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    • Antarctic Ice Melt – Fred Pickhardt

      Fred Pickhardt’s Substack is free today. But if you enjoyed this post, you can tell Fred Pickhardt’s Substack that their writing is valuable by pledging a future subscription. You won’t be charged unless they enable payments.

         
       
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      Antarctic Ice Melt

      Will this lead to massive sea level rise?

       
       
       
       
       

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      Antarctica is 98% ice covered and contains 90 percent of Earth’s total ice volume. Melting ice is limited mainly to West Antarctica which is offset by ice mass gains over the remainder of Antarctica.

        

      The mass of the Antarctic ice sheet has changed over the last decades. Research based on observations from the Gravity Recovery and Climate Experiment (GRACE) satellites (2002-2025) and GRACE Follow-On (since 2018) indicates that between 2002 and 2025, Antarctica shed approximately 135 gigatons of ice per year, causing global sea level to rise by 0.4 millimeters per year. Since 2020, however, the Antarctic has seen little or no ice mass loss.

        

       

      At this rate, an additional 28 mm (1.1 inches) of sea level rise can be anticipated by 2100. If the Antarctic ice melt would triple between now and 2100 we should expect an additional 42 mm (1.7 inches) of sea level rise due to Antarctic melt.

      Ocean Weather Services

      Forensic Marine Weather Expert

       

       

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      © 2025 Fred Pickhardt
      548 Market Street PMB 72296, San Francisco, CA 94104
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    • LNM: Off GIWW-West MM:539.0, LA QUINTA CHANNEL LIGHT 21 Extinguished


      SAFETY/TX- LA QUINTA CHANNEL /ATON/SEC SCC BNM 0372-25


      united states coast guard

      LA QUINTA CHANNEL A INNER RANGE REAR LIGHT (LLNR: 29101.26) IS REPORTED EXTINGUISHED. ALL MARINERS ARE ADVISED TO TRANSIT THE AREA WITH CAUTION.
      CANCEL AT//292222Z DEC 25//

      BT


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      *** THIS DIV IS AUTOMATICALLY HIDDEN WHEN DISPLAYED – INFO FOR DEBUGGING PURPOSES ***
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      0: llnr: 29101 District: 08 lat/lon: 27.877079,-97.267752 Desc: LA QUINTA CHANNEL LIGHT 21

      WW: blat (27.82609) , blon (-97.18753) , bWWid (103) , bMM (539.0) , bDOffWW (6.0) , bAbbrev (GIWW-West) , bWWName (Gulf Intracoastal Waterway – West.gpx)

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    • LNM: Off GIWW-East, Mobile Channel D Range Front Light Extinguished


      SAFETY/AL – MOBILE BAY – MOBILE CHANNEL/ATON/SEC MOB BNM 0514-25


      united states coast guard

      1. MOBILE CHANNEL D RANGE FRONT LIGHT (LLNR 6495) AID IS REPORTED EXTINGUISHED. MARINERS ARE REQUESTED TO TRANSIT THE AREA WITH CAUTION.
      CANCEL AT//290600Z DEC 25//

      BT


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      *** THIS DIV IS AUTOMATICALLY HIDDEN WHEN DISPLAYED – INFO FOR DEBUGGING PURPOSES ***
      ***MANUALLY DO: FIX TITLE, EXPIRE DATE, CATEGORIES, ENABLE SOCIAL POST ***
      0: llnr: 6495 District: 08 lat/lon: 30.445899,-88.011301 Desc: Mobile Channel D Range Front Light

      WW: blat (30.27668) , blon (-88.05362) , bWWid (104) , bMM (132.5) , bDOffWW (12.0) , bAbbrev (GIWW-East) , bWWName (Gulf Intercoastal Waterway – East.gpx)

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    • LNM: GIWW-East MM:133.4, Mobile Channel B Range Front Light Extinguished


      SAFETY/MOBILE BAY – MOBILE CHANNEL/ATON/SEC MOB BNM 0513-25


      united states coast guard

      MOBILE CHANNEL B RANGE FRONT LIGHT (LLNR 6180) AID REPORTED EXTINGUISHED. MARINERS ARE REQUESTED TO TRANSIT THE AREA WITH CAUTION.
      CANCEL AT//290600Z DEC 25//

      BT


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      *** THIS DIV IS AUTOMATICALLY HIDDEN WHEN DISPLAYED – INFO FOR DEBUGGING PURPOSES ***
      ***MANUALLY DO: FIX TITLE, EXPIRE DATE, CATEGORIES, ENABLE SOCIAL POST ***
      0: llnr: 6180 District: 08 lat/lon: 30.262251,-88.042243 Desc: Mobile Channel B Range Front Light

