This operational server maintains a current database of meteorological and hydrological data, historical data, and written information generated by the NWS or received from other official sources. In addition, this server accesses in realtime a selection of current official weather observations, forecasts, and warnings from U.S. government sources for use by the national and international community. In an effort to enhance the science, experimental products may be accessible on this server and care must be taken when using such products as they are intended for research use.
This server is available 24 hours a day, seven days a week . Timely delivery of data and products from this server through the Internet is not guaranteed. Official NWS dissemination systems which can provide timely delivery of data and products are listed below.
The information on National Weather Service (NWS) Web pages are in the public domain, unless specifically noted otherwise, and may be used without charge for any lawful purpose so long as you do not: 1) claim it is your own (e.g., by claiming copyright for NWS information -- see below), 2) use it in a manner that implies an endorsement or affiliation with NOAA/NWS, or 3) modify its content and then present it as official government material. You also cannot present information of your own in a way that makes it appear to be official government information.
Use of the NWS name ("National Weather Service") and/or visual identifier are protected under trademark law and may not be used without permission from the NWS. Use of the NWS name and/ or visual identifier to identify unaltered NWS content or links to NWS web sites are allowable uses. Permission may be requested for this use at https://www.weather.gov/logorequest. Permission is not required to display unaltered NWS products which include the NWS name or NWS/NOAA visual identifier as part of the original product. Neither the name nor visual identifier may be used, however, in a manner that implies an endorsement or affiliation with NOAA/NWS.
Before using information obtained from any NWS Web page special attention should be given to the date and time of the data and products being displayed.
The user assumes the entire risk related to its use of information on NWS Web pages. NWS is provides such information "as is," and NWS disclaims any and all warranties, whether express or implied, including (without limitation) any implied warranties of merchantability or fitness for a particular purpose. In no event will NWS be liable to you or to any third party for any direct, indirect, incidental, consequential, special or exemplary damages or lost profit resulting from any use or misuse of this data.
As required by 17 U.S.C. § 403, third parties producing copyrighted works consisting predominantly of the material appearing in NWS Web pages must provide notice with such work(s) identifying the NWS material incorporated and stating that such material is not subject to copyright protection.
Below are guidelines for the use of NWS websites:
Sometimes the National Weather Service determines that a particular user is not following these guidelines and is impacting our service delivery capability. This is rarely malicious, however to protect our resources and our service level to the greater user community we may find it necessary to block IP addresses or query types.
Users who find that their queries are blocked should send an email to firstname.lastname@example.org. Our IT professionals are happy to work with you to restore your service within the recommended guidelines.
Third-party information and imagery are used under license by the individual third-party provider. This third-party information may contain trade names, trademarks, service marks, logos, domain names, and other distinctive brand features to identify the source of the information. This does not imply an endorsement of the third-party data/products or their provider by NOAA/National Weather Service. Please contact the third-party provider for information on your rights to further use these data/products.
We recognize that our users may have various Internet Browsers and Operating Systems. We like our visitors to have the best possible experience on the web when using our Site. However, we do recognize that it is impossible to develop applications that work identically, efficiently and effectively on all web browsers.
The National Weather Service website supports Microsoft® Internet Explorer 10+, Mozilla Firefox 29+, Chrome 34+ and any other modern web browser compatible with HTML5 and CSS3.
January 12, 2016: Microsoft has ended support for Internet Explorer browsers older than IE 11.
Mobile Devices and Tablets
This site supports browsing from a Mobile or Tablet device. Content is sized and displayed based on the screen resolution and other display attributes of your device. Content is served formatted specifically for these devices.
Any reference from NWS Web server service to any non-government entity, product, service or information does not constitute an endorsement or recommendation by the National Oceanic Atmospheric Administration or any of its' field offices or employees. We are not responsible for the contents of any "off-site" web pages referenced from NWS servers.
Google Maps and Google Earth map information and photographic imagery are used under license by Google. Esri ArcGIS Online map information and photographic imagery are used under license by Esri. NOAA/National Weather Service data presented using Google Earth, Google Maps, or Esri ArcGIS Online map services are in the public domain and are also made available in open geospatial standard formats such as KML/KMZ (Google) and shapefile (Esri) among other common formats from NOAA/NWS websites. The map information and photographic imagery contain trade names, trademarks, service marks, logos, domain names, and other distinctive brand features. This does not imply an endorsement of Google, Google Earth, Google Maps, or Esri ArcGIS Online mapping products or services by NOAA/National Weather Service. Under the terms of the license, you are permitted to copy or use the Google Earth, Google Maps and/or the Esri ArcGIS Online images on your site so long as the Google Earth, Google Maps and/or Esri trade names, trademarks, service marks, logos, domain names, and other distinctive brand features are not deleted or in any manner altered.
A number of social media/Web 2.0 tools and services used by NWS offices allow the public to post or otherwise contribute to the site. While we value your participation in these forums, whether hosted by the government or by third party services, please keep in mind that we expect conversations to follow the conventions of polite discourse. Therefore, we won't allow comments that:
Posts that violate any of the NWS comment policy will be removed immediately. Failure to comply with NWS comment policy may result in a possible bar to your participation, or a complaint to the service provider that your account has violated Terms of Service agreements