That is the length of the longest lightning ever measured. The thunder is caused by the sudden expansion of the air in the immediate surroundings of the lightning – it can reach temperatures of up to 30,000 degrees Celsius and is only a few centimeters thick! This discharge can occur both by a lightning strike to the ground or to another cloud. The friction of the water molecules in the cloud creates a high electrical voltage, which is balanced by the discharge of a lightning bolt. The driving engines for a thunderstorm are high solar radiation, water evaporation, and the resulting formation of a cloud (more on cloud formation here). This allows you to locate lightning “live” and in “real-time” yourself. Due to the different arrival times (in the range of milliseconds) of the electromagnetic wave, precise conclusions can be drawn about the impact location and the strength of the lightning. This wave arrives at different radar stations at the speed of light. The measuring technique of the lightning radar makes the decisive contribution here: Each lightning/lightning strike emits an electromagnetic wave that propagates over hundreds of kilometers. The great advantage of our lightning strike map is that thunderstorms and lightning are displayed with a very short delay. Here is what you need to know about thunderstorms and the lightning radar! This way you can see exactly how the thunderstorm has developed over the last hours and minutes and infer where the thunderstorm will move on to. To display the temporal course and direction of the lightning front, simply click on the cursor symbol. Each of these flashes signals a single lightning strike. On the lightning map, you can also see small flashes of lightning, which are indicated by a short, white flash. Blue or green color indicates a relatively weak thunderstorm or weak precipitation.Ĭaution is advised in case of yellow, orange, red, and especially purple coloring:Ī lightning front of this type involves a clear risk of severe weather. The strength of the thunderstorm is measured with the help of precipitation as also with our storm radar. The lightning map shows you current thunderstorms in color. Tracking the current lightning front – How to read the lightning map: Depending on the strength, the precipitation is displayed in blue (weak precipitation), green, yellow, orange (moderate precipitation), red, or purple (very heavy precipitation). If you would like to obtain information about a CAL FIRE fire burning in your area that is not included on this web site, please contact the CAL FIRE Unit that services your county.Thunderstorms and lightning strikes are indicated by a lightning symbol. However, the majority of those fires are contained quickly and no information will generally be provided on these incidents at this site if the fire burns less than 10 acres. Fires occur throughout the State within CAL FIRE jurisdiction on a daily basis during fire season. If you live in a wildland area always have an evacuation plan in place. Please refer to the fire information phone numbers provided on this site, and website links for additional information, and monitor your local radio stations for emergency broadcasts. The sites are not meant to provide up-to-the-minute evacuation or fire behavior information. Please use the information on these pages only as a reference. As battling a fire, or handling any other disaster is the priority, updates to these sites cannot be guaranteed on a set time schedule. All of our information comes from the firelines and must be approved by the Incident Commander in charge of managing the incident prior to release. This site provides general information concerning an incident. We make every effort to provide accurate and complete information, however the data is subject to review and change. Information presented on the departments website is a representation of the existing wildfire situation, based on the information readily available to CAL FIRE.
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