Forecast Trajectory Maps
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| HYSPLIT Forecast Trajectories | |||||||||||||||||
| Volcano | Trajectory start time after model initialization (hrs) | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| +6 | +12 | +18 | +24 | ||||||||||||||
| NAM | GFS | NAM | GFS | NAM | GFS | NAM | GFS | ||||||||||
| Cleveland |  |
 |
 |
 |
 |
 |
 |
 |
txt | txt | txt | txt | txt | txt | txt | txt | |
| Veniaminof |  |
 |
 |
 |
 |
 |
 |
 |
txt | txt | txt | txt | txt | txt | txt | txt | |
Disclaimer
Trajectory tutorial
txt - Trajectory endpoints format help
Forecast Details
Forecast trajectories for Alaska are
summarized above. The 6-h duration forward trajectories begin at
the specified number of hours after the start of the meteorological model initialization.
The trajectories are computed using
meteorological fields output from the NOAA
National Centers for Environmental Prediction (NCEP) North American Meso (NAM) and the Global Forecast System (GFS)
forecast models.
Details on the NAM and GFS gridded data used in these
calculations are available HERE.
Trajectories starting at different heights are shown
in different colors. The
trajectory endpoints are plotted on maps (gif) and displayed
in text files (txt).
*Note that the NAM and GFS trajectories are updated separately because the
NAM and GFS models are run at different times at NCEP.
Related Links
Anchorage Volcanic Ash Advisory Center (VAAC)Alaska Volcano Observatory (AVO)
HYSPLIT for current eruptions
HYSPLIT for hypothetical eruptions
Run HYSPLIT for any volcano.
Inquiries should be addressed to:
Barbara Stunder
Email: 
barbara.stunder@noaa.gov