delta air lines meteorology. delta air lines, inc. 8/14/2015delta meteorology2 department...
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DELTA AIR LINES, INC.04/19/23Delta 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
DELTA AIR LINES, INC.04/19/23Delta Meteorology3
Primary Customers
• Flight Control and OCC• Flight Operations• In-Flight• Stations• De-Icing Operators
DELTA AIR LINES, INC.04/19/23Delta 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.04/19/23Delta 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.
DELTA AIR LINES, INC.04/19/23Delta Meteorology8
Current Text Distribution
Meteorologisttypes forecast
Main Frame
DispatcherQueue
Flight’s MetroBriefing Message
FlightsAffected
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Monitors:PIREPS – for icing and turbulenceVolcano Activity
Suggest:Smoothest Flight Levels
Upper Air Meteorologists
DELTA AIR LINES, INC.04/19/23Delta 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
DELTA AIR LINES, INC.04/19/23Delta 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
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DELTA TAF CITIES
SLC
LAXATL
MCO
CVG
DCA, IAD, BWI
PHL
LGA, JFK, EWR
BOS
TAF Cities
DELTA AIR LINES, INC.04/19/23Delta Meteorology13
DCARunway 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.04/19/23Delta Meteorology14
DCAMax Cross Wind
MD88/90 30
B737-800 36
B737-800 W 33
B757-200 29
B767 29
B777 38
Wind Direction
Runway 01/19Max winds to stay below
29kt Cross Wind
360 60+
040 51
090 29
140 41
180 60+
220 51
270 29
310 35
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Delta TAF Example
TERMINAL FORECASTATL 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 OVC015DISCUSSION – 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.
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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: