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Forecast Trajectory Maps for the Northeast United States

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Updated on Fri Dec 15 08:58:14 UTC 2017


HYSPLIT Forecast Trajectories
DirectionStart DayStart height above ground
10 m 500 m 1000 m 1500 m
Forward Today gif kml txt gif kml txt gif kml txt gif kml txt
Tomorrow gif kml txt gif kml txt gif kml txt gif kml txt
Backward Today gif kml txt gif kml txt gif kml txt gif kml txt
Tomorrow gif kml txt gif kml txt gif kml txt gif kml txt

txt - Trajectory endpoints format help

Forecast Details

Forecast trajectories for the Northeast U.S. and vicinity are summarized above. The 36-h duration backward trajectories begin at 21 UTC (4 pm EST) today and tomorrow at heights of 10m, 500 m, 1000 m, and 1500 m above model ground level. The 18-h duration forward trajectories begin at 11 UTC (6 am EST) today and tomorrow at heights of 10 m, 500 m, 1000 m, and 1000 m above model ground level. The trajectories are computed using meteorological fields output from the NOAA National Centers for Environmental Prediction (NCEP) North American Mesoscale (NAM) forecast model. Model output from the latest 00, 06, 12, or 18 UTC NAM 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 12 km NAM gridded data used in these calculations are available in the meteorological forecast data web page. Maps do not give the NAM model forecast initialization time if only short-term forecasts are used in the calculations. Trajectories in different states or provinces are shown in different colors (except for kml output). The trajectory endpoints are plotted on maps (gif & kml) and displayed in text files (txt).

The backward trajectories originate at the following sites:

latitudelongitudedescription
41.31-72.92New Haven, CT
42.40-71.03Chelsea, MA
41.64-70.88Fairhaven, MA
42.30-72.33Ware, MA
39.00-77.00central MD
44.38-68.26Acadia NP, ME
46.61-68.41Ashland, ME
43.56-70.21Cape Elizabeth, ME
44.23-69.79Gardiner, ME
44.87-66.96Campobello, NB, Canada
43.98-71.13Conway, NH
39.67-74.86Ancora, NJ
40.67-74.13Bayonne, NJ
42.14-74.51Belleayre, NY
42.73-75.79Camp Georgetown, NY
43.22-78.48Middleport, NY
44.09-75.97Perch River, NY
42.29-79.60Westfield, NY
41.00-80.00western PA
41.00-78.00central PA
40.00-76.00eastern PA
44.53-72.87Underhill, VT

The forward trajectories originate at the following sites:

latitudelongitudedescription
41.73-72.65 HFD - Hartford-Brainard Airport, CT
42.37-71.02 BOS - Boston / Logan Intl., MA
39.17-76.68 BWI - Baltimore / Washington Intl., MD
41.42-81.87 CLE - Cleveland Hopkins Intl., OH
42.23-83.33 DTW - Detroit Metro Wayne Co., MI
42.75-73.80 ALB - Albany County Airport, NY
42.93-78.73 BUF - Greater Buffalo Intl. Airport, NY
40.78-73.88 LGA - New York / La Guardia, NY
43.12-77.67 ROC - Greater Rochester Intl. Airport, NY
43.12-76.12 SYR - Syracuse Hancock Intl. Airport, NY
39.87-75.23 PHL - Philadelphia Intl., PA
40.50-80.27 PIT - Pittsburgh Intl., PA
41.73-71.43 PVD - Providence, Green State Airport, RI
43.67-79.63 YYZ - Toronto / Pearson Intl., ON
Modified: June 15, 2010
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