Powerful Nor'easter To Wallop Parts Of The Northeast and New England
A powerful Nor'easter and winter storm is expected to wallop eastern parts of the Northeast and New England this weekend. Plenty of hazards are expected to impact the Northeastern U.S. from heavy snow, with significant accumulations expected, to high winds and coastal issues. The combination of the intense snow and strong winds will result in blizzard conditions, especially along coastal areas.
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The gridded precipitable water plots (above) were created for the maximum, 99th percentile, 75th percentile, 50th percentile, and +2SD values. A separate GIS point shapefile was created for each of these categories, based on the latitude/longitude values of the sounding locations for each month. The point shapefiles were then interpolated to the gridded raster format using the following specifications:
a) Kriging interpolation method
b) Semivariogram: Circular
c) Number of points: 6
d) Grid resolution: 0.1 degrees
Due to increasing uncertainty in interpolated data at increasing distances from the point data source, caution should be used when taking a value from the precipitable water maps. Because of this, the border of the continentual Unites States was used to clip the completed grids.
The data on these plots has changed since the original plots were produced in 2011. This is due to a change in the interpolation method (to a geostatistical technique) as well as the additional of 3 more years of sounding data.
The data on these plots has changed since the original plots were produced in 2011. This is due to a change in the interpolation method (to a geostatistical technique) as well as the addition of 3 more years of sounding data.