Aviation Meteorology A Northwest Airlines Perspective Tom Fahey, Manager Meteorology American Meteorological Society - Memphis Chapter 20 September 2005.
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Presentation on theme: "Aviation Meteorology A Northwest Airlines Perspective Tom Fahey, Manager Meteorology American Meteorological Society - Memphis Chapter 20 September 2005."— Presentation transcript:
MEM September 2005 - 11 Operational Efficiency NWA Historical Perspective 1980’s Flight Planning for En Route - Manual Wind Forecasts by Meteorologist - Route Selection by Meteorologist 1990’s Terminal Area Operations - Individual Flight Focus - Currently 3 TAF’s by NWA & Rest from NWS Mid 1990 - Current System Efficiency - CDM (Collaborative Decision Making)
MEM September 2005 - 12 CCFP (Collaborative Convective Forecast Product) 1998 Test Lead by NWA 1999 Operational @NWS AWC Since 2003 Issued every 2 hrs 2, 4, & 6 Hour Fcsts Used by Traffic Flow Mngmnt Collaborative Forecast - CWSU’s @ FAA ARTCC’s - Environment Canada - Airline Meteorologists - NWS AWC
MEM September 2005 - 13 CCFP CCFP Purpose: Identify En Route Airspace Impacted Significantly.
MEM September 2005 - 14 Collaborative Decision Making Tstrm Routing - Terminal Area Flt Dispatchers & Pilots @ an Airline and Air Traffic Managers @ FAA & Airline use Fcsts & Obs to decide on routes around tstrms when departing an airport.
MEM September 2005 - 16 NWA Meteorology Products Fcsts Supporting Safety & Efficiency - Air Traffic Management During Convection - Station Ops During Deicing - Station Ops During Tropical Activity - Clear Air &Terrain Induced Turbc Avoidance
MEM September 2005 - 17 Preflight Routing-Tstrm Avoid Preferred Route for time & burn.
MEM September 2005 - 18 Preflight Routing-Tstrm Avoid White Line most days. Green Line today.
MEM September 2005 - 19 Station Ops During Deicing Name this Airport: AMS ? DTW ? IND ? MEM ? MKE ? MSP ? NRT ? Meteorology Fcsts for 5 NWA hub airports - Which Ones?
MEM September 2005 - 20 Aviation Safety Requires Deicing
MEM September 2005 - 21 What Station? Deicing Fcsts Support Efficiency Decision Support - Staffing - Equipment Prep - Flight Thinning
MEM September 2005 - 22 Winter Weather Depiction Covers 5 Hub areas & E. Coast stns
MEM September 2005 - 23 Tropical Weather Depiction Also Issued for East Pacific (btwn Mexico & HNL), Asia Pacific & India
MEM September 2005 - 24 Clear & Mtn Wave Turbulence Avoidance NWA’s Turbulence Plot System - Meteorologist Forecasting Procedures - Preflight Graphics & Outlooks - For Route Selection by Dispatchers - En Route Updates to Dispatchers & Pilots
MEM September 2005 - 25 1. 700mb wind >30kts - wave develops 2. Wave begins to propagate vertically if 500mb/700mb wind ratio 1.5-2.0 & Stable layer at or near Mtn peaks 3. Heights begin packing near surface 4. Upper level waves reach tropopause & begin to break and reflect back down 5. Downslope windstorm ensues. 700mb 1. 2. 3. 4. 5. Vertical Propagating Breaking Waves. Waves: Step 1 Starts @ Mt Peaks Step 2 & 3 Develops Vertically
MEM September 2005 - 26 Severe Rotor turb Vertically propagating Breaking mountain wave Turbulence (+) Mountain top Stable layer 2 Layers of Focus Mtn Wave Fcst Procedures Model
MEM September 2005 - 27 Preflight Graphics A General Overview CAT & Mtn Waves
MEM September 2005 - 28 The Turbulence Plot Messages The Details - Continuous Updates Preflight Graphics - For Pilot & Dispatcher En Route Updates - For Dispatcher & Text for Pilot 8 Hazards Including Including Clear & Mtn Wave Turbc Dispatchers’ Tool ASD
MEM September 2005 - 29 The Turbulence Plot Messages Pilots’ Tool Web Wx