Displays the climatological significance of precipitation forecast by WPC. The climatological significance is represented by Average Recurrence Intervals (ARIs) of precipitation estimates …

Sep 16, 2025 · WPC QPF is also available in the following formats: GRIB 2 Shapefiles KML About These Products Precipitation Verification How accurate are WPC precipitation forecasts? …

May 12, 2022 · The graphics on this page combine WPC forecasts of fronts, isobars and high/low pressure centers with the National Digital Forecast Database (NDFD) depiction of expected …

WPC Top Stories: Explore WPC's experimental Probabilistic Precipitation Portal Understanding WPC's Excessive Rainfall Risk Categories View the Winter Storm Severity Index to see …

5 days ago · WPC QPFs are also available in the following formats: GRIB 2 Note: The GRIB data are posted on our ftp server Shapefiles KML -- (viewable in Google Earth, Microsoft Virtual …

Feb 3, 2025 · The WPC is the official back-up center to the National Hurricane Center (NHC). In this capacity, the WPC is responsible for issuing all tropical cyclone products, including …

Mar 7, 2025 · WPC's Daily Weather MapDownload Weekly Maps About the Daily Weather Map Changes to the Daily Weather Map (effective June 20, 2011) NOAA Central Library's Daily …

3 days ago · at least partially saturated ground across portions of the Southern Appalachians before heavy rainfall ejects into the southern Mid-Atlantic States. Added a Marginal Risk as a …

These heat index products are issued by WPC twice per day at approximately 02Z and 16Z for the valid days 3 through 7. They are based on an ensemble of model and human forecasts.

Sep 14, 2023 · View Surface Analyses for Aviation Interests Current Weather Conditions at WPC NWS Unified Surface Analysis Manual