Weather radars send out pulses of microwave energy and listen between the transmitted pulses for part of that the energy to be reflected back to the radar. Raindrops and snow produce reflections that become stronger as the size of the drop or flake increases. The unit of radar reflectivity is dbz.
High values of dbz color scale to the right of the image indicate large drops and heavy precipitation.
Our loop shows the signals recorded by several radars in the northwest over the last several hours. The coverage of the Pacific Northwest by weather radar is by no means uniform. The beam can be blocked by mountains, and some areas are simply too far away from any radar. So, rain will occur in some places such as the western side of the Olympic Mountains without it showing up on our loop. Weather radars can also pick up returns from nearby objects on the ground ground clutter and flying insects.
Skip to main content Skip to footer compile ffmpeg ubuntu links. University of Washington. Department of Atmospheric Sciences. Current Weather. Single Step. Loop Length. Interpreting Radar Images Weather radars send out pulses of microwave energy and listen between the transmitted pulses for part of that the energy to be reflected back to the radar.National Weather Service. Forecast Loading Click map for forecast.
NOAA Doppler Radar Mosaic Imagery
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Tropical Weather. High Seas Warning. Offshore Waters. S Arctic Hawaii. Navtex Navigational Telex. Forecaster Reasoning. Full Forecast. Full Observation. Choose layer type:. Forecast Observed. Warning Legend. Forecast Graphics. For any location in the contenantal U. Weather observations are continuously updated, so all observations are the most recent Is there a stand alone NWS app for the IPhone, Android etc.?I love NOAA weather. This app is so easy to use and the fact that you can see the weather coming towards your state.
You can view anywhere in the USA. The maps, which are most important for my area of the country, are not kept up to date. I'm uninstalling the app. A great companion to the weather charts in the "Prediction Mini Center". Would give it 5 stars if the settings would allow me to define which "home" sector or station I'd like the app to open on I wanted a weather radar app that didn't bug me for ads etc. Yesterday, it worked fine, but today it is still showing me yesterday's feeds. I like the data sources, nice, straight data that loads immediately.
The interface could be organized a little bit better but it is not too difficult to use. This radar does NOT update while I am viewing it. I have to log off then log back on to get it to update. That is totally unacceptable when I am trying to track severe storms. Fix this app. UpdateIt's been several months sense my review and you still have not fixed this app. Come on NOAA get your butt in motion and use some of the money you're getting and fix this app. People are depending on it.
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See System Requirements. Available on PC. Show More. People also like. Hurricane and Tropical Storm Report Rated 3. Earthquakes Rated 3. Earthquake Scan Rated 4 out of 5 stars. Earthquake Rated 3. Space Station Finder Rated 3 out of 5 stars. ATC Navigator Rated 3. ISS Tracker Rated 4.Geocolor is a multispectral product composed of True Color using a simulated green component during the daytime, and an Infrared product that uses bands 7 and 13 at night.
During the day, the imagery looks approximately as it would appear when viewed with human eyes from space. At night, the blue colors represent liquid water clouds such as fog and stratus, while gray to white indicate higher ice clouds, and the city lights come from a static database that was derived from the VIIRS Day Night Band.
This image is taken in the infrared band of light and show relative warmth of objects. Colder objects are brighter and warmer objects are darker. Lower layers of clouds, generally warmer and lower in altitude, are colored gray. Colder and generally higher clouds tops are highlighted in colors.
Infrared imagery is useful for determining cloud features both at day and night. This image is taken in visible light, or how the human eye would see from the satellite.
Sunrise and set can be tracked in this image. This image is taken using a wavelength sensitive to the content of water vapor in the atmosphere. Black and brown areas indicate little or no moisture present. Water vapor imagery is useful for both determining locations of moisture and atmospheric circulations.
Red and yellow areas indicate little or no moisture present.
Lightning can heat the air to 50, degrees Fahrenheit — about 5 times hotter than the surface of the sun! A mere 6 inches of fast-moving flood water can knock over an adult. It takes just 12 inches of rushing water to carry away a small car, while 2 feet of rushing water can carry away most vehicles. Show me another fact. Share This. Share to Twitter Share to Facebook Share by email. Each year, the United States averages some 10, thunderstorms, 5, floods, 1, tornadoes and 2 Atlantic hurricanes, as well as widespread droughts and wildfires.
About one-third of the U. National Weather Service NWS provides weather, hydrologic, and climate forecasts and warnings for the United States, its territories, adjacent waters and ocean areas, for the protection of life and property and the enhancement of the national economy. Environmental Modeling. Lightning safety expert. Decision Support Manager. How are we doing? Feedback opens in new window.Thanks to everyone for making MyRadar so successful, with over 50 million downloads!
