Weather brief

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Wx brief-20120518-sm
An in-depth look at the weekend's weather

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  • Previous week’s forecast validation. Red is obs from Wellington Airport, Black is the EcoCx forecast
  • Plots comparing EcoConnect forecast against obs for Wellington Airport for 3 forecast periods over the previous weekend.
  • Latest (Friday AM) MetService Surface analysis and IR imagery
  • Current (Friday AM) weather obs from MetVUW
  • Latest (Friday AM) MetSerive NZ radar
  • EcoConnect forecast from 12km NZLAM NWP model
  • EcoConnect forecast from 12km NZLAM NWP model
  • EcoConnect forecast from 12km NZLAM NWP model
  • EcoConnect forecast from 12km NZLAM NWP model
  • “ Fuzzy precip” from MOS output suggest chance of light showers through to Sat PM
  • 2-day Wellington Airport meteogram (from 12km resolution NZLAM model)
  • Wellington 6-day forecast (from Met Office global model data)
  • Summary for next couple of days (Wellington Airport) compared to MetService forecast
  • Weather brief

    1. 1. Weekend Weather Briefing 18th May 2012 This slide was presented by Stuart Moore from Niwa on 18 May. I have added comments and explanations in clouds like this oneData from:
    2. 2. Last week’s forecast• Fri 11th: Tmax: 13.1ºC, Tmin: 8.6ºC, Windmax: 10.4kts, Windmin: 1.2kts, Mean dir: S• Showers clearing, Mod-fresh S, Tmax 13ºC• Sat 12st: Tmax: 14.8ºC, Tmin: 6.4ºC, Windmax: 17.7kts, Windmin: 2.3kts, Mean dir: N• Fine, early low cloud lifting, N freshening PM, 11-15ºC• Sun 13th: Tmax: 17.6ºC, Tmin: 13.1ºC, Windmax: 17.3kts, Windmin: 10.5kts, Mean dir: N, 5mm rain up to 9am Monday• Fine at first, showers from midday,• fresh N strengthening, 13-16ºC Previous week’s forecast validation. Red is obs from Wellington Airport, Black is the EcoCx forecast• Mon 14th: Tmax: 15.6ºC, Tmin: 13.0ºC,• Windmax: 25.9kts, Windmin: 12.1kts, Mean dir: N
    3. 3. Last week’s forecastPlots comparing EcoConnectforecast against obs forWellington Airport for 3forecast periods over theprevious weekend.
    4. 4. Current Situation Surface analysis, 0600hrsLatest (Friday AM) MetServiceSurface analysis and IRmagery IR, 0600hrs
    5. 5. Current Obs – 0600hrs Current (Friday AM) weather obs from MetVUW
    6. 6. Radar Observation @ 0805 Latest (Friday AM) MetSerive NZ radar
    7. 7. Fri 12pmEcoConnect forecastfrom 12km NZLAMNWP model
    8. 8. Fri 6pmEcoConnect forecastfrom 12km NZLAMNWP model
    9. 9. Sat 6amEcoConnect forecastfrom 12km NZLAMNWP model
    10. 10. Sat 6pmEcoConnect forecastfrom 12km NZLAMNWP model
    11. 11. “Fuzzy precip” from MOSoutput suggest chance oflight showers through toSat PM
    12. 12. 2-day Wellington Wellington 2-day ForecastAirport meteogramfrom 12kmesolution NZLAMmodel) dir for Wi tion an see ) ec ce nd d slid ( e5
    13. 13. Wellington 6-day Wellington 6-day Forecastorecast (from MetOffice global model ata)
    14. 14. Wellington SummarySummary for next ouple of days •Wellington Airport) Today (18th):, 10-15ºC, S winds increasing to 20-25kts, possible ompared toMetService forecast showers around midday • Sat 19th: 9-12ºC, S continuing around 20kts but easing in late PM, possible light showers through the day • Sun 20th: 10-12ºC, S easing further to light winds, staying dry • Mon 21st: 10-12ºC, S through day to N by late PM, staying dry

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