National Forecast Charts Weather Prediction Center

$( document ).ready(function() { $('.feature').hide(); $('.one-third-first').show(); $('.one-third-first img').css({ 'width': '935px' }); $('.one-third-first img').css('border', '0px'); /* vote.gov */ //$( ".div-half" ).eq(0).append( '<br><a href="https://vote.gov">Vote.gov</a>' ); /* Addition of button on top/left hand part of weather.gov is... //$( "div.five-sixth-last" ).append('**<em>Our web pages are undergoing maintenance, which may result in the display of old data. This message will be removed once maintenance is complete.</em>'); const divs = document.querySelectorAll('.full-width-first.communication-links .one-sixth-first.divs'); // If there are at least 3, insert after the third if (divs.length >= 3) { divs[2].insertAdjacentHTML('afterend', ` <div class="one-sixth-first... High Resolution Version | Previous Days Weather Maps Animated Forecast Maps | Alaska Maps | Pacific Islands Map Ocean Maps | Legend | About These Maps Alaska | Hawaii | Guam | Puerto Rico/Virgin Islands More from the National Digital Forecast Database Short range forecast products depicting pressure patterns, circulation centers and fronts, and types and extent of precipitation.

Medium range forecast products depicting pressure patterns and circulation centers and fronts View current conditions and short- to medium-range (1-7 days) forecasts for precipitation, temperature, wind, and clouds. These forecasts often identify potential hazards such as heavy precipitation three or more days in advance. Visualizes the probability of high rain rates that may lead to flash flooding over the next several days at over 60 major U.S. cities. Interface for specialized WPC Excessive Rainfall Outlook Maps for NWS County Warning Areas and States.

Custom plots of Local Storm Reports across the Contiguous United States. Reports include rain, snow, ice, and severe weather, as well as other significant information from storm spotters. Displays the climatological significance of precipitation forecast by WPC. The climatological significance is represented by Average Recurrence Intervals (ARIs) of precipitation estimates from NOAA Atlas-14 and Atlas2. An interactive situational awareness table that displays anomalies, percentiles, and return intervals from the GEFS, NAEFS, and ECMWF Ensembles (login required to view ECMWF data). ACTIVE ALERTS Warnings By State Excessive Rainfall and Winter Weather Forecasts River Flooding Latest Warnings Thunderstorm/Tornado Outlook Hurricanes Fire Weather Outlooks UV Alerts Drought Space Weather NOAA Weather Radio NWS CAP Feeds

PAST WEATHER Climate Monitoring Past Weather Monthly Temps Records Astronomical Data Certified Weather Data CURRENT CONDITIONS Radar Climate Monitoring River Levels Observed Precipitation Surface Weather Upper Air Marine and Buoy Reports Snow Cover Satellite Space Weather International Observations FORECAST Local Forecast International Forecasts Severe Weather Current Outlook Maps Drought Fire Weather Fronts/Precipitation Maps Current Graphical Forecast Maps Rivers Marine Offshore and High Seas Hurricanes Aviation Weather Climatic Outlook INFORMATION CENTER Space Weather Daily Briefing Marine Climate Fire Weather Aviation Forecast Models Water GIS Cooperative Observers Storm Spotters Tsunami Warning System National Water Center International Weather The Weather Prediction Center (WPC), located in College Park, Maryland, is one of nine service centers under the umbrella of the National Centers for Environmental Prediction (NCEP), a part of the National Weather Service... government.

Until March 5, 2013, the Weather Prediction Center was known as the Hydrometeorological Prediction Center (HPC). The Weather Prediction Center serves as a center for quantitative precipitation forecasting, medium range forecasting (three to eight days), and the interpretation of numerical weather prediction computer models. The Weather Prediction Center issues storm summaries on storm systems bringing significant rainfall and snowfall to portions of the United States. They also forecast precipitation amounts for the lower 48 United States for systems expected to impact the country over the next seven days. Advisories are also issued for tropical cyclones which have moved inland, weakened to tropical depression strength, and are no longer the responsibility of the National Hurricane Center. The Weather Prediction Center also acts as the backup office to the National Hurricane Center in the event of a complete communications failure.

Long range climatological forecasts are produced by the Climate Prediction Center (CPC), a branch of the National Weather Service. These include 8–14 day outlooks, monthly outlooks, and seasonal outlooks. From the early days of organized weather collection in the United States, a central facility was used to gather and disseminate data. Originally, this task occupied[when?] a single room within the United States Army Signal Service in Washington, D.C. Reports were collected via telegraph and general forecasts were made for the country.[citation needed][1] While WPC's roots lie deep in the past,[when?] the organization can be most directly traced to the formation of the Analysis Center by Circular Letter 39-42, signed by Weather Bureau director Francis W.

Reichelderfer on March 5, 1942.[2][3] Operations began on March 16, 1942, with the unit collocated with the Weather Bureau Central Office at 24th and M Streets NW in Washington, D.C.[4] Initially the unit was... Mouse over or click on the times below to change the above graphic. Max/Min Temp: if (current_time < 12) { if (new Date().getHours() < 12) { document.write(` |&nbsp;<a href="#" onMouseOver="document.the_image.src = cwms_url + '&sector=CONUS&element=mint&n=1'">Tonight</a>&nbsp; |&nbsp;<a href="#" onMouseOver="document.the_image.src = cwms_url + '&sector=CONUS&element=maxt&n=1'">${days[0].slice(0,3)}</a>&nbsp; |&nbsp;<a href="#" onMouseOver="document.the_image.src = cwms_url +... US Dept of Commerce NOAA/NWS/NCEP Weather Prediction Center 5830 University Research Court College Park, MD 20740 Weather Prediction Center Web Team US Dept of Commerce NOAA/NWS/NCEP Weather Prediction Center 5830 University Research Court College Park, MD 20740 Weather Prediction Center Web Team A strong atmospheric river will continue heavy rain over southern California through Friday.

The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More > $( document ).ready(function() { $('.feature').hide(); $('.one-third-first').show(); $('.one-third-first img').css({ 'width': '935px' }); $('.one-third-first img').css('border', '0px'); /* vote.gov */ //$( ".div-half" ).eq(0).append( '<br><a href="https://vote.gov">Vote.gov</a>' ); /* Addition of button on top/left hand part of weather.gov is...

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