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TSP/TSP Name:  6900518-SOUTHERN NATURAL GAS CO. Critical: Y
Notice Eff Date/Time:  04/19/2017 1:40:09PM Notice End Date/Time:  12/31/2049 9:00:00AM
Post Date:  4/19/2017 1:40:09 PM Notice ID: 701063
Reqrd Rsp:  1 Notice Stat Desc:  INITIATE Prior Notice: 
Subject:  Pipeline Conditions as of 04/20/2017
Notice Text:

The following information indicates Southern's most current system conditions and scheduling restrictions effective for gas day Thursday, April 20th and continuing until further notice. Any changes to these conditions or scheduling restrictions will be made using individual notices.

Operational Flow Order (OFO)



Transportation: Categories (Limited Operating Capacity Available; At Operating Capacity; At Operating Capacity-Reductions Expected)

South System:

Segment 580 (Savannah Line) – Capacity Available – Operating Capacity has been reduced to 145,000 per notice #700494


North System:

Location #609000 (Tex Gas/SNG Kosciusko) – Limited Operating Capacity Available


Linepack Constraints

Linepack Area Map

Restricting Payback due pipe effective Tuesday 04/18/2017, until further notice

Storage Constraints
Bear Creek
shut-in test start effective Tuesday 04/18/2017 thru Monday 04/24/2017.  CSS customers will be allocated (64%) of their currently effective DIQ and DWQ.  Please refer to notice ID: 701042

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

Probability Forecast:

April 20, 2017 UL

April 21, 2017 UL

April 22, 2017 UL

April 23, 2017 UL 


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


April 20, 2017 UL for Long and Short Imbalances

April 21, 2017 UL for Long and Short Imbalances

April 22, 2017 UL for Long and Short Imbalances

April 23, 2017 UL for Long and Short Imbalances


Southern will evaluate system conditions and supply nominations very closely for each cycle. If Southern determines that adverse changes have occurred in system conditions and/or one of the scheduling cycles, Southern' s Tariff provides that a Type 6 OFO can be implemented on four hours' notice or less depending on the situation.

Southern requests that all Shippers/Poolers monitor the balance between actual receipts and deliveries to ensure that an out-of-balance situation does not occur. As you are aware, both long and short out-of-balance situations can threaten the operational integrity of the system.

For questions, please contact your Account Manager or Scheduling Representative