DISCUSSION: Middle Spring time – a time of the year in which storms become more prominent. With the growth of smartphone use in everyday life, the enhanced ability to report ongoing weather phenomena continues to provide more power to citizens and meteorologists alike. The Meteorological Phenomena Identification Near the Ground (mPING) network, served up by the National Severe Storms Laboratory (NSSL) in Norman, Oklahoma, allows for people to report ongoing precipitation based on the type of precipitation that is falling. A network such as mPING brings together citizens, forecasters, and researchers alike in that much more can be collected about the instantaneous outdoor environment when precipitation is occurring. Reports can arrive to explain different types of precipitation, but the common goal of a network such as mPING is to bring together crowdsourcing of meteorological phenomena to best improve coverage of observations alongside other precipitation detection platforms.
To understand why a network of weather observation reporting such as mPING is essential, it is important to examine the supplementary benefits it can provide along with other types of observations. Most commonly, doppler radars are used to detect hydrometeors like rain, snow, hail, and graupel at various different angles in the atmosphere ranging from 0.5 to 19.5 degrees above the ground reference. Recent advancements to radar technologies such as dual-polarization gives forecasters plenty more information into the horizontal and vertical size and shape of hydrometeors. However, radars cannot detect surface-level hydrometeors and do not always provide a clear and obvious picture as to whether or not precipitation is actually occurring and if so, what type of precipitation is occurring. This is where storm reports and observations play a role in closing the gap between what is observed on radar and what is actually happening on the ground. This is especially helpful for meteorologists in forecast centers where in many cases, there are no windows to the outside, and thus need to rely on external spotters and common folk to report ongoing precipitation. So how do the reports impact researchers and forecasters? The answer lies in the form of verification of the data. Forecasters and researchers can utilize the data coming into the mPING servers and verify against the observations in order to improve data quality and reliability. In addition, observations near the ground can help to enhance weather forecast models such that observations can give forecasters an insight into whether or not a forecast was good or bad, as well as any improvements that can be made to ensure improved forecast skill. Improved forecast skill is always a plus as it gives forecasters more certainty in predicting future precipitation. Ultimately, the mPING network empowers the everyday citizen to make a difference with each report. More information on mPING can be found at the NSSL website here. To learn more about other interesting weather observation topics from around the world, click here! © 2019 Meteorologist Brian Matilla
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DISCUSSION: There is no question that as atmospheric and climate science entered the 21st century, atmospheric observations took on a whole new meaning with a state-of-the-art approach to how and why things are done. One such example to prove this point is regarding the extent to which the GOES-16 satellite imager blew away the atmospheric and climate science community in terms of its unique ability to observe the most recent powerful coastal storm which caught the attention of the Mid-Atlantic and Northeast coastal regions.
A perfect example of how the GOES-16 satellite imager stunned the entire meteorological world was in the context of this satellite’s ability to view the lightning occurring in association with this most recent coastal storm which rapidly intensified just offshore from the North Carolina coastline. More specifically, as GOES-16 watched the system developed both in the vicinity of the coastline and then just offshore from the North Carolina coastline, there was substantial lightning coverage which expanded within and near the center of the system’s core circulation as well as along the progressing cold front. What was most impressive was the extent of the detail which was provided by the GOES-16 Geostationary Lightning Mapper (GLM) imaging platform. What was most impressive was the fact that during the 120-minute footage clip of the GLM in action, there were even some moments where there appeared to be semi-symmetric lightning bursts in the center of the core circulation. This is a phenomenon which is often found in association with near-perfectly symmetric and very intense (and often mature) tropical cyclones. This finding proved that even though this extra-tropical cyclone developed rapidly just offshore from the U.S. East Coast, it did attain radar-based structure in the context of its precipitation which somewhat resembled a hybrid hurricane. This is a finding which is most common to be seen in association with rapidly intensifying low-pressure systems (i.e., in non-tropical situations) since when extra-tropical cyclones rapidly intensify, they can often take on characteristic appearances resembling low-end intensity tropical cyclones from a precipitation-based standpoint as far as regional Doppler radar observations are concerned. This structural resemblance occurs as a result of such rapidly intensifying systems quickly wrapping up and becoming more tightly-wrapped and more powerful low-pressure systems. Thus, this case and point just goes to show that the atmosphere can produce quite impressive displays when the right conditions and circumstances are in place. To learn more about other interesting weather observation topics from around the world, click here! © 2019 Meteorologist Jordan Rabinowitz |
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