1. Presented to: NWS Aviation Weather Users By: Danny Sims, Manager of Traffic Flow Management Weather Programs, FAA Date: 18 November 2008 Federal Aviation Administration Air Traffic Control System Command Center Use of Weather Products for the National Airspace System

2. ATCSCC Use of Weather Products 2 Federal Aviation Administration 18 November 2008 Overview Weather delays ATCSCC Overview A Day in the NAS Possible Future Products

3. ATCSCC Use of Weather Products 3 Federal Aviation Administration 18 November 2008 Weather Delays About 70% of delays in the National Airspace System (NAS) consistently attributed to weather Leading causes are: –Thunderstorms En route and terminal –Winds –Ceiling and Visibility –Snow –Hurricanes

4. ATCSCC Use of Weather Products 4 Federal Aviation Administration 18 November 2008 ATCSCC Overview Responsible for balancing air traffic demand with system capacity across the NAS

5. ATCSCC Use of Weather Products 5 Federal Aviation Administration 18 November 2008 ATCSCC Overview At any one time, there may be over 5000 flights in the NAS

6. ATCSCC Use of Weather Products 6 Federal Aviation Administration 18 November 2008 ATCSCC Overview National System Strategy Team (NSST) –Traffic Management Focal Point –Responsible for developing the Operations Plan –Coordination responsibilities National, regional, and international Tactical Customer Advocate –Works matters specific to airline-defined critical flights Weather Unit –Provides current and forecasted weather information

7. ATCSCC Use of Weather Products 7 Federal Aviation Administration 18 November 2008 A Day in the NAS Start with a big picture look

8. ATCSCC Use of Weather Products 8 Federal Aviation Administration 18 November 2008 A Day in the NAS Continue with leading airport forecasts KEWR 131734Z 1318/1424 13009KT 3SM RA BR SCT008 OVC010 TEMPO 1318/1321 1 1/2SM RA BR OVC008 FM132100 14008KT 5SM SHRA BR OVC012 FM140400 10004KT 4SM -DZ OVC010 TEMPO 1407/1411 1SM BR OVC007 FM141200 24005KT 4SM BR OVC015 FM141500 22007KT P6SM BKN025 FM141800 19007KT P6SM SCT030 BKN060 KLGA 131859Z 1319/1418 12011KT 3SM RA BR OVC013 TEMPO 1319/1321 1 1/2SM RA BR OVC006 FM132100 13011KT 5SM SHRA BR OVC015 FM140400 12005KT 4SM -DZ OVC012 TEMPO 1407/1411 1SM BR OVC008 FM141200 22006KT 4SM BR OVC015 FM141500 21008KT P6SM BKN025 KJFK 132013Z 1320/1424 13013KT 6SM RA BR FEW009 OVC013 FM132100 13011KT 6SM BR OVC013 FM140400 14007KT 4SM -DZ OVC012 TEMPO 1407/1411 1SM BR OVC008 FM141200 21006KT 4SM BR OVC015 FM141500 20008KT P6SM BKN025 FM141800 19008KT P6SM SCT030 BKN060

9. ATCSCC Use of Weather Products 9 Federal Aviation Administration 18 November 2008 A Day in the NAS The Strategic Planning process 0-6 hours into the future Updated every 2 hours beginning at 0515 local Strategic Telecons facilitated by ATCSCC Collaborative Decision Making (CDM) participants FAA facilities Aviation industry CDM is a philosophy on how to conduct business between the various components of aviation transportation, both government and industry. Two central principles are: Information exchange and data sharing Tools and procedures in place

10. ATCSCC Use of Weather Products 10 Federal Aviation Administration 18 November 2008 A Day in the NAS Look at current weather radar with air traffic

11. ATCSCC Use of Weather Products 11 Federal Aviation Administration 18 November 2008 A Day in the NAS Airport tactical responses (0-1 hour) with Integrated Terminal Weather System (ITWS)

12. ATCSCC Use of Weather Products 12 Federal Aviation Administration 18 November 2008 A Day in the NAS Regional tactical responses (0-2 hour) with Corridor Integrated Weather System (CIWS)