      WW: blat (30.27316) , blon (-88.03952) , bWWid (104) , bMM (133.4) , bDOffWW (0.8) , bAbbrev (GIWW-East) , bWWName (Gulf Intercoastal Waterway – East.gpx)

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    • Standing up for Florida means opposing all offshore drilling – SunSentinel


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    • LNM: GIWW-West MM:539.6, Corpus Christi Cut B East Range Rear Light Extinguished


      SAFETY/TX – CORPUS CHRISTI/ATON/SEC SCC BNM 0371-25


      united states coast guard

      CORPUS CHRISTI CUT B EAST RANGE REAR LIGHT (LLNR 28710) WAS REPORTED AS EXTINGUISHED. ALL MARINERS ARE ADVISED TO TRANSIT THE AREA WITH CAUTION.
      CANCEL AT//282203Z DEC 25//

      BT


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      *** THIS DIV IS AUTOMATICALLY HIDDEN WHEN DISPLAYED – INFO FOR DEBUGGING PURPOSES ***
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      0: llnr: 28710 District: 08 lat/lon: 27.810942,-97.181209 Desc: Corpus Christi Cut B East Range Rear Light

      WW: blat (27.81783) , blon (-97.19271) , bWWid (103) , bMM (539.6) , bDOffWW (0.8) , bAbbrev (GIWW-West) , bWWName (Gulf Intracoastal Waterway – West.gpx)

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    • LNM: Off GIWW-East MM:162.4, Perdido Pass Buoy 4 Offstation


      SAFETY/SANTA ROSA SOUND TO DAUPHIN ISLAND/ATON/SEC MOB BNM 0491-25


      united states coast guard

      1. PERDIDO PASS BUOY 4 (LLNR 5900). AID REPORTED OFFSTATION 100FT NE OF AP. ALL MARINERS ARE REQUESTED TO TRANSIT THE AREA WITH CAUTION.
      CANCEL AT//240600Z DEC 25//

      BT


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      *** THIS DIV IS AUTOMATICALLY HIDDEN WHEN DISPLAYED – INFO FOR DEBUGGING PURPOSES ***
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      0: llnr: 5900 District: 08 lat/lon: 30.270538,-87.557212 Desc: Perdido Pass Buoy 4

      WW: blat (30.30279) , blon (-87.57190) , bWWid (104) , bMM (162.4) , bDOffWW (2.4) , bAbbrev (GIWW-East) , bWWName (Gulf Intercoastal Waterway – East.gpx)

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    • LNM: GIWW-West MM:503.6, San Antonio Bay Daybeacon 35 Destroyed


      UPDATE/TX – SAN ANTONIO BAY CHANNEL/ATON/SEC SCC BNM 0370-25 UPDATE-1


      united states coast guard

      SAN ANTONIO DAYBEACON 35 (LLNR 38570.01) WAS REPORTED DESTROYED, TRUB ON POSITION. ALL MARINERS ARE ADVISED TO TRANSIT THE AREA WITH CAUTION.
      CANCEL AT//241200Z DEC 25//

      BT


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      *** THIS DIV IS AUTOMATICALLY HIDDEN WHEN DISPLAYED – INFO FOR DEBUGGING PURPOSES ***
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      0: llnr: 38570.01 District: 08 lat/lon: 28.208734,-96.819546 Desc: San Antonio Bay Daybeacon 35

      WW: blat (28.20902) , blon (-96.81990) , bWWid (103) , bMM (503.6) , bDOffWW (0.0) , bAbbrev (GIWW-West) , bWWName (Gulf Intracoastal Waterway – West.gpx)

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    • LNM: GIWW-West MM:503.1, San Antonio Bay Daybeacon 33 Missing


      SAFETY/TX – SAN ANTONIO BAY CHANNEL/ATON/SEC SCC BNM 0369-25


      united states coast guard

      SAN ANTONIO BAY CHANNEL DAYBEACON 33 (LLNR: 38560.01) TRUB has been reported missing. All mariners are advised to transit the area with caution.
      CANCEL AT//240925Z DEC 25//

      BT


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      *** THIS DIV IS AUTOMATICALLY HIDDEN WHEN DISPLAYED – INFO FOR DEBUGGING PURPOSES ***
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      0: llnr: 38560.01 District: 08 lat/lon: 28.213847,-96.814186 Desc: San Antonio Bay Daybeacon 33

      WW: blat (28.21407) , blon (-96.81435) , bWWid (103) , bMM (503.1) , bDOffWW (0.0) , bAbbrev (GIWW-West) , bWWName (Gulf Intracoastal Waterway – West.gpx)

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    • LNM: GIWW-West MM:502.3, San Antonio Bay Daybeacon 30 Missing


