Delta Air Lines Meteorology

DELTA AIR LINES, INC. 8/14/2015Delta Meteorology2 Department Information Begin in 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

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

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

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

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

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

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

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

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

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

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

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.

DELTA AIR LINES, INC. 8/14/2015Delta Meteorology14 DCA Max Cross Wind MD88/9030 B B W33 B B76729 B77738 Wind Direction Runway 01/19 Max winds to stay below 29kt Cross Wind

DELTA AIR LINES, INC. 8/14/2015Delta Meteorology15 Delta TAF Example TERMINAL FORECAST ATL DL AMD 02 VALID UTC FM KT 2SM -RA FG OVC003 TEMPO 1SM -RA FG FM KT 2SM -RA FG OVC008 FM KT 5SM -RA OVC010 FM KT 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.

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

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

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

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

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

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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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?