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Forecast Pressure.

Published byMartha Lawrence Modified over 6 years ago

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Presentation on theme: "Forecast Pressure."— Presentation transcript:

1 Forecast Pressure

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3

4 ASOS Pressure Sensor

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8

9 12-km

10 An example of a short-term forecast error
Eta 24-h 03 March 00UT 1999 Eta 48-h 03 March 00UT 1999

11 48-hr Forecasts Valid 00 UTC 8 February 2002
AVN ETA UKMO NOGAPS

12 24-Hr Forecasts Valid 00 UTC 8 February 2002
AVN ETA UKMO NOGAPS

13 Station Locations Tatoosh Is. Cape Arago

14 TTI, WA 24 h Coastal Errors Cape Arago, OR Large Errors
Inter-annual variability

15 48-h Errors 48h errors much larger and frequent than 24-h errors

16 GFS vs. Eta 24-h errors NCEP GFS better than Eta on average

17 48-h errors Eta under forecasts GFS over forecasts

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