Note: The GRIB data are posted on our ftp server. WPC QPFs are also available in the following formats: GRIB 2.
National Forecast Charts National High & Low WPC Discussions Surface Analysis Days ½-2½ CONUS Days 3-7 CONUS Days 4-8 Alaska QPF PQPF Excessive Rainfall Mesoscale Precip Discussion Flood Outlook Winter Weather Storm Summaries Heat Index Tropical Products Daily Weather Map GIS Products Current Watches/ Warnings Satellite and Radar Imagery Loop of 6-Hourly QPF for Days 1-7. NEXT ADVISORY TO BE ISSUED BY THE WEATHER PREDICTION CENTER.Tropical Storm Hilary has now arrived in Southern California its soaking rainfall and strong winds push through California and other parts of the West, which could result in catastrophic flash. CONTINUED LIFE-THREATENING AND LOCALLY CATASTROPHIC FLOODING EXPECTED OVER PORTIONS OF THE SOUTHWESTERN U.S. 000 WTPZ34 KNHC 210846 TCPEP4 BULLETIN Post-Tropical Cyclone Hilary Advisory Number 20 NWS National Hurricane Center Miami FL EP092023 200 AM PDT Mon. Uses WPC forecast snow-to-liquid ratio (SLR) when available, or 10:1 SLR. National Forecast Charts National High & Low WPC Discussions Surface Analysis Days ½-2½ CONUS Days 3-7 CONUS Days 4-8 Alaska QPF PQPF Excessive Rainfall Mesoscale Precip Discussion Flood Outlook Winter Weather Storm Summaries Heat Index Tropical Products Daily Weather Map GIS Products Current Watches/ Warnings Satellite and Radar Imagery For each ensemble member, the precipitation falling during each 1-hour period is assumed to be *all snow* if the member indicates that snow comprises at least some of the precipitation at the top of the hour (overestimation can thus occur during mixed precipitation). Tropical Storm Hilary has now arrived in Southern California its soaking rainfall and strong winds push through California and other parts of the West, which could result in catastrophic flash. Tropical Storm Hilary has now arrived in Southern California its soaking rainfall and strong winds push through California and other parts of the West, which could result in catastrophic flash. Gridded FFG is provided by the twelve NWS River Forecast Centers (RFCs) whose service areas cover the lower 48 states. National Forecast Charts National High & Low WPC Discussions Surface Analysis Days ½-2½ CONUS Days 3-7 CONUS Days 4-8 Alaska QPF PQPF Excessive Rainfall Mesoscale Precip Discussion Flood Outlook Winter Weather Storm Summaries Heat Index Tropical Products Daily Weather Map GIS Products Current Watches/ Warnings Satellite and Radar Imagery In the Excessive Rainfall Outlooks, the Weather Prediction Center (WPC) forecasts the probability that rainfall will exceed flash flood guidance within 40 km (25 miles) of a point. 
20, 2023 at 8:26:50 pm EDT Watches, Warnings & Advisories Zoom Out
NWS Forecast Office New York, NY > New York, NY Current Hazards Current Conditions Radar Forecasts Rivers and Lakes Climate and Past Weather Local Programs Click a location below for detailed forecast.
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