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    Tools > Informational Postings > Southern Natural Gas > Critical Notices > Notice 710723

    Southern Natural Gas Notice 710723

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    TSP/TSP Name:  6900518-SOUTHERN NATURAL GAS CO. Critical: Y Notice Type Desc (1):  PIPELINE CONDITIONS Notice Type Desc (2):  CURRENT PIPELINE CONDITIONS Notice Eff Date/Time:  05/10/2025 2:25:25PM Notice End Date/Time:  05/11/2025 9:00:00am Post Date/Time:  5/10/2025 2:25:25 PM Notice ID: 710723 Reqrd Rsp:  1 Rsp Date:  5/10/2025 12:00:00 AM Notice Stat Desc:  INITIATE Prior Notice:  Subject:  Pipeline Conditions as of 05-11-2025
    Notice Text:

    Effective Timely Cycle for gas day Sunday, May 11, 2025, and continuing until further notice, SNG restricted the following:

    OPERATIONAL FLOW ORDERS (OFO)

    Type 6 OFO Warning

    Based on current milder temperatures resulting in lower demand on Southern's system, SNG encourages all shippers to manage their system requirements to maintain balance between actual receipts and deliveries.  An Operational Flow Order for long imbalances could be required to help ensure system integrity as Southern's Tariff provides that a Type 6 OFO can be implemented on four hours' notice or less prior to the start of the gas day.  - See Notice #710713

    RESTRICTIONS (POINT)

    ·         651320 (EGT/SNG PERRYVILLE OUACHITA)-R - Exceeds Operating Capacity - Reductions into OP Services

    RESTRICTIONS (SEGMENT)

    ·         50 (PICKENS EAST) BH - Exceeds Operating Capacity - Reductions into OP Services

    ·         380 (SNG - SESH) - Exceeds Operating Capacity - Reductions into OP Services

    ·         400 (GWINVILLE) - Exceeds Operating Capacity - Reductions through OP Services

    RESTRICTIONS (LINEPACK)

    Payback Due Pipe – No Restrictions

    Payback Due Shipper – No Restrictions

    RESTRICTIONS (STORAGE)

    Incremental Interruptible Storage (ISS) Injections not allowed - See Notice # 710565

    Type 3 / 4 OFO Probability (Unlikely (UL); Likely (L); Too Close to Call (TC); Highly Likely (HL)

    May 11, 2025 – UL

    May 12, 2025 – UL

    Type 6 OFO Probability (Unlikely (UL); Too Close to Call (TC); Highly Likely (HL)

    May 11, 2025 – UL for Short and HL for Long Imbalances

    May 12, 2025 – UL for Short and HL for Long Imbalances

     

     

    TSP/TSP Name:  6900518-SOUTHERN NATURAL GAS CO. Critical: Y Notice Type Desc (1):  PIPELINE CONDITIONS Notice Type Desc (2):  CURRENT PIPELINE CONDITIONS Notice Eff Date/Time:  05/10/2025 2:25:25PM Notice End Date/Time:  05/11/2025 9:00:00am Post Date/Time:  5/10/2025 2:25:25 PM Notice ID: 710723 Reqrd Rsp:  1 Rsp Date:  5/10/2025 12:00:00 AM Notice Stat Desc:  INITIATE Prior Notice:  Subject:  Pipeline Conditions as of 05-11-2025
    Notice Text:

    Effective Timely Cycle for gas day Sunday, May 11, 2025, and continuing until further notice, SNG restricted the following:

    OPERATIONAL FLOW ORDERS (OFO)

    Type 6 OFO Warning

    Based on current milder temperatures resulting in lower demand on Southern's system, SNG encourages all shippers to manage their system requirements to maintain balance between actual receipts and deliveries.  An Operational Flow Order for long imbalances could be required to help ensure system integrity as Southern's Tariff provides that a Type 6 OFO can be implemented on four hours' notice or less prior to the start of the gas day.  - See Notice #710713

    RESTRICTIONS (POINT)

    ·         651320 (EGT/SNG PERRYVILLE OUACHITA)-R - Exceeds Operating Capacity - Reductions into OP Services

    RESTRICTIONS (SEGMENT)

    ·         50 (PICKENS EAST) BH - Exceeds Operating Capacity - Reductions into OP Services

    ·         380 (SNG - SESH) - Exceeds Operating Capacity - Reductions into OP Services

    ·         400 (GWINVILLE) - Exceeds Operating Capacity - Reductions through OP Services

    RESTRICTIONS (LINEPACK)

    Payback Due Pipe – No Restrictions

    Payback Due Shipper – No Restrictions

    RESTRICTIONS (STORAGE)

    Incremental Interruptible Storage (ISS) Injections not allowed - See Notice # 710565

    Type 3 / 4 OFO Probability (Unlikely (UL); Likely (L); Too Close to Call (TC); Highly Likely (HL)

    May 11, 2025 – UL

    May 12, 2025 – UL

    Type 6 OFO Probability (Unlikely (UL); Too Close to Call (TC); Highly Likely (HL)

    May 11, 2025 – UL for Short and HL for Long Imbalances

    May 12, 2025 – UL for Short and HL for Long Imbalances

     

     

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