Tropical Storm Ian is tracking NE across Florida early this morning ahead of an upper trough over the Northeast. Low pressure will then linger off the Mid-Atlantic coast later this weekend into early next week as high pressure persists over New England.Īs of 700am EDT Thursday. Meanwhile, Hurricane Ian is forecasted to track off the east coast of Florida later today and then make a second landfall later Friday along the South Carolina coast, before weakening over the Carolinas Saturday. This storm tracker contains data from 1851.Strong high pressure builds from the Great Lakes into New England today through Saturday. Storm Tracker and Model MixerĪ hurricane watcher's guide to the latest track and model forecasts. The Air Quality Index (AQI) translates air quality data into numbers and colors that help people understand when to take action to protect their health. See a map of wildfires since 2017 Air Quality Index (AQI) Forecasts and Current Conditions Wildfire and Smoke Trackerįire data is updated hourly based upon input from incident intelligence sources, GPS data, infrared (IR) imagery from fixed wing and satellite platforms. 30 Drought Monitor and Historyĭata shows the location and intensity of drought across the country. Maximum heat index forecast for next 7 days. Weather Prediction Center forecasts the probability that rainfall will exceed flash flood guidance within 25 miles of a point. For more recent tornadoes, clicking deeper provides more details, damage estimates and whether someone was injured or killed in the storm. This interactive map, which contains data from January 1950, pinpoints where a cyclone touched down and traces its path of destruction. A history of twisters: Tornadoes in Florida since 1950s
Common reasons for a “Not ranked” category are ice-affected flows and gages that only record the stage (elevation) of the flow.Īs storms strike, this interactive map is your guide to impacts and damage reports coming into National Weather Service stations nationwide. The flow category “Not ranked” indicates that a flow category has not been computed. Similarly, the flow category “High” indicates that the estimated streamflow is the highest value ever measured for the day of the year. The flow category “Low” indicates that the estimated streamflow is the lowest value ever measured for the day of the year. For example, a discharge at the 75th percentile is the same as a discharge at the 25th percent exceedance (100-75=25). It is simply obtained by subtracting the percentile scale value from 100 percent. In some hydrological studies, particularly those related to floods, a variation of the percentile known as the "percent exceedance" is used. a percentile less than 25 is considered below normal.a percentile between 25 and 75 is considered normal.a percentile greater than 75 is considered above normal.For example, on the map of daily streamflow conditions a river discharge at the 90th percentile is equal to or greater than 90 percent of the discharge values recorded on this day of the year during all years that measurements have been made. A percentile is a value on a scale of one hundred that indicates the percent of a distribution that is equal to or below it.
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