1. Delta Air Lines Meteorology

2. DELTA AIR LINES, INC. 8/14/2015Delta Meteorology2 Department Information Begin in 1960 12 Meteorologist 2-3 Meteorologist on-shift every hour, every day 1 Surface Forecaster 1-2 Upper Air Forecaster Weather data comes in from WSI and the NWS

3. DELTA AIR LINES, INC. 8/14/2015Delta Meteorology3 Primary Customers Flight Control and OCC Flight Operations In-Flight Stations De-Icing Operators

4. DELTA AIR LINES, INC. 8/14/2015Delta Meteorology4 Upper Air Hazards Metro Alerts include: Turbulence Mountain Waves Thunderstorms Low Level Turbulence/Wind Shear Tropical Systems Volcanic Ash Icing

5. DELTA AIR LINES, INC. 8/14/2015Delta Meteorology5 Upper Air Turbulence Chart

6. DELTA AIR LINES, INC. 8/14/2015Delta Meteorology6 Upper Air Turbulence Chart

7. DELTA AIR LINES, INC. 8/14/2015Delta Meteorology7 Metro Alert Example SE1 031908-041500 ******* SOUTH CENTRAL REGION ****** OVR MS-GA-SC-NC..FM SJI-MCN-CAE-RDU.. 100NM WIDE LINE OF LGT-MDT TURBC AT FL340- 390/TROP MOVG SE 10KTS.

8. DELTA AIR LINES, INC. 8/14/2015Delta Meteorology8 Current Text Distribution Meteorologist types forecast Main Frame Dispatcher Queue Flight’s Metro Briefing Message Flights Affected

9. DELTA AIR LINES, INC. 8/14/2015Delta Meteorology9 Monitors: PIREPS – for icing and turbulence Volcano Activity Suggest: Smoothest Flight Levels Upper Air Meteorologists

10. DELTA AIR LINES, INC. 8/14/2015Delta Meteorology10 ** NORTH ATLANTIC EBND FLT PLANNING MSG - 14 NOV 08 ** / 1. COLD TEMPS..ERN TRACKS-EUROPE (FL370-390)..SEE MAP / 2. RTES/FLS.. COASTAL NEW ENGLAND: SUGG AOB FL320..NBFL LOWER. OVR SERN CANADA: SUGG FL340-360..NBFL HIGHER. TRACKS/SRN RANDOMS (32-20W): SUGG FL310-340..NBFL HIGHER. OVR WRN EUR: MIN COST..NBFL HIGHER. SCANDINAVIA/ERN EUROPE/WRN RUSSIA: SUGG 270-340..NBFL HIGHER. / 3. ETPS.. YYT/YQX/YJT/YYR..USEABLE. KEF/TER..USEABLE. DUB/GLA..USEABLE. TRD/OSL..USEABLE. LIS..USEABLE. Flight Planning Message Example

11. DELTA AIR LINES, INC. 8/14/2015Delta Meteorology11 Normal Operations: 3 Shift Change Briefings with Stations Dispatcher Briefings Planning for the week/weekend TAFs Irregular Operations (IROPS): Tropical Activity Major Snowstorm Surface Desk

12. DELTA AIR LINES, INC. 8/14/2015Delta Meteorology12 DELTA TAF CITIES SLC LAX ATL MCO CVG DCA, IAD, BWI PHL LGA, JFK, EWR BOS TAF Cities

13. DELTA AIR LINES, INC. 8/14/2015Delta Meteorology13 DCA Runway 04/22: 4911 feet Runway 15/33: 5204 feet Runway 01/19: 6869 feet Our aircraft fleet generally prefers 5500ft. Leaves operation on Runway 01/19 Strong winds from the west or east cause crosswind issues.

14. DELTA AIR LINES, INC. 8/14/2015Delta Meteorology14 DCA Max Cross Wind MD88/9030 B737-80036 B737-800 W33 B757-20029 B76729 B77738 Wind Direction Runway 01/19 Max winds to stay below 29kt Cross Wind 36060+ 04051 09029 14041 18060+ 22051 27029 31035

15. DELTA AIR LINES, INC. 8/14/2015Delta Meteorology15 Delta TAF Example TERMINAL FORECAST ATL DL 231405 AMD 02 VALID 231405-240400 UTC FM231400 09010KT 2SM -RA FG OVC003 TEMPO 1SM -RA FG FM232000 17010KT 2SM -RA FG OVC008 FM232200 29010KT 5SM -RA OVC010 FM240000 31012KT 7SM OVC015 DISCUSSION – LOW CIGS WILL IMPROVE AFTER FRONT MOVES THRU AND WINDS BECOME FROM THE WEST. Extra fuel and alternates are needed when clouds are below 1000ft or visibility is below 2SM or thunderstorms are forecast.

16. DELTA AIR LINES, INC. 8/14/2015Delta Meteorology16 Deicing Chart

17. DELTA AIR LINES, INC. 8/14/2015Delta Meteorology17 Deicing Chart

18. DELTA AIR LINES, INC. 8/14/2015Delta Meteorology18 Hurricane Chart

19. DELTA AIR LINES, INC. 8/14/2015Delta Meteorology19 Deicing Chart

20. DELTA AIR LINES, INC. 8/14/2015Delta Meteorology20 Long Range Planning Forecast – Day 1- 5

21. DELTA AIR LINES, INC. 8/14/2015Delta Meteorology21 Flight Planning System uses GFS Wind forecast. Back-up source is UKMO. Also Supply: Radar Satellite Lightning Charts Text Data (METARS, TAFS, SIGMETS, etc) Delta Meteorology Provides:

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27. DELTA AIR LINES, INC. 8/14/2015Delta Meteorology27 My weather radar became inop. Can I continue to my destination? Will that broken line of thunderstorms become solid? What does that unusual code in the TAF/METAR mean? What is the best alternate? What do you think about the SIGMET?