      SAFETY/TX – SAN ANTONIO BAY CHANNEL/ATON/SEC SCC BNM 0368-25


      united states coast guard

      SAN ANTONIO BAY CHANNEL DAYBEACON 30 (LLNR: 38545.01) TRUB is reported missing. All mariners are advised to transit the area with caution.
      CANCEL AT//240923Z DEC 25//

      BT


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      *** THIS DIV IS AUTOMATICALLY HIDDEN WHEN DISPLAYED – INFO FOR DEBUGGING PURPOSES ***
      ***MANUALLY DO: FIX TITLE, EXPIRE DATE, CATEGORIES, ENABLE SOCIAL POST ***
      0: llnr: 38545.01 District: 08 lat/lon: 28.221456,-96.804906 Desc: San Antonio Bay Daybeacon 30

      WW: blat (28.22100) , blon (-96.80458) , bWWid (103) , bMM (502.3) , bDOffWW (0.0) , bAbbrev (GIWW-West) , bWWName (Gulf Intracoastal Waterway – West.gpx)

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    • LNM: GIWW-West MM:497.9, San Antonio Bay Daybeacon 20 Missing


      SAFETY/TX – SAN ANTONIO BAY CHANNEL/ATON/SEC SCC BNM 0367-25


      united states coast guard

      SAN ANTONIO BAY CHANNEL DAYBEACON 20 (LLNR: 38475.01) TRUB is reported missing. All mariners are advised to transit the area with caution.
      CANCEL AT//240918Z DEC 25//

      BT


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      *** THIS DIV IS AUTOMATICALLY HIDDEN WHEN DISPLAYED – INFO FOR DEBUGGING PURPOSES ***
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      0: llnr: 38475.01 District: 08 lat/lon: 28.261447,-96.748831 Desc: San Antonio Bay Daybeacon 20

      WW: blat (28.26095) , blon (-96.74847) , bWWid (103) , bMM (497.9) , bDOffWW (0.0) , bAbbrev (GIWW-West) , bWWName (Gulf Intracoastal Waterway – West.gpx)

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    • LNM: GIWW-West MM:503.6, San Antonio Bay Daybeacon 35 Destroyed


      SAFETY/TX – SAN ANTONIO BAY CHANNEL/ATON/SEC SCC BNM 0370-25


      united states coast guard

      SAN ANTONIO BAY CHANNEL DAYBEACON 35 (LLNR: 38570.01) has been reported to be destroyed with no wreckage on scene. All mariners are advised to transit the area with caution.
      CANCEL AT//240927Z DEC 25//

      BT


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      *** THIS DIV IS AUTOMATICALLY HIDDEN WHEN DISPLAYED – INFO FOR DEBUGGING PURPOSES ***
      ***MANUALLY DO: FIX TITLE, EXPIRE DATE, CATEGORIES, ENABLE SOCIAL POST ***
      0: llnr: 38570.01 District: 08 lat/lon: 28.208734,-96.819546 Desc: San Antonio Bay Daybeacon 35

      WW: blat (28.20902) , blon (-96.81990) , bWWid (103) , bMM (503.6) , bDOffWW (0.0) , bAbbrev (GIWW-West) , bWWName (Gulf Intracoastal Waterway – West.gpx)

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    • LNM: GIWW-West MM:634.5, Land Cut-Arroyo Colorado Daybeacon 93 Offstation


      SAFETY/TX – LAND CUT-ARROYO COLORADO/ATON/SEC SCC BNM 0366-25


      united states coast guard

      LAND CUT-ARROYO COLORADO DAYBEACON 93 (LLNR 41980.01) is reported off station. All mariners are advised to transit the area with caution.
      CANCEL AT//240906Z DEC 25//

      BT


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      *** THIS DIV IS AUTOMATICALLY HIDDEN WHEN DISPLAYED – INFO FOR DEBUGGING PURPOSES ***
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      0: llnr: 41980.01 District: 08 lat/lon: 26.493326,-97.38417 Desc: Land Cut-Arroyo Colorado Daybeacon 93

      WW: blat (26.49326) , blon (-97.38432) , bWWid (103) , bMM (634.5) , bDOffWW (0.0) , bAbbrev (GIWW-West) , bWWName (Gulf Intracoastal Waterway – West.gpx)

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    • LNM: GIWW-West MM:637.7, Land Cut-Arroyo Colorado Daybeacon 107 Leaning


      SAFETY/TX – LAND CUT-ARROYO COLORADO/ATON/SEC SCC BNM 0365-25


      united states coast guard

      LAND CUT-ARROYO COLORADO DAYBEACON 107 (LLNR 42050) is reported leaning 35 degrees. All mariners are advised to transit the area with caution.
      CANCEL AT//240903Z DEC 25//