13. ATCSCC Use of Weather Products 13 Federal Aviation Administration 18 November 2008 A Day in the NAS Look at forecasted conditions with the Collaborative Convective Forecast Product (CCFP)

14. ATCSCC Use of Weather Products 14 Federal Aviation Administration 18 November 2008 CCFP Characteristics Coverage –Sparse: 25-49% –Medium: 50-74% –Solid: 75-100% Echo Tops (feet) –25 – 31K –31 – 37K –> 37K Confidence –Low: Gray –High: Blue Snapshot –2, 4, 6 hour

15. ATCSCC Use of Weather Products 15 Federal Aviation Administration 18 November 2008 A Day in the NAS Identify demand/capacity imbalances

16. ATCSCC Use of Weather Products 16 Federal Aviation Administration 18 November 2008 A Day in the NAS The ATCSCC devises a suitable plan with other Air Traffic facilities and system users for addressing constraints. Through coordination with affected air traffic facilities and users, an operations plan is developed to ensure the safe and orderly flow of air traffic around impacted areas. As the weather changes, the plan can be revised and, if necessary, new routings or restrictions are issued. ATCSCC ADVZY 029 DCC 11/10/2008 OPERATIONS PLAN MESSAGE: ATCSCC ADVZY 029 DCC 11/10/08 OPERATIONS PLAN VALID 101700 THRU 102300 TERMINAL CONSTRAINTS: BOS/NY METROS/PHL-WIND DFW/IAH-RA/VCTS SFO/SEA-LOCIGS EWR-RWY22L ILS OTS UNTIL 11/20 11Z LAS-RWY 7R/25L CLSD UNTIL 05/01/09 LAX-RWY 6R/24L CLSD TO ARRIVALS UNTIL 11/15 EN ROUTE CONSTRAINTS: ZKC/ZFW/ZHU-TSTMS GDT RADAR OTS 1800-0200, NOTAM A0652/08 1. ROUTES UNTIL 1800-DEN S ARRIVAL UNTIL 2330-NO BKW TO EWR/LGA 1830-0415-CHOKEPOINTS EWR/JFK 2. ZNY UNTIL 0259-EWR GROUND DELAY PROGRAM 3. ZHU AFTER 1900-IAH GROUND STOP POSSIBLE 4. ZLA UNTIL 0359-LAS GAAP GROUND DELAY PROGRAM 5. ZOA UNTIL 1959-SFO GROUND DELAY PROGRAM NEXT OPERATIONS PLAN: 1815Z 101627-101859 08/11/10 16:27 EFFECTIVE TIME: 101627 - 101859 SIGNATURE: 08/11/10 16:27

17. ATCSCC Use of Weather Products 17 Federal Aviation Administration 18 November 2008 A Day in the NAS Types of Traffic Management Initiatives Reroutes Avoid constraints Miles in Trail (MIT) # of miles required between aircraft Airborne Holding Dependent upon airspace Sequencing Specified interval between aircraft Ground Delay Program (GDP) Aircraft delayed at departure airport to manage demand and capacity at arrival airport Airspace Flow Program (AFP) Aircraft delayed due to en route constraint Ground Stops Aircraft remain on the ground; usually reactive

18. ATCSCC Use of Weather Products 18 Federal Aviation Administration 18 November 2008 Localized Aviation MOS Program (LAMP) Thunderstorm Probability Under consideration to augment CCFP at extended times http://www.nws.noaa.gov/mdl/gfslamp/tstorm.php Possible Future Products

19. ATCSCC Use of Weather Products 19 Federal Aviation Administration 18 November 2008 Integration of CIWS into Traffic Management Decision Support Tools Possible Future Products Decision support tools

20. ATCSCC Use of Weather Products 20 Federal Aviation Administration 18 November 2008 Possible Future Products Consolidated Storm Prediction for Aviation (CoSPA)

21. ATCSCC Use of Weather Products 21 Federal Aviation Administration 18 November 2008 Questions? Special thanks to Brad Sherman & Dan Kremnitzer at the ATCSCC For further information, please contact danny.sims@faa.gov 703-326-3938