Forecast Trajectory Maps
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| HYSPLIT Forecast Trajectories | |||||||||
| Direction | Start Day | Start height above ground | |||||||
|---|---|---|---|---|---|---|---|---|---|
| 10 m | 500 m | 1000 m | 1500 m | ||||||
| Forward | Today | gif | txt | gif | txt | gif | txt | gif | txt |
| Tomorrow | gif | txt | gif | txt | gif | txt | gif | txt | |
| Backward | Today | gif | txt | gif | txt | gif | txt | gif | txt |
| Tomorrow | gif | txt | gif | txt | gif | txt | gif | txt | |
Disclaimer
Trajectory tutorial
txt - Trajectory endpoints format help
Forecast Details
Forecast trajectories for the Mid-Atlantic region are summarized above. The 36-hour duration backward trajectories originate at 21 GMT (4 pm EST) today and tomorrow at heights of 10 m, 500 m, 1000 m, and 1500 m above model ground level. The 18-hour duration forward trajectories originate at 11 UTC (6 am EST) today and tomorrow at heights of 10 m, 500 m, 1000 m, and 1500 m above model ground level. Model output from the latest 00, 06, 12 or 18 UTC NCEP North American Mesoscale (NAM) model forecast are first used in the trajectory calculation, then, if necessary for the backward trajectories, short-term (up to 12 hours) NAM forecasts from previous run(s) are used. Details on the 40 km NAM gridded data used in these calculations are available HERE. The trajectory endpoints are plotted on maps (gif) and displayed in text files (txt).
The trajectories originate at the following sites:
| latitude | longitude | description |
|---|---|---|
| 39.71 | -77.73 | HGR - Hagerstown, MD |
| 39.71 | -79.01 | Piney Run, MD |
| 39.17 | -76.68 | BWI - Baltimore, MD |
| 38.35 | -76.45 | Solomon's Island, MD |
| 38.31 | -75.12 | OXB - Ocean City, MD |
| 38.85 | -77.03 | DCA - Washington/National, VA |
| 38.55 | -78.45 | - Shenandoah National Park, VA |
| 37.52 | -77.32 | RIC - Richmond, VA |
| 37.32 | -79.97 | ROA - Roanoke, VA |
| 36.90 | -76.19 | ORF - Norfolk, VA |
| 39.67 | -75.60 | ILG - Wilmington, DE |
| 39.13 | -75.47 | DOV - Dover, DE |
| 40.19 | -76.76 | MDT - Harrisburg, PA |
| 39.87 | -75.23 | PHL - Philadelphia, PA |
| 36.48 | -82.40 | TRI - Tri-City (Bristol) TN |