MyRadar is a fast, powerful, easy-to-use weather app that displays animated weather radar around your current location and to quickly show what weather is coming your way. Just start the app; your location pops up with animated live radar, with radar loop lengths of up to two hours. This basic functionality provides the quickest way to get a snapshot of the weather on-the-go, and it's what has made MyRadar so successful over the years.
Check your phone and get an instant assessment of the weather that will impact your day. One of the most useful features in MyRadar is the ability to provide advanced rain alerts; our patent-pending process for predicting hyper-local rainfall is the most accurate in the industry. Instead of having to check the app all the time, MyRadar will send you an alert up to an hour in advance as to when the rain will arrive at your current location, down to the minute, including details on intensity and duration.
These alerts can be a life saver when you're on-the-go and don't always have time to check the weather - our systems will proactively do the work for you and let you know in advance before the rain hits.
In addition to the live radar, MyRadar has an ever-increasing list of weather and environmentally-related data layers that you can overlay on top of the map; our animated winds layer shows a breathtaking visual representation of both surface winds and winds at the jetstream level; the frontal boundaries layer shows high and low pressure systems as well as frontal boundaries themselves; the earthquakes layer is a great way to stay on top of the latest reports on seismic activity, completely customizable as to severity and time; our hurricane layer allows users to stay on top of the latest tropical storm and hurricane activity throughout the world; the aviation layer overlays AIRMETs, SIGMETs and other aviation-related data, including the ability to track flights and display their IFR flight plans and paths, and the "wildfires" layer allows users to stay abreast of the latest fire activity around the United States.
MyRadar also has the ability to send weather and environmental alerts, including alerts from the National Weather Service, such as Tornado and Severe Weather alerts. A new feature introduced in this version of MyRadar includes the ability to receive alerts based off of Tropical Storm and Hurricane activity; you can configure the app to send you an alert any time a tropical storm or hurricane forms, or is upgraded or downgraded. In addition to the free features of the app, additional upgrades are available, including real-time hurricane tracking - great for the start of hurricane season.
Doppler Radar National Mosaic
The premium upgrades also include the professional radar pack, which allows greater detail of radar from individual stations. Users can select individual radar stations around the US, select the radar tilt angle, and also change the radar product being displayed, including base reflectivity and wind velocity - great for experienced weather buffs looks to stay on top of possible tornado formation. Download MyRadar today and try it out!
The forecast 'lock' feature is now available on iPad! We often forget to be thankful for the things we actually have, and most importantly to those that work hard behind the scenes to make those good things possible. I truly appreciate all the work that goes into making, improving and maintaining this program. There are some that would say is not perfect for this or the other reason, but perfection is hardly ever achieved in life, and the definition of perfection is usually in the eye of the beholder.
For me, living in an area of the country with sudden, often unpredictable and dangerous weather as in thunderstorms and tornadoes I can say your program has kept me and my family out of harms way many times. Perhaps not in some users minds. So once more, thank you for all you do. I appreciate your help in keeping me and my family safe from the elements. When we were traveling and hit bad weather it was a worthless app. It started draining my battery, freezing, unavailable data, crashing.
No this one is horrible compared to the one he uses. Idk why so many different NOAA apps are available but lessons learned they are not all equal. Hey there; you definitely shouldn't be getting an old radar loop, our radar is among the most real-time out there based on the way we process the stream of radar data.Account Options Sign in. Top charts.NWS Chicago: Using Radar and Issuing Warnings
New releases. Add to Wishlist. Real-time animated weather radar images on a highly interactive map enhanced with severe weather warnings provide accurate weather forecasts that will prevent bad weather from taking you by surprise. The app reflects accurate real-time weather conditions and provides you with the detailed meteo information you need to know: current and "Feels Like" temperature, the chance of precipitation and humidity info, wind speed and wind direction, pressure changes and more.
Customize your weather report according to your taste — choose the information you would like to receive! Take a look at current weather conditions or take the most of the top-notch functionality of the weather radar. Get a push notification whenever an alert is issued tornadoes, flood warnings, snow storms, and more without opening the app!
Real-time animated meteo radar on a highly interactive terrain or satellite map enhanced with severe weather warnings and alerts will meet the needs of even the most demanding users. Short-term hour and long-term 7-day accurate weather forecast for any location. Weather icons will let you know what the local temperature is throughout the world.
Tap on them to get more details. More handy options for the best user experience! National Weather Service watches and warnings are shown on the map as interactive warning boxes highlighting the territories they're active for.
Tap any to get the card with the full alert text. Precipitation Forecast, satellite images, and detailed weather info are available worldwide.
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