CALJET Agenda

20 minutes are provided for each presentation, including 3-5 min for questions and discussion. Additional time is set aside at the end of each session for further discussion. There is no registration fee.

Monday 8 June
Introduction 1:00-1:20	Marty Ralph Meeting goals and brief CALJET
Overview 1:20-1:40	John Gaynor A Review of Other Measurements Made During The NOAA EL Niño Rapid Response Activity
Session A: Operational experiences and needs during winter 1997/98 Session Chair: Jon Mittelstadt
1:40-2:00	Owen Rhea Hydrologic summary from the California-Nevada River Forecast Center
2:00-2:20	Boni Bigornia The "New" Impacts of Forecasting on California Water Management
2:20-2:40	Jim Giraytys FEMA experiences during the El Niño and the use of the forecasts
2:40-3:00	Jim McFadden Aircraft use during CALJET and NORPEX, and status of the data
3:00-3:20	Tracy Cox CALJET interaction with NWSFO MTR's Warning Program: Feb. 2-3, '98
3:20-4:00	Break
4:00-4:20	Jay Rosenthal Forecast problems in coastal Southern California
4:20-4:40	Greg Martin S. California forecast experiences and needs during the 97/98 El Niño
4:40-5:00	Bill Forewood A brief description of winter97-98 and its effect on Northwest California
5:00-5:30	Discussion Topics: What were the most serious forecast needs and problems in California this last winter? How might these needs and problems be better met in the future?
Tuesday 9 June Session B: Issues in numerical modeling and targeting Session Chair: Jian-Wen Bao
8:00-8:20	Mel Shapiro NORPEX overview and results
8:20-8:40	Jian-Wen Bao Use of the MM5 adjoint model in CALJET planning and research
8:40-9:00	Istvan Szunyogh Ensemble-based targeting experiments during CALJET
9:00-9:20	Jerry Schmidt Verification of COAMPS moist physics
9:20-9:40	Warren Blier A remarkable heavy precipitation event in S. CA: Observations and mesoscale simulations
9:40-10:00	Discussion Topics: What parameters output from numerical models are used most frequently by forecasters at local NWS offices, and what parameters important for local forecasting are poorly described by numerical models? Should we try to develop a coordinated effort to evaluate the effectiveness of different data assimilation methods in short-term coastal QPF?
10:00-10:30	Break
Session C: Coastal microphysics and dynamics Session Chair: Ola Persson
10:30-10:50	Owen Rhea Use and expansion of an orographic QPF aid
10:50-11:10	John Hallett Giant nuclei in drizzle and precipitation: Initiation of coalescence
11:10-11:30	Dave Kingsmill Microphysical observations during CALJET and their application to precipitation monitoring by the WSR-88D
11:30-11:50	Allen White The 3 GHz radar at Cazadero
11:50-1:00	Lunch
1:00-1:20	Jack Dostalek Satellite observations of eastern Pacific cyclones during CALJET
1:20-1:40	Ola Persson Airborne observations of the structure and the vertical stability of the low-level jet in two CALJET cyclones
1:40-2:00	Clark King West coast boundary layer structure in land-falling winter storms
2:00-2:20	Paul Neiman Coastal frontal occlusions
2:20-2:40	Marty Ralph The blocking front
2:40-3:00	A.Shapiro Doppler on Wheels research goals
3:00-3:20	J. Wurman Doppler on Wheels measurement capabilities and data summary
3:20-3:50	Discussion Topics: Is the seeder-feeder mechanism the paradigm for heavy coastal rain? What important modifications to this mechanism should or will be examined? What microphysical precipitation information would be of most use to real-time forecasting? What features found within storms before landfall are critical for understanding heavy coastal rains and winds and ultimately for better predicting them? Knowledge of what offshore aspects of the storms are most useful in real-time forecasting?
4:30-8:30 PM	Catered picnic at Walker Ranch picnic area ($16 per adult).
Wednesday 10 June Session D: El Niño and coastal air-sea interaction Session Chair: Jim Wilczak
8:00-8:20	Klaus Wolter ENSO impacts on California precipitation
8:20-8:40	Jeff Whitaker Assessing the impact of El Niño on individual weather systems: Experiments with the MRF ensemble
8:40-9:00	Ola Persson Airborne measurements of air-sea fluxes obtained in the eastern extratropical Pacific Ocean during an El Nino winter: Motivation, strategy and observational summary
9:00-9:20	Bernie Walter Preconditioning by surface fluxes ahead of a developing cyclone
9:20-9:40	John Bane Ocean and atmospheric boundary layer measurements off Southern California
9:40-10:00	Jim Wilczak Upper-ocean thermal structure and its influence on land-falling storms during CALJET
10:00-10:20	Discussion Topics: When did the impacts of El Niño start along the coast of California? What is an El Nino Storm?
10:20-10:50	Break
10:50-12:15	Wrap up discussion Topics: What is the status of various datasets? What are the needs and mechanisms for data exchange? Recommendations for analysis and modeling approaches: What analyses should be done to better understand precipitation mechanisms along the coast? What role does the LLJ play in causing heavy precipitation and damaging winds? What governs the development or absence of damaging winds at the coast in land-falling storms? How should the accuracy of numerical weather forecasts be assessed? What strategies to use to test the impact of experimental data on numerical weather prediction? What aspects of CALJET and NORPEX were most valuable to operational forecasters? How could the strategies for data collection and operational use be improved? Would it be feasible and useful to couple a mesoscale model with a hydrological model to predict floods and or better manage water resources? Outline of a BAMS article