Severe Thunderstorm Warning Radar – Warning services for severe thunderstorms are given by the Bureau’s Regional Forecasting Centres, which are located in the capital cities of the states and territories.
Forecasters monitor current weather conditions and create warnings by using computer model projections, as well as data from satellite photos, radar displays, lightning detection networks, ground-based observations, and reports from “storm spotters.” It is important to bear in mind that the weather may shift suddenly, therefore it is important to check your local weather forecast and radar (if it is available), and to stay up to current on the newest warnings by checking the Twitter feed, website, and app of the Bureau.
Prepare Yourself! Within and close to the watch region, severe thunderstorms are a distinct possibility. Keep yourself informed and be prepared to take action in the event that a severe thunderstorm watch is issued. In most cases, the monitoring region is rather extensive, including a huge number of counties and sometimes even whole states. Spotters and radar both agree on the severity of the weather that is now occurring. Warnings signal that there is an immediate threat to both life and property.
Find somewhere safe to take cover, like a large structure. Get out of mobile homes as soon as possible since they might topple over in heavy winds. Warnings typically cover a much smaller area (roughly the size of a city or a small county) that may be affected by large hail or damaging wind, as identified by a NWS forecaster on radar or by a trained spotter or law enforcement officer who is monitoring the storm. Warnings are issued when large hail or damaging wind is expected to impact the area.
The National Weather Service issues Severe Weather Warnings whenever there is a possibility of very hazardous or dangerous weather, including but not limited to severe thunderstorms, tropical cyclones, or bushfires. They are issued anytime there is a risk of severe weather developing in a region or if there is a likelihood that severe weather will move into a region.
Find out what you can do to prepare for severe weather before it hits by doing some research beforehand. To maintain one’s safety and reduce the severity of any effects, preparation is essential.
Be Prepared for the Weather: Make it a habit to check the forecast on a regular basis to determine whether or not you are at danger for severe weather.
To remain up to date on watches and warnings for severe thunderstorms in the Norman area, tune into the local news or check out the homepage for the National Weather Service in Norman.
Register your interest in Wichita Falls. CodeRED: A Wichita Falls OEM and NWS emergency notice will most likely be sent to you through a CodeRED message. This is the most reliable method. Please visit the Emergency Alerts website for further details on how to join up and how to ensure that your information is always kept up to date.
Be Aware of What to Do: When a warning for a severe thunderstorm is issued, you should be prepared with a plan for what to do and where to go in your building.
Construct or Restock Your Survival Kit: It is important to have essential supplies to help you live until aid comes. Help may take longer to arrive in the event of widespread calamities.
Make a Communications Plan: Have a plan for your family that includes a location to meet in case of an emergency as well as other pertinent information. Choose a room in your house to use as a refuge, such as the cellar, the basement, or an internal room on the ground floor that does not have any windows.
Put Your Strategy Into Action: Regularly do a severe thunderstorm exercise with your family so that everyone is aware of what to do in the event that a storm with destructive winds or huge hail is coming. When severe thunderstorm warnings are issued, you should make sure that every member of your family is aware that they should go there. If you have the time, don’t forget about the pets.
The first form of thunderstorm is the common one, sometimes known as a single-cell thunderstorm. This particular thunderstorm is distinguished by the production of a single updraft, which is then followed by a downdraft and the dissipation of the thunderstorm within an hour’s time (Doswell 1985).
Severe weather, such as strong winds or hail, may be produced by a regular thunderstorm; nevertheless, tornadoes are very uncommon (although non-supercell tornadoes can occur). When the usual thunderstorm microburst radar signatures are revealed, we shall analyse this sort of thunderstorm later on in the context of a severe thunderstorm.
In conditions that are suitable, weather forecasters are able to foresee a conventional thunderstorm microburst. In meteorology, a supercell is often understood to refer to a thunderstorm that has a sustained spinning updraft (mesocyclone). The supercell thunderstorm is a kind of thunderstorm that lasts for a lengthy period of time (over the course of many hours), and it has unique radar and visual characteristics.
T The distinctive radar reflectivity characteristic frequently referred to as the “hook echo” is shown to be at the junction of the thunderstorm updraft with the rear flank downdraft, and is the ideal zone for violent tornado occurrence. The hook echo is also the location where the mesocyclone will be positioned at the surface, or aloft, in a supercell thunderstorm.
Another form of thunderstorm is the “bow echo” thunderstorm. The term “bow echo” is derived from a very steady state radar signal in the form of a bow. The persistence of the echo is produced by additional updrafts emerging on the leading edge of the bow echo.
The bow echo is also characterised by bookend vortices. One bookend vortex occurs on the north side of the bow echo and includes cyclonic vorticity, while the second bookend vortex is positioned on the south side of the bow echo and has anticyclonic vorticity. Isolated tornadoes may arise in the cyclonic vortex of the bow echo.
The high winds that can occur with the bow echo usually are located in the rear of the centre of the bow and are caused by horizontal buoyancy gradients along the rear edge of the buoyant plume aloft and cold pool near the surface generating horizontal vorticity, and accelerating the flow from rear to front at middle levels.