![]() KCCI NewsChannel 8 is the most-watched station in Central Iowa. Follow us on Twitter Follow us on Facebook Follow us on YouTube MEG RSS Feed CURRENT HAZARDS Briefing Page Outlooks Submit a Storm Report. Memphis, TN - Loop: Columbus, MS - Loop: Regional - Loop: National - Loop. Bright reflectivity returns that are stationary and appear during both calm and inclement weather are usually land-based obstructions such as mountains, trees, or especially wind farms (nothing gets electromagnetic signals confused like spinning metal blades!). Live radar - storms arriving in Des Moines metro right now. Memphis, TN: Columbus, MS: Regional: National.This is helpful for picking out snow/mix/rain transition zones In all snow situations, dBZ values of 40 indicate 3-4”/hr snowfall rates and whiteout conditions. Anything larger than this is usually due to “bright banding” where the radar is seeing the part of the atmosphere where snowflakes are clumping together and melting into raindrops. Some additional tools are now in use by the National Weather Service staff at the Des Moines Weather Office. In cold climates during the winter months, actual dBZ values rarely exceed 40. New Radar Tools for the Des Moines WSR-88D Radar Septemby NWS Des Moines It has been an exciting year in the National Weather Service with some new advances in radar operations technology. ![]() This is your standard radar data that shows precip or other solid/liquid particles in the atmosphere. The first type of data currently available is reflectivity. We currently have two types of radar data available with plans to add more soon. Use radar data with caution especially if your area of interest is far from the nearest radar location! A lot can happen between 0 and 5,000 feet and therefore the depiction of precipitation given by radar may differ some from what’s actually happening on the ground. Because of this phenomenon, the radar beam will only see precipitation falling through the mid levels of the atmosphere. 1325 East West Highway, Silver Spring, MD 20910 The NWS Radar site displays the radar on a map along with forecast and alerts. See a real view of Earth from space, providing a detailed view of. To see this in action, imagine a circle (earth) with a straight line emanating from some point on the circle if you continue this line out into space, it will gradually get farther and farther from the circle. Current and future radar maps for assessing areas of precipitation, type, and intensity. Because the earth is round and the radar beam is flat, the farther away from the radar tower the beam (energy) travels, the farther removed from the ground becomes. There is a notable constraint to radar data though. This is the highest resolution radar data available which enables you to see features such as sea breeze or outflow boundaries that standard resolution radar entirely misses. This data is gathered from over a hundred radar towers located across the US. Lake Murray, Ardmore OK (WeatherOK, USA).Lightning CG worldwide (since 2004) Plus.Base reflectivity (with archive since 1991).Radar & Lightning Radar & Lightning Radar.Forecast Ensemble Heatmaps (Up to 7 models, multiple runs, graph up to 46 days) Plus.Forecast Ensemble (Up to 7 models, multiple runs, graph up to 46 days).Forecast XL (Graph and table up to 10 days - choose your model).14 day forecast (ECMWF-IFS/EPS, graphs with ranges).Meteograms (Graph 3-5 days - choose your model).Weather overview (Next hours and days, 14 day forecast).Europa Finnish HD HARMONIE (3 days) new.Tropical cyclone tracks (ECMWF/Ensemble).Visit The Weather Channel for more information on Iowa weather. It has been an exciting year in the National Weather Service with some new advances in radar operations technology. By moving to basements or protected areas of buildings away from windows, people are generally able to avoid injury if a tornado develops. The Weather Service then sounds sirens and issues warnings on radio and TV so people can seek shelter. Part of the reason for this is that the Weather Service is able to predict when tornadoes are most likely to occur. ![]() Tornadoes may develop in the spring, but most Iowans have never seen one. In the summer, sandals, shorts and t-shirts are the norm.Īnother dramatic form of weather that Iowans occasionally experience is tornadoes. Remember this as you choose what clothes to bring! In the winter, warm hats, scarves, mittens and boots are essential and people “layer” their clothes for maximum insulation. ![]() Temperatures range from -26C to 37C. As the chart below from the National Weather Service shows, temperatures are hot in July and August cold in January and February. The climate in Iowa changes dramatically during different times of the year. It is the variability and occasional severity of the weather that makes it such a popular topic of conversation. You will probably notice that Iowans love to talk about the weather! Though it can rain at any time of the year, the rainiest months are in the spring.
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