Current Deep Thunder Forecast for New York
Clouds, Visibility and Winds at 16 km between Data Points
Description
This animation is a visualization of the Deep Thunder forecast
for the lowest-resolution nest at 16 km resolution focused on New York
City. Each time step corresponds to one hour of forecast time.
The specific data shown are for potential use for aviation applications.
A brown, translucent, three-dimensional surface is shown in vertical pressure
coordinates, which corresponds to a boundary where the derived visibility
is 10 km. This visibility is based upon extinction properties of
cloud water, ice and precipitation (i.e., Stoelinga-Warner, 1999).
This isosurface is not a cloud boundary. Thus, the volume inside
the surface represents relatively clear air, that is, visibility over 10
km. If no surface is visible then there are no clouds predicted at
that time step, and thus, the visibility is high.
At the bottom of the scene is a set of colored contours, typically in
increments of 2 km, corresponding to the height in meters of the forecasted
cloud base as shown in the color legend to the lower right. Areas
in gray imply no cloud data. The cloud base contours are overlaid
with maps of coastlines in black, state and national boundaries in white
and rivers in blue.
The volume is marked at four locations with set of colored poles.
These locations correspond to major airports (1 = DCA, 2 = PHL, 3 = LGA,
4 = BOS). The poles are color contoured by visibility using the color
legend to the lower left. If the poles are not visible, then there
are no clouds forecast data along that vertical profile, and thus, the
visibility is very good. At each of 21 pressure levels, the horizontal
wind is shown via arrows. The arrows are colored by horizontal wind
speed following the legend to the upper left. The arrow length also
corresponds to speed.
Instructions
An animation as a set of individual JPEG images is shown above with
one hour of forecast time between each frame. Depending on your connection
speed and that of your computer, the animation may take a few minutes to
load and decompress in your browser. When it is completed, the animation
will play. There are VCR-like controls under the animation to enable
you to stop playback, play forward or backward, or step through the frames
one at a time, control the speed of playback, etc. If you are having
problems viewing or interacting with this animation, make sure your browser
has Javascript enabled.
If the forecast information presented on this page does not seem to
be current and you have visited this site recently, the results of the
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you should manually clear the cache and reload the page.
More Visualizations of the
Current Forecast
Learn More about These Forecasts
Recent High-Resolution Local
Satellite Observations
Learn
More about Deep Thunder
Learn
More about how Deep Thunder Visualizes the Data Generated by the
Weather Model
Current Weather
Information and Predictions for New York City (from the National Weather
Service)
Current Model Results from the
National Weather Service
Recent High-Resolution Local Radar Observations
Evaluation of Recent Forecasts
