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3 days ago · Severe thunderstorms are possible this afternoon and evening across portions of the Midwest, central High Plains, lower Great Lakes, and Arizona. The greatest potential for severe gusts is over eastern Iowa into Illinois and Indiana. For additional details, see the latest Day 1 Convective Outlook.
Valid: Thu 07/18 1200Z - Tue 07/23 1200Z. Note: A severe weather area depicted in the Day 4-8 period indicates a 15%, 30% or higher probability for severe thunderstorms (e.g. a 15%, 30% chance that a severe thunderstorm will occur within 25 miles of any point).
May 25, 2024 · This is today's forecast for organized severe thunderstorms over the contiguous United States. Please read the description of the risk categories for further information. You may find the latest Day 1 Outlook available as well as all Outlooks issued today online.
Jan 17, 2024 · This page has charts of the latest preliminary severe storm reports, annual summaries, and links to comma-separated-value (csv) data files from the SPC severe weather database back to 1950.
Jan 1, 2001 · The Storm Prediction Center (SPC) is part of the National Weather Service (NWS) and the National Centers for Environmental Prediction (NCEP). Our mission is to provide timely and accurate forecasts and watches for severe thunderstorms and tornadoes over the contiguous United States.
Custom plots of Local Storm Reports across the Contiguous United States. Reports include rain, snow, ice, and severe weather, as well as other significant information from storm spotters.
Jan 1, 2001 · REMEMBER...A Severe Thunderstorm Watch means conditions are favorable for severe thunderstorms in and close to the watch area. Persons in these areas should be on the lookout for threatening weather conditions and listen for later statements and possible warnings.
6 days ago · Tue, Jul 16, 2024 - Wed, Jul 17, 2024. (All days are valid from 12 UTC - 12 UTC the following day) Note: A severe weather area depicted in the Day 4-8 period indicates 15%, 30% or higher probability for severe thunderstorms within 25 miles of any point. PREDICTABILITY TOO LOW is used to indicate severe storms may be possible based on some model ...
2 days ago · Detailed Forecast. Today. Sunny, with a high near 89. West wind around 5 mph. Tonight. Scattered showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 5am, then scattered showers and thunderstorms after 5am. Mostly cloudy, with a low around 64.
Jun 28, 2023 · *These probability values were estimated from a 30-year period of severe weather reports from 1982-2011. The procedure to create the maps is as follows: 1. Reports for each day are put onto a grid 80 km x 80 km. 2.
