2491 -90.9211
PRSL1 GIWW PARIS RD ORLEANS LA 2.71 NAVD88 16/0700 USACE
30.0067 -89.9374
HACL1 HACKBERRY BAY LAFOURCHE LA 2.63 NAVD88 15/1615 USGS
29.3983 -90.0411
CTFL1 CUTOFF TERREBONNE LA 2.27 NAVD88 15/1800 USGS
29.5175 -90.1813
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
---------------------------------------------------------------------
NONE
G. STORM IMPACTS BY COUNTY...
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COUNTY DEATHS INJURIES EVACUATIONS
DESCRIPTION
---------------------------------------------------------------------
JACKSON 0 0 26+
IMPACTS IN THE COUNTY WERE PRIMARILY THE RESULT OF STORM SURGE
FLOODING AND GUSTY WINDS. 62 ROADS WERE COVERED WITH WATER TO VARIOUS
DEPTHS, MAINLY NEAR THE IMMEDIATE COAST. HOWEVER, FEW ROADS WERE ALSO
FLOODED FROM WATER MOVING UP THE PASCAGOULA RIVER FROM THE MS SOUND.
STORM SURGE AND WAVE ACTION ALSO DAMAGED THE BOARDWALK/FISHING PIER
IN DOWNTOWN MOSS POINT ON THE ESCATAWPA RIVER. SEVERAL WIND GUSTS IN
EXCESS OF 50 MPH WERE REPORTED ACROSS THE FAR EASTERN PORTION OF THE
COUNTY. THESE WINDS DOWNED DOZENS OF TREES ACROSS AREAS GENERALLY
EAST OF THE PASCAGOULA RIVER, WITH 20 TREES BLOCKING ROADS. TWO
TREES FELL ON HOUSES, ONE IN ESCATAWPA AND ONE IN NORTH MOSS POINT.
THANKFULLY NO INJURIES WERE REPORTED ASSOCIATED WITH THE DOWNED
TREES. THE COUNTY OPENED TWO SHELTERS AND HOUSED A TOTAL OF 26
PEOPLE DURING THE STORM.
PLAQUEMINES 0 0 61+
IMPACTS IN THE PARISH WERE PRIMARILY THE RESULT OF STORM SURGE AND
AFFECTED ONLY AREAS OUTSIDE THE HSDRRS LEVEES. SEVERAL ROADS WERE
COVERED WITH WATER. SPECIFICALLY, TIDEWATER ROAD AND ADJACENT
ROADWAYS IN THE VENICE AREA WERE IMPASSIBLE DUE TO 1-2 FT OF
INUNDATION. TROPICAL STORM FORCE GUSTS WERE REPORTED MAINLY IN THE
SOUTHERN PORTION OF THE PARISH, WITH OBSERVATION SITES IN BOTH BURAS
AND VENICE REPORTING PEAK WIND GUSTS OF 45-50 MPH. THE PARISH EM
REPORTED ROUGHLY 50-75% OF THOSE UNDER MANDATORY EVACUATION ORDERS
DID EVACUATE, WITH 61 PEOPLE SEEKING SHELTER AT THE PARISH SHELTER.
HANCOCK 0 0 UNK
IMPACTS IN THE PARISH WERE THE RESULT OF STORM SURGE. AT THE TIME OF
HIGHEST WATER, AROUND 100 LOW LYING ROADWAYS IN THE COUNTY WERE
COVERED BY VARYING DEPTHS OF WATER WITH AROUND 10 BECOMING
IMPASSIBLE.
ST. BERNARD 0 0 UNK
IMPACTS IN THE PARISH WERE THE RESULT OF STORM SURGE AND AFFECTED
ONLY AREAS OUTSIDE THE HSDRRS LEVEES. STORM SURGE FLOODING
OVERTOPPED RING LEVEES IN THE DELACROIX AND WOODLAKE AREAS,
RESULTING IN ONE TO TWO FEET OF INUNDATION INSIDE THOSE LEVEED
AREAS. THE LOWER PORTION OF THE PARISH BELOW THE VERRET FLOOD GATES
WAS CUT OFF DUE TO FLOODING.
LAFOURCHE 0 0 UNK
IMPACTS IN THE PARISH WERE THE RESULT OF STORM SURGE. DURING THE
TIME OF HIGHEST INUNDATION, 2 TO 3 FEET OF WATER COVERED PORTIONS OF
LA HWY 1 SOUTH OF THE GOLDEN MEADOW FLOOD GATE. THE ROAD WAS CLOSED,
COMPLETELY CUTTING OFF AREAS SOUTH OF THE FLOOD GATE.
ST. TAMMANY 0 0 UNK
IMPACTS IN THE PARISH WERE THE RESULT OF STORM SURGE. LOW LYING
PORTIONS OF THE PARISH, INCLUDING PALM LAKE, SALT BAYOU AND BAYOU
LIBERTY IN SLIDELL AND THE LAKESHORE AREA OF MANDEVILLE WERE
AFFECTED BY FLOODING.
ORLEANS 0 0 UNK
IMPACTS IN THE PARISH WERE THE RESULT OF STORM SURGE AND AFFECTED
AREAS OUTSIDE THE HSDRRS LEVEES. 1 TO 2 FEET OF INUNDATION AFFECTED
THE LOWEST LYING PORTIONS OF THE PARISH AROUND LAKE CATHERINE AND
THROUGH IRISH BAYOU. WATER COVERED HWY 90 AND OTHER STREETS IN THE
VENETIAN ISLES AREA.
JEFFERSON 0 0 ~900
IMPACTS IN THE PARISH WERE THE RESULT OF STORM SURGE AND AFFECTED
AREAS OUTSIDE THE HSDRRS LEVEES. THE GREATEST IMPACTS WERE ACROSS
THE SOUTHERN END OF THE PARISH. STORM SURGE FLOODING AFFECTED MUCH
OF GRAND ISLE, INUNDATING SOME AREAS WITH 1 TO 2 FEET OF WATER.
THE AREA WAS CUT OFF WHEN HWY 1 WAS CLOSED IN LAFOURCHE PARISH.
THE MAYOR OF GRAND ISLE ESTIMATES AROUND 90% OF ITS 1100 RESIDENTS
EVACUATED AHEAD OF THE STORM.
$$
LEGEND: I-INCOMPLETE DATA E-ESTIMATED
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