      BT


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      *** THIS DIV IS AUTOMATICALLY HIDDEN WHEN DISPLAYED – INFO FOR DEBUGGING PURPOSES ***
      ***MANUALLY DO: FIX TITLE, EXPIRE DATE, CATEGORIES, ENABLE SOCIAL POST ***
      0: llnr: 42050 District: 08 lat/lon: 26.449783,-97.364547 Desc: Land Cut-Arroyo Colorado Daybeacon 107

      WW: blat (26.44970) , blon (-97.36473) , bWWid (103) , bMM (637.7) , bDOffWW (0.0) , bAbbrev (GIWW-West) , bWWName (Gulf Intracoastal Waterway – West.gpx)

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    • LNM: GIWW-West MM:641.1, Land Cut-Arroyo Colorado Daybeacon 122 Destroyed


      SAFETY/TX – LAND CUT-ARROYO COLORADO/ATON/SEC SCC BNM 0364-25


      united states coast guard

      LAND CUT-ARROYO COLORADO DAYBEACON 122 (LLNR 42130) is reported destroyed. All mariners are advised to transit the area with caution.
      CANCEL AT//240901Z DEC 25//

      BT


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      0: llnr: 42130 District: 08 lat/lon: 26.404576,-97.345133 Desc: Land Cut-Arroyo Colorado Daybeacon 122

      WW: blat (26.40486) , blon (-97.34451) , bWWid (103) , bMM (641.1) , bDOffWW (0.0) , bAbbrev (GIWW-West) , bWWName (Gulf Intracoastal Waterway – West.gpx)

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    • Florida congressional Republicans Tell Trump To Keep Oil Drilling Off State’s Coasts – SunSentinel


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    • LNM: GIWW-West MM:470.8, Matagorda Ship Channel A Range Rear Light Extinguished


      SAFETY/TX – MATAGORDA SHIP CHANNEL/ATON/SEC SCC BNM 0363-25


      united states coast guard

      MATAGORDA SHIP CHANNEL A RANGE REAR LIGHT (LLNR: 27125) REPORTED EXTINGUISHED. ALL MARINERS ARE ADVISED TO TRANSIT THE AREA WITH CAUTION.
      CANCEL AT//201951Z DEC 25//

      BT


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      *** THIS DIV IS AUTOMATICALLY HIDDEN WHEN DISPLAYED – INFO FOR DEBUGGING PURPOSES ***
      ***MANUALLY DO: FIX TITLE, EXPIRE DATE, CATEGORIES, ENABLE SOCIAL POST ***
      0: llnr: 27125 District: 08 lat/lon: 28.461383,-96.364926 Desc: Matagorda Ship Channel A Range Rear Light

      WW: blat (28.46877) , blon (-96.37610) , bWWid (103) , bMM (470.8) , bDOffWW (0.8) , bAbbrev (GIWW-West) , bWWName (Gulf Intracoastal Waterway – West.gpx)

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    • LNM: GIWW-West MM:677.0, Brownsville Channel Light 46 TRLB Relocated


      SAFETY/TX – BROWNSVILLE/ATON/SEC SCC BNM 0360-25


      united states coast guard

      BROWNSVILLE CHANNEL LIGHT 46 (LLNR 29980) TRLB WAS RELOCATED IN THE FOLLOWING POSITION 25-58.614N 097-17.840W (25°58.6140N / 097°17.8400W, 25.976900 / -97.297333) . ALL MARINERS ARE ADVISED TO TRANSIT THE AREA WITH CAUTION.
      CANCEL AT//191313Z DEC 25//

      BT


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      *** THIS DIV IS AUTOMATICALLY HIDDEN WHEN DISPLAYED – INFO FOR DEBUGGING PURPOSES ***
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      0: llnr: 29980 District: 08 lat/lon: 25.977247,-97.329598 Desc: Brownsville Channel Light 46

      WW: blat (25.97638), blon (-97.32911), bWWid (103), bMM (677.0), bDOffWW (0.1), bAbbrev (GIWW-West), bWWName (Gulf Intracoastal Waterway – West.gpx)

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    • LNM: Off GIWW, Brownsville Channel D Range Rear Light Extinguished


      SAFETY/TX – BROWNSVILLE CHANNEL/ATON/SEC SCC BNM 0359-25


      united states coast guard

      BROWNSVILLE CHANNEL D RANGE REAR LIGHT (LLNR 29955) WAS REPORTED EXTINGISHED. ALL MARINERS ARE ADVISE TO TRANSIT WITH CAUTION.
      CANCEL AT//171750Z DEC 25//

      BT


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