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SPC's Day 1 convective outlook for May 16, 2024, issued at 2000Z, indicating an enhanced risk for severe weather from southeast Texas into southwest Louisiana. On May 14, the Storm Prediction Center (SPC) outlined a level 2/Slight risk for severe weather across portions of central and northern Texas. [11]
A high risk severe weather event is the greatest threat level issued by the Storm Prediction Center (SPC) for convective weather events in the United States. On the scale from one to five, a high risk is a level five; thus, high risks are issued only when forecasters at the SPC are confident of a major severe weather outbreak.
The Storm Prediction Center issues convective outlooks (AC), consisting of categorical and probabilistic forecasts describing the general threat of severe convective storms over the contiguous United States for the next six to 192 hours (Day 1 through Day 8). These outlooks are labeled and issued by day, and are issued up to five times per day.
Parts of Texas and western Louisiana are under a rare Level 4 of 4 high risk of excessive rainfall Thursday, the Weather Prediction Center said. More than 600, 000 people live in the high-risk zone.
High risk convective outlook issued by the Storm Prediction center at 13:00 UTC on May 6. Starting April 30, the Storm Prediction Center noted that certain models, including the ECMWF, forecasted a multi-day period of high instability and supportive wind shear across the Southern and Central Plains, [10] and by May 1, a 15% risk was added across Nebraska, Kansas, Oklahoma, and northern Texas. [11]
Over the holiday, 2-8 inches of rain poured down on portions of central Texas and part of the Texas coast. Galveston picked up 6.62 inches in 96 hours as of Tuesday morning. Drought-stricken areas ...
Power outages could last weeks in parts of Houston, an official warned Friday, after thunderstorms with hurricane-force winds tore through the city, knocking out electricity to nearly 1 million ...
Derecho. A derecho (/ ˈdɛrətʃoʊ /, from Spanish: derecho [deˈɾetʃo], 'straight') [ 1 ] is a widespread, long-lived, straight-line wind storm that is associated with a fast-moving group of severe thunderstorms known as a mesoscale convective system. [ 2 ] Derechos cause hurricane-force winds, heavy rains, and flash floods.