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Service Description: These graphics indicate the probability (potential) for a location to receive specific thresholds of accumulated snow or ice. Snowfall - shapes represent the probability (slight, moderate, and high) that enclosed areas will receive equal to or greater than a specific threshold accumulation (4", 8" or 12") of snowfall in a 24 hour period. Ice - shapes represent the probability (slight, moderate, and high) that enclosed areas will recieve equal to or greater than 0.25 inch of ice accumulation.
Link to graphical web page and shapefile download: http://www.wpc.ncep.noaa.gov/wwd/winter_wx.shtml
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Questions/Concerns about the service, please contact the IDP-GIS team
Time Information:
This service is not time enabled
WPC Probabilistic Winter Precipitation
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Description: A map showing day 1, day 2, and day 3 probability forecasts of snowfall and freezing rain accumulation in the Continental United States. The Service includes 12 Group Layers consisting of 0 - 24, 24 - 48, and 48 - 72 hour probability forecasts of snowfall accumulation ≥ 4, 8, and 12 inches, as well as 0 - 24, 24 - 48, and 48 - 72 hour probability forecasts of freezing rain accumulation ≥ 0.25 inches. Forecasts are issued from the NCEP WPC Winter Weather Desk (WWD) twice daily at 0900 UTC and 2100 UTC (4am/pm EST or 5am/pm EDT respectively) from Sept. 15 through May 15 and may be updated if warranted by rapidly changing situations. The map will display Shapefiles indicating Slight ( ≥ 10% probability), Moderate (≥ 40% probability), and High (≥ 70% probability) forecasts of Snow and Freezing Rain accumulations.
Copyright Text: NOAA / NWS
Spatial Reference:
GEOGCS["GCS_Sphere_EMEP",DATUM["D_Sphere_EMEP",SPHEROID["Sphere_EMEP",6371200.0,0.0]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]
Single Fused Map Cache: false
Initial Extent:
XMin: -168.4306332453304
YMin: -47.89340322444957
XMax: -43.64164116045391
YMax: 124.17340322455127
Spatial Reference: GEOGCS["GCS_Sphere_EMEP",DATUM["D_Sphere_EMEP",SPHEROID["Sphere_EMEP",6371200.0,0.0]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]
Full Extent:
XMin: -128.79999999969965
YMin: 24.250000000200714
XMax: -62.4299999995996
YMax: 52.61000000000092
Spatial Reference: GEOGCS["GCS_Sphere_EMEP",DATUM["D_Sphere_EMEP",SPHEROID["Sphere_EMEP",6371200.0,0.0]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]
Units: esriDecimalDegrees
Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP
Document Info:
Title: WPC Probabilistic Winter Precipitation
Author:
Comments: These graphics indicate the probability (potential) for a location to receive specific thresholds of accumulated snow or ice. Snowfall - shapes represent the probability (slight, moderate, and high) that enclosed areas will receive equal to or greater than a specific threshold accumulation (4", 8" or 12") of snowfall in a 24 hour period. Ice - shapes represent the probability (slight, moderate, and high) that enclosed areas will recieve equal to or greater than 0.25 inch of ice accumulation.
Subject: A map showing day 1, day 2, and day 3 probability forecasts of snowfall and freezing rain accumulation in the Continental United States
Category:
Keywords: Snow,winter,weather,ice,freezing rain,snowfall
AntialiasingMode: None
TextAntialiasingMode: Force
Supports Dynamic Layers: false
MaxRecordCount: 1000
MaxImageHeight: 4096
MaxImageWidth: 4096
Supported Query Formats: JSON, AMF, geoJSON
Min Scale: 0
Max Scale: 0
Supports Datum Transformation: true
Child Resources:
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Supported Operations:
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