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Overview of Predictions/Monitoring of 2004 Hurricanes A Presentation to the NOAA Science Advisory Board. Brig. Gen. David L. Johnson, USAF (Ret.) NOAA Assistant Administrator for Weather Services March 22, 2005. Outline. Purpose Issues Presentation of Briefing. Purpose.
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Overview of Predictions/Monitoring of 2004 HurricanesA Presentation to the NOAA Science Advisory Board Brig. Gen. David L. Johnson, USAF (Ret.)NOAA Assistant Administrator for Weather Services March 22, 2005
Outline • Purpose • Issues • Presentation of Briefing
Purpose • Present an information briefing on the 2004 Atlantic Hurricane season and discuss successes and opportunities for improvement
Issues Opportunities for Improvement • Improving Intensity Forecasts • Communicating Uncertainty • Multi-model Ensembles (AKA super-ensembles)
2004 Hurricane Season Summary • NOAA's seasonal hurricane outlook issued in May called for 12 to 15 named storms, six to eight hurricanes, and two to four major hurricanes. • Final season tally: 15 named tropical or subtropical storms with 9 hurricanes including 6 major hurricanes. • $45B in damages and 60 direct deaths in the U.S.
2004 Highlights FloridaHurricanes Charley Frances Ivan Jeanne
2004 Highlights Inland Flooding from Hurricanes
Opportunities for Improvement • Super-ensembles can produce superior forecast guidance • FSU Super-ensemble • GFS • GFDL
Opportunities for Improvement • Intensity forecasts • Charley is the example – fast intensification just before landfall
Opportunities for Improvement • Communicating Uncertainty • “Tampa, Tampa, Tampa” • 48-hour track error was 94 miles • Scope, pace, historical/forecasts, uncertainty of track, warnings/watches, inland/coasts
Wrap-Up Great Team-NOAA Performance!
NOAA Coordination & Views • NOAA-wide effort to improve
Desired Outcomes • Discuss Opportunities for Improvement • Improving Intensity Forecasts • Communicating Uncertainty • Multi-model Ensembles