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PACJET Projects

HMT 2004 PACJET 2003 PACJET 2002 PACJET 2001 CALJET 1998

PACJET 2001 IOPs

IOP 1: 20 Jan 2001 IOP 2: 23 Jan 2001 IOP 3: 25 Jan 2001 IOP 4: 31 Jan 2001 IOP 5: 1 Feb 2001 IOP 6: 6 Feb 2001 IOP 7: 9 Feb 2001 IOP 8: 10 Feb 2001 IOP 9: 11 Feb 2001 IOP 10: 12 Feb 2001 IOP 11: 17 Feb 2001 IOP 12: 18 Feb 2001 IOP 13: 21 Feb 2001 IOP 14: 24 Feb 2001 IOP 15: 25 Feb 2001 IOP 16: 1 Mar 2001

Background

About Pacjet CALJET Summary Societal Impacts and User Input Linkages to National Priorities USWRP   Data Assimilation Implementation Plan March 2001 Program Status Report PACJET 2001 Poster NSSL Briefing

Program Documents

PACJET and a Long-term Effort to Improve 0-24 h West Coast Forecasts Overview Poster

Research Participants

NOAA Research   ETL,   NSSL,   FSL,   AL,   CDC National Weather Service Western Region   Eureka,   Hanford,   Medford,   Monterey,   Oxnard,   Portland,   Reno,   Sacramento,   San Diego,   Seattle,   CNFRC Office of Marine and Aviation Operations   AOC Naval Postgradute School DRI CIASTA CIRES SUNY Stony Brook National Centers for Environmental Prediction   EMC,   HPC,   MPC National Environmental Satellite, Data and Information Service   CIMSS,   CIRA

Operational Forecasting Components

COMET Presentation West Coast RUC Aircraft Obs via AWIPS GWINDEX Poster Applications Development

Research Components

Modeling Research Components

Related Experiments

Winter Storm Reconnaissance (Central Pac.) CRPAQS (CA Air Quality) IMPROVE (Microphysics) THORPEX (Synoptic Targeting)

Observing Systems

AEROSONDE NOAA P-3 Wind Profiler Network Satellite Products NOAA S-band Radar

Contacts

Program Media Contacts Webmaster

Workshops

2001 - Monterey, CA July 13-14 2000 (Boulder, CO) July Workshop Agenda September 1999 - Monterey, CA 1999 Planning Workshop Figures June 1998 - CALJET

 

Program Status for Thursday, 1 March 2001 Status | Observations | Forecast Discussion | Flight Plan | Soundings Status Status Updated: 1130 PST Thursday, March 1 Next Update: 1500 PST Friday, March 2. Thursday, March 1 No weather briefing. P3 flight canceled due to mechanical problems. Friday, March 2 Final program weather briefing at 1000 PST. G-IV flight scheduled for 1200 PST (2000 UTC) take off. P3 down for maintenance. Dropsondes from the NOAA G-IV aircraft and their apparent impact on Aviation (AVN) model analysis 0000 UTC 1 March 20001 during PACJET IOP 16. The 12-h forecast low center was 989 mb, while the observations indicated a central pressure <978 mb, likely 974-976 mb. The AVN analysis, which included the dropsonde data, produced a 979 mb low and nearby winds much closer to reality than the previous 12-h forecast valid at that time. (A) Aviation model 12-h forecat of mean sea level pressure and 1000 mb winds initialized at 1200 UTC 28 Feb 2001, valid at 0000 UTC 1 March 2001. The track of the NOAA G-IV and approximate locations of dropsondes launched and transmitted between 2200 UTC 28 Feb and 0245 UTC 1 Mar for assimilation into the operational models are also shown. Selected dropsonde observations of surface wind and pressure are shown for comparison. (B) As in (A), but the AVN model output shown is the analysis valid at the same time as in (A) (0000 UTC 1 Mar 2001), after assimilation of PACJET G-IV dropsonde observations. Status | Observations | Forecast Discussion | Flight Plan | Soundings Status Observations 1730 UTC IOP 16 has been canceled due to mechanical problems. The P3 is due in Monterey at 1100 PST. 1707 UTC at 40.0N, 124.74W heading: 326deg at 18000 ft (32 min to pt 1) At 505mb: winds: 307deg, 43kt air temp: -14.4degC dewpt temp: -16.0degC 1646 UTC at 38.78N, 123.72W heading: 325deg, at 18000 ft (1h to pt 1) at 506mb: winds: 301deg, 32kt air temp: -15.6degC dewpt temp: -17.5degC mix rat: 1.9g/kg 1626 UTC at 37.67N, 122.83W heading: 329deg at 18000 ft (1h 10 min to pt 1) at 505mb: winds: 337deg, 34kt air temp: -16.2degC dewpt temp: -19.4degC mix rat: 1.6g/kg 1605 UTC Out of MRY: at 850mb level winds: 189deg, 13kt air temp: 2.4degC dewpt temp: -7.1degC Status | Observations | Forecast Discussion | Flight Plan | Soundings Status Forecast Discussion Status | Observations | Forecast Discussion | Flight Plan | Soundings Status Flight Plan MRY - 1 80 - FL200 Transit 1 Spiral descent to 1000 ft. 1-2 Flux stack; four 15 minute legs 500 to 3,800 ft. 2-3 1,000 ft. 3 Spiral ascent to FL200. 3-4 FL200 4 Spiral descent to 1,000 ft. 4-5-6-7 1,000 ft. 7-6-7 Repeat 1,000 ft. legs. 7-8 1,000 ft. 8 - MRY Transit Status | Observations | Forecast Discussion | Soundings Status Sounding Status 1 March Bodega Bay No soundings. Cazadero No soundings. Oakland No special soundings requested. Reno No special soundings requested. 2 March Bodega Bay No soundings. Cazadero No soundings. Oakland No special soundings requested. Reno No special soundings